Magnat MA 400

Integrated amplifier with tube preamplifier and a great-sounding transistor power amplifier

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Data sheet

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The MA 400´s integrated phono preamplifier has been constructed with very low-noise operational amplifiers, hand-chosen components guarantee a deviation from the RIAA equalisation curve of less than 0.3 dB. It is also equipped with an elaborate subsonic filter with an 18 dB/octave slope and 16 Hz cut-off frequency. The preamplifier´s selected double triode tube (Type ECC88) is burned in for 60 hours before it is fitted.


With a "genuine" continuous performance of 40 watts per channel and the delivery of a total performance over 150 watts for short periods, this integrated amplifier is also suitable for demanding loudspeakers. Elaborate and separately stabilised supply voltages as well as generously dimensioned buffer capacitors (2 x 10,000μF for the power amplifier) ensure dynamics, low noise levels and outstanding channel separation for the individual amplifier sections.


Technical Data


Output power / Nominal

20 Hz – 20 kHz, THD < 1.0%

4 Ohm, 2 x 40 W

8 Ohm, 2 x 32 W


1 kHz, 4Ω: 2 x 150 W

Frequency response


8 Hz – 120 kHz (-3,0 dB)


20 Hz – 20 kHz (+/-0,2 dB)

hono: 20 Hz – 20 kHz (+/-0,3 dB)

hono Subsonic Filter: 16 Hz, 18 dB/Oct.

Input sensivity

CD/Tuner/Aux/Line/Tape: 550mV/10 kΩ

Power consumption

xaximal 150 W

Standby < 0,5 W

S/N ratio

CD/Tuner/Aux/Line/Tape: 95 dB

Phono MM: 80 dB

Dimensions (WxHxD)

430 x 91 x 287 mm

(330 mm incl. operational elements)


5.8 kg








  • Easy-to-read alphanumeric display
  • System remote control for all functions




  • Sturdy case with milled 5 mm thick aluminium front
  • Control elements made from solid machined aluminium



Amplifier and power supply

  • MM phono preamplifier with low-noise operational amplifiers
  • Wide-band high-performance power-amplifier chip
  • Tube preamplifier equipped with ECC88 double triodes
  • Selected and burned-in (60 hours) tubes of Russianmanufacture
  • Separate standby power-supply unit for low standby power consumption
  • Elaborate power supply unit with generously dimensioned toroidal transformer



  • Phono MM input
  • 4 high-level inputs
  • Additional 3.5 mm audio input on the front for portable devices
  • Headphone output
  • Generously dimensioned and insulated loudspeaker connection terminals