
In the comments on my post on the Mongrel Strat with the Obsessive-Compulsive Tone Control, reader Dave mentioned a related product: The Stellartone ToneStyler. I ordered one and popped in into my dual-humbucker Hamer 20th Anniversary guitar (which still boasts the Seymour Duncan Joe Bonamassa pickup set I demoed here.)
(Quick memory refresher: The Vari-Tone appeared in several historic Gibson guitars, notably the ES-345. It uses a half-dozen different-sized capacitors to alter the voicing of the tone pot. It also adds an inductor, which preserves lows while the capacitors remove highs. Result: the rolled-off settings have a somewhat piercing, nasal character, as opposed to the usual dark, wooly sound of a rolled-off tone pot.)
Like some cool DIY versions of the project, the ToneStyler omits the inductor. And while it looks like a conventional tone pot,it’s actually a 16-position switch that selects between stepped capacitors, all of them smaller than in a conventional tone control. Result: rolled-off tones that maintain more volume and impact than in a conventional tone control.
Have a listen:
First, a short repeated phrase, with the tone control lowered a few notches between each repetition:
ToneStyler (Gradual Application)Next, a comparison of the wide-open, half-way-down, and all-the-way-down settings with a clean tone:
Hamer Clean, Original Pot
Hamer Clean, ToneStyler
And finally, a comparison of the wide-open, half-way down, and all-the-way down settings with a crunch tone:
Hamer Crunch, Original Pot
Hamer Crunch, ToneStyler

Some thoughts: I really dig the ToneStyler. US$109 may be a steep for a tone control, but for many players — especially ones who tend not to use their tone controls much — it will unlock enough new tones to justify the price. It doesn’t sound any better than the DIY versions, but if you don’t feel up to a messy soldering project, or don’t want to try to cram a big, messy rotary pot inside your guitar, it’s a great solution. The construction seems bullet-proof, and installation was a snap.
I tried the ToneStyler in both my tele-inspired Trussart Steelcaster and in the Hamer, and definitely preferred it with the Hamer’s Bonamassa humbuckers. I ordered the STD version, which maxes out with a .022uF cap, so the all-the-way-down position is significantly brighter than the same setting on a regular tone circuit with the standard .047uF cap. Since I often use that dark sound for EBow playing, next time I’d order Stellartone’s Jazz Model, whose maximum setting is .047uF. I’d also consider the model without a notch for each cap position. (These detentes are great for recalling a specific sound, but they make it more awkward to sweep quickly from minimum to maximum settings.)
Regarding the inductor, and lack thereof: After much experimentation with DIY Vari-Tones with and without inductors, my personal take is that a) the inductor is cool, but b) it’s not all that. (In Mongrel Strat #3, I even added a switchable inductor.) The inductor heightens the nasal, notched-wah quality of the effect, but I’d say you get about 80% of the action without one.
If you’re the sort of player who avoids using tone controls because everything other than wide-open sounds dull to you, you should definitely investigate this gizmo (or its DIY variants). Chances are you’ll develop a whole new attitude about that under-exploited control.
FYI, you can learn the basics of capacitors and tone controls from this post.
Leave a Reply