Subwoofer Reviews

Description: Powered, servo-controlled subwoofer using "BalancedForce Technology," in sealed enclosure. Drive-units: three 8" high-excursion aluminum-cone woofers with 1.5" push-pull voice-coils Frequency response: 20-150Hz, ±3dB. Crossover: low-pass filter: 30, 35, 45, 55, 65, 80Hz (switched, defeatable), 18dB/octave slope; high-pass filter: 40Hz, 70Hz (defeatable). Built-in amplifier: Signal-Sensing Auto on/off. 300W RMS (500W peak), class-D. Inputs: 2 line-level (RCA), 1 LFE (RCA), 1 high-level pair per channel (4 speaker terminals: bare wire, banana plugs, or spade lugs). Outputs: 1 pair line-level (RCA) for high-pass filter, 1 with no high-pass filter (for additional subwoofer). Rear-panel level controls: Phase (0 degrees, 90 degrees, 180 degrees, 270 degrees), Crossover (30, 35, 45, 55, 65, 80Hz), 25Hz (±12dB), Gain, Power (On/Off/Standby). Also included: AC cord, Energy Transfer Coupler (ETC) spikes.
Dimensions: 16.6" (422mm) W by 16.25" (413mm) H by 16.15" (410mm) D. Weight: 65 lbs (29.5kg).
Finishes: Piano Gloss, Granite black with aluminum trim (brushed black or clear anodized).
Serial number of unit reviewed: GEOJ039.
Price: $1795. Approximate number of dealers: 300. Warranty: 3 years, nontransferable.
Manufacturer: MartinLogan, Ltd., 2101 Delaware Street, Lawrence, KS 66046. Tel: (785) 749-0133. Fax: (785) 749-5320. Web: www.martinlogan.com.