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Manley 300B Neo Classic Pre-amplifier

Manley combined the historic 300B with another classic, the large octal based 6SL7GT, for the input stage- all triodes running in pure Class A operation. To complement this ‘retro’ feel, they implemented vacuum tube rectification and regulation in the power supply along with plenty of capacity.

₹602,100.00

SHIPPING

-Ships In India
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RETURNS

We do not accept returns for this product.


WARRANTY

Manufacturer’s Warranty

We combine the historic 300B with another classic, the large octal based 6SL7GT, for the input stage- all triodes running in pure Class A operation. To complement this ‘retro’ feel, we implemented vacuum tube rectification and regulation in the power supply along with plenty of capacity. We also developed an additional (and innovative) ripple rejection circuit to filter out power supply noise making this an incredibly low-noise preamplifier- especially critical for headphone users.

Complementing this lovely and rich sounding line-driver is the ALPS audiophile volume control, gold plated RCA connectors, high purity silver wire, mil-spec printed circuit boards with extra thick copper and plating, and custom designed output transformers which we wind right here in our own magnetics department. It all adds up…

  • 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 6SL7 Sovtek
  • Rectifier Tubes: 2 x 5AR4 Ruby
  • Regulator Tubes: 2 x OD3
  • 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
  • Mains Fuse Value: 3A SLO-BLO (100, 120VAC operation), 1.5A SLO-BLO (220-240VAC operation)
  • Dimensions: W=19″ x L=13″
  • Top Deck Height: 4″
  • Transformer Height: 3 1/2″
  • Suggested shelf height minimum: 10″ (depending on height of 300B tube)







    • DESCRIPTION
    • SPECIFICATIONS
    • CUSTOMER REVIEWS
    • ASK A QUERY
    DESCRIPTION

    We combine the historic 300B with another classic, the large octal based 6SL7GT, for the input stage- all triodes running in pure Class A operation. To complement this ‘retro’ feel, we implemented vacuum tube rectification and regulation in the power supply along with plenty of capacity. We also developed an additional (and innovative) ripple rejection circuit to filter out power supply noise making this an incredibly low-noise preamplifier- especially critical for headphone users.

    Complementing this lovely and rich sounding line-driver is the ALPS audiophile volume control, gold plated RCA connectors, high purity silver wire, mil-spec printed circuit boards with extra thick copper and plating, and custom designed output transformers which we wind right here in our own magnetics department. It all adds up…

    READ MORE
    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 6SL7 Sovtek
    • Rectifier Tubes: 2 x 5AR4 Ruby
    • Regulator Tubes: 2 x OD3
    • 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
    • Mains Fuse Value: 3A SLO-BLO (100, 120VAC operation), 1.5A SLO-BLO (220-240VAC operation)
    • Dimensions: W=19″ x L=13″
    • Top Deck Height: 4″
    • Transformer Height: 3 1/2″
    • Suggested shelf height minimum: 10″ (depending on height of 300B tube)
    READ MORE
    CUSTOMER REVIEWS
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    READ MORE
    ASK A QUERY







      ABOUT MANLEY LABS

      Since the late 1980s Manley products have evolved from purist audiophile vacuum tube designs expanding into professional audio and digital converter systems. Manley’s legacy of design philosophies has been proven over years of real-world experience, using high quality modern components, many of which are fabricated in-house.

      ABOUT MANLEY LABS

      Since the late 1980s Manley products have evolved from purist audiophile vacuum tube designs expanding into professional audio and digital converter systems. Manley’s legacy of design philosophies has been proven over years of real-world experience, using high quality modern components, many of which are fabricated in-house.

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