TUBEVOICE-Custom-made guitar amplifiers. Array

Guitar Head amplifier


The amplifier has one «EQ». «Clean» channel has two switches — «Bright» and «Boost».

«Dirty» channel is supplied with the switch between «Dirty 1» («Crunch») and «Dirty 2» («Lead») and has «Bright», «Boost» and «Mode» switches.

«Clean» and «Dirty» Channels have an individual serial «FX Loop».

«Master Loop» regulator is the same for all the channels. On the back panel «Damping» switch is available.

For domestic use of JP-20 there is an output power attenuator (20 or 5 Watt).

This amplifier are supplied with a footswitch connection for remote channel switching and have the illuminating panel changing its color according to the chosen channel.


Rated Power20/5W RMS
Loaded speakers4, 8, 16 Ohms
FeaturesFoot Switchable Channels
Preamp tubes8 x 12AX7
Power tubes2 x 6V6
Power Supply115VAC/230VAC, 50/60Hz
Dimensions490mm (W) x
240mm (D) x
230mm (H)
Weight11,7 kg


Alexander Senyushin offers get acquainted with the amplifier, to evaluate its characteristics and sound.


Guitar amplifiers and cabinets.

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