A trio of 6H30 vacuum tubes form the core of a simple and clear signal path. A classic Audio Research design, the PH9 revels in the vibrance and vitality with which tube gear excels, yet neutrally portrays the subtlest shadings in cartridge and tone-arm selections with transparency.

Five impedance settings
Five different impedance settings allow for cartridge loading, which can be changed on the fly with the included metal remote. Cartridge impedance, tube hours, auto shutdown, and other features are included in the menu system.
 
 

 
Since 1970, High Definition has been more than our trademark; it has been our guiding principle for all products. PH9 continues this passion and philosophy, offering the listener stunning playback, great value, and unparalleled long-term support.


TECHNICAL SPECIFICATIONS
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±.2 dB of RIAA, 5 Hz to 20kHz; 1 dB points below 0.3Hz and above 80 kHz | 
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Less than .015% at 3V RMS 1kHz output | 
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Selectable loads: 47k, 1000, 500, 200, 100 Ohms | 
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200 ohms. Recommended load 50k-100k Ohms and 100 pF. (10k Ohms minimum and 2000 pF maximum). | 
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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) | 
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6 Push Buttons:   Power, Menu, Option, Enter, Input, Mute | 
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Electronically regulated low and high voltage supplies.   Automatic 2 minute warm-up/brown-out mute. Line regulation better than .01% | 
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(3)-6H30P dual triodes, plus (1 each) 6550WE and 6H30P in power supply | 
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100-125VAC 60Hz (200-250VAC 50/60Hz) 120 watts maximum. Standby: 2 watts | 
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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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