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 Hafler Series 9300 Power Amplifier $425

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Power Rating:

150 watts per channel @8 Ω,

225 watts per channel @ 4Ω,

450 watts bridged @ 8Ω

Distortion: 0.07% THD 20-20Hz, Typically 0.005% THD 1kHz, at rated power into 8Ω

Damping Factor: 800 (to 1kHz); 80 (to 20kHz); 20 (to 100kHz) into 8Ω
 

Input Sensitivity Range: 1.22 Vrms for 150W into 8Ω, 1.06Vrms for 225W into 4Ω
 

Dimensions: 19"W x 12-1/2"D x 3-1/2"H (excluding feet)
Weight: 36 lbs. (16.4kg)

Power Consumption: Quiescent, 84 VA; at rated power, 612 VA (150W into 8Ω, both channels driven)

Measured with both channels driven

20 Hz to 20,000 Hz with less than .1% THD

Power Rating

250 watts per channel @ 8 Ω

375 watts per channel @ 4 Ω

750 watts bridged @ 8 Ω

Total Harmonic Distortion <0.2% (20Hz-20kHz)

Signal-to-Noise Ratio 100 dB below rated output

Un-weighted Full Power Bandwidth 0.15Hz to 300kHz (+0/-3dB) Slew Rate 150 V/µs

Common Mode Rejection 75dB at 1 kHz

Input Impedance 47k ohms per phase

balanced Gain +29 dB

Input Sensitivity 800mV (@ 8 ohms) per phase balanced 690mV (@ 4 ohms) per phase balanced

Damping Factor 1000 (to 1 kHz); 100 (to 20 kHz); 20 (to 100 kHz)

Power Consumption 160W / 2.0A @ 120VAC (idle power) 370W / 4.2A @ 120VAC (1/8 power - 8 ohms) 840W /8.8A @ 120VAC (max. power - 8 ohms)

Dimensions H x W x D 19" (48.3 cm) x 12 1/2" (31.75 cm) x 5 1/4" (13.3 cm) Net Weight 50 lbs. (22.7 kg)