| Acoustical |
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32 Hz - 22 kHz
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Free Field
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32 Hz - 22 kHz at -3 dB
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40 Hz - 22 kHz at ±1 dB (2)
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Maximum SPL
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125 dB peak (120 dB @ 1 meter)
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Signal to Noise Ratio
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>100 dB (noise floor 20 dBA @ 1 meter)
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| Coverage |
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60° Horizontal x 60° vertical
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| Crossover |
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Optimized pole-zero filter combinations to complement transducer
response and to achieve acoustical transparency and flat phase
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| Transducers |
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Low Frequency
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8" Cone
Voice coil size: 2"
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High Frequency
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1" Dome tweeter
Voice coil size: 1"
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| Audio Input |
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Type
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10 k ohm impedance, electronically balanced
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Connector
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XLR female
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Nominal Input Level
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+4 dBu or -10 dBV, switchable
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| Amplifier |
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Type
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Two-channel omplementary MOSFET output stages
(class A at low to moderate levels; class AB at high levels)
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Output power
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225 Watts (low frequency, 150 watts; high frequency, 75 watts)
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THD, IM, TIM
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< 0.02%
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| AC Power |
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Connector
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3-pin IEC male receptacle
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Voltage selection
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Selector switch for 100, 120, 220, and 240 V AC; 50/60 Hz
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Operating Range
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90–260, 50/60 Hz
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Current draw:
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Idle current
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0.40 A rms (120 V AC); 0.23 A rms (220 V AC); 0.47 A rms (100 V AC)
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Maximum Long-Term Continuous Current (>10 sec)
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1.15 A rms (120 V AC); 0.62 A rms (220 V AC); 1.32 A rms (100 V AC)
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Burst Current (<1 sec) ( 3) |
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1.82 A rms (120 V AC); 0.99 A rms (220 V AC); 2.16 A rms (100 V AC)
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Ultimate Short-Term Peak Current
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5.60 A peak (120 V AC); 3.20 A peak (220 V AC); 6.05 A peak (100 V AC)
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| Notes |
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1. Subject to room loading. Specified for 8 feet actual distance between HD-1 cabinet and a single boundary surface.
2. One-third octave resolution.
3. Amplifier wattage rating based on the maximum unclipped burst sine-wave rms voltage that the amplifier will produce for at least 0.5 seconds into the nominal load impedance.
Unless otherwise specified, all acoustical measurements are performed at 1/2 meter from front baffle on tweeter axis. Acoustical decibels are specified re 20 uPa.
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