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RE: OPA2134 vs OPA2604 vs OPA2107

Posted by jk on December 28, 2016 at 18:21:04:
Hi, great question. I am using Alon brand stereo subs. Alon, now called Nola, is owned by Carl Marchisoto the engineer who designed the Dahlquist DQLP1. Yes, oh boy yes, the sound from the subs changes with different options amps.

I recently spoke to carl about increasing the gain on the active low pass side, turns out to be just a resistor change. I mentioned to him I was running an accurus amp for the subs. He remembered that I own an Aragon 4004 too. He advised me to put the 4004 in. Wow, he was right. It makes a big improvement.

So long way of answering, yes it makes a noticeable improvement.