It is apparent that conventional class AB receivers are too inefficient to be used with the Neo 11 channels.
They get hotter, nosier fan cooling, require more space around and with weak power supplies that cannot keep up. For instance a claimed 150W receiver effectively becomes 75watts.
Heat reduces component life or Mean-Time-Between-Failure (MTBF). The room requires extra cooling. Then you always worry about shutting it off as the beast gets so darn hot.
So what are the solutions? Pioneer class-D receivers and powered speakers
Not surprisingly in testing of the Pioneer against competing receivers, the Pioneers sounds louder with less strain.
At the moment, the main limitation is the Pioneer SC-65-67-68 DSP cannot generate height and width channels to the pre-outs simultaneously
, as do the new Onkyo 3010 and 5010. Someone posted that Pioneer may upgrade the firmware to allow it. The SC-65 would then
rate an outstanding best buy. Pioneer also includes combined Thx processing which several members indicate a preference:
There are many excellent powered/active speakers choices from the studio world.
Most are bi-amped internally and accept unbalanced, XLR and 1/4 jack.
Note: I've updated this post to depict the small Sealed Box
speakers the experts at SRS selected. When using 6+ speakers up front, you don't want more quantity of bass. You want less but more tuneful and articulate. I plugged my ports up on my FW speakers to increase the bass articulation. I did not
follow the THX advice to set the speakers small (and filter out the "too much bass" which ported enclosures are known for.)
In summary the higher the count of ported speakers, the more ill-defined bass and skewed spectral-balance become.Edited by HiFiFun - 10/9/12 at 8:30pm