EMG BQS HZ System
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- Brand new in original box
- Full EMG manufacturer's warranty
- Free shipping in the continental US
In stock
- SKU
- EMG3394
Description
EMG BQS HZ System
The BQS HZ System is a complete active control and EQ platform engineered for studio and live recording applications where precise tone shaping and signal integrity are non-negotiable. This compact preamp integrates seamlessly into any bass equipped with passive pickups or EMG HZ pickups, delivering intuitive hands-on control with a clean, noise-free signal path ideal for tracking and mixing.
Control & EQ Architecture
The system features a 3-band, 5-knob layout with volume, balance, treble, mid-range, and bass controls—all equipped with center detents for quick return to neutral reference points during tracking and mix refinement. The variable mid-range frequency sweep spans 100Hz to 1KHz, allowing you to isolate and shape the midrange character during overdubs or layering multiple bass sources, while treble and bass controls deliver ±12dB of cut and boost at 20Hz for comprehensive low-end definition and high-end presence in the mix.
Power & Performance
The preamp operates on 9 or 18 volts with exceptional efficiency—drawing only 600 microamps at 9V and 740 microamps at 18V—translating to approximately 750 hours of battery life across extended recording sessions. The output impedance of 2K ohms and input referred noise of -120dBV ensure a clean, transparent signal path with minimal noise floor, critical for maintaining headroom and clarity when routing through console preamps, converters, or stacking studio effects.
Key Features
- 3-band EQ with 5-knob control configuration (volume, balance, treble, mid-range, bass)
- Pre-wired balance control (blend) and master volume
- Separate bass and treble pots with concentric/stacked mid-control
- All EQ controls and balance control feature center detents
- Variable mid-range frequency sweep from 100Hz to 1KHz
- Treble control: +/-12dB; Bass control: +/-12dB at 20Hz
- Compatible with 9 or 18 volts
- Current draw: 600 microamps @ 9V, 740 microamps @ 18V
- Battery life: 750 hours
- Output impedance: 2K ohms
- Input referred noise: -120dBV
- Dimensions: 4.00" W × 3.00" H × 5.00" D; includes concentric knob set, four single knobs, battery clip with buss connector, stereo output jack with battery switching, and interconnect cables
The BQS HZ System delivers pro-grade tone control and signal integrity in a compact, user-friendly package suitable for any studio bass rig demanding transparent EQ, low-noise performance, and repeatable tonal recall across sessions.
More Information
| Condition | New |
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At a Glance
The EMG BQS HZ System is an active preamp and EQ platform that gives you surgical control over your bass tone with zero noise—a sweepable midrange (100Hz–1KHz), ±12dB treble and bass shelving, and a -120dBV noise floor that stays clean through effects chains and long patch cable runs. Intermediate to pro engineers and producers will appreciate the transparent signal path, intuitive 5-knob layout, and 750-hour battery life for uninterrupted tracking and overdub sessions. Use it to dial in the exact character your bass needs to sit perfectly in a mix without degrading your signal.
Who This Is For
Great for
- ✓ Studio Sessions
- ✓ Live Performance
- ✓ Gigging
Skill level: Intermediate · Advanced · Professional
Frequently Asked Questions
What pickups does the BQS HZ work with?
The system integrates seamlessly into any bass equipped with passive pickups or EMG HZ pickups, offering a clean signal path regardless of your pickup type.
How long does a battery last?
The preamp draws only 600 microamps at 9V and 740 microamps at 18V, delivering approximately 750 hours of battery life per charge. You can also run it on 18V for slightly more headroom if preferred.
Can I use this with effects pedals and long cables?
Yes—the output impedance of 2K ohms and input referred noise of -120dBV ensure a clean, transparent signal even when stacking effects or running long cable runs without noise degradation.
What EQ controls are included?
The system features a 3-band, 5-knob layout with volume, balance, treble, mid-range, and bass controls. The midrange sweeps from 100Hz to 1KHz for precise tone shaping, while treble and bass deliver ±12dB of cut and boost. All controls have center detents for quick return to neutral.
What comes in the box?
The system includes a concentric knob set, four single knobs, a battery clip with buss connector, a stereo output jack with battery switching, and interconnect cables for immediate installation.
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. On this item that is roughly $14 less out the door than the same listed price at a national retailer or on a marketplace. 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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