Asking $350. Martin Logan Grotto Subwoofer in nice condition. I just sold my Source Speakers so this goes to another ML fan. This is the same driver and controls as the $2,400 Martin Logan triple-driver Descent. This is not the 'i' version; some feel the original Grotto non-i version was superior build and higher quality sound. Tight musical sub with a small form factor and ideal for blending with electrostatic panels of a musical cone speaker like Merlin TSM and VSM. Superior for a modest room (14' X 18' X 8' living room shook the house). Has abbreviated PEQ @25 Hz to raise or lower that frequency (e.g., electronica, dub, hip-hop and movies of course).
It is in nice condition with no major flaws except a small dent here and there that is only visible on close inspection. A '7' rating is conservative as always in my ads. Pictures should be hi-rez; like all my ads.
All offers always considered. Local Pickup in Philly Burbs (West Chester 19380) or City-Line Bala Cynwyd (19096).
I could consider shipping to truly interested parties who are prepared to make a firm offer to buy--to whom I will provide an exact shipping quote but highly prefer a local pickup for now. All offers considered.
Language below borrowed from ML web page. See some reviews here:
http://www.audioreview.com/product/speakers/subwoofers/martin-logan/grotto.htmlThe world's most affordable servo-controlled subwoofer, Grotto proves that a precise, compact subwoofer can have the heart of a beast.
Grotto combines explosive bass power with servo-controlled accuracy and precision in a surprisingly compact cabinet at a perhaps even more surprisingly affordable price. At its core are the same high-resolution 10-inch aluminum-cone driver used in our flagship Descent subwoofer and a proprietary advanced-design amplifier. Easy to set up and sporting an attractive contemporary look, Grotto integrates comfortably into any room and system.
Frequency Response 22–150 Hz ±3dB; Anechoic through LFE effects
input Impedance RCA Line Level In: 20,000 Ohms. Compatible with 4, 6, or 8 Ohm rated amplifiers.
Low Frequency Transducer 10" (25.4cm) high excursion, aluminum element woofer with extended throw drive assembly, non-resonance asymmetrical chamber format
Amplifier 250 watts rms (350 watts peak)
Audio Controls 25Hz Level Control: ±12dB
Power: Auto/On/Standby High Pass Filter Frequency 70 Hz
Low Pass Filter Frequency 30, 35, 45, 55, 65, 80 Hz
Inputs RCA line level; RCA LFE; speaker level
Weight 40 lbs. (18.2 kg)
Dimensions 15.4" × 15" × 12.9" (39.1cm × 38.1cm × 32.8cm)
