The Sonisfact VOS-81 Overdrive Station is an overdrive pedal whose core voicings are a Randy Rhoads style Distortion+ and a Yngwie Malmsteen style DOD250, selected with a Mode switch. Its control set covers Drive Volume, Drive, Clean Volume, an EQ Pre/Post switch, a 6-band EQ (100Hz, 200Hz, 400Hz, 800Hz, 1.6kHz, 3.2kHz), a HIT Boost Level, and separate footswitches for the overdrive and the HIT Boost1. It is listed at 6,990 Baht, with a US price of $210 given alongside1.
What it does
The VOS-81 carries two distinct voicings, selected with a Mode switch: Blizzard RR, a Randy Rhoads style Distortion+ voicing, and Fury YM, a Yngwie Malmsteen style DOD250 voicing. The Distortion+ and DOD250 are closely related circuits, and the VOS-81 puts both in one pedal, then wraps them in tone-shaping controls that neither original had: a 6-band graphic EQ covering 100Hz, 200Hz, 400Hz, 800Hz, 1.6kHz and 3.2kHz, switchable pre or post EQ placement, and a clean blend so the dry signal can sit under the drive1.
The controls are:
- Drive Volume and Drive
- Clean Volume
- EQ Pre/Post switch
- Mode switch: Blizzard RR Distortion+ / Fury YM DOD250
- 6 Band EQ (100Hz, 200Hz, 400Hz, 800Hz, 1.6kHz, 3.2kHz)
- HIT Boost Level
- OD footswitch and HIT Boost footswitch1
The HIT Boost has its own footswitch and Level control, so it can be engaged independently of the overdrive. For players comparing it with single-voiced drives such as those covered in Boss SD-1 vs Ibanez TS9 Tube Screamer, the VOS-81's pitch is different: two classic voicings plus EQ and boost in one enclosure rather than one circuit per box. It sits in the overdrive family, though its Distortion+ side leans toward the territory covered on Distortion Pedals1.
What reviewers said
Guitar Pedal X's Stefan Karlsson, writing at the launch, framed the pedal around the classic circuits it draws on: "here with the core voicings being a Randy Rhoads style Distortion+, and Yngvie Malmsteen style DOD250." He described the VOS models as combining "dual voicings, 6-band EQ, clean blend, Pre/Post EQ and HIT Boost," and, as a player who collects extended range DOD250 and Distortion+ style pedals, called the VOS-81 "another perfect match for me!"1
Sources (1)
- Guitar Pedal X, Guitar Pedal X, 2026-06-29