EMG Stacked Bass/Treble Control (1 Potentiometer
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- Brand new in original box
- Full EMG manufacturer's warranty
- Free shipping in the continental US
In stock
- SKU
- EMG371
Description
EMG Stacked Bass/Treble Control (BTC) — 1 Potentiometer
The EMG BTC Control is a compact, concentric stacked potentiometer engineered for recording bass with surgical precision in a single control footprint. Its dual-knob architecture—bass and treble stacked on one shaft—delivers professional-grade EQ shaping without consuming valuable panel real estate on your pedalboard or rack setup. Built on surface mount technology, this circuit operates with minimal current draw and exceptional signal clarity, making it transparent enough to preserve the character of your instrument while providing powerful tone-sculpting tools.
Signal Path & Tone Shaping for Session Work
The BTC offers ±12dB of gain/attenuation on both bass and treble circuits, with the bass control centered at 20Hz for deep low-end sculpting that sits tight in dense mixes. Treble response is programmable via dual-dip switches across 2100 Hz, 3500 Hz, 4500 Hz, and 7000 Hz, allowing you to voice your bass tone for different recording contexts, room acoustics, and mix requirements. Input impedance of 1 MegOhm and -120dBV input-referred noise ensure transparent signal handling with virtually no self-noise, preserving transient detail and punch during tracking and layering.
Power & Operational Efficiency
Operating from a standard 9V battery (rated for approximately 750 hours of use), the BTC draws only 600 microamps at 9V, making it ideal for active bass systems with minimal battery drain during long studio sessions. The circuit supports up to 27V DC maximum, with an 18V recommended supply for extended headroom and reduced distortion under dynamic playing, and delivers 2K Ohm output impedance for reliable interaction with audio interfaces, preamps, and mixing consoles.
Key Features
- Concentric (stacked) shaft design—bass and treble controls on single potentiometer
- Bass control frequency: 20Hz
- Treble control frequencies (selectable via dip switch): 2100 Hz, 3500 Hz, 4500 Hz, 7000 Hz
- Gain/Attenuation: ±12dB on both bass and treble circuits
- Input Impedance: 1 MegOhm
- Output Impedance: 2K Ohms
- Input-Referred Noise: -120dBV
- Operates on 9V battery (750-hour battery life); supports up to 27V DC maximum
- Current draw: 600µA @ 9V, 740µA @ 18V
- Surface mount technology with minimal current consumption
- Includes concentric knobs, battery clip with buss connector, stereo output jack with battery switching, and four interconnect cables (2 red, 2 white)
- Dual-dip switch for programmable high-end frequency response
The EMG BTC Control combines studio-grade tone control with ultra-low noise and exceptional efficiency—a benchmark solution for active bass recording and professional audio production.
More Information
| Condition | New |
|---|
Reviews
At a Glance
The EMG Stacked Bass/Treble Control is a dual-band EQ module engineered for studio recording and mixing, offering ±12dB of independently adjustable bass (20Hz) and treble (4 selectable frequencies) with exceptionally low input noise (-120dBV) and transparent signal path. Its programmable high-end response and minimal current draw (600µA @ 9V) make it ideal for building or upgrading active bass preamps and monitoring chains in home and professional studios. Pick this for sculpting tight, articulate bass tones in the mix without coloration or self-noise.
Who This Is For
Great for
- ✓ bass guitar setup
- ✓ active bass systems
- ✓ studio sessions
- ✓ live performance
Not the best pick for
- – passive instruments
- – budget builds
Skill level: Intermediate · Advanced · Professional
Frequently Asked Questions
What skill level is required to install this control?
This is an intermediate-to-advanced component suited for bass players and engineers experienced with active electronics. Installation requires soldering and basic circuit knowledge; it is not recommended for first-time builders or passive instrument setups.
Can I adjust the treble frequency, or is it fixed?
The treble frequency is programmable via dual-dip switches and can be set to 2100 Hz, 3500 Hz, 4500 Hz, or 7000 Hz, allowing you to tailor the high-end character to different instruments and playing styles.
How long will a 9V battery last in this control?
A standard 9V battery is rated for approximately 750 hours of use, thanks to the control's minimal current draw of 600 microamps at 9V. The circuit also supports up to 27V DC maximum if you need extended headroom.
What comes in the box with this control?
The package includes concentric knobs, a battery clip with buss connector, a stereo output jack with battery switching, and four interconnect cables (two red, two white) for signal routing.
How does this compare to other stacked bass/treble controls?
The EMG BTC offers surgical EQ with ±12dB range on both bands, programmable treble frequencies, and studio-grade noise performance (-120dBV input-referred noise), placing it on par with controls like the Aguilar Tone Hammer and Seymour Duncan 3-Band EQ in terms of transparency and tone-shaping precision.
Do I pay sales tax on this order?
We collect sales tax only on orders shipped to California. Orders shipped to any other US state are charged $0 sales tax at checkout when you buy direct from our website. Marketplaces such as eBay, Reverb and Amazon collect sales tax in nearly every state as marketplace facilitators no matter who the seller is, so the same item at the same price costs less bought direct. Free US shipping and 30-day returns are included. Some states ask buyers to self-report use tax on out-of-state purchases.
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