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Coffman Labs, LLC www.coffmanlabs.com
Equalization: [measured into a 5 ohm load on MC input]
Passive RIAA, Paper-in-Oil (PIO) capacitors used for filters.
+0.5/- 0.2 dB 20Hz-20KHz (typical) 1Khz standard.
7 Hz rumble filter inherent in Phono Section
Frequency Response:
Line Stage: 20Hz–100KHZ +0.2/-0.5dB; 15Hz–150KHz + /-1.0dB
Headphone: -1dB at 15Hz; -2dB at 20KHz [Sennheiser 650]
Signal to Noise: (partially dependant on specific tubes used)
Phono: approximately 85+ dB
Line Stage: approximately 100+ dB
Power Supply filtering:
Separate external AC line filter not normally required
Line/Boost section supply hum down over 130 db
Phono section supply hum down over 150 db
Type: zero feedback multi-pole choke input
Heater Supply type: 7 pole filter. ~80 dB ripple reduction
Chassis Configuration:
Separate power supply on 4 foot cable.
110/120 or 220/240: Factory set per order
Purchase Options:
Moving Coil: Replaces one MM input with MC input.
Note: MC step-up is 15.5 dB, 0.3mV output
or higher recommended.
120/240 Voltage: Specify at the time of purchase.
Dimensions:
Amplifier: 12 ½" D x 7 ¾" H x 9 ½" W
Power Supply: 12 ½" D (with 5AR4) x 5 ½" H x 6 ½" W
Separate power supply on 4-foot cable
110/120 or 220/240: Factory set per order
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