Originally Posted by rnrgagne
Your take on the bass being weak is an odd thing though. I don't find that at all, and not only does the bass sound powerful but it's also extremely accurate. The tonality of bass instruments really comes through with these amps. I use a couple of channels to power my IB subs because of that actually.
I have A/B'ed the D-Sonic against a Sunfire 7400 both bi-amped and adjusted for Gain (the D-Sonic has more gain). I cannot tell you for certian which one is accurate but whenever there is a deep sustained or punchy bass note the Sunfire 7400 drives it home and keeps it going and the D-Sonic delivers the sound but without the same authority.
Perhaps this is some interaction with my Revel Salon's 3x8 inch woofers.
With the D-Sonic it sounds good, but I feel like, this song would sound better with my sub. With the Sunfire, it is holy crap, I can't believe I don't have my sub on. For example, Tracy Chapman's Space Between is a song with a lot of bass. You hear it with the D-Sonic, tight and fast. With the Sunfire, you feel it. The Revels go down into the 20's in a way that not many speakers do, so this may be the reason I notice the difference.
After I adjusted my Preamp (Onkyo 5507) to be in DAC direct mode, I was extremely pleased with the D-Sonics upper end. It was really sweet, very smooth dynamic and extended without be fatiguing. It sounded better on many albums, but again, who knows which one is more accurate.
I even tried bi-amping with the Sunfire driving the woofers and the D-Sonic driving the mid-bass, mid-range, and tweeter. But the gain difference made them sounds about the same as using the D-Sonic for both. I am not sure what to conclude from that.
I can see why people love these amps, but it just was not the best match for my Revels.