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ENGL E640 Invader 150 Head
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ENGL E640 Invader 150 Head

Tube Guitar Amp Head from ENGL belonging to the Invader series

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kirk77 kirk77
Published on 04/20/07 at 14:09
Head tube amp:
Amplifiers:
V1, V2, V3, V4, V5, V6 -> EL34, matched set

Preamp:
V7 -> ECC 83 / 12 AX 7, input tube
V8, V9 -> ECC 83 / 12 AX 7, selected
V10-> ECC 83 / 12 AX 7 standart

Delivers 150W with 3 output has impedance (2 x 4, 2 x 8, 1 x 16 ohms)

Guitar input jack, two effects loops, a MIDI In, MIDI input thru
jack for ENGL Z-9 Footswitch, jack for ENGL Z-4 / Z-3 footswitch, preamp out / tuner, line out / power amp.

4 channels with separate EQ (treble, mid, bass)
Separate gain and volume control for each channel
POTENTIOMETER presence
POTENTIOMETER "Depth Punch"

MIDI programmable functions:
Master A / B,
Bright switch for channel 1 and 2
switch Hi / Lo Gain for channel 3 and 4
FX Loop 1 and 2,
Noise Gate
Amp Mute (Tuner)

71 x 27 x 29 cm, 21 kg

UTILIZATION

How this head was designed could not be simpler. This is truly a head 4 channels (clear crunch, saturated lead) for each channel with separate EQ (gain, bass, mid, treble, and volume).

The potentiometer is common in the presence of four channels and the knob of deph punch: you have a little time to find an interesting adjustable so that the sound of any channel is injured.
In other words, put the punch depth to 3 / 4 full for sound may be interesting but if we look at the same time a clear as crystal that AC may be missed. Therefore linger to find a compromise solution by adjusting the bass level of equalization of each channel. Of course, as the name suggests the "deph punch" is used to grow the "bass" and does not overlap completely with the register of the bass EQ knob Bass but it's easily found with a little patience.
Nothing to say about the presence knob, set it to 13h.

(Writing to come)

SOUNDS

(Writing to come)

OVERALL OPINION

(Writing to come)