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Sperzel Trim-Lok Tuners
These tuners are available in either 3 per side or 6 on a side. Please indicate preference.
If you are looking for a color or a combination tuners please indicate color selections or contact us for assistance.
Sperzel tuning keys are machined from solid billet aluminum for light weight and held to precise tolerances and quality checks to produce a precision tuning key that eliminates shaft wobble, endplay and minimum backlash. Sperzel Trim-Lok is their locking tuner that offers no tying or winding around string posts, greatly improving your tuning capabilities for playing style and enjoyment. Sperzel tuning machines are bringing in the next generation of tuners. Sperzel locking tuners can easily adapt to any guitar as a retrofit. There are no screw holes to align with existing holes.
Sperzel tuners are designed with a 12:1 gear ratio. The tuner shaft is designed to a slightly smaller diameter than standard guitar tuners. With the Sperzel locking tuners, the string is locked into place and not required to wrap the shaft to prevent slippage. When you compare the length of string pulled by a standard tuner and the length pulled by the smaller diameter Sperzel tuning machines you find the 12:1 ratio compares more closely to 18:1 against other tuners.
Sperzel tuning machines come in several styles.
Here's how the SPERZEL Trim-Lok works:
The Trim-Lok is a mechanical locking tuner. First you loosen the
until locking pin inside string post clears string hole. Now, insert string into hole and pull string all the way
post until tight, while holding string screw the locking knob in
until the string is locked to post. Do not over-tighten; finger
tight will do. Then, tune to pitch (Approximately 1/2 turn with
tuning button). You should be in tune; cut excess string and
repeat the process for remaining strings
NOTE! When installing staggered post height sets, there
short posts, two medium posts and two long posts. Start with
high "E" string and work back towards low "E."
Rule of Thumb: Always start with the shortest post furthest away and longest post closest to the nut.
Here's how the SPERZEL Sound-Lok Works
The Sperzel Sound-Lok tuner is a friction lock system, and has the look but not the inconvenience of vintage safety posts of the past, where you had to measure the string and cut to length. This was very time-consuming and wasteful, especially if you cut the string short.
The Sperzel Sound-Lok needs no measuring; simply insert string into the hole by the slot and feed string all the way through the shaft until it comes out the bottom of the post. Pull the string until tight, then bend the string so it lies in the slot on top of the post. With your thumb holding the string in place, tune to pitch with tuner button (Approximately 1/2 - 1 full wrap is required). The string will automatically grab and lock into place. Cut any excess string and repeat for the remaining strings.
Sperzel offers a number button shapes and finishes to choose from and also comes in colors(From left to right): No. 1, No. 2, No. 5 & No. 6
*Images not actual scale, please call for details.
All Sperzel tuning keys are available in many colors and
combinations to individualize your guitar. Break away from
traditional plated finishes. In reality, the anodized
better for the integrity of the tuning key because it is
into the components and does not affect tolerances and is
environmentally sound. Plating is a coating and is not
Note: All prices in US Dollars