Custom Guitar Electronics

for guitar and bass

Welcome to Stellartone USA!

Stellartone_2023_Anniv_Logo_B

Stellartone is a designer and manufacturer of custom guitar electronics.  Our unique products are proudly hand-made in the USA.

Our flagship product is the ToneStyler... the world's best drop-in upgrade of the tone pot in electric guitars and basses featuring hi-Z passive magnetic pickups!

The ToneStyler replaces your instrument's muddy, unused tone control.  Unlike a standard potentiometer and tone cap, which produces only ONE "low-pass" roll-off frequency, the ToneStyler's gold-contact military-grade miniature capacitor selector switch produces an expanded series of roll-off frequencies, which selectively cut treble while retaining vital mid-range and rich harmonics.

Instantly choose classic and modern tones, plus your bass or guitar's original tone.  Stellartone's proprietary 100% passive analog circuitry increases output and clarity, with no batteries - and zero noise!

 

ToneStylers are available in your choice of these maximum capacitance ranges:

CUSTOM SIX:    5.6nF (.0056µF)
CUSTOM TEN:  8.2nF (.0082µF)
GUITAR TEN:        22nF (.022µF)
BASS SIX:              47nF (.047µF)
BASS TEN:          100nF (.100µF)

See the animated chart below which compares the versatile EQ curves of the ToneStyler, vs the "single voice" tone pot.

BASS TEN       GUITAR TEN       CUSTOM TEN

The ToneStyler B-10 BASS TEN, G-10 GUITAR TEN, and the new mid-range  C-10 CUSTOM TEN are ten-position miniature capacitor array / decade selector switches, for electric guitars & basses with hi-Z passive magnetic pickups.  These unique custom tone controls feature eight contrasting capacitance circuits with uniform audio-taper spacing between tones, and the guaranteed quietest switching in this device class!

The CUSTOM TEN is a brand-new mid-range variation of our full-range ToneStyler GUITAR TEN. The reduced 8.2nF capacitance range focuses solely on mid-range, presence, and treble harmonics. Voiced to enhance the clean and overdrive tones from classic all-tube amplifiers, the CUSTOM TEN is essential for bridge pickups in both stage and studio applications.

At full clockwise rotation #10, true bypass is selected; in the adjacent #9 detent, "virtual tone pot loading" is selected, which exactly duplicates the subtle loading and treble reduction of a standard guitar or bass tone pot when turned to maximum clockwise brightness.  B-10 range: TRUE BYPASS to .100µF;  G-10 range: TRUE BYPASS to .022µF;  C-10 range: TRUE BYPASS to 8.2nF.

For use in guitars or basses with only one master volume control (PRS, Telecaster, Les Paul Jr, P-Bass) connect the shielded cable directly to the volume pot's input terminal. For Strats, connect one ToneStyler as a master, and reconnect the other tone pot also as a master.

In four-knob guitars or basses featuring two pickup volumes and two tone controls (Gibson SG, ES-335, Fender Thinline, RIC 4001), use one ToneStyler for either the bridge or the neck pickup (it will also control 'both pickups'), and leave the other tone knob as-is.  Or, upgrade with a pair of ToneStylers, for independent EQ control of each pickup.

100% passive analog circuity - no batteries - zero noise!  Includes mounting hardware and 1/2" hex nut driver.  Hand-made in the U.S.A.   MAP  $139

See the animated EQ chart below for a comparison of the audio performance of a standard single-capacitor bass tone pot, vs the multi-capacitor ToneStyler BASS TEN; check out our product specifications for more information.

ToneStyler_vs_Tone_Pot_1400px

BASS SIX        CUSTOM SIX

*** Last call - Our limited reissue run of this unique 2012 product variation is almost sold out! ***

 

The ToneStyler B-6 BASS SIX and C-6 CUSTOM SIX are six-position variations on our ToneStyler BASS TEN and CUSTOM models.  These unique custom tone controls feature five contrasting capacitance circuits with uniform audio-taper spacing between tones, and the guaranteed quietest switching in this device class!

At full clockwise rotation #6, true bypass is selected.  This circuit may be optionally configured for "virtual tone pot loading" during installation, by adding the resistor and capacitor included in each kit.  1/4" solid-shaft tip fits only 1/4" hole set-screw knobs.  Capacitance ranges: TRUE BYPASS to .047µF  /  5.6nF

Use one ToneStyler SIX in master volume guitars and basses such as the Fender Telecaster & Precision Bass. In four-knob guitars & basses, use one ToneStyler SIX to control one pickup plus the "both" pickups switch positions; you may leave the other pickup's tone pot "as-is"... or upgrade with a second ToneStyler SIX.

100% passive analog circuity - no batteries - zero noise!  Includes mounting hardware and 1/2" hex nut driver.  Hand-made in the U.S.A.   MAP  $99

VolumeStyler

Introducing "VolumeStyler"… the ten-position Precision Volume Control!

 

Stellartone's new VolumeStyler Precision Volume Control is now available in three resistance versions: 250kΩ, 500kΩ, and 1MΩ. The unique switched design produces significant tonal and operational benefits which are impossible using any potentiometer. Using a gold contact mil-spec rotary switch instead of a potentiometer, players may select between eight discrete ±3dB linear-taper loudness and blending steps, plus two flexible muting circuits: in an instrument featuring one volume knob per pickup, each pickup may be switched off independently, or all selected pickups may be switched off at once.

 

Your pickup's DC resistance and impedance never varies, from full volume to -21dB attenuation; this means your tone remains solid and unchanged, at all volumes. Importantly, this unique design eliminates variable pickup loading in basses without a selector switch... there's no more dull tone when turning down and mixing your J-bass, SG and Thunderbird pickups!

 

The ±3dB attenuation steps provide precise and repeatable pickup blends, lead/rhythm dynamic changes, and contrasting "dirty vs clean" preamp gain thresholds on demand.  This feature makes the VolumeStyler ideal for both studio and stage applications.

 

Traditional potentiometers reduce loudness, and blend pickups. When a pickup selector switch is included, as in most Gibson guitars, each volume pot will progressively load the mix of pickup outputs by adding variable parallel DC resistance, from 500kΩ at full volume to ZERO OHMS (a dead short). Gibson’s standard volume pot connection produces a light 500kΩ input loading on each pickup, at all volumes. This is desirable, because fixed loading maintains each pickup’s DC resistance and inductance parameters… the key factors which determine a pickup’s harmonic response and audio quality. However, a volume pot set to zero ohms will inconveniently mute the entire guitar; this is solved by using the 3-way pickup selector switch to “solo” any pickup.

 

When the instrument omits a pickup selector switch, such as a Fender Jazz Bass or a Gibson Thunderbird, the input and output connections on each pot must be reversed to prevent either control from silencing both pickups when set to zero; otherwise, it would be impossible to solo either pickup. Unfortunately, the pickup signals are now loaded down with parallel DC resistance, from 250kΩ to ZERO OHMS (a dead short). Each pickup’s natural DC resistance and inductance parameters are adversely affected whenever loudness is reduced; loading flattens the pickup’s harmonic response curve, and degrades audio quality. However, if the bass’s volume controls are routinely set to loud levels, the pickup loading effect will be minimized, and that bland, dull tone is avoided.

 

The new VolumeStyler solves the “backwards-wired potentiometer” tonal problem in three-knob basses, by utilizing a rotary switch instead of a potentiometer. Now, each pickup maintains fixed rather than variable loading, so the DC resistance, inductance... AND TONE of the pickups... is now unaffected by full-range loudness and mixing adjustments! Plus, by turning the VolumeStyler knob to the pickup OFF circuit in detent #2, a silent pickup has absolutely no loading or tonal effect on the other soloed pickup. Finally, all bass tones remain crystal-clear and rock-solid over all loudness and blending ranges!

 

Installation is quick and easy; a drop-in exchange for your existing pot takes only minutes. No modification or fitting is required in most instruments, such as the Precision Bass, Jazz Bass, Strat, Tele, Les Paul Jr, SG, and Thunderbird. Left-handed operation is available on special-order. Click here for PDF instructions.

 

- In single-pickup basses & guitars (P-bass style): connect the pickup's HOT output wire to the RED input wire and the tone control input; connect the CLEAR output wire to the jack.

- In master-volume + master-tone guitars (Tele & PRS style): connect the pickup selector switch output terminal to the RED input wire and the tone control input; connect the CLEAR output wire to the jack.

- In master-volume + dual-tone guitars (Strat style): connect the pickup selector switch output terminal to the RED input wire; connect the CLEAR output wire to the jack.

- In dual-volume + master-tone basses & guitars: connect the pickup's HOT output wires to the RED input wires; connect the CLEAR output wires to the output jack (Jazz Bass style) or to the pickup selector switch inputs (Gretsch & Flying V style); connect the master tone control input to the jack.

- In dual-volume + dual tone guitars (SG & RIC style): connect the pickup's HOT output wires to the RED input wires and the tone control inputs, and the CLEAR output wires to the pickup selector switch inputs.

 

Specifications:

V-10-250: Continuous input loading fixed at 250kΩ. Stepped output loading varies from 250kΩ to 125kΩ to OPEN CIRCUIT to 0Ω.

V-10-500: Continuous input loading fixed at 500kΩ. Stepped output loading varies from 500kΩ to 125kΩ to OPEN CIRCUIT to 0Ω.

V-10-1000: Continuous input loading fixed at 1MΩ. Stepped output loading varies from 1MΩ to 125kΩ to OPEN CIRCUIT to 0Ω.

100% passive analog circuity - no batteries - zero noise! Includes mounting hardware and 1/2" hex nut driver. Hand-made in the U.S.A.   MAP $139

Choose your bass or guitar's controls

Video Reviews and Demonstrations