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nice test, i like the yamahas the most, very sharp in a good way and less pronounced lows as i was expecting would be interesting to hear different genres or instruments too i have the krk rokit 6 g3 and was thinking about getting some yamahas but as my main genre is hiphop i thought i might miss the more pronounced lows in the yamahas when mixing these 808s but this also could be a good thing

A20 is perfect for guitar range - more upper mids than A21 to cut thru, less low mids mud like A21 has. A20 just tighter more detailed. Even for pro audio A20 would be superior, going from 10hz to 50khz, where A21 is 30 to 30khz

A20 is perfect for guitar range - more upper mids than A21 to cut thru, less low mids mud like A21 has. A20 just tighter more detailed. Even for pro audio A20 would be superior, going from 10hz to 50khz, where A21 is 30 to 30khz

😂 I have just noticed that I did the comment above with my kid’s account. Once again, great video. Another like and subscribe.😊

Very nice video showing the waveforms. Thanks for posting.

That is an insane difference in sound without and with a UTC in the chain if that's same mic position and everything... Rolls the low end off a little and pulls everything into focus. Wild.

Back in 1984 to 1985 I worked at UTC in Manhatten. I was the final Electrical Quality Control inspector before anything went out the door. Many very high quality stuff was made there.

Hi, very helpful video, I have one of my v6 (same as yours) that have a more pronounced buzz/ground noise like, the other is quiter but remain noisy (rispect of ns10), after turn the toroid became totaly quite like modern monitors? Thanks, regards

Instead of using tongs and possibly scratching up the boards you could've just took out the basket lol.

What size machine did you decide to go with?

Why are all the cleaning solutions so expensive? 😫

These transients are so amazing... I love overhead transients, but I still haven't found away to make them work with close mics, without getting flamming sound

You need a dish drainer/rack to put your parts in in post wash. To save yourself some mess and cleanup.

From sewing machine to maybe not being run the fuck over because they at least hear you 😂

The runt had a bad batch of capacitors. Friedman called the amps... i think they corrected it after 2019

Larger value resistors are quieter than lesser, look up shot noise, mechanical noise, the paint caused the body to not provide ground/faraday shielding, big waste of time though it worked out for u

Heard “Fool In the Rain”

A-21 win~

ROCK ON

KRK speaker was exhibiting buzz in both the tweeter and woofer. The circuit looked fine, but I replaced the PSU components hoping it would resolve the issue. It did not. The buzz was still there. I started probing the preamp to see where it was coming from but it seemingly appeared out of nowhere between two stages. Turns out the power transformer toroid rotated in shipping and the new orientation induced buzz/hum into the surrounding components. Easy fix but hard to find!

Wow I need lessons

Here's what my guitar amp sounds like! There's only five of these amplifiers in the world 🌎 each one built by me! They're single channel, 50 Watts, and all tube. Featuring four 12AX7 preamp tubes and two KT66 power amp tubes. What makes them unique (other than the looks!) is the positioning of the modifier switches in the circuit layout and how these switches react to sculpt your tone. This is iPhone audio because i'm lazy and honest. #guitar #amplifier #tubeamp

How did you remove C50?

I just looked at website. They have a kit for the tube M49. It’s on back order now but I may order two kits when I can.

awesome and funny...really love these guys... liked and SUBSCIBED !!.. KEEP ROCKIN HOSS

Unrelated question on this amp -- Is there a place to find descriptions/meanings of the relay designations in the schematic: RYTS; RYOD; RY2; RYE, RYA, etc? I am looking at the preamp schematic and having a hard time understanding how the signal flows in any given mode. Is this correct for clean channel in clean mode: Input --> V2B --> CH1 Tone Stack --> Ch 1 "Gain Control" (1 MA pot) --> V1B? And then "crunch" mode of channel 1/clean channel would be: Input --> V2A --> CH 1 Gain Control --> V2B --> CH 1 Tone Stack --> V1B?

It sounds fantastic. The sound could use some treble. I have a pair of the Scamp 01's but they're not as good as the Compex.

Yo what size are those floor toms?

I heard Dave had a bad batch of caps early on

Great work, I honor your intelligence, drive, and follow through. Will you be creating a product or selling to the DIY community?

U47 for me is more soft and more slowly vs C12. The C12 is more agressive and fast...i hear with Focal solo 6

Interested in buying a board from you. I think I'd build this but I want it as quiet as yours

A nightmare to repair.

Great build and video ! The U47 body come from AMI ? They seems to not sell body with pattern switch...? Thanks

Sorry, signed in correctly now. About those boards... :)

Thanks for the vid, Eddie. Can I purchase 2 of your boards?

Wonderful stuff! So informative! I just learned so much about the innards of guitar amps in 7 min 💪 Thanks for the content Eddie!

That’s actually sick

lol 2017 2018... i'm 1963

what gauge of wire did you use for this build?

really cool seeing the process

Just picked one up. Total 80s beast!

3d printed?

Is that what TAme Impala used on the early albums?

Nice to see someone actually demonstrate why transformer orientation and placement is important to reduce coupling. (Just think how low it would be with a switching supply!) Also like that 1) you have a good quality scope and 2) you have it in high resolution mode to improve the effective bit range and lower the noise floor. Oversampling each point in Hi Res makes a huge difference. Weird how TH-cam got me here. Happy it did! (You could do a voice over on this one if the mood strikes you one day, but the vid does speak for itself..)

Hey Eddie, thanks for doing this, I like what you're doing and I'm currently working through my tone on a total rebuild of a Traynor YBA I've owned since the 80's. I'm at a point of doing similar tone tweaking, so it's right where my head is at. Also good to see the integration of the software and parts sourcing. Any thoughts on the Chinese component quality vs buying from Mouser, Digikey etc. Totally agree on the PT replacement too. Thanks for sharing! Much appreciated.

It went from squeeky mouse to growling lion.

0:00 His Hands Matched His Tongue (The Dear Hunter cover) 1:20 Death of a Clone 10:31 Dr. Breacher and the Time Travel Anomaly

0:00 Bloodmeat (Protest the Hero cover) 5:04 Brand-New Remedy 12:30 Dr. Breacher and the Time Travel Anomaly

0:00 Brand-New Remedy 6:56 Death of a Clone 15:34 Happy Birthday (to Brian) 17:31 Gravity of the Bulls