EMG B30 EQ Control
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- Brand new in original box
- Full EMG manufacturer's warranty
- Free shipping in the continental US
In stock
- SKU
- EMG6121
Description
EMG B30 EQ Control
The EMG B30 EQ Control is a compact, battery-powered preamp designed to deliver precise tonal shaping in your signal chain with minimal footprint. This three-band equalizer integrates seamlessly into active bass and guitar systems, offering surgical control over low, mid, and high frequencies with minimal noise floor—critical for maintaining clarity and definition across recording sessions.
Tone Shaping & Mix-Ready EQ
Three independent controls provide comprehensive frequency management: ±12dB bass adjustment at 20Hz, ±10dB midrange control at 900Hz, and ±12dB treble boost/cut at 7.5kHz. The single-pole filter topology delivers broadband equalization at 6dB per octave, enabling natural, musical tone sculpting that translates well to tape and digital capture without harsh resonances or phase artifacts.
Clean Signal Path & Reliable Power
Extremely low input-referred noise of -120dBV ensures transparent signal transmission with negligible noise floor—essential for capturing detail in tracking and layering sessions. The preamp operates on standard 9V battery power (recommended) with headroom up to 27V DC maximum, delivering robust performance across extended supply ranges. At 9V operation, expect approximately 750 hours of battery life, minimizing downtime during extended studio work.
Key Features
- Input Impedance: 1 MegOhm
- Output Impedance: 2K Ohm
- Bass Control: ±12dB at 20Hz
- Mid Control: ±10dB at 900Hz
- Treble Control: ±12dB at 7.5kHz
- Supply Voltage: 9V recommended / 27V DC maximum
- Current Draw: 600µA @ 9V / 740µA @ 18V
- Input-Referred Noise: -120dBV
- Filter Type: Single-pole filters for broadband equalization
- Battery Life: 750 hours at 9V operation
The B30 combines transparent signal handling, extensive EQ range, and efficient power consumption into a reliable preamp circuit that gives engineers and producers precise control over instrument tone without sacrificing fidelity or introducing unwanted artifacts into the recording chain.
More Information
| Condition | New |
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At a Glance
The EMG B30 EQ Control is a three-band preamp offering transparent, surgical EQ shaping ideal for tracking and mixing active bass and guitar rigs in the studio. Its broadband single-pole filter topology delivers musical tone sculpting without harsh resonances, making it a dependable tool for capturing clean, articulate tones across sessions. The ultra-low noise floor (-120dBV) and extended EQ range ensure you can dial in precise frequency balance while maintaining signal integrity throughout your recording chain.
Who This Is For
Great for
- ✓ Studio Sessions
- ✓ Live Performance
- ✓ Home Recording
Skill level: Intermediate · Advanced · Professional
Frequently Asked Questions
What frequencies does the B30 control, and how much adjustment range do I have?
The B30 has three independent bands: bass at 20Hz (±12dB), midrange at 900Hz (±10dB), and treble at 7.5kHz (±12dB). Each uses a single-pole filter topology that delivers broadband equalization at 6dB per octave for natural, musical tone shaping without harsh peaks or dips.
How long does the battery last, and what are my power options?
The B30 runs on a standard 9V battery and delivers approximately 750 hours of battery life at 9V operation. It can also operate at higher voltages up to 27V DC maximum if you need extended headroom or are running it from a pedalboard power supply.
Is the B30 noisy, and will it color my tone?
No—the B30 has an extremely low input-referred noise floor of -120dBV and a transparent signal path designed for clean transmission. Its broadband EQ approach sculpts tone musically without introducing hum, artifacts, or unwanted coloration.
What instruments is the B30 designed for?
The B30 integrates seamlessly into active bass and guitar systems. Its 1 MegOhm input impedance and 2K Ohm output impedance make it compatible with active pickups and instrument electronics used in modern electric bass and guitar designs.
How compact is the B30, and can I fit it on a pedalboard?
The B30 is designed in a compact, minimal footprint suitable for pedalboard integration. Its small size makes it ideal for players who need precise EQ control without sacrificing board real estate in live or studio rigs.
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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