MartinLogan Depth 215 Subwoofer

The Depth 215 is the ultimate expression of MartinLogan bass technology. The culmination of our decades of experience in designing high-performance subwoofers. Depth subwoofers are meticulously engineered to deliver powerful bass as cleanly as possible, making them an ideal choice for both dedicated two-channel systems, home theater, or anything in between. Depth 215’s force-canceling dual 15” woofer layout all but eliminates performance-robbing cabinet resonances, allowing the custom Carbon Aerocore woofers to deliver pure bass energy without coloration. The system is backed by dual high-power, ultra precise amplifiers controlled by a class leading 64-bit Vojtko DSP engine. Every aspect has been painstakingly designed for maximum dynamic output capability, vanishingly low distortion, and exceptional accuracy.

Digital Signal Processor	Ultra High-Resolution 500MHz Vojtko DSP Engine with 64bit processing
Frequency Response	18–120 Hz ±3 dB (Anechoic via LFE input)
Low Frequency Transducer	Dual Active 15" cast-aluminum basket, high excursion, Carbon Aerocore cone woofers in a BalancedForce configuration with under spider, voice coil, and pole piece venting, plus dual copper shorting rings.
Cabinet	Extensively braced and reinforced variable thickness (1-3") cabinet
Amplifier	Dual Reference Grade Class-D Amplifiers: 4,400W Dynamic Peak (2,200W RMS)
Controls (via Bluetooth)	Level: -40 to 12dB (Min-Max) Low-Pass Filter (Frequency): 35–120Hz (1° Increments) Low-Pass Filter (Order): Bypass, Third, Fourth Phase: 0–180° (1° Increments) Phase (Polarity): Normal, Inverted Preset Listening Modes: Movie, Music, Night 20–30Hz Level: ±10dB Anthem Room Correction (ARC Genesis): On, Off Tone Sweep (120-20Hz): On, Off, Pause (Frequency)
Inputs	Line Level: Left, Right LFE XLR: Left, Right or LFE (Right in) Speaker Level: Left and Right (Requires Banana Plugs)
Finish	Gloss Black
Weight	173lbs (78.5kg)
Dimensions (HxWxD)	22.5" (57.2cm) x 22.8" (58cm) x 23.4" (59.5cm)