| Country: Japan
Weight: 4 Kg
Dimensions: 482 (w) x 282 (h) x 44 (d) mm
| trend price : 100€
Guitar Effects Processor (1987)
The GP-8 is a analog-digital hybrid multi-effect rackmount unit.
GP signal Processor a big Roland-Boss commercial success and many units sold around the world.
RACKMOUNT 1 rack unit.
Main panel features a numeric orange 16 X 2 lines display, 16 buttons and an alpha-data dial for values entries.
Back panel terminal connectors:
- stereo out
- line out
- send/ return
custom RCC input for pedal board FC-100 and optional EV-5 expression pedal. Tip: Midi and RCC as cannot be used at the same time.
TECH the main control is a 8-bits HD6303RF CPU (part of Motorola MC6803) and the internal circuit design is based on several hybrid digital / analog technologies.
The internal frequency sample response is from 40 to 12 kHz.
INTERFACE EDIT total lack of real-time knobs and many sub-menus.
The interface is not very intuitive but worst of all, all effect edits are limited to a bunch of main parameters, no deep edit is possible.
EFFECTS unit offers 8 effects that can be chained, partially edited or muted: overdrive, distortion, compressor, dynamic filter, phaser, parametric EQ, digital delay and Chorus
MIDI only 2 Midi CC# control changes are available: numbers CC80 & CC16 for expression purposes, same functions as Ev-5 pedal.
GP8 System handles Midi exclusives.
- 128 RAM performances
- NO ROM factory recall (download recover file)
Battery replacement: a kind of CR1 3V (if my memory is right) soldered to the mainboard. - Click for bigger motherboard pic -
EDIT just basic parameter can be altered, no in-depth edit is really possible.
There are 2 editors available:
- Midquest (commercial MAC/PC)
- GP8 editor (free Atari ST) LINK
No internal ROM recall, you have to reload the factory files by Midi- download this file in the "FACTORY PATCHES" below.
all snapshots, sounds, texts copyright Polynominal.com / Eric Pochesci - polynominal.com is not associated or affiliated with ROLAND in any manner.
Roland GP-8 Guitar Effects Processor
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