Manley Steelhead Phono Preamplifier - superb tube phono preamplifier. Two MC inputs, one MM plus one line level. Local sale only.
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• Moving Magnet input impedance: 5-step user adjustable via fixed low-noise resistors; 25, 50, 100, 200 and 47K ohms
• Moving Coil input impedance: 5-step user adjustable via multi-tap autoformer; 25, 50, 100, 200 and 400 ohms
• Input Termination Capacitance: Front Panel Selectable in 10 picofarad steps from 10 to 1100 pF (1.1nF) (Residual input capacitance less than 40 pF)
• Gain: 4-step user adjustable, 50, 55, 60 and 65 dB active gain at 1 kHz referred to the FIXED output jack into a 10K ohm load. Additional gain available via the MC input's step-up autoformer. (See Owner's Manual for discussion)
• Deviation from RIAA curve: Less than +0.5 / -0.3 dB from 20Hz to 20kHz at any gain setting. Typically less than +/- 1 dB from 10Hz to 100kHz
• Inter-channel differential phase: Less than 4 degrees from 20 Hz to 20 kHz at any gain setting. Typically less than 2 degrees
• Inter-channel differential gain: Less than +/- 0.5 dB from 20 Hz to 20 kHz at any gain setting
• Dynamic Range: 101 dB @ 1 kHz, 1% THD measured with 200 ohm source, 47Kohm input, @ 55dB
• Gain 97 dB @ 1 kHz, 0.1% THD
• THD: 0.0042% at 1V output @1kHz
• Maximum LINE input level: +30.6dBu @ 1KHz for an output of +29.3dBu @ 0.07% THD; 26.5Vrms @ 1KHz for an output of 22.8Vrms @ 0.07% THD
• Maximum Output: +27dBm @ 1KHz with 3% THD into 100K ohm load
• Fixed Output impedance: 150 ohms. Minimum suggested load greater than 1500 ohms
• Variable Output impedance: 75 ohms. Minimum suggested load greater than 600 ohms
• MM Noise (S+N+D)/(N+D): 75dB (@ 65dB gain, variable output full open, 200 ohm source, 47K ohm input "A" weighted referred to 2.54 mV) rms @ 1 kHz)
• MC Noise (S+N+D)/(N+D): 71dB (@ 65dB gain, variable output full open, 100 ohm source, 100 ohm input "A" weighted referred to 0.5 mV rms @ 1 kHz and rated Input Z)
• Power consumption: 100 watts
• Outboard Power Supply: is factory set for original destination country's mains voltage
• Mains Voltage Frequency: 50Hz ~ 60Hz
• Vacuum tube compliment: 6922 SOVTEK Russian x 2 (gain) plus JAN NOS GE 7044 x 4 (output buffers)
• Dimensions: Steelhead 19" wide x 3.5" tall x 15.5" deep; PSU 13.5" wide x 4.5" tall x 11.375" deep

Your local dealer is the best resource for purchasing and support of Manley products. If there are no Manley dealers in your area, please contact us with your needs and interests and we'll see if we can help.