Korg Pitchjack GB-1

With a new spin on standard concepts, these Korg tuners can't fail to interest…

The Pitchblack is aptly named, an affordable none-more-black stage tuner – even the logos and legends are in dark grey so the only thing you'll see on a dimly lit stage is the large bright read out.

With simple in/out jacks, and large chromed metal chassis footswitch, it all seems over-easy but advertises 'true bypass' plus, next to the mains adaptor 9V input, is a second socket for power output allowing you to power up other 9V pedals but only to a max consumption of 200mA.

There's also a choice of four displays – meter, strobe 1, strobe 2 and mirror – and calibration control from 436-445Hz.

The GB-1 is a simpler affair, a battery-only 'pocket' tuner designed with a fold out jack plug that plugs into your guitar or bass.

It can't be calibrated but can be configured for flat tuning (1-7 semitones in half steps) and has a yellow flash light – ideal for those pitch black onstage moments.

The Pitchblack impresses with minimal noise or alteration of your audio path, very accurate strobe-like tuning (easily accurate enough for basic set-ups too) although instead of the display choice (meter, is fine) we'd have preferred a sweetened Peterson-style tempered mode.

The GB-1? It works and is a handy gimmick – ideal for quick backstage/in-front-of-TV tuning but that's about all.

The Pitchblack is a dead simple stage tuner of excellent accuracy and quality and at a sensible price.

The GB-1 is a handy pocket tuner that'll allow you to tune up while your Pitchblack is onstage on your pedal board! Hardly essential, it's a handy, very affordable accessory for the guitarist who wants everything.

MusicRadar Rating

4 / 5 stars
Pros

The Pitchblack's accuracy and clear display; the GB-1's must-have gimmick status.

Cons

A tempered tuning mode on the Pitchblack would be good; limited use for GB-1.

Verdict

Useful tuners that will find their way into many guitarist's 'tool kits'.

Country of Origin

UK

Available Colours

Black

Colour

Black

Features

Combined digital tuner and 6.3 jack plugs directly into Guitar/Bass output jack, The angle of the display panel is adjustable for various guitar/bass types, i.e. Stratocaster, Les Paul, Telecaster, etc, Simple operation and accurate tuning with good visibility and built-in flashlight, 7 semitones Flat Tuning and 7-string Guitar and 6-string Bass tuning, For all E.Guitar and E.Bass players, from entry to high-end users.

Review Policy
All MusicRadar's reviews are by independent product specialists, who are not aligned to any gear manufacturer or retailer. Our experts also write for renowned magazines such as Guitarist, Total Guitar, Computer Music, Future Music and Rhythm. All are part of Future PLC, the biggest publisher of music making magazines in the world.

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