The Sonisfact VOS-80 Overdrive Station is a dual-voiced overdrive pedal built around two overdrive voicings, an ODR-1 voicing and an SRV Screamer voicing. Sonisfact describes the pedal as covering both circuits in one box, which is the core of what it does for a player: two distinct overdrive characters on one pedalboard1.
What it does
The VOS-80 combines two overdrive characters in one enclosure. The Mode switch selects between the Nashville ODR-1 voicing and the Texas SRV Screamer voicing, so a player can move between the smooth, full-range drive associated with the ODR-1 circuit and the mid-forward Tube Screamer style of drive associated with Texas blues playing without giving up pedalboard space1. Alongside the drive itself, the pedal carries a 6-band graphic EQ, a clean blend with its own volume control, and a HIT Boost with a level control and its own footswitch1.
For players weighing overdrive against other gain types, the pedal sits in the territory covered on the site's Overdrive Pedals page, distinct from the heavier clipping of Distortion Pedals and Fuzz Pedals. Readers comparing the Tube Screamer style of drive with another classic may find the Boss SD-1 vs Ibanez TS9 Tube Screamer comparison useful background.
Controls
The VOS-80 is a twelve-control design with two footswitches, which is unusual for an overdrive pedal1.
| Control | What it does |
|---|---|
| Drive Volume | Sets the level of the overdriven signal |
| Drive | Sets the amount of overdrive |
| Clean Volume | Sets the level of the blended clean signal |
| EQ Pre/Post switch | Places the 6-band EQ before or after the drive circuit |
| Mode switch | Selects Nashville ODR-1 or Texas SRV Screamer voicing |
| 6 Band EQ | Sliders at 100Hz, 200Hz, 400Hz, 800Hz, 1.6kHz and 3.2kHz |
| HIT Boost Level | Sets the amount of the HIT Boost |
| OD footswitch | Engages and disengages the overdrive |
| HIT Boost footswitch | Engages and disengages the HIT Boost |
The EQ Pre/Post switch is the control most overdrive pedals do not have. In the Pre position, the 6-band graphic EQ shapes the signal going into the drive circuit, which changes how the drive itself responds. In the Post position, it shapes the pedal's output after the drive, which is the more conventional place for tone shaping. The clean blend, with its own Clean Volume, lets the dry signal sit under the drive, and the HIT Boost can be switched in and out independently of the overdrive for solo lifts1.
Connections and power
The pedal uses a 1/4" TS input and a 1/4" TS output, and runs on 9V DC with a center negative connection1.
The VOS-80's two voicings are the heart of the pedal: Sonisfact states that "The VOS-80 covers ODR-1 and SVR Screamer voicings," pairing the two overdrive characters in a single unit1.
What reviewers said
Guitar Pedal X's Stefan Karlsson, writing at the June 2026 launch, was enthusiastic about the format as a whole1:
"I obviously love extended feature pedals and these 12-Controls Overdrives with Dual Footswitches are right up my street1!"
Stefan Karlsson, Guitar Pedal X, June 29, 20261
His report describes the VOS models as combining dual voicings, 6-band EQ, clean blend, Pre/Post EQ and HIT Boost, and notes that the VOS-80 covers the ODR-1 and SRV Screamer voicings specifically1.
Videos
Boy59’s Shop
Questions
What do the two modes on the VOS-80 do?
The Mode switch selects between two overdrive voicings: Nashville ODR-1 and Texas SRV Screamer. The ODR-1 voicing follows the style of the Nobels ODR-1, a smooth, full-range overdrive popular with Nashville session players, while the SRV Screamer voicing follows the Tube Screamer style of overdrive associated with Texas blues playing. One pedal, two classic overdrive characters.
What frequencies does the VOS-80 equalizer cover?
The VOS-80 has a 6-band graphic EQ with sliders at 100Hz, 200Hz, 400Hz, 800Hz, 1.6kHz and 3.2kHz. That covers the low end, midrange and treble of a guitar signal in six bands, which is far more tone shaping than the single tone control found on most overdrive pedals.
What does the EQ Pre/Post switch do?
The EQ Pre/Post switch moves the 6-band graphic EQ in the signal path. In the Pre position the EQ acts on the signal before the overdrive circuit, shaping what goes into the drive. In the Post position it acts after the drive, shaping the pedal's output. Both options are useful for dialling in a tone.
What power does the Sonisfact VOS-80 use?
The VOS-80 runs on 9V DC with a center negative connection, the same standard used by most modern pedalboard power supplies. It connects through a 1/4-inch TS input and a 1/4-inch TS output.
How much does the Sonisfact VOS-80 cost in US dollars?
Guitar Pedal X listed the VOS-80 at 6,990 Baht, which it gave as $210 US, as of its June 29, 2026 report on the Sonisfact range.
Sources (1)
- Guitar Pedal X, Guitar Pedal X, 2026-06-29