MartinLogan | Grotto i Servo-Controlled Subwoofer | Stereo and Home Theater
Grotto i...
Compact and Accurate
A powerful 300 watt (900 watt peak) low-distortion, high-reliability amplifier gives Grotto i extremely articulate bass without need of exaggerated amplifier power ratings or transient-blurring ported or passive radiator enclosures common to many modern subwoofers. A proprietary servo system further ensures that output from Grotto i's 10-inch high-resolution aluminum cone woofer is dramatically free of distortion and provides a faithful replica of the audio input signal.
Frequency Response: |
22–120 Hz ±3dB; Anechoic through LFE effects input |
Low Pass Filter Frequencies: |
30, 35, 45, 55, 65, 80Hz |
High Pass Filter Frequency: |
70Hz |
Phase: |
0°, 90°, 180°, 270° |
25Hz Level Control: |
±10 dB |
Woofer Type: |
10" (25.4cm) high excursion, aluminum cone with extended throw drive assembly, sealed non-resonant asymmetrical chamber format |
Amplifier: |
300W (at less than 0.5% THD) 900W (peak) |
Inputs: |
Left/Right RCA Line Level, RCA LFE, Speaker Level |
Outputs: |
RCA Sub Out (all inputs summed), RCA Right/Left (with High Pass Filter) |
Input Impedance: |
20,000 Ohms |
Power Draw: |
Max: 250 Watts Idle: 15 Watts Standby: 10 Watts |
Weight: |
51 lbs. each (23.2 kg) |
Dimensions (HxWxD): |
18.6" × 15.2" × 13.8" (47.3 × 38.6 × 35 cm) |
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