• Stereo guitar power amplifier
  • 200 watts per channel into 4 ohms
  • 400 watts bridged for mono use
  • Carefully tailored, guitar-specific EQ
  • Input sensitivity selector for use with preamps, pedals etc.
  • Built-in limiter
  • All major protections
  • Works with virtually any cabinet(s)
Exclusive distribution
This item can be found here:
Adam Hall North America Inc.


The Palmer MACHT 402 is a 19" stereo power amplifier specially designed for guitar applications. It pumps out 200 watts per channel and 400 watts bridged to drive virtually all speaker cabinets. Featuring a highly efficient switch mode power supply and low noise fan the soft start class D design is protected against overvoltage, DC, short circuits and overheating.

Conventionally named, the channels' Hi and Low controls have been carefully tailored for guitar signals to provide extensive EQ facility, a wide variety of sounds and authentic tube power stage characteristics. In addition, the MACHT 402 sports rumble filtering, LED indicators, a 3-way sensitivity selector, built-in limiter and ground lift switch. With XLR and 6.35 mm inputs as well as Speakon compatible and 6.35 mm output connectors the Palmer MACHT 402 is the ideal power station for guitar preamps, small amps, modelers and even effects pedals.


Product type
Guitar Amplifiers

Rated ouput power (1kHz @ 4 Ohms)
2 x 200 W

Rated ouput power (1kHz @ 8 Ohms)
2 x 100 W

Rated ouput power (1kHz @ 8 Ohms, bridged)
400 W

Output circuitry
Class D

Frequency response
20 - 20000 Hz

< 0.1 %

32 dB / 26 dB / 28 dB

Input sensitivity
0,68 V / 1,4 V / 1,2 V

Protection circuits
DC , over-current , short circuit , soft start , thermal overload

ground lift , high , limiter , low , mode , On / Off , Sensitivity , volume

clip , mode , Power , Protect (protection circuit engaged) , Signal

Line inputs

Line input connectors
6.3 mm jack , RCA

Loudspeaker outputs

Speaker output connections
6.3 mm jack , Speakon compatible

low-noise fan

Operating voltage
Switching power supply

Power consumption @ full load
470 W

Operating voltage
115 V AC / 230 V AC (switchable)

482 mm

44 mm

244 mm

3,8 kg


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