HUGE Spacious Surrounds - The


Hello "A" Team,

Has anyone tried the 901 direct/reflecting design as surrounds with or without a dedicated surround sub? 901's can be hung upside down by their feet and handle 450 watts.

I can extend the bottom end by adding a REL Storm II to the surrounds if required.

The reason for inquiring: My current in-ceiling Klipsch reference coaxials have allot of competition. I have a much larger center (pair of RF-7's connected in mono) and large, powered fronts. My main system has a SVS Ultra 13 with a Proceed AVP2 +6/AMP 5.

Thoughts, ideas and thanks!



soundsbeyondspecs
Hi Eldartford,

The Behringer DEQ 2496 is one I am considering. I have a Fostex stereo recording EQ that may work. Were you able to enhance the 901's treble and bass responces better? Especially, adding that sparkle mentioned by Knownothing? I can add a nice sub (REL Storm II) just for the surrounds and cross it over just above the SVS Ultra 13 through my AVP2 +6 processor, if needed.
Soundsbeyondspecs....Most equalizers would not have the range necessary to make the 901s flat. I use the parametric function of the DEQ 2496 to insert a broad and deep multioctave cut through the middle octaves. Then I run the automatic room EQ (which is added to the parametric eq) to maker things flat. I have found it best to roll off the lows below about 30 Hz...those little drivers can do just so mugh. The highs don't quite make it to 20KHz, but neither do my ears.

Note that my Bose 901s are in a huge swimming pool room with highly reflective surfaces all around. I make no gaurantees about how they will sound in a normal room.
Eldartford: I could connect only the 901 surrounds from the AVP's pre-outs to a Yamaha reciever with ARC. Then, route the pre-amp signal to the AMP 5 and to the 901's.

The ARC may flatten the 901's out. A EQ, analog SLM and calibration CD may help further manual accuracy by ear.

Hung by their feet from a 45 degree vaulted ceiling, the main 8 drivers should reflect directly downward throughout the listening area. They could definately sound good if the 901's components have the inherent potential for excellent surround sound qualities. Given that I believe 901's probably have different sound qualities within reach using better equalizing/calibration equipment than the stock EQ. Properly shaping the sound with the system and room is the trick.

Knownothing: I believe 20Hz has three 56 foot wavelength impulses per second!

http://www.mcsquared.com/wavelength.htm
Yes, but 20kHz has a wavelength of only 0.0565 ft., and most people have a very difficult time "hearing" this frequency.

But most people who can hear at all, can "hear" 20Hz sound waves. Although they can probably "feel" sound at this low frequency as much as "hear" it.