Attributes

Brand	-
Category	Musical Instrument Accessories / Guitar Electronic Accessories
Origin	-
Brand	ToneMaster
Model Number	TM-3B-JB
EQ Bands	3 (Bass, Mid, Treble)
Pickup Type	Humbucker (JB Style)
Power Source	9V Battery
Potentiometers	500k Audio Taper
Input Impedance	1 Megaohm
Compatibility	Electric Guitar & Bass
Cabling	Pre-soldered Leads
Warranty	1 Year Limited

5 reviews

Anonymous

Apr 05, 2026

Rating: 5/5

Great upgrade for my bass

Installed this on my Fender Jazz Bass. The active EQ gives me so much more control over my tone. The JB pickup sounds warm and punchy. Installation was straightforward with the diagram included.

Anonymous

Mar 23, 2026

Rating: 5/5

Smooth mids

The mid control is really useful for cutting through the mix. The JB pickup matches well with the active preamp. Shipping was fast too.

Anonymous

Mar 12, 2026

Rating: 4/5

Good value, minor noise

The preamp works well and the boost is significant. I noticed a slight hiss when the gain is maxed out, but it's manageable. For the price, it's a solid kit.

Anonymous

Jan 27, 2026

Rating: 4/5

Battery compartment tight

Sound quality is excellent. My only complaint is the battery compartment is a bit tight in some cavities. Make sure you have space before buying.

Anonymous

Jan 17, 2026

Rating: 5/5

Perfect for DIY projects

I built a custom guitar and needed reliable electronics. This kit saved me hours of soldering. The pre-soldered leads are a huge plus. Sounds professional.

5 FAQ

Q: Does this fit a standard Stratocaster cavity?

A: It depends on the routing. You may need to expand the cavity for the 9V battery.

Q: Is the battery included in the kit?

A: Yes, one 9V battery is included to get you started.

Q: What tools do I need for installation?

A: You will need a soldering iron, wire cutters, and a screwdriver.

Q: Can I use this on a 5-string bass?

A: Yes, the electronics are compatible with 4 and 5-string basses.

Q: Is the pickup wax potting included?

A: Yes, the JB style pickup comes wax potted to reduce feedback.

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