The Steelhead Preamplifier AWARDS: The Steelhead was a Runner-Up for Stereophile Magazine's 2002 Amplification Component category The Steelhead also placed as one of only eight runners-up in the master 2002 Product of the Year listing! "The Best of the Best!" The Manley Steelhead also placed as a runner-up in the 2003 Amplification Component category, and was one of the Runners-Up in the 2003 Product of the Year master category! Yeah and Yeah! 2005 Stereophile Class A Recommended Component! Features And Specifications of Manley Steelhead Preamplifier: Vacuum tube compliment: 6922 SOVTEK Russian x 2 (gain) plus 5687 (was 7044) x 4 (output buffers) Fuse type and ratings @ 117 VAC operation: 1.5 Amp 3AG slow-blow mains fuse 0.5 Amp 3AG slow-blow logic fuse Fuse type and ratings @ 230 VAC operation: 0.75 Amp 3AG slow-blow mains fuse 0.25 Amp 3AG slow-blow logic fuse Moving Magnet input impedance: 5-step user adjustable via fixed low-noise resistors. 25, 50, 100, 200 and 47000 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 10Kohm 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 20 Hz to 20 kHz at any gain setting. Typically less than +/- 1 dB from 10 Hz to 100 kHz 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 100Kohm 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. Read the Owner's Manual