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In Reply to: Re:Isolation and room treatments posted by Bob Lee (QSC) on July 15, 2004 at 09:10:25:
Hey Bob:"I'm really curious about the reports of microphonics in ordinary electronic components, though, and it would be good to determine whether these effects are real or imagined."
ME TOO. Tubes, turntables and CD sources I can understand, but some SS equipment I have a hard time buying into - especially amps that weigh 60 pounds...
By the way, I am currently running a Saxon CD700 CD player (analog out) into a Behringer DCX2496 and triamping a pair of DIY Focal Towers. Analog in just seems to sound better than digital in for some reason - I have yet to try 24/96 digital in though. Split off the CD700 output, I am also running a Behringer CX3400 (3-way active cross) in "low sum" mode to create a mono output for a sub.
I am using a Marantz receiver (SR6200) for 6.1 channel amplification (6 channels from the Behringer and the .1 to control the level of the output of the CX3400 for the sub.)
The extra crossover permits me to add delays to ALL of the front channels (in addition to the required individual driver delay times) to improve the transient response (and blending).
Here is the fun part.
I am using a QSC MX2000a in parallel mode to drive two Focal 12V726S ported woofer cabs rammed in the front corner of the room. Not HT subs by any means, the 9mm Xmax and reasonably 'fast' polyglass cones make for some rather tight "music subs". Combined with the damping factor of the MX2000a, I get quite a pleasant punch out of those boxes. The voice coils will bottom long before that amp is halfway to clipping. :o)
This is temporary though - as I plan to use the MX2000a to drive a single 15" Adire Audio Tumult. Ok. Maybe TWO Tumults.
Love that QSC amp. The fan is really quiet for such a monster. The smaller fans in the MX1500a's howl, so I returned the 1500 and got the 2000.
What is scary is how one can take a $1000 CAN HT receiver and "lower end" Behringer digital crossover and get such scary good sound. The imaging, though, is the selling point. Not even my integrated tube amp can make speakers vanish like the digital setup can.
It's no wonder pro-sound companies are going with digital front ends now.
Preston
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Follow Ups
- Re:Isolation and room treatments - PS 13:48:59 07/16/04 (0)
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