Audio Research Foundation PH9 phone Stage


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Etiketler: Audio Research Foundation PH9 phone Stage

FREQUENCY RESPONSE
±.2 dB of RIAA, 5 Hz to 20kHz; 1 dB points below 0.3Hz and above 80 kHz.

DISTORTION
Less than .015% at 3V RMS 1kHz output.

GAIN
55 dB at 1 kHz

INPUT IMPEDANCE
Selectable loads: 47k, 1000, 500, 200, 100 Ohms.

OUTPUT IMPEDANCE
200 ohms. Recommended load 50k-100k Ohms and 100 pF. (10k Ohms 
minimum and 2000 pF maximum).

OUTPUT POLARITY
Non-inverting.

MAXIMUM INPUT
80 mV RMS at 1kHz.

RATED OUTPUTS
0.5V RMS 10 Hz to 60 kHz, into 100K ohm load (maximum balanced output 
capability is 0.46V RMS at less than 0.5% THD at 1kHz).

CONTROLS
6 Push Buttons:  Power, Menu, Option, Enter, Input, Mute.

POWER SUPPLIES
Electronically regulated low and high voltage supplies.  Automatic 2 minute 
warm-up/brown-out mute.  Line regulation better than .01%.

NOISE
>77 dB, shorted inputs.

TUBE COMPLEMENT
(3)-6H30P dual triodes, plus (1 each) 6550WE and 6H30P in power supply.

POWER REQUIREMENTS
100-125VAC 60Hz (200-250VAC 50/60Hz) 120 watts maximum. Standby: 2 
watts.

DIMENSIONS
Width: 19” (48 cm) 
Height: 6.5” (13.7 cm) 
Depth: 13.7” (34.8 cm)
Handles extend 1.6” (4 cm) forward of the front panel.
Weight:   15.4 lbs. (7 kg) Net; 23.5 lbs. (10.7 kg) Shipping.

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