ICE Class D Power Amplifier New Project with ICEpower 125ASX2
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- เผยแพร่เมื่อ 9 ต.ค. 2022
- In this video 'ICE Class D Power Amplifier New Project with ICEpower 125ASX2', I’ll show the new Class D Amplifier board that will be my new project. It is the 125ASX2 from ICEpower. #ICEpower #125ASX2 #classdamplifier
Link to ICEpower 125ASX2: amzn.to/3Taksx5
Link to ICEpower 125ASX2 (lower cost): ebay.us/NPZUWK
Link to TPA3255 Amp board: amzn.to/3zVBt65
Link to Power Supply (looks better than the one I have): amzn.to/3pgfQsp
Link to box for Class D amp project: ebay.us/ETpmJx
Link to T-Shirts and more: www.redbubble.com/people/kissa...
Please use links that cost nothing extra but will help support the channel:
TPA3255 Power Amplifier board: amzn.to/3LgRZTl
GW Instek 4 channel MDO Oscilloscope: amzn.to/3rvY7PK
MicSig Oscilloscope: amzn.to/3B4DcXe
MicSig Differential Scope Probe: amzn.to/3HvRG4A
Pico Oscilloscope: amzn.to/35UytvC
IR Thermal Camera: amzn.to/3J92LJu
Silicone Blue work mat: amzn.to/37a9txL
Kaiweets Store (using this link will help support this channel): kaiweets.com/collections/hot-...
Other videos that might be of interest:
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Please support this channel that will not cost anything extra by using my link to Borbede BD-99, this meter is around $47 which is low cost for a high count meter with high accuracy:
amzn.to/3DRgUbZ
Links to support this channel that cost nothing extra;)
Fluke 87V link: amzn.to/3l4QUCq
Hioki 4256 multimeter: amzn.to/3idmexS I’ll show the enclosure that I plan to use for this project. I’ll also show the options for a pre-amplifier.
Link to TPA3255 Amp board: amzn.to/3zVBt65
Link to Power Supply (looks better than the one I have): amzn.to/3pgfQsp
Link to box for Class D amp project: ebay.us/ETpmJx
Link to T-Shirts and more: www.redbubble.com/people/kissa...
Please use links that cost nothing extra but will help support the channel:
TPA3255 Power Amplifier board: amzn.to/3LgRZTl
GW Instek 4 channel MDO Oscilloscope: amzn.to/3rvY7PK
MicSig Oscilloscope: amzn.to/3B4DcXe
MicSig Differential Scope Probe: amzn.to/3HvRG4A
Pico Oscilloscope: amzn.to/35UytvC
IR Thermal Camera: amzn.to/3J92LJu
Silicone Blue work mat: amzn.to/37a9txL
Kaiweets Store (using this link will help support this channel): kaiweets.com/collections/hot-...
Other videos that might be of interest:
EEVblog Comments on Fluke Rant: • Capacitor Types in SPI...
Fluke Rant - Are they over priced? • Fluke Rant - are they ...
Fluke Rant - Better Test Leads Please; • Fluke Rant - Better Te...
Fluke TPAK Hanging meter Kit $42 or $10; magnetic hanger comparison: • Fluke TPAK Hanging met...
EEVblog is Santa Claus - Thanks Dave!!: • EEVblog is Santa Claus...
EEVblog comments;) Fluke Rant - are they Over Priced?: • EEVblog comments;) Fl...
The Iconic Fluke 87V: • The Iconic FLUKE 87 wi...
Fluke 27 Exposed and giveaway: • Fluke 27 Exposed and G...
Please support this channel that will not cost anything extra by using my link to Borbede BD-99, this meter is around $47 which is low cost for a high count meter with high accuracy:
amzn.to/3DRgUbZ
Links to support this channel that cost nothing extra;)
Fluke 87V link: amzn.to/3l4QUCq
Hioki 4256 multimeter: amzn.to/3idmexS - วิทยาศาสตร์และเทคโนโลยี
Nice clean & efficient amplifiers. They are used in the DAS Convert 12A Line array speakers. The smaller board for the HF and the larger (medium) board for the 12inch mid range driver. The issue I have with these amplifiers is if (or should I say when) the amp fails, most of the time, the ICE ic also gets damaged. These ic's are not available. So you end up having to purchase a complete new module. I know the specs show lots of protection, but the fact is nothing is 100% protected. Abuse it enough & something will fail. When it does.... there's no repairing these.
Thanks for the feedback Arthur! Have you heard that these have a high failure rate?
@@KissAnalog Sorry I think my comment makes them sound unreliable, which wasn't my intention. They have an average failure rate similar to any other. The point I was trying to make is, when they fail, you can't repair it.
I put together a multi channel Icepower amp to power some active three way floor standing speakers I built. The amp uses the Icepower 1500S power supply and 4 Icepower 400A class D amp modules. There is also a built in DSP unit. The amplifier does everything I wanted it to do and it does it well. No complaints at all. It does get a little warm but nothing that would need forced air cooling. Icepower makes some really great products and they are very DIY friendly. It's nice that Icepower will sell their products to the DIY community that just want to build a nice amplifier for themselves and not only sell to big commercial customers. So my hat is off to Icepower for letting me build an audiophile grade amplifier and not have to spend a gazillion dollars purchasing a ready made commercial offering that use the same basic components.
What DSP unit did you use? Excuse my question, please.
@@manamimnm No problem. I used the Dayton Audio DSP408. The one I got for my amp project worked fine but a second one I got for a car audio install was a piece of junk. So take it with a grain of salt. It doesn't appear that their quality control is all that good.
I use one for my sub woofer, set to turn on with a signal.
They are very easy to use, once you get the JST connectors.
I too was suspicious about the size of the heat-sink, so I used a gap-filling silicone thermal pad between the bottom of the PCB and the case.
It has worked very well for a few years now.
Thanks John! I do wish the connectors were different, but I’ll make them work;) So far, it does seem to run cool enough, but I’ll put it through some more paces;)
@@KissAnalog The part number for the connectors are given in the datasheet, you can order them from Digikey, they are low cost. I got mine from RS Components in the UK.
I'm using these Eddie, superb amps! I use the higher output amps, I think it's 1kW per amp so they run very cool with low distortion. Have them about a year now with no problems driven by a tube preamp.
you know what would be interesting! To see if the amp keeps the tube distortion or does it get filtered out?
@@dantheman1998 It keeps it, that's the beauty of it. ICE can't differentiate second harmonics from any other signals. Think about it, a guitar with a push pedal has to relay that signal as it gets it or listeners would be very disappointed.
Thanks for your feedback!! I'm very interested in how this sounds. I have high hopes;) Have you tried driving them with a solid state preamp to compare?
@@KissAnalog Yes, the sound is relatively neutral, not as warm in SS. I think it comes down to the type of music you like and individual tastes but my ICE amp is a little different at 1kW each channel, it cruses along at my listening levels well below any distortion levels of the lower power amps and never gets more than warm which is why I went with the higher power amp modules. Again, I really think it's what you like in sound, something like a Jfet preamp might please a lot of people too. Incidentally PS audio, for one, is running ICE amps with a 12AU7A preamp stage, it goes for $6k! I haven't heard it but the 12AU7A doesn't have the dynamics of the 6922 tube if you ask me after experimenting with both tubes.
My preamp is a little different, it's a hybrid running a 6922 into an OPA627 which is on the warm side itself. I'll PM you out a schematic and you can beat it up.
This makes sense. I'd love to see the schematic. I'm interested in designing a JFET preamp, but then i wonder if a JFET OpAmp would be the way to go?
Great content, love the channel. 👍
Currently working with two Icepower 1200AS1 boards myself. They will be driving a pair of surround speakers, Definitive Technology bipolar. The location of these speakers doesn't facilitate the use of cabling. I'm using a set of dual channel 2.4/ 5GHz wifi transmitter/ receivers that output a single-ended (RCA) signal. The 1200AS1 is fully balanced so I'm using a THAT corporation 1646 balanced line driver IC for line level conversion. These boards are way overkill for my power requirements. It’s a temporary solution unti Icepower releases a new board design early 2023. At that time I will use both 1200AS1 boards as my main power amp replacing a Denon integrated unit.
Wow - very interesting project! Thank you for sharing this with us;) I'm really interested in how this amp sounds;)
you could use the pots with a metal strap going through the threaded portion of the pots acting like bolts holding a metal strip that spans the back of the meters
Thanks David! That's a great idea!
That ICE Power amp was considered good enough to make it into Jeff Rowland's Model 125 amps. His amp has his own designed and built pre-amp feeding into the ICE amp. It's a nice amp, costs about $3k.
Wow, thanks for this feedback Fred Flintstone!! I have high hopes;)
First of all, thank you very much for this video. good job! want i want to know is... i recently ordered a XTZ A2-300 d-class for my main speaker (dali opticon mk2).. i was wondering if this amp would be a fit to my other speakers such as rear back and surrounds. i am going to plug the amps to my marantz 6015 and use it as a preamp. (all speaker are opticons... plus 4 inceiling dayton audio)
I just built TPA3255 and I’m tickled pink. Never heard class d sound so good. Wondering if these ice modules would be even better.
Thanks for this feedback!! I will finish my TPA3255 project as soon as I get a new enclosure;) I do want to compare it to this ICEpower amplifier;)
I use two of these, one per channel 425Watt @ 4 Ohms, excellent amps!
Wow - thanks for the feedback!
Thanks! I would hope for around 85% efficiency on a class D amp. Do you know what the max signal input voltage it can handle? In car audio I try to have a signal voltage of 3 to 5 volts. One site you should check out is parts express. They have a pretty nice selection of audio equipment. I just ordered some speaker cabinet kits with a crossover kit. Have you ever thought of crossover builds for the channel?
Thank you for your generosity!!! I'll test that and show it in a video very soon. I'm going to try and get this in the enclosure for final testing this week;) I have done some videos on crossovers, but I want to do more and show how I've designed them in the past;) Here's one of my videos: th-cam.com/video/kawTphp-sTk/w-d-xo.html
wow...very impressive, hope the have something like 1400W 4ohm.
LOL thank you!
@@KissAnalog I just went thru their list found the 1200As1 1400@4ohm... wish they had plates to just cut a hole on my subs, wire XLRs in-out and power con..
Eddy great video. Looks like an awesome little amp. I can't believe they shoehorned the power supply on that board.
Thank you! They are squeezing in a lot of circuitry. I want to get back to fully testing this amplifier.
@@KissAnalog not enough hours in the day for creatives. Im doing a little TDA7498E amp 2.1 amp 160x2 plus 220w. Have you ever tested one of those? Budget chinese amp. I saw your TPA3255 2.0 amp.
I will start doing more amp testing...I am going to ramp up my videos;)
Hello! Liked what you did with the thermoscan. Would you mind sharing what was the ambient temperature?
Thanks for the question. At about 42:54 min the cold spot on the screen is about 19.5C;)
@@KissAnalog Deeply appreciated. I am quite keen to build one - a dilemma on my mind has been the design is now a bit aged. I looked at alternates but there seems to be limited options at that price point. It would interesting to hear your views.
Where is your power supply project ?
Good luck getting an answer. If you do it might not be the right one because he didn't actually read the question
Thanks for asking! I've been working on a revision, but not sure if I want to go that direction yet. I'll be posting new videos this week on the PS project.
Why so salty Joey? How many creators answer personally as many comments as I?
He lost motivation and scrapped the idea
@Randy Sterling I'll have more videos out this week on the PS. I had some videos that I ended up scraping because of technical issues. This last month has been a real problem finding time to recover and catch up on my videos. But I will:)
If I dove into class D again, it would have to be a quiet amp , and not have a vague, and noisy treble. My class D audio sds-470C amps (2014). had those issues, the ps hum was way too loud. The mids and bass were fine, the treble sounded vague and rolled off. Very load variant.
I'm thinking about using class D for bass and mids and class AB for highs. Sure, I will have to use active or digital crossover.
how much is the supply volts for the Amplifier voltage?
Thanks!
Thanks Sven!
Cool beans! ☕️ Love how you present this stuff, although it’s way above my head. 😬
HI Eddie, I really like your videos they are interesting and very informative. Thank you for your time to do them. 😃 👍
I appreciate you!
Hi,
Do you have a link for the ice amp?
Thanks for asking! I added 2 links in the description, and here is the one to the lower cost (but shipped from China): ebay.us/NPZUWK
Wondom have one looking same and pascal amp have many new amps wihout power supply
Hi Eddy any news on JAT 501 PSU /...cheers.
Thanks for asking! I had a few set backs but I will have a video out this weekend!
Class D has power quantity but not analog quality.
Bang & Olufsen makes really nice looking products that are “high tech”, sound pretty good (in a regular hifi way) but tend to be quite low on reliability as per what I have experienced owning some of their products ... as far as sound... not what I consider High End or even in the league of: (Nelson Pass, Threshold, PS Audio, Classe Audio, Audio Research, Esoteric, Krell, Conrad Johnson, Jeff Rowland, Manley, McIntosh, Mark Levinson, etc... to name a few) ... so this little ICEpower is probably cool but I would really be wary about it’s ultimate sound (as is, not super modified by High end manufacturers) and it’s reliability ... I guess I might have to buy one and see for myself but I do own a couple of Nelson Pass designed ACA (Audio Camp Amps) and love them 🤠🤔
Thanks for your feedback! I have a video series on a Nelson Pass Amp that I built and modified:) th-cam.com/video/D_b-i4VSjYc/w-d-xo.html
@@KissAnalog …. Sweet …. I will look for it … thank you