Korg Sledgehammer Pro review

  • £36
  • €39
  • $30

Stand-out clip-on tuners

Image 1 of 2 Korg Sledgehammer Pro
The Pro's display is on a par with a Peterson Virtual Strobe
Image 2 of 2 Korg Sledgehammer
The standard Sledgehammer's more basic display is better for students

Our Verdict

Not the cheapest, but in terms of accuracy, the Pro is the way to go.

For

  • Extremely fast and accurate. Sledgehammer Pro is the best clip-on we've tried. Lightweight. Easy to read.

Against

  • Price. The regular Sledgehammer is a little less accurate.
Buying options

These new lightweight Sledgehammer tuners from Korg share a wide- jawed plastic clip and fully rotating tubular head.

The Sledgehammer has a recessed flat screen with thumbwheel controls at each end. The left wheel, moved up, turns the power on; turned down, you select chromatic, guitar or bass modes.

"Accuracy and quick response here are extremely good"

The right wheel, moved up, calibrates the tuning reference from 436-445Hz; moved down, you enter the flat (down five semitones) or capo (up seven semitones) modes.

On its rounded '3D' display, the all-black Pro has a choice of read-outs (regular, strobe and half strobe) but does away with the specific guitar and bass modes. It has improved accuracy(+/-0.1asopposedto +/- 1 cent) and increases battery life from eight to 14 hours.

In Use

Accuracy and quick response here are extremely good. The standard Sledgehammer's more basic display is better for students; yet it's a little slower and seems very slightly less accurate.

The Pro, however, especially in strobe mode, is on a par with a Peterson Virtual Strobe - we achieved excellent results with both a troublesome nylon string and gigging a bass.

Accurate and lightweight they may be, but both are on the steeper side, price-wise, of the clip-on tuner market.

The Pro, however, is the most accurate tuner of its type we've yet encountered, and the most visible, in terms of that '3D' display.

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Tech Specs

FeaturesThree display modes