4
SPECIFICATIONS ___________________________________________________
This section describes the basic specifications of the PH 302 phono preamplifier at the time of printing.
Specifications are subject to change without notice or obligation.
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Circuit Type
Direct Coupled, Single-ended Class A
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Gain, MM Phono Section
38 dB, using triode vacuum tubes
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Gain, MC Phono Section
54 dB, using input transformers and triode vacuum tubes
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Noise and Hum
-78 dB below full output
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Input Impedance
MM 47 k ohm, MC 100 ohm
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Output Impedance
660 ohms
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Frequency Response
RIAA Curve + 0.5 dB, passive RIAA circuit design
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Power Supply Design
Fully regulated power supply with 1 ea - R-Core transformer
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Transformer(s)
200% Duty rating for long life and reserve energy
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Vacuum Tube Complement
2 ea - 6SL7 Head Amp
2 ea - 6SL7 RIAA EQ & Amp Gain Stage
1 ea - 5AR4 Vacuum Tube Rectifier
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Power Supply Capacitors
6 ea - 47 µFd @ 350 VDC capacitor
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Resistors 1%
Metal
Film
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Power Supply Capacitors
6 ea - 47 µFd @ 350 VDC capacitors
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AC Cord
3 Conductor, Detachable
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AC Power Requirements
100, 117 or 234 Volts @ 50/60 Hz, set by market
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Consumption 15
Watts
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Warm-Up Time
5 Minutes
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Break-In Time
100 hours of music playing time
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Finish
Black or silver anodized aluminum faceplate, semi gloss black steel chassis
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Weight
22 lbs. (10 kg.)
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Dimensions
4" H x 17" W x 13" D (~10 x 43 x 33 cm)
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