Low Pass Filter Frequencies: 30, 35, 45, 55, 65, 80Hz
High Pass Filter Frequencies:Bypass, 40Hz, 70Hz
Woofer Type: Three 8" (20.3cm) high excursion, aluminum cone with extended throw drive assembly, sealed non-resonant asymmetrical chamber format
Amplifier: 350W (at less than 0.5% THD) 900W (peak)
Inputs:Left/Right RCA Line Level, RCA LFE,
Outputs:RCA Sub Out (all inputs summed), RCA Right/Left (with High Pass Filter)
Input Impedance: 20,000 Ohms
Power Draw: Max: 300 Watts
Idle: 15 Watts
Standby: 10 Watts
Weight: 70 lbs. each (31.8 kg)
Dimensions (HxWxD): 17.9" × 17.1" × 16.5" (45.4 × 43.5 × 41.8 cm)
Depth i deploys the full array of MartinLogan's advanced subwoofer technologies to achieve deep, rich, satisfying bass while preserving electrostatic-like accuracy and detail. Its TriLinear BalancedForce alignment, advanced low-distortion switching amplifier, and sophisticated triple-servo control systems extract the very best possible performance from Depth i's high-resolution 8-inch aluminum-cone drivers.
Depth i provides much of the performance of our flagship Descent i subwoofer from a cabinet 40% smaller. It blends easily into any high-performance stereo music or multi-channel home theater system. In fact, with its easily accessible top-mounted controls and separately configurable LFE and two-channel inputs, Depth i performance can be independently optimized for home-theater and stereo operation in the same system. Rigid, Low-Mass Aluminum-Cone Diaphragms.
By eliminating cone flexure, even at long voice-coil excursions, low-mass yet extremely rigid aluminum diaphragms help our advanced-technology bass drivers achieve the very low distortion necessary for proper blending with MartinLogan electrostatic speakers.
By operating three drivers in parallel, Depth i benefits from the low distortion and optimal control of their 8-inch diaphragms while achieving the displacement and acoustical output of a 15-inch drive unit. And because the thermal load is distributed over three voice coils instead of concentrated in one, the system is less influenced by to temperature-induced compression.
Driver Alignment Conventional subwoofer enclosures vibrate in reaction to driver activity, creating a secondary and highly colored sound source. In extreme cases, the cabinet may even on the floor. The typical expedient of adding mass can make the problem less obvious, but it doesn't really make it go away. Resonant bass smear is inevitable unless cabinet vibration is drastically attenuated. MartinLogan's BalancedForce design places multiple identical drivers in exact opposition to one another, so that their forces on the cabinet almost perfectly cancel.