Class D, "Control (Variable Gain)," Amplifier versus Class A/B Separates?


Hello, all!

I am currently running a quite old PS Audio GCC-100 in my chain. It is a variable gain, class-D solid state power amplifier with balanced stereo inputs (functionally a balanced integrated amplifier). I recently purchased and am quite enjoying a pair of KEF LS50 Meta loudspeakers, but have been hearing from numerous people that they may sound even better with Class-A or Class-A/B amplification. I am curious what benefits, if any, I might get from making a switch. I am currently considering selling the GCC-100 and replacing it with a Schiit Kara preamplifier combined with a pair of Outlaw 2220 monoblocks. Any and all advice about what I might expect from such a swap would be greatly appreciated! And in case it matters, source is a Denafrips Ares II R-2R DAC playing lossless Apple Music.

-Ed

eddnog

I have the Schitt Kara. It's quite neutral and quiet. Having a passive mode is a big plus as I can use it as a remote volume control for pieces that don't have one. It's audio functionality is excellent.

However, there are two issues that are annoying. The remote has a very narrow range. You must point it directly at the hole. Even an inch or two away and it doesn't respond. 

The other is its sensitivity to static electricity. A slight touch and it will go into some strange mode and has to be power cycled. 

I have 5 Schiit products. I returned one. Their CS is terrible and it's nearly impossible to communicate with anyone besides AI. But their products are a great value and I haven't had any issues. 

@soix Under $2K for sure. Preferably closer to $1K for this little experiment. Who knows if anything can be achieved at all?

-Ed

I’d save up more $$$ to get something that’ll provide a substantial improvement and just stick with your amp in the meantime.  I assume you’re also using the amp as a preamp?

@soix yes, I’m currently using the GCC-100 in integrated amplifier fashion. The subwoofer is attached to the Aux outs on it as well.

-Ed