Pass ACA monoblocks!
I (finally) finished my other AmpCamp amp yesterday. Took me most of the day, but I am very careful and meticulous with my build.
Have to say that as good as the little AmpCamp amp is; it really sings as a pair of bridged mono blocks! Quite impressive, especially when you consider each amp cost all of $327 plus about $35 in premium parts. More later, but I am really enjoying these "big" little amps! :banana: (apologies for the cheesy iPhone 6S pic...I'll fix that later) https://photos.imageevent.com/puma_c.../Mono-ACAs.jpg |
Stephen,
I had to look that one up - I experienced some serious cognitive dissonance with seeing such a high-end name as Pass along with your description of a kit amp. How cool is that!!! Good for Nelson! Glad you enjoyed not only the build but the sound. Audio kits are very cool - my mechanical engineer wife and I enjoyed building a Triode tube integrated amp a number of years ago and we learned a lot. Look forward to your further impressions.:thumbsup: |
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The latest version of the AmpCamp Amp aka ACA is a revised build referred to as v1.8. This design is pretty cool as you can run it as a stereo amp, or...bridged or parallel monoblocks. https://photos.imageevent.com/puma_c...View-Wired.jpg https://photos.imageevent.com/puma_c...nnel-Board.jpg https://photos.imageevent.com/puma_c...20Rack%201.jpg |
Looks great Puma!
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How does it sound on the Dyns, and compared to the CJ amp you were using before?
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I would love to build a couple of these amps but my hands are not as steady as they once were.
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They do not look too difficult or complex... Give it a go and surprise yourself! |
Very nice. :thumbsup: One of my audio buds has both a Pass amp (stereo - think it is an Aleph) and a Pass preamp that he recently put a digital remote control volume into.
What are your ACA amps rated power-wise? |
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Stephen - that would be plenty for me. Am listening to 20wpc with class-A tubes and my system has never sounded better. Like you, 99% of my listening is in the 68-74dB range (with an occasional foray into 'head-banger' territory).
From what I understand looking at the diystore, the input connection must be XLR to bridge the amp for 15wpc as a monoblock. As my pre-out is only single-ended RCA, would a simple RCA-XLR adapter accomplish this? |
It's an interesting project that I thought about doing myself. I also thought about building a Tape Project preamp for my RTR. Haven't gotten to it yet.
Here's a youtube vid of someone who built the little Pass Labs amp. https://www.youtube.com/watch?v=DpzTZ1oPYt0 I think it's great that Nelson Pass takes the time to help the DIY'er like he does. |
I've done a few. They sound pretty good depending on what components you chose to use but I personally didn't keep them very long. I probably should have for an office setup though. I ran them as monoblocks.
https://i.ibb.co/PjFBqbx/IMG-9848.jpg https://i.ibb.co/Hh8cv7D/IMG-9627.jpg |
Puma Cat, can you describe the sound difference between Bridged and Parallel?
Also, you mention premium parts - what are those parts? Thanks, Steve |
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As for the premium parts, check the ACA Premium parts build thread at DIYAudio. I just used the parts that TungstenAudio did in his thread (at the beginning of the thread). |
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