Specifications – Manley Neo-Classic 300B Preamplifier 2002 - 2008 User Manual

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SPECIFICATIONS

Inputs: 5 stereo pair unbalanced RCA jacks

Outputs: 2 stereo pairs MAIN out same as SUB out unbalanced RCA jacks

RECORD output: 1 stereo pair pre-volume control unbalanced RCA jacks

HEADPHONE Outs: 2 front panel 1/4" headphone jacks

Optimized headphone impedance switching: 30-400 ohms to 300-4000 ohms

MUTE: Selecting HEADPHONE operation mutes LlNE outputs

Output Vacuum Tubes: 2 x 300B Electro-Harmonix

Input Tubes: 2 x 6SL7GT Electro-Harmonix

Rectifier Tubes: 2 x 5U4GBEH Electro-Harmonix or 5AR4 China
(Do NOT use the Sovtek 5AR4!)

Regulator Tubes: 2 x OD3 NOS JAN USA

Gain: factory set at 12 dB at max Volume

Internal Variable Feedback: 8.5 dB of global NFB is used @ 12 dB of gain,
adjustable trim -1.7dB to +1dB

Noise Floor: typically -70 dB (1 Hz - 100 KHz)

S/N Ratio: typically 105 dB (A WGT, 20 Hz - 20 KHz)

Frequency Response: 5 Hz to 50 KHz ±1dB

Channel-to-Channel Separation (L to R): @1KHz 48 dB; @10KHz 35 dB; @20KHz 34 dB

Channel-to-Channel Separation (R to L): @1KHz 50 dB; @10KHz 40 dB; @20KHz 37 dB

THD: 0.08 % @ 1KHz at 1V rms out

Distortion THD+N: -80 dB (.01 %) zero "crossover" distortion, mostly 2nd harmonic

Input Sensitivity: 250mV (-9.8dBu) yields 1V out

Input Impedance: 100 Kohm Noble volume control

Maximum Input Level: 5.5dBu or 1.459 Vrms @ 1KHz, volume control at maximum

Output Impedance (LINE STAGE): 100 ohms

Maximum Output Level: 17.2dBu or 5.636 Vrms @ 1KHz, volume control at maximum

Output Power (100 ohm Headphones): 1W (10 V RMS) (28 V P-P)

Output Power (600 ohm Headphones): 1W( 25 V RMS) (70 V P-P)

Power Consumption: 170 Watts (1.4 A @ 120VAC)

Operating Mains Voltage: Factory set for 100V, 120V or 220-240VAC operation for
original destination country's mains voltage.

Operating Mains Voltage: changeable with power transformer re-wiring and fuse value change.

Mains Voltage Frequency: 50~ 60Hz

Dimensions: W=19". L=13". H=3 1/2"

Shipping Weight: 28 Ibs.