Thread: Dual Mono AmpCamp Amps by Nelson

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!


(apologies for the cheesy iPhone 6S pic...I'll fix that later)

Originally Posted by Mikado463

cute little devils ...........

You'd be kinda flabbergasted how good they sound, Dave.

Originally Posted by Duke97

Hi Puma Cat, what "Preimum Parts" did you add for $35? Also, what is the efficiency of speakers you are using with these amps?

Thanks,
Duke

Hi Duke,
The premium parts were specified by a very experienced DIY Audio builder (and I think a professional EE) in the Pass Labs forum. DIYAudio.

They were a swap for the original Elna caps to Nichicon aluminum organic polymer caps, and subsituting a 4700 uF Nichicon Gold Tune cap for C1 in place of a 3300 Elna electroylic and also some resistor value changes. Also the new R12 was bypassed with a silver mica cap to smooth out the high end. Parts for each amp cost about $17. If you want a detailed list and rationale, just PM me and I will send a link to the ACA build with premium parts.

Originally Posted by Ritmo

Stephen - Looks like a fun project at a very reasonable cost resulting in pure musical enjoyment => priceless.

Thanks, Mike! Yeah, it was a fun project. The basic amp sounds very good, but these really sing quite impressively as bridged monoblocks. They are only held back by the laptop-style 24V 5A SMPS in terms of top end, air, and extension. But other than that, they are very impressive.