Steve, I just finished building the Pass DIY Audio Amp Camp Amp yesterday! I bought the kit on whim to see if it could comfortably drive my Tekton Double Impact speakers. Well! It not only worked perfectly right off my work bench, the sound is shockingly good! My Tektons never sounded better with deep fast bass, involving soundstage with depth, width and height AND PACE. My deepest thanks to Nelson Pass for his simply brilliant amp design and to DIY Audio for offering this easy to build amp kit with really good online build instructions, videos and support. I aso want to thank you, Steve, for the wonderful Nelson Pass TH-cam videos of this self effacing audio genius! Cheers!
Don Wilkerson, the preamp is a Project “Pre Box S2 Digital”, a DAC with a digital volume control. I have. Schiit Freya on the way. My wiring and cables are all home-brewed DIY.
@@donwilkerson build a whammy headphone amp that also happens to work terrific as a preamp for these amp camp amps. It's available on the diy audio store as well and designed by Nelsons right hand assistant wizard there at pass labs😀 you can build it just as a preamp, just as a class a headphone amp or build It to include a switch to go from a preamp to a class a heaphone amp. Also other options for simple preamp builds on diy audio. 😀
I'm 41 years old. I work in the science and education fields. I feel like my generation and those younger could do with more guys like Steve and Nelson. The lack of arrogance and bullshit is so refreshing. Especially in HiFi. The focus on getting as many people into the best experience they can have is what it's all about.
Have been a fan of Nelson Pass since the '80s. Never would have dreamed I would get a nod of approval from him directly of the ACA I built from a pair of the available circuit boards on diyaudio site. Hat's off to Nelson Pass for being directly involved and being so open source with his knowledge. Not to mention all of the other bright minds he has managed to drag out of the woodwork with his thinking out loud on these topics.
I built the Amp Camp Amp as well. It was my first amp building experience. I had no idea how good that amp sounded prior to building it. For anyone who might be interested, the performance out of that little box is truly amazing. It's well worth the effort and expense. It's easy to build and doesn't cost a great deal of money.
I bought and built one of the stereo versions. It was tons of fun and sounds great. I liked it so well that I bought a second one and am using them in mono, one for each channel. I already own a Pass Labs Aleph 3 amplifier (great amp) and it’s amazing how much the Amp Camp Amp sounds like the Aleph 3. All are great amps. Nelson Pass is the genuine article!
Really short one today. I just want to say thank you to Steve and Nelson. The more I hear both of you speak, the more I like you, both. That little amp case actually looks pretty nice. I'm tempted to get one just to try building it. Maybe my kids would be interested in building one.
Those are excellent to build for kids old enough and great kids and parent project for teaching circuits and electronics. And to boot you get a fantastic amplifier from one of the legendary amp designers😀 and if you ever decided to sell them you will be get most of you $$ back.
Nelson is such a cool guy. Just so laid back and seems like a simple man. Who’d know this man builds and designs some of the finest audio equipment in the world. I wished I could afford his stuff. I may have to build myself and Amp Camp Amp though. Merry Christmas, All!
I have built a total of three of these little gems - both the original mono-blocks, and a pair of the more recent stereo kits from DIY Audio store. I have built a fair number of solid state and tubed kits before - going back as far as Hafler from the late 70's / mid 80s, before a bit of a hiatus until the late 90's and early '00's . These are about as drop dead simple a kit as I can imagine, and within the operational limits of their modest ow power ratings, quite a delightful sounding little piece. Within the applications to which they were used - low 90db range sensitivity full range drivers, as the budget couldn't afford high efficiency exotica such as Lowthers, Tannoys, etc (or the physical space required for enclosures to do such drivers justice) - they punched way above their price class. That said, his higher powered, and substantially higher priced First Watt designs are on another plane altogether, something with which - as I think you now include a SIT3 in your electronic harem - you are quite aware. The DIY Audio world owes papa more plaudits than we can deliver. Thanks Steve for sharing these short interviews with those of us who are familiar with his work since the days of Threshold, but who've never been fortunate enough to interact with him directly - these come across with such genuine intimacy that we feel like we've just sat down for a coffee or beer with him.
You should hear them driving 105db plus Lowther back loaded horns. The simplicity of the design resulting from not having to deliver huge watts pays off in spades when hooked up to efficient speakers.
Thanks Steve and Nelson. All I need is my eyesight back, or brighter lights on my headset magnifier. I haven't built an amp in nearly 30 years now, but am definitely feeling the urge. Those SITs look fascinating...
Been waiting for this video! A whole bunch could be devoted to all the projects nelson has designed for the diy audio folks! About to hopefully put together both of my monoblock amp camp 1.6 class a amps soon. And also my whammy class a heaphone amp/preamp, which was designed by Wayne (nelson passes assistant designer at pass labs) and a aleph j class a amp nelson also designed that I have been collecting parts for. Thanks for the shout out to diy, nelson, Jim timmerman, Wayne, burning amp and many other brilliant folks that have made this happen in their spare time over the years😀 nelson needs to show of some of the many amps be has in his collection😀 maybe even some of them rare Sony vfet 40th anniversary ones😀
I know this vid is a few days old but I am waiting for the chassis to ship (the black is back ordered) from Italy and I'll build my ACA. I can't wait! Thanks to Steve and Nelson!
Thanks guys. I had no idea Nelson was so involved with the DIY folks. Here's a no nonsense enthusiast who will leave a legacy of amp builders and , hopefully repair techs ;-)
Carlito Melon You have no idea. He is truly a phenomenon and class A person. Just check out his stats on diyAudio forums (e.g. member since 2001, +16k posts).
@@joshua43214 A friend and I checked out the amp camp site. Looks like a fun project. Nice casework too. I'd have to brush up my soldering skills after so long. I wonder how 8w would drive my 90db Rega Naos transmission lines...
He is very generous at diy audio site and he even chimes in on that pass labs forum a good amount. Heard he answers emails as well. Very generous and fun person. Someday would like to meet him at burning amp festival 😀
I have one of these. It took about 2 hours to build, although it was not my first project. It sounds stupidly good. It is currently in use in a tri-amped system paired with two single ended triode tube amps. It powers the ribbon tweeter and matches quite well with the tubes. If you want to explore the single ended world, this is a good place to start. It is inexpensive, powerful enough to run a wide variety of speakers and still has that single ended magic. I suspect that after this video, DIYaudio will sell out of these kits fast.
Was tempted to order one of these just for fun but then I started wondering about the SMPSU and also the fact that I could pick up a NAD 316BEE V2 for around the same price.
But the NAD isn't Class A single ended. Nelson discussed the use of the switching power supply in his written explanation of the design, knowing audiophiles abhor switching power supplies. If I remember the qoute properly it was: "It works. Get over it." Nelson Pass doesn't care about convention.
Mike Cees, I have just completed the Pass / DIY Audio ACA yesterday. In my somewhat larger listening room this little bitty power amp is shockingly better than my NAD 326BEE driving Tekton Double Impact speakers! There is no comparison in sound quality at reasonably dynamic listening levels. This single ended Class A 8 watt per channel cub roars like a tiger. No, the NAD is not going back into my system. If you don’t want to build or solder, I’ll sell you my NAD.... Cheers!
@@motorradmike ...sell me my what? I have no problem with the soldering part, did many DIY projects a few years back. I just don't want to build something that will end up collecting dust in my closet. That being said you guys have convinced me that this is a serious sounding amp and I might give in and order one when the cold autumn weather rolls in. BTW - I wish Nelson would create a line of integrated amps that are affordable for the masses. By affordable I don't mean 5K.
about diy.passlabs have AMP use 3886 X3 one channel or BTL something like that?? LM3886 very good for beginner DIY.that little amp, simple and easy to build, sound not bad.
"We could hook it up to the Tannoys" (eyebrow raise) Would love to be at a "camp" where Nelson was a part of the experience. His infectious enthusiasm for audio is what more people need to get a taste of before the big conglomerates take completely over.
I've known Nelson for many years. One of the best guys and extremely talented electronics designers ever. I bought and built one of the ACA's and it is indeed TERRIFIC! Very limited in power, but with the right speaker, it's pretty killer!!!
To The Max, your 8 ohm speakers are an easier load to an amplifier than my 4 ohm rated speakers even though they are spec’d at 97dB efficiency, 4 ohm speaker require more current generally speaking. How loud you play music is something only you can answer. I play music at a room filling volume level. Not let’s party loud. A single ended 8 watt amp does not have a lot of headroom, class A or not. To my knowledge the Amp Camp Amp is rated the same for 8 and 4 ohm output. Someone responded to me that the ACA acquitted itself quite well with his 88dB speakers and the “little amp that could” compared favorably with triode tube amp. He didn’t say what his tube amp is rated at. The kit is a stereo 8 watt x 2. The Pass stereo amp can be bridged for mono block by using an XLR’ for each channel or internally with a switch if you are using single ended interconnects depending how construct it. I opted for the XLR connection if I decide to go mono block. The Amp Camp Amp Nelson was holding up was the original mono only amp. The revised DIY Audio amp kit is 2 channel stereo.. I hope this helps.
@@brandonburr4900 I have a Don Sacks tube pre amp driving the Amp Camp. The Forte 2s sounded ok (25 yrs old), going to change them out to a more modern speaker, the Zu Omen Defs I have. I took the Amp Camp to Watkins Stereo for Mr Watkins to hook up in his listening room, driving his Gen Fours speakers, sounded great, he was impressed with the little amp, but was just a tad short of power. Making mono blocks will be the way to go.
Has anybody here tried the amp camp amps on a pair of betsy baffle (wild burrow) full range drivers speakers? I pickup up a pair for check to experiment with and sorta surprised how well they sound on a pair of cheap Chinese class a jlh 1969 amps. I think these are also sold on decware's site and mate well with their low powered tube amps.
I have one. Building it is not hard, and it's amazing what you can do with 8 watts. I'm using it to drive my Harbeth P3ESR speakers. And when I get around to quint-amping my Infinity RS1b speakers, I'm going to use it for the tweeters.
@@InsideOfMyOwnMind Actually he most closely resembles my dear departed friend Jerry von Bamberger who originated from San Francisco. Not just the look and the voice, but also the philosophy.
@@jim9930 I did! I made two. One is called Thomas and the other is called Kieron. Much as I love them, they are manifestly not Nelson Pass. Nor do they seem at all interested in their dad's obsession. They are more into computers and humungous computer monitors.
@@jim9930 Back in the 1970s, I built two of these (minus the first stage) on a single chassis and a preamp/controller using a twin triode (12AU7 IIRC) on a separate chassis: www.sturmsoft.com/images/9wattamp.png The amp drove a pair of Richard Allan 8 inch, full range drivers. One was a sealed box and the other was bass reflex but identical cabinet volume. I was curious to hear the difference between them for myself. A bit early in the day for me for whiskey. I don't eat mandarins or cumquats, but I am rather partial to the liqueur my wife makes by soaking them in brandy. It's a fair bit cheaper than Grand Marnier and just as tasty :-)
Don't push the river, swim against the stream of conventional values and pursuits . Nelson Pass, thanks for sharing insight & caring. Also your absolutely right, subjective listen tests confirmations by members on diyaudio.com does support that ACA AMP is a good choice to DIY. As one member wrote to me, you get plenty, good quality for little amount of money. I must confess you will not get my personal subjective / objective analysis. OTOH it's not even important , majority are often mostly right, right. Yes "bonsai" MRI scanning I use thought mostly with a laptop running Windows for horses . Not for humans I'm not qualified.
Steve, are you interested in reviewing a new audiophile product? I'd love to hear if you enjoy our LP1 tube preamp (at www.tenoctaveaudio.com.) Happy to arrange a demo.
@@doriarama You sound like the "qualified" builder who told me he could have built The House of Steel for $80,000. It cost me $170,000 to build. Material costs were $100,000 and labour was $70,000. He declined to tell me who he would have ripped off, the suppliers or the workers.
It's hardly like Mr Pass needs to do this. He's the kind of educator that we should be grateful for. He has inspired more people in the audio industry and DIY audio world than probably anyone else - and his stuff sounds great to boot. Sure, you can spend a lot of money, but then you don't have to if you don't want to - many people follow on in low-budget projects and he and his fellow enthusiasts are just as happy to answer their questions too.
I built the Amp Camp Amp last year duel mono block with duel linear mono power supplies from diyaudiostore. Right now I’m building the BA-3 preamplifier designed by Nelson to complement my mono block ACA. These kits for their price certainly beat all the Big Box franchise names with the fancy advertisement in the box stores for sound quality. End Game a quad amp system line stage crossover Homebuilt speakers dual mono blocks on everything separate power supplies XLR
I'm thinking of building a ba3 preamp as well. I have heard Waynes (nelson pass assistant at pass labs) has a whammy class a headphone preamp that works great as a preamp with the amp camp as well. You can add a switch so you get a terrific heaphone amp as well that will drive any headphones. Now I just need to build my whammy and class a 1.6 amp cam monos😀
Brandon Burr Here is the link that do it yourself audio store build the BA-3 as a preamp www.diyaudio.com/forums/pass-labs/234641-ba-3-preamp.html This link is for the BA - 3 as a preamp build guide www.diyaudio.com/forums/pass-labs/258022-ba-3-preamp-build-guide-85.html And with this below link you can find everything from Pass labs the whammy and the amp camp amp www.diyaudio.com/forums/pass-labs/
Steve, I just finished building the Pass DIY Audio Amp Camp Amp yesterday! I bought the kit on whim to see if it could comfortably drive my Tekton Double Impact speakers. Well! It not only worked perfectly right off my work bench, the sound is shockingly good! My Tektons never sounded better with deep fast bass, involving soundstage with depth, width and height AND PACE. My deepest thanks to Nelson Pass for his simply brilliant amp design and to DIY Audio for offering this easy to build amp kit with really good online build instructions, videos and support. I aso want to thank you, Steve, for the wonderful Nelson Pass TH-cam videos of this self effacing audio genius! Cheers!
What pre-amp do you use, cables etc? I have a Fi amp & pre-amp and am thinking of a change...
Don Wilkerson, the preamp is a Project “Pre Box S2 Digital”, a DAC with a digital volume control. I have. Schiit Freya on the way. My wiring and cables are all home-brewed DIY.
@@donwilkerson build a whammy headphone amp that also happens to work terrific as a preamp for these amp camp amps. It's available on the diy audio store as well and designed by Nelsons right hand assistant wizard there at pass labs😀 you can build it just as a preamp, just as a class a headphone amp or build It to include a switch to go from a preamp to a class a heaphone amp. Also other options for simple preamp builds on diy audio. 😀
Thanks!!
@@motorradmike Thanks!!
I love that Nelson is active in the DIY community. He’s so willing to share his immense knowledge. Thanks!
Nelson we love you. Thank you for your wisdom and grace. Audiophile Guru
I'm 41 years old. I work in the science and education fields. I feel like my generation and those younger could do with more guys like Steve and Nelson. The lack of arrogance and bullshit is so refreshing. Especially in HiFi. The focus on getting as many people into the best experience they can have is what it's all about.
I want to build my own Class A amplifier, but sadly there is no one who actually tells how and explains what it does.
Have been a fan of Nelson Pass since the '80s. Never would have dreamed I would get a nod of approval from him directly of the ACA I built from a pair of the available circuit boards on diyaudio site. Hat's off to Nelson Pass for being directly involved and being so open source with his knowledge. Not to mention all of the other bright minds he has managed to drag out of the woodwork with his thinking out loud on these topics.
I built the Amp Camp Amp as well. It was my first amp building experience. I had no idea how good that amp sounded prior to building it. For anyone who might be interested, the performance out of that little box is truly amazing. It's well worth the effort and expense. It's easy to build and doesn't cost a great deal of money.
Gary Alexander, amen, brother!
I bought and built one of the stereo versions. It was tons of fun and sounds great. I liked it so well that I bought a second one and am using them in mono, one for each channel. I already own a Pass Labs Aleph 3 amplifier (great amp) and it’s amazing how much the Amp Camp Amp sounds like the Aleph 3. All are great amps. Nelson Pass is the genuine article!
If you had to describe Nelson Pass in a single word it would be fun. He genuinely seems to be having fun with his craft.
Really short one today. I just want to say thank you to Steve and Nelson. The more I hear both of you speak, the more I like you, both.
That little amp case actually looks pretty nice. I'm tempted to get one just to try building it. Maybe my kids would be interested in building one.
Those are excellent to build for kids old enough and great kids and parent project for teaching circuits and electronics. And to boot you get a fantastic amplifier from one of the legendary amp designers😀 and if you ever decided to sell them you will be get most of you $$ back.
I built one of these a couple months ago. It simply sounds amazing. It's the best bang for your buck in the amp world IMO.
Using his ACA since the last 2 months with a B1 buffer and Frugal horns :) mesmerized what few watts can do!
Siddhant Merh, just finished mine. It is stunningly good!
@@motorradmike :) (y) want to try one of his transconductance amp. As I am a full ranger guy it suits my needs..
DIY = 😀 - Thanks for posting Steve. Time to order parts and warm up the scope & soldering iron. Please pass along a thank-you to Nelson P.
Nelson is such a cool guy. Just so laid back and seems like a simple man. Who’d know this man builds and designs some of the finest audio equipment in the world. I wished I could afford his stuff. I may have to build myself and Amp Camp Amp though.
Merry Christmas, All!
I have built a total of three of these little gems - both the original mono-blocks, and a pair of the more recent stereo kits from DIY Audio store. I have built a fair number of solid state and tubed kits before - going back as far as Hafler from the late 70's / mid 80s, before a bit of a hiatus until the late 90's and early '00's . These are about as drop dead simple a kit as I can imagine, and within the operational limits of their modest ow power ratings, quite a delightful sounding little piece. Within the applications to which they were used - low 90db range sensitivity full range drivers, as the budget couldn't afford high efficiency exotica such as Lowthers, Tannoys, etc (or the physical space required for enclosures to do such drivers justice) - they punched way above their price class.
That said, his higher powered, and substantially higher priced First Watt designs are on another plane altogether, something with which - as I think you now include a SIT3 in your electronic harem - you are quite aware.
The DIY Audio world owes papa more plaudits than we can deliver. Thanks Steve for sharing these short interviews with those of us who are familiar with his work since the days of Threshold, but who've never been fortunate enough to interact with him directly - these come across with such genuine intimacy that we feel like we've just sat down for a coffee or beer with him.
You should hear them driving 105db plus Lowther back loaded horns. The simplicity of the design resulting from not having to deliver huge watts pays off in spades when hooked up to efficient speakers.
I built the Zen amp years ago. Great little project. Thanks for sharing your knowledge with us Nelson.
Thanks Steve and Nelson. All I need is my eyesight back, or brighter lights on my headset magnifier. I haven't built an amp in nearly 30 years now, but am definitely feeling the urge. Those SITs look fascinating...
Wish those sit kits would come back on sale. Hoping for another batch with not using rare Sony vfets😀
Been waiting for this video! A whole bunch could be devoted to all the projects nelson has designed for the diy audio folks! About to hopefully put together both of my monoblock amp camp 1.6 class a amps soon. And also my whammy class a heaphone amp/preamp, which was designed by Wayne (nelson passes assistant designer at pass labs) and a aleph j class a amp nelson also designed that I have been collecting parts for. Thanks for the shout out to diy, nelson, Jim timmerman, Wayne, burning amp and many other brilliant folks that have made this happen in their spare time over the years😀 nelson needs to show of some of the many amps be has in his collection😀 maybe even some of them rare Sony vfet 40th anniversary ones😀
I know this vid is a few days old but I am waiting for the chassis to ship (the black is back ordered) from Italy and I'll build my ACA. I can't wait! Thanks to Steve and Nelson!
That's really awesome how down to earth he is in a business full of people who are so not
Mr pass pleaze live for ever!
👍👍The best 🙌 🙌 legendary designer this will be a legendary interview oh and oh and let's not forget legendary reviewer👍👍💪💪😍😍
I’ll be getting into the amp camp kit once my daughter is a little older...not sure I want to wait that long though!
I just finished a basic electronics course online. I think I'm ready to give this a try.
I have Nelson A40 diy 40w pp A-class amp...work last 20 years...still very good..
"everyone left with a working amplifier..... i had to stay late" 😂😂😂
Nelson Pass is the Guru of amplifier design....
Thanks guys. I had no idea Nelson was so involved with the DIY folks.
Here's a no nonsense enthusiast who will leave a legacy of amp builders and , hopefully repair techs ;-)
Carlito Melon You have no idea. He is truly a phenomenon and class A person. Just check out his stats on diyAudio forums (e.g. member since 2001, +16k posts).
I actually had him reply to one of my questions in the M2x thread at DIY audio.
The community really owes this guys a lot for his involvement.
@@joshua43214
A friend and I checked out the amp camp site.
Looks like a fun project. Nice casework too.
I'd have to brush up my soldering skills after so long. I wonder how 8w would drive my 90db Rega Naos transmission lines...
He is very generous at diy audio site and he even chimes in on that pass labs forum a good amount. Heard he answers emails as well. Very generous and fun person. Someday would like to meet him at burning amp festival 😀
I have one of these. It took about 2 hours to build, although it was not my first project. It sounds stupidly good. It is currently in use in a tri-amped system paired with two single ended triode tube amps. It powers the ribbon tweeter and matches quite well with the tubes. If you want to explore the single ended world, this is a good place to start. It is inexpensive, powerful enough to run a wide variety of speakers and still has that single ended magic. I suspect that after this video, DIYaudio will sell out of these kits fast.
These have already been selling out left and right. Had to wait for months on a list to get my amp camp 1.6 monos. Now just got to build them😀
Its almost wrong its sounds so good its like 4d music
Another home run...awesome!
A cute small class A mono block. nice sounding too. I scratch built mine , but mine are bulky ,compare to this mono block.
Was tempted to order one of these just for fun but then I started wondering about the SMPSU and also the fact that I could pick up a NAD 316BEE V2 for around the same price.
But the NAD isn't Class A single ended. Nelson discussed the use of the switching power supply in his written explanation of the design, knowing audiophiles abhor switching power supplies. If I remember the qoute properly it was: "It works. Get over it." Nelson Pass doesn't care about convention.
Although the price makes it nicely accessible, the focus isn't the price, ... it's about the sonics.
Mike Cees, I have just completed the Pass / DIY Audio ACA yesterday. In my somewhat larger listening room this little bitty power amp is shockingly better than my NAD 326BEE driving Tekton Double Impact speakers! There is no comparison in sound quality at reasonably dynamic listening levels. This single ended Class A 8 watt per channel cub roars like a tiger. No, the NAD is not going back into my system. If you don’t want to build or solder, I’ll sell you my NAD.... Cheers!
FOH3663, AMEN!
@@motorradmike ...sell me my what? I have no problem with the soldering part, did many DIY projects a few years back. I just don't want to build something that will end up collecting dust in my closet. That being said you guys have convinced me that this is a serious sounding amp and I might give in and order one when the cold autumn weather rolls in. BTW - I wish Nelson would create a line of integrated amps that are affordable for the masses. By affordable I don't mean 5K.
It looks like the first electro companiet 'class a ' 2x12watt...imhe one of the best sounding amps i heard
about diy.passlabs have AMP use 3886 X3 one channel or BTL something like that?? LM3886 very good for beginner DIY.that little amp, simple and easy to build, sound not bad.
"We could hook it up to the Tannoys" (eyebrow raise)
Would love to be at a "camp" where Nelson was a part of the experience. His infectious enthusiasm for audio is what more people need to get a taste of before the big conglomerates take completely over.
Yes the eyebrow raise says it all! Tells me he likes nothing better then hooking up components to hear how it sounds
Presumably a similar model to my friend's Tannoys. They are amazingly efficient. And big. And exciting.
It's so fun to watch him do that. Lots of alligator clips and components hanging in the air. His listening room is a blast to experience
Just wonderful, thank you for making the video
I've known Nelson for many years. One of the best guys and extremely talented electronics designers ever. I bought and built one of the ACA's and it is indeed TERRIFIC! Very limited in power, but with the right speaker, it's pretty killer!!!
But it's not about power. It's all about what it _sounds_ like.
Mr. Audio, it is indeed! Just finished mine yesterday! It my Tekton Double Impacts sing like they never have before.
Would 90db 8ohm speakers be ok and are these mono blocks? as I am tempted but 8 watts of power may fall short, love Class A amps
To The Max, your 8 ohm speakers are an easier load to an amplifier than my 4 ohm rated speakers even though they are spec’d at 97dB efficiency, 4 ohm speaker require more current generally speaking. How loud you play music is something only you can answer. I play music at a room filling volume level. Not let’s party loud. A single ended 8 watt amp does not have a lot of headroom, class A or not. To my knowledge the Amp Camp Amp is rated the same for 8 and 4 ohm output. Someone responded to me that the ACA acquitted itself quite well with his 88dB speakers and the “little amp that could” compared favorably with triode tube amp. He didn’t say what his tube amp is rated at. The kit is a stereo 8 watt x 2. The Pass stereo amp can be bridged for mono block by using an XLR’ for each channel or internally with a switch if you are using single ended interconnects depending how construct it. I opted for the XLR connection if I decide to go mono block. The Amp Camp Amp Nelson was holding up was the original mono only amp. The revised DIY Audio amp kit is 2 channel stereo.. I hope this helps.
@@motorradmike Here is a pdf of the various outputs into certain loads:
cdn.shopify.com/s/files/1/1006/5046/files/ACA_Monoblock_Operation_RevA.pdf
Thanks for the video.
I have one of the amp camp driving a pair of forte 2s.
How is this paring? What else have you tried? Building 1.6 monos 😀
@@brandonburr4900 I have a Don Sacks tube pre amp driving the Amp Camp. The Forte 2s sounded ok (25 yrs old), going to change them out to a more modern speaker, the Zu Omen Defs I have. I took the Amp Camp to Watkins Stereo for Mr Watkins to hook up in his listening room, driving his Gen Fours speakers, sounded great, he was impressed with the little amp, but was just a tad short of power. Making mono blocks will be the way to go.
Has anybody here tried the amp camp amps on a pair of betsy baffle (wild burrow) full range drivers speakers? I pickup up a pair for check to experiment with and sorta surprised how well they sound on a pair of cheap Chinese class a jlh 1969 amps. I think these are also sold on decware's site and mate well with their low powered tube amps.
I seem to remember hearing Nelson was designing some high end mobile amps back in the day...
Is this true?
hi, i want to build a 6 watt class A headphones amp. how do i start?
What a legend.
I have one. Building it is not hard, and it's amazing what you can do with 8 watts. I'm using it to drive my Harbeth P3ESR speakers. And when I get around to quint-amping my Infinity RS1b speakers, I'm going to use it for the tweeters.
Could you give a link to the speakers you refer to ? How do you spell the name of the man ? Nelson Br...?
Nelson’s like a Rock Star...😎
Yup, he even looks the part!
And sounds a bit like one of the Cheech and Chong pair, I don't know which one. Makes you wonder...not really but you know.
@@InsideOfMyOwnMind Actually he most closely resembles my dear departed friend Jerry von Bamberger who originated from San Francisco. Not just the look and the voice, but also the philosophy.
@@jim9930 I did! I made two. One is called Thomas and the other is called Kieron. Much as I love them, they are manifestly not Nelson Pass. Nor do they seem at all interested in their dad's obsession. They are more into computers and humungous computer monitors.
@@jim9930 Back in the 1970s, I built two of these (minus the first stage) on a single chassis and a preamp/controller using a twin triode (12AU7 IIRC) on a separate chassis:
www.sturmsoft.com/images/9wattamp.png
The amp drove a pair of Richard Allan 8 inch, full range drivers. One was a sealed box and the other was bass reflex but identical cabinet volume. I was curious to hear the difference between them for myself. A bit early in the day for me for whiskey. I don't eat mandarins or cumquats, but I am rather partial to the liqueur my wife makes by soaking them in brandy. It's a fair bit cheaper than Grand Marnier and just as tasty :-)
Where are these events held?
So where can one buy these?
The David Crosby of high-end amps.
Don't push the river, swim against the stream of conventional values and pursuits .
Nelson Pass, thanks for sharing insight & caring.
Also your absolutely right, subjective listen tests confirmations by members on diyaudio.com does support that ACA AMP is a good choice to DIY.
As one member wrote to me, you get plenty, good quality for little amount of money.
I must confess you will not get my personal subjective / objective analysis. OTOH it's not even important , majority are often mostly right, right.
Yes "bonsai" MRI scanning I use thought mostly with a laptop running Windows for horses .
Not for humans I'm not qualified.
I haven't heard anyone mention Fritz Perls in a long, long time.
Would I need a phono preamp with this and a turntable?
Yes preamp with phono stage built in or separate pre-amp and phono stage to run a turntable with it.
Lovely.
Cool!
Its' a beautiful thing.
Steve, are you interested in reviewing a new audiophile product? I'd love to hear if you enjoy our LP1 tube preamp (at www.tenoctaveaudio.com.) Happy to arrange a demo.
It took you this long to tell us about this amp?!
Tsk, tsk...
Ha-ha-ha! : D
Yeah or one of the many other projects on diy audio. I think a whole video could be devoted to that😀
that's Mr. Pass ,
He must just sock away the money holy cow
Soon amp camp amp... Soon...
If it isn't expensive - it isn't Nelson Pass amp.
Quality doesn't cost; it pays!
My old Adcom GFA-535 was a Pass design -- and a bargain at the time!
@@editorjuno Maybe at the time, but not now:) beside, I am not talking about designs...
@@jonathansturm4163 There are plenty quailty products with much more reasonable prices :) so if you excuse me I will pass that quality.
@@doriarama You sound like the "qualified" builder who told me he could have built The House of Steel for $80,000. It cost me $170,000 to build. Material costs were $100,000 and labour was $70,000. He declined to tell me who he would have ripped off, the suppliers or the workers.
Nice commercial.
For a nice product - what's wrong with that?
It's hardly like Mr Pass needs to do this. He's the kind of educator that we should be grateful for. He has inspired more people in the audio industry and DIY audio world than probably anyone else - and his stuff sounds great to boot. Sure, you can spend a lot of money, but then you don't have to if you don't want to - many people follow on in low-budget projects and he and his fellow enthusiasts are just as happy to answer their questions too.
I built the Amp Camp Amp last year duel mono block with duel linear mono power supplies from diyaudiostore. Right now I’m building the BA-3 preamplifier designed by Nelson to complement my mono block ACA.
These kits for their price certainly beat all the Big Box franchise names with the fancy advertisement in the box stores for sound quality.
End Game a quad amp system line stage crossover Homebuilt speakers dual mono blocks on everything separate power supplies XLR
I'm thinking of building a ba3 preamp as well. I have heard Waynes (nelson pass assistant at pass labs) has a whammy class a headphone preamp that works great as a preamp with the amp camp as well. You can add a switch so you get a terrific heaphone amp as well that will drive any headphones. Now I just need to build my whammy and class a 1.6 amp cam monos😀
Brandon Burr Here is the link that do it yourself audio store build the BA-3 as a preamp
www.diyaudio.com/forums/pass-labs/234641-ba-3-preamp.html
This link is for the BA - 3 as a preamp build guide
www.diyaudio.com/forums/pass-labs/258022-ba-3-preamp-build-guide-85.html
And with this below link you can find everything from Pass labs the whammy and the amp camp amp
www.diyaudio.com/forums/pass-labs/