Help! Best amp for Rockport Aviors?


I recently purchased a pair of Rockport Aviors to replace my Dynaudio C2s. My system comprises of a Berkeley Reference DAC, Spectral DMC-30SS preamp, and Spectral DMA-260 stereo amp. My intial impression was disappointing - "hot" treble and a lack of low end slam. I assumed that my amp didn't have enough current to drive the Aviors properly so I auditioned the Spectral DMA-400 RS monos with the Aviors and that combo still didn't resonate in the way I first heard the Aviors (kicking myself for not noting the system). My current theory is that the Spectral gear (as much as I love it) isn't a good match for the Rockports; therefore, I have a bit of a quandary - ditch my Spectral system or the Aviors.

I know that Andrew uses a Gryphon stack to voice his speakers. Correct me if I'm wrong, but I don't kmow of a USA Gryphon dealer and wouldn't purchase a Gryphon component without hearing it in person first.

So cut to the chase: Avior owners out there - what do you drive them with that results in the "softer" treble and bass slam that I know these speakers are capable of. My current guess is to audition Pass Labs.
jason_john_howes
Also holy **** these speakers have amazing bass response! I guess I was starving them of breathing room...

J
By the way, the best placement I've found for the Aviors is:

- 12" from the back wall
- 8 feet between the speakers (measured from the inside of each enclosure ([]-----8 feet-----[] )
-17 degree angle in towards the listening position
- >= 10' listening position from the front of the speakers

Obviously, your room may disagree, but I hope this helps as a starting point from which you can experiment.

J
Also, I forgot to mention that my listening room is 12' (wide) by 18' (deep).

Hope this helps Rockport owners out there. I'll report about my amp impression soon...

J
HI Jason,

You are welcome and glad that you have got your Aviors positioned more optimally in your room. Assuming that the recordings that you are using that have the "hot treble" are not recorded that way, then I'd suggest trying the following:

Staying with your current Spectral amp, adjust the speaker positioning in very small increments. Start with adjusting toe in perhaps a half an inch (either more toe in or less toe in). And then listen with to see which is better - where you have them now or with slightly more or less toe in. These "micro" adjustments will allow to really dial in the speaker with the room. If after trying this, you still hear a "hot" treble on recordings that you are certain are not recorded that way, then play with the other amps as well and see how they sound.
Wait, you have these large, rear-ported speakers 12 inches from the rear wall?  Is that right?  Personally with the size of your room I'd have them at least two feet into the room measured from the rear of the speakers, and given spacing between the drivers I'd also experiment sitting more than 10 feet from the speakers to see if it gives the drivers more of a chance to become more coherent.  Best of luck.