Gallien Krueger Plex Preamp

Preamp

  • Active 4-band EQ with contour control of the classic 800RB
  • Selectable voicing filter
  • Built-in chromatic tuner
  • Boost function
  • Compressor with variable level / ratio / threshold / attack / release
  • Headphone output
  • AUX input
  • XLR DI output with ground lift and pre / post switch
  • Effects loop
  • USB in / out for recording and re-amping
  • 24-Bit
  • Incl. 9V power supply
  • Dimensions (W x H x D): 13.55 x 14.3 x 3.65 cm
  • Weight: 0.68 kg
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Further information

Design Floorboard
Tubes No
Amp Modeling Yes
Integrated Effects Yes
Headphone Output Yes
Direct Out Yes
MIDI Connector(s) Yes
Integrated Expression Pedal No
Connections for Pedals or Switches No
Aux Input Yes
Integrated Tuner Yes
USB Connection Yes

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8 customer ratings:
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4.5 / 5.0
  • handling
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  • sound
  • quality
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Total
handling
features
sound
quality

An all-rounder?

Metal Gear, 20.01.2017
I bought the device because I think the idea is great to summarize the most important soil effects in one device.

Tuner / compressor / DI box / distortion 7 boost and even a usb recording device.

My opinion on the test:

Processing:

As far as super - stable housing made of smartly painted metal and neatly assembled in USA.

But already the supplied power supply and the XLR socket are unfortunately cheap Chinazeug.
I would like to please also in the same quality as the rest.

Service:

There it goes and it gets complicated. 2 times fast occur on the switch and one enters the mode "tuner". I find something tricky since the same switch also switches the compressor on and off and if you do not have the turn out, you unintentionally de en activated or activated.

The potentiometers are white and blue if they have an "activated" function. You can also press the potentiometer several times (up to 5x) in order to increase the degree of distortion to different levels.

I personally find too much of the good, but okay.

Sound:

The EQ / Boost sounds perfect, but unfortunately the distortion does not. This does not want to sound pleasant, no matter how I adjust it.

Also, I use the compressor here in a bad way in the distortion, if both activated.

I could not use the usb-feature in connection with Cubase, because my PC recognizes the PLEX only as a "microphone" !?

What annoyed me most is the tuner! Even with the "G-string" is no longer clean, since the display briefly displays and then turns black, as if nothing is important.
The "C-string" of a 6-string bass then went nothing.

That must not be and thus I remain with my mash at ground devices.

A pity since it is really a nice thing, but should be revised again.
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Total
handling
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Killer piece of gear

Doggy79, 12.09.2017
I have not owned so many preamps, but I must say that for the features this is the best one. I dig the GK tone and this delivers. No issues what so ever and the customer support from GK is top notch on eg the Talkbass forum. GK will bring new updates to the Plex making it even more advanced and user friendly. I have not yet found the modern distorted sound I'm looking for, but with the clear sounds of the preamp I do not miss it either. All in all this is my nowadays only box I use in my signal chain and will do all the recordings through it as well.
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279 €
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