It's not clear whether you describe your experience or speculate about future events ?
ACA is , as any proper A class amp , hottest when mute
at least in usual exploitation scenarios
Sorry,
it was half a joke and half speculation about a future test i would like to do.
Walter
No need to worry, ACA will take the 4 Ohms load without a grunt, especially if you have enough heatsinking to do the "2k2 mod" (increasing the I_bias).
Yes, drive it hard and with difficult load and your Amp becomes less hot 😀
That's class A...
Walter😉
Thank you gentlemen !
I will hook up my 4 ohms speakers this weekend.
This ACA (+mod 2k2) is a wonderfull amp ! Thanks Mr Pass.
Walter
I will hook up my 4 ohms speakers this weekend.
This ACA (+mod 2k2) is a wonderfull amp ! Thanks Mr Pass.
Walter
Hi,
i have a regular ACA kit (2 monoblocks in grey). I have done the documented installation including the modification (adding one resistor).
My ACA runs with Lowther DX3, to me it does not feel very hot even after a long time open.
I am eager to try it with my other speakers (4 ohms) this weekend.
Walter
If you read the illustrated guide to building the ACA by 6L6, it now shows how to hook up the 2K2 resistor on each amp board. It is between the board stuffing and the wiring up part of the demonstrated build. Look for a resistor being laid on top the board between a transistor leg and another resistor.
hello
My ACA works perfectly 🙂. for the moment I am using my worst music source, direct output of a laptop and the volume is perfectly adequate. my speakers are "tony gee LBS" I can also mount the volume loud enough to shout my wife 🙂 😉. my next project will definitely DCB1.crash test drivers on picture 😉 .
By cons I'm worried my ACA is not very hot! I think less than 25 ° c .. it was most hotter when setting ...
I am worried!
My ACA works perfectly 🙂. for the moment I am using my worst music source, direct output of a laptop and the volume is perfectly adequate. my speakers are "tony gee LBS" I can also mount the volume loud enough to shout my wife 🙂 😉. my next project will definitely DCB1.crash test drivers on picture 😉 .
By cons I'm worried my ACA is not very hot! I think less than 25 ° c .. it was most hotter when setting ...
I am worried!
Attachments
i have a "ploc" when i turnoff and a little "whale song " 😀 when i turn-on ,in my speaker .
can anything be done?
can anything be done?
each brick having own switch , in amp case ?
you didn't mixed something ?
each pcb must have own dedicated brick
you didn't mixed something ?
each pcb must have own dedicated brick