MA-1

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About Product

Recipient of The Absolute Sound's prestigious "Golden Ear Award" in 2000, the MA-1 enjoys an enviable reputation. Now the Mk. 3.3 series builds on proven technology. An improved output section and enhanced driver circuit contribute to superior low-level detail, smoother sound, wider bandwidth and AC power immunity. The rugged, non-magnetic chassis features classic looks with superior layout. Setup of the amplifier is simple with it's automatic biasing system. The controls and switches are ergonomic without sacrificing performance.

The MA-1 is extraordinary in every way. Not only is normal operation easy on the vacuum tubes, the effect of a tube failure on the unit is entirely inconsequential. Despite its extreme performance, the MA-1 is known for remarkable ease of setup, ease of operation, day-to-day consistency and of course extreme musicality.

Featuring our new custom wire, V-Cap Teflon coupling caps, custom resistors, and all the other extras for which we are known, the MA-1 shines as an example of why our amplifiers are the best amplifiers worldwide, regardless of cost.

Specifications

  • Output power

    140 watts per channel into 8 Ω load
    135 watts per channel into 4 Ω load

  • Impedance

    Input Impedance: 100 KΩ single-ended, 200 KΩ balanced
    Output Impedance: ~2.3 Ω (power method standard measurement)

  • Input

    2.8 V sensitivity
    RCA and XLR true balanced input

  • Tube complement

    ( per channel ) 14 x 6AS7G output tube
    5 x 6SN7 driver tube

  • Gain

    25 dB ( for 8 Ω )

  • Power Bandwidth

    2 Hz-200 KHz within ½ dB

  • Frequency response

    ( 1 watt, open loop ) 20 Hz squarewave Tilt; unmeasureable
    1Hz-300KHz within 3 dB

  • Output section risetime

    600 V/µs

  • Dimensions

    ( per chassis ) 18" deep x 17" wide x 8.5" tall ( 46 x 43 x 22 cm )

  • Weight

    ( per chassis, without tubes ) 36 lbs. ( 16.3 kg )

More Details
Company Website

MA-1

by

Recipient of The Absolute Sound's prestigious "Golden Ear Award" in 2000, the MA-1 enjoys an enviable reputation. Now the Mk. 3.3 series builds on proven technology. An improved output section and enhanced driver circuit contribute to superior low-level detail, smoother sound, wider bandwidth and AC power immunity. The rugged, non-magnetic chassis features classic looks with superior layout. Setup of the amplifier is simple with it's automatic biasing system. The controls and switches are ergonomic without sacrificing performance.

The MA-1 is extraordinary in every way. Not only is normal operation easy on the vacuum tubes, the effect of a tube failure on the unit is entirely inconsequential. Despite its extreme performance, the MA-1 is known for remarkable ease of setup, ease of operation, day-to-day consistency and of course extreme musicality.

Featuring our new custom wire, V-Cap Teflon coupling caps, custom resistors, and all the other extras for which we are known, the MA-1 shines as an example of why our amplifiers are the best amplifiers worldwide, regardless of cost.

Specifications

  • Output power

    140 watts per channel into 8 Ω load
    135 watts per channel into 4 Ω load

  • Impedance

    Input Impedance: 100 KΩ single-ended, 200 KΩ balanced
    Output Impedance: ~2.3 Ω (power method standard measurement)

  • Input

    2.8 V sensitivity
    RCA and XLR true balanced input

  • Tube complement

    ( per channel ) 14 x 6AS7G output tube
    5 x 6SN7 driver tube

  • Gain

    25 dB ( for 8 Ω )

  • Power Bandwidth

    2 Hz-200 KHz within ½ dB

  • Frequency response

    ( 1 watt, open loop ) 20 Hz squarewave Tilt; unmeasureable
    1Hz-300KHz within 3 dB

  • Output section risetime

    600 V/µs

  • Dimensions

    ( per chassis ) 18" deep x 17" wide x 8.5" tall ( 46 x 43 x 22 cm )

  • Weight

    ( per chassis, without tubes ) 36 lbs. ( 16.3 kg )

More Details
Company Website

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