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Electro Harmonix SYNTH9

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This item is warranted for 3 years
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Ref.: 254691

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Description

Essential Information About the Electro-Harmonix SYNTH9 Pedal

  • 9 vintage synth sounds directly from your guitar or bass, no special pickup needed
  • Fast and precise tracking: usable up to around the 23rd fret on the high E string (guitar) and up to the open A string (bass)
  • Convenient dual output: a mixable "synth" output and a dedicated "dry" output to keep the guitar/bass signal intact
  • Simple and effective controls (DRY, SYNTH, CTRL1, CTRL2 + preset selector) to shape each preset

A Tribute to Iconic 70s/80s Keyboards, Pedalboard Style

The SYNTH9 follows in the tradition of Electro-Harmonix pedals capable of transforming a guitar signal into new textures, here with a decidedly "vintage synth" approach. The 9 presets draw inspiration from iconic analog colors (pads, leads, strings, synthetic basses) and immediately evoke the aesthetic of legendary productions, from art-rock and synth-pop to the most cosmic funk. If your references range from ELP to Kraftwerk, through Joy Division, P-Funk, or Peter Gabriel, you'll find that spirit right from the first notes.

Who Is It For, What Styles, and In What Context?

The SYNTH9 is aimed at guitarists and bassists who want to add a genuine synth layer to their playing without changing instruments. It suits both intermediate musicians (instant presets, clear settings) and creative studio artists seeking polyphonic textures and "keyboard-style" bass lines.

It excels particularly in pop, rock, electro, new wave, funk, prog, but also in ambient when combined with delay or reverb. Live, it becomes a formidable tool to fill space (pads, strings) or trigger synth leads. On a pedalboard, it ideally works at the start of the chain to maximize tracking accuracy.

Controls, Routing, and Setup Tips

The interface is designed for straightforward sound dialing: two volumes (DRY and SYNTH) allow balancing the guitar/bass and synth texture, while CTRL1 and CTRL2 change functions depending on the preset (color/tone, attack, modulation, intervals, vibrato speed, portamento, etc.). The 9-position selector grants access to diverse worlds: OBX, Profit V, Vibe Synth, Mini Mood, EHX Mini, Solo Synth, Mood Bass, String Synth, and Poly VI.

For best performance, place the SYNTH9 first in the chain, then add modulation, delay, and reverb. Avoid putting distortion/overdrive before the pedal; if you want to dirty the sound, place the overdrive after the SYNTH9. Note: an internal compressor is active on synth sounds, stabilizing attack and improving note clarity.

Sound Characteristics

The SYNTH9 offers an "analog"-styled palette: expressive leads that cut through the mix, wide pads and strings to thicken choruses, and deep, funky synth basses. The sound is intentionally musical and inspiring, with a very immediate playing feel when the input signal is clean and well-defined. By adjusting the DRY/SYNTH mix, you can go from a total keyboard-style transformation to a subtle blend that retains the guitar attack for better stage presence.

Technical Specifications

Effect Type and Presets

  • Polyphonic synthesizer pedal for guitar and bass
  • 9 presets: OBX, Profit V, Vibe Synth, Mini Mood, EHX Mini, Solo Synth, Mood Bass, String Synth, Poly VI
  • Usable tracking range: up to around the 23rd fret on the high E string (guitar) and up to the open A string (bass)
  • Built-in compressor active on synth sounds

Controls

  • Knobs: DRY VOL, SYNTH VOL, CTRL 1, CTRL 2
  • Preset selector (1 to 9)
  • Bypass footswitch with status LED

Connectivity

  • Input: 6.35mm Jack
  • Dedicated DRY output (intact signal via buffer): 6.35mm Jack
  • SYNTH output (DRY/SYNTH mix): 6.35mm Jack

Bypass and Impedances

  • Bypass: buffered bypass
  • Input impedance: 1M?
  • Output impedance: 500?

Format

  • Dimensions (W x D x H): 102 x 121 x 89 mm

Included Accessories

  • EHX 9.6V power supply included
  • Documentation

Power Consumption

  • Required power: 9.6V DC
  • Consumption: 100 mA
Brand reference number: SYNTH9

Testimony

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Interesting pedal for creating arrangements and especially for having fun. Why not on stage. Great with an Electro nylon type Godin. You can adjust the balance between the guitar and the synth. A bit disappointed with saturated sound. You have to dose if you don't want to lose quality and dynamics. Satisfied overall. Remains simple to use. You have to create your own presets like most pedals and spend some time with the knobs.
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Posted on 13/07/2022
By CHRISTOPHE ALARY
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I find it a bit expensive compared to the quality of the sound delivered
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Posted on 19/11/2020
By thierry cros
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