You have to be careful when buying strings for Hofners- extra length is required because of the long gap between the back of the bridge, and the bar that anchors the strings to to the tailpiece.
Vintage-style Fender Mustangs have the same issue, and strings to fit are usually referred to as "Medium Scale".
Strings Direct have an excellent article on how to measure the string speaking length for Hofner basses. It also applies to other basses with unusual
Photos in the article illustrate the problem areas. Plus, they categorize all their string offerings by speaking length AND ball-to-silk length, to make it easier to determine what will fit without guesswork:
What are the correct length strings for a Hofner Violin Bass? | Strings DirectStrings Direct
Simply put, from the ball end of the string to the far side of the nut on your Hofner is probably around 32.75". Many short-scale string sets are too short to fit!
Another concern, is the distance between that side of the nut, and the closest tuner shaft. This of particular concern for some types of flat-wound strings, because if you bend the metal windings around the tuner post instead of the silk, the string may break or unwind.
As the article points out, that distance is usually 2.25" on a Hofner, so the longest suitable ball end to silk distance on most Hofner basses is 32.75" + 2.25", or 35" in total.
For instance:
- If the silks at the headstock end of a new string start at 32.25", the silk will ride on the nut, and the string won't intonate properly.
- It's the same way if there's too much silk back at the ball end. The full-diameter outer metal windings on the strings should rest on both the contact points at the bridge end and at the nut.
Taper-wound strings are about the only exception, as they are designed to have the bare core wire sitting on the bridge saddle. However, taper-wound strings should be avoided on Hofners, since you can't adjust the individual saddles for height on the wooden bridge.
IMPORTANT NOTE:
- Sometimes, you can use a razor blade to scrape off a bit of silk if the speaking length is a bit short.
- This can get you out of trouble in a pinch, but there's also a definite possibility that the windings will come undone if you scrape off too much silk.
Overdoing it with a razor blade will cause a dead, thumpy-sounding string with bad intonation. The better solution, is to pick strings that are known to fit well in the first place.
Avoid the Ignition and Contemporary Series Hofner strings, as the intonation is poor. I would only use German-branded Hofner strings, which are apparently made for them by Pyramid.
You want to aim for 32.75" to 35" ball-to-silk distance, and here is a search that will turn up suitable nickel round sets:
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Hofner strings are gauged pretty light from the factory, 40-to-90 or 40-95. This is one of the reasons that the La Bella flats made specifically for Hofners are so popular- a beefed-up E string gives them more authority.
Personally, I'm not an Ernie Ball fan. The Fender 7060's and D'Addario EXL160M's are good upgrade sets at .045 to .100.
You can think of the EXL170M's as a stiffer alternative for people with a very heavy touch, at .050 to .105.