For Sale: Tested and working professional power amplifier, rack mountable. Made in the USA.
In mint or near mint shape- previously church owned and always kept in a rack behind a 2U front protective screen bezel. Tested and working perfectly, see test video below. No static or hum. Good volume controls and LED indicator lights. No issues.
Video taken during testing: https://youtu.be/wU51MuIn8Bw
Specs:
170 Watts bridged/mono @ 8Ω
75 Watts/channel @ 8Ω
85 Watts/channel @ 4Ω
Total Harmonic Distortion (THD) ......... <0.2% (20Hz-20kHz)
Signal-to-Noise .............100dB “A” Weighted
Full Power Bandwidth ...........0.15Hz to 300kHz (+0/–3dB)
Slew Rate ......... 100V/µs
CMRR (Common Mode Rejection Ratio) .............. 75dB at 1kHz Input
Impedance ........... 47kΩ per phase balanced
Gain ........... +14dB min. / +29dB max.
Input Sensitivity Range ............... 437mV to 2.4V (@ 8Ω) per phase balanced 330mV to 1.8V (@ 4Ω) per phase balanced
Damping Factor .............. 350 (to 1kHz) 150 (to 10kHz) 18 (to 100kHz)
Power Consumption.........60W / 500mA @ 120VAC (idle power) 230W / 1.9A @ 120VAC (1/8 power – 8Ω) 325W / 2.70A @ 120VAC (max. power – 8Ω)
Indicators ................. Power, Signal, Clipping, Thermal, Short
Dimensions.............. 19”W x 81 ⁄2”D x 31 ⁄2”H (2-rack spaces) (48.26cm x 12.59cm x 8.89cm)
Net Weight ..... 21.6 lbs. (9.98kg)
The audio power amplifier shall be solid state design employing 4 lateral power MOSFET output devices. It shall be constructed on a 16 gauge steel chassis utilizing convection cooling and be technician friendly using modular construction. Each channel shall be rated for a minimum of 75 watts into an 8 ohm load and 85 watts into a 4 ohm load with both channels driven. In bridged mono mode, the amplifier shall produce at least 170 watts into an 8 ohm load. A switch shall be provided for stereo or bridged mono operation and all power ratings shall be measured from 20Hz-20kHz with less than 0.2% THD. The amplifier’s back panel shall provide Balanced inputs via combination XLR and 1/4” phone jacks. The back shall also utilize gold-plated 5-way binding posts for output connectors and a switch to isolate or connect the signal ground to the chassis ground. The amplifier shall include a 3-wire grounded AC line cord and UI power transformer operating on 120V/60Hz AC mains. An optional transformer for 230V 50-60Hz operation shall be available. The amplifier’s front panel shall provide level controls with optional security covers. The front shall also incorporate a lighted main power switch and indicators for each amplifier channel. The indicators shall display signal present when 30mV of signal is detected, signal clipping when distortion rises above 1%, thermal protection should the heatsink temperature become excessive, and short circuit protection in case a problem on the speaker system arises. The amplifier shall fit standard 19” EIA rack mounting requirements utilizing 2- rack spaces. The dimensions shall be 19” Wide, 81 ⁄2” Deep, 31 ⁄2” High, and be finished in black with a net weight of 21.6 pounds. It shall be a Hafler P1500.
Additional high resolution photos may be available, contact for more information.
Email me your zipcode + city for a shipping quote- should be between $14.99 and $31.99 if you are in the United States. (Jan. 2022).
