MartinLogan | Spire Specifications
Spire Specifications
Frequency Response: |
29–23,000 Hz ± 3dB |
Horizontal Dispersion: |
30 degrees |
Vertical Dispersion: |
44" (112cm) line source |
Sensitivity: |
91 dB/2.83 volts/meter |
Impedance: |
4 ohms, 0.8 at 20kHz |
Crossover Frequency: |
320 Hz |
Components: |
Custom-wound audio transformer, air core coils, polypropylene capacitors |
Woofer Type: |
10" (25.4cm) (per channel) cast basket, high excursion, aluminum cone with extended throw drive assembly, non-resonance asymmetrical chamber format |
Woofer Amp Power: |
200 watts/channel (4 ohms) |
Bass Control: |
±10dB at 35 Hz |
Other Control: |
Light intensity dimmer control |
Power Handling: |
250 watts per channel |
Signal Inputs: |
Custom bi-wire binding posts |
Weight: |
58 lbs./channel (26.3 kg) |
Dimensions (HxWxD): |
59" × 12.5" × 17.75" |
