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Sonic Research ST-300 Turbo Tuner Mini

Sonic Research ST-300 Turbo Tuner Mini main image

Photo of Sonic Research ST-300 Turbo Tuner Mini and more gear in a pedalboard, studio, and live

Photo of Sonic Research ST-300 Turbo Tuner Mini and more gear in a pedalboard and guitar

Sonic Research ST-300 Turbo Tuner Mini

^# 26

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5.0 (16)

2 Reviews

Find out who is using Sonic Research ST-300 Mini

9 community setups

8 wishlisted

31 saved

Page last updated Jul 04, 2026

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Description

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Step up your tuning game with the Sonic Research ST-300 Turbo Tuner Mini, an essential tool for guitarists and bassists who demand precision and reliability on stage and in the studio. This compact pedal tuner offers ultra-fast response and accuracy, ensuring your instrument always sounds its best. The ST-300 Turbo Tuner Mini is designed with a unique strobe tuning feature, providing a remarkable ±0.02 cent accuracy, making it one of the most precise tuners on the market.

Perfect for tight pedalboards, the Mini's compact size doesn't sacrifice performance. The true bypass circuitry ensures your signal remains pristine when the tuner is not in use, preserving your tone without compromise. Its bright LED display is easily readable in any lighting condition, so you can stay on top of your tuning even in low-light venues.

Built for the rigors of live performance, the ST-300 Turbo Tuner Mini is highly durable, featuring a rugged metal chassis. It also supports drop tuning and various tuning temperaments, catering to a wide range of musical styles and preferences. Whether you're a touring professional or a bedroom musician, this pedal tuner offers the precise tuning capabilities you need to keep your sound in perfect harmony.

Key Features:

Ultra-fast response with ±0.02 cent accuracy
Compact design for easy pedalboard integration
True bypass circuitry to maintain signal integrity
Bright LED display for visibility in any lighting
Supports drop tuning and various tuning temperaments
Rugged metal construction for durability

Videos

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Elderly Instruments

Sonic Research ST300 Mini Strobe Pedal Tuner | Elderly Instruments

Elderly Instruments

5 Minutes with the Sonic Research Mini Turbo Tuner - Pedal Demo

Ryan Kiesshauer

Turbo Tuner ST-300 mini vs Peterson Strobostomp HD

fiveightandten

Reviews

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PROS

Highly accurate for standard and special tunings
Durable build quality, described as "built like a tank"
Bright display visible in full sunlight
Small footprint, convenient for pedalboards
Fast response time, showing sharp/flat instantaneously

CONS

Display's readability issues with bright red LEDs in some conditions

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Sonic Research ST-300 Turbo Tuner Mini.

Features and functionality

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The ST-300 Turbo Tuner Mini allows users to change the reference pitch and supports alternative temperaments.
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The full-size ST-300 includes a 9V power output, unlike the mini version, allowing for more flexible power setups.
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The mini version lacks a battery compartment and does not support the always-on pass-through mode, unlike the larger model, despite always being plugged in.
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Comparisons

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Users report the ST-300 is faster and more accurate than the TC Electronic PolyTune, making it superior for intonation work.
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The ST-300 Mini is preferred for its size and accuracy over larger, older models like the ST-200, offering the same precision in a more compact form.
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Build quality

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The ST-300 is noted for its robust construction, often described as "built like a tank."
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User experience

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Owners who perform intonation work find the ST-300's sensitivity beneficial, noting it detects even the slightest tuning discrepancies.
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Owners who have used the ST-200 for over a decade find the ST-300 Mini to be a seamless upgrade due to its smaller size and maintained accuracy.
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Owners report that the ST-300 Mini picks up notes extremely fast and accurately, enhancing tuning precision.
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Use cases and applications

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The ST-300 is highly recommended for fretless instrument tuning due to its precision and responsiveness.
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The ST-300 Mini fits snugly in compact pedalboards, even those made from unconventional items like BBQ kit suitcases.
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It is specifically noted for its superior performance in setting up intonation compared to Boss and TC tuners, making it a preferred choice for precision work.
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Value and pricing

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The tuner often sells for more on the used market than its new price, possibly due to ease of availability in certain regions.
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Buyers note that purchasing the mini version new directly from the manufacturer is as cost-effective as buying used from Reverb, highlighting the product's broad appeal and consistent pricing.
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5.0 out of 5

Based on 2 Reviews and 16 Ratings

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simeon_boyadjiev

606

about 4 years ago

The Space Saving Deadly Accurate Strobe Tuner

The mini version of the most beautiful, simplistic and accurate Tuner to have on your Pedalboard.

Roles:

Singer Guitarist Composer

Genres:

Rock Blues Funk / Soul

From Gear Setup

nicjimba55

184

almost 8 years ago

Best. Tuner. Ever.

I use one of these on my board, and another for intonating basses. It's incredibly fast and accurate. Can't see ever buying another tuner, unless one of these break.