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See below. The dark line is the linear pot. I tried connecting the terminals as in the attached sketch obtaining a quite good result but the volume would increase rotating the wiper CCW, and swapping GND and IN nothing changed! That's weird ... makes me think of a connection error ...may you...

Of course the pins measured are OUT and GND. Sorry.

The volume stays low for 22 steps. With the last two it reaches max, or at least a clipping level for the speaker I'm using for the test. I tried a cheap100k linear pot and got a decently gradual increase to max. Measuring the resistance between the wiper and ground ("IN" and "GND") pins of the...

Ehm ...the file ...

Thank you for responding. Here a sketch of the connection. Home it help. I even tried swapping the connections on the pot with no change.

Guys, I need your kine help: I'm trying to assemble my first ampli using the 3e AUDIO 260-2-29A modified to accept SE input signal. I'm an absolute beginner in this matter and I tried to get as much infos as I could. I tested the board with a cheap LDAC using my phone as a source and it sounded...

Wow! Unusually nice! May I know where you got that casing?

Cheers buddy. That finless plate seem not very efficient: would you suggest installing it to an external dissipator?

Anyone cares showing me where the TPA3255s are on the PCB? I see two OPA162A only ...

Looks like others have different opinion ... Buying a finished amp is not DIY. I want to challenge myself and try to realize something on my own ...thought that assembling a couple of boards and bunch of components isn't transcendental.

Thank you for your interesting explanation. Really appreciated. Though, if I want to couple the Sylph D200 to a turntable featuring a built-in pre amp, would it be possible to simply put an attenuator on the line in?

Hello guys. I'm a beginner trying to learn and maybe the question is silly...but ...am I wrong or there's no volume control? Anyone minds posting the wiring diagram?