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Martin Logan CLSIIz - adding more bass?

I have Martin Logan CLSIIz speakers, VTL-MB 125 mono block amps (RCA inputs only)and a Sony CDS-X7ESD CDP that is connected directly to my amps. I am thinking about adding a subwoofer and was wondering if anybody has any advice? My room is quite large (open floor plan) with a high slope ceiling in one part-like a loft. I don't know the volume but dimensions are about about 20 x 30ft with the highest part of the ceiling about 18ft. My budget is around $1000-1500USD and I only buy used! Thanks!
alexl9ba7
sedond
1,387 posts
 
re: x-over, definitely go active. i don't think you'll touch the quality of db systems or marchand electronics at anywhere near their prices. use at least a 24db/octave slope w/electrostatics.
iceravendbd3
43 posts
 
Hi Alex1@astound.com - Please post your progress in your checking, I'm curious for your results. Sorry our responses might have caused you much travel & again more time for research. Warm Regards.
rmsr
22 posts
 
Spend the money on larger amplifiers - you'll get far more satisfaction for the expenditure. I have the same speaker and recommend a minimun of 225 watts (I'm using the VTL 450's). Also have the REL Storm III and have been very dissatisfied with its performance with the CLS.
mejames
986 posts
 
hello I agree with Mig007 the kenergetics 800 system was invented by Tony DiChiro specifically for his pair of his Martin Logan CLS speakers. The key is the woofer size anything bigger than 10in isn't quick enough to match the eloctrostatic panels quickness but requires about 10 woofers to accomplish enough bass output. The crossover is very transparent also. A good high current at low impedance amplifier is required a Levinson 23.5 works really well.
raider
11 posts
 
You might consider a pair of Entec subs as well. The LF20s were originally over $6K but might be had in your budget. Check here at Audiogon.

Alternatively, the Celestion System 6000 gave great sound with my CLS, but doesn't have the ultimate volume of the the Entecs.
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