Oh sorry, I should clarify, I meant as a power amp for headphones, much less power needed. Thanks for the reply, I didn't know that this little amp could even power speakers. If so, I may just build a set, would be a first for me since I'm only a headphone listener.
Considering that the ACP+ PSU has 250mA for each channel, what exactly were you expecting? 😁😁😁
Given any speaker has higher inductance at the low end than a headphone, that is to be expected with lower damping factor and limited current output
I will try using the DAC as a volume control though, that sounds interesting. I thought I read that using digital volume control limited the dynamic range or something like that which is most of the reason I've never bothered with it even though my DAC has a volume knob and a preamp mode.
Yes, it absolutely does. Might affect SNR as well? I'm unsure on that part but digital volume control throws out the bits
Not a particularly big deal if you already are on a 32bit S-D as the real range is more of 24bit but I'm unsure if it cuts off from the real range when using digital volume control
It's not so much that the digital volume control is so good but rather the ALPS volume potentiometers are just ok and the audio quality is improved if you bypass it using digital volume control, that is if your dac is well built and has a quality power supply or even better replace it with a resistor step attenuator. Reading this thread, a step attenuator volume control is a significant upgrade. That's probably my next mod.
1% distortion looks way too high to me. How much bias is your amp running at? What is the voltage before the output cap?