EMG BQC 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
- EMG3393
Description
EMG BQC HZ System
The EMG BQC HZ System is a refined 3-band preamp designed to unlock the full tonal potential of passive pickups, particularly EMG HZ models. This compact, battery-powered unit delivers studio-grade tone shaping in a format that integrates seamlessly into existing instrument wiring, enabling transparent, articulate EQ control without sacrificing headroom or introducing noise—critical for clean recording chains and post-production flexibility.
Tone Shaping & Control
The preamp features independent treble and bass controls offering ±12dB of adjustment, paired with a variable mid-range frequency selector spanning 100Hz to 1KHz. This architecture supports precise sculpting across the frequency spectrum during tracking and mixing—from deep, focused low-end reinforcement to extended high-frequency articulation and surgical midrange presence adjustment, giving you the EQ tools to craft balanced, mix-ready takes without relying solely on DAW processing.
Electronics & Power
Operating at a recommended 18 Volts with a maximum rating of 27 Volts DC, the system delivers -120dBV input-referred noise and a 2K ohms output impedance for clean signal transmission to your interface or mixing console. Battery life reaches 750 hours at typical 9V/18V operating currents of 600/740 microamps respectively, supporting uninterrupted session work across multiple projects between battery changes.
Key Features
- 3-band preamp optimized for passive pickups including EMG HZ models
- Controls: Volume, Blend, Treble/Bass Stack, and Mid/Mid Stack
- Variable mid-range frequency: 100Hz to 1KHz
- Treble control: ±12dB adjustable
- Bass control: ±12dB @ 20Hz
- Input referred noise: -120dBV
- Output impedance: 2K ohms
- Recommended supply voltage: 18 Volts; maximum 27 Volts DC
- Current consumption: 600µA @ 9V / 740µA @ 18V
- Battery life: 750 hours
- Includes BQC HZ unit, 2 concentric knob sets, 2 single non-concentric knobs, battery clip with buss connector, stereo output jack with battery switching, and 4 interconnect cables
The BQC HZ System combines low-noise operation, comprehensive EQ flexibility, and straightforward control architecture to deliver transparent tone enhancement for passive pickup instruments—ideal for home studios seeking professional recording results without complex signal routing.
More Information
| Condition | New |
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At a Glance
The EMG BQC HZ System is a battery-powered 3-band preamp that unlocks the recording potential of passive pickups by adding transparent, surgical EQ shaping directly into your signal chain. Built for home-studio work and professional sessions, it offers a variable midrange frequency selector (100Hz–1KHz), ±12dB treble and bass control, and extremely low noise to keep recordings clean and detailed. Use it to capture articulate, well-defined tones from passive instruments without the noise floor or muddiness that can plague raw passive signals.
Who This Is For
Great for
- ✓ Studio Sessions
- ✓ Home Recording
- ✓ Gigging
- ✓ Live Performance
Not the best pick for
- – Practice
- – Beginners
Skill level: Intermediate · Advanced · Professional
Frequently Asked Questions
What pickups does the BQC HZ System work with?
The BQC HZ System is optimized for passive pickups, especially EMG HZ models, and integrates directly into your instrument's wiring via concentric and single knob sets included in the package. It works with any passive pickup that fits standard control layouts.
How long does the battery last, and what voltage does it need?
The system runs on 18 Volts (recommended) or up to 27 Volts maximum, with a battery life of 750 hours at typical operating current. At 9V operation it draws 600µA; at 18V, 740µA—so a standard 18V battery lasts well over a month of regular use.
Can I adjust the midrange frequency, or is it fixed?
The midrange frequency is fully variable from 100Hz to 1KHz, so you can dial in surgical presence adjustment anywhere in that range depending on your instrument and tone goals. Combined with ±12dB treble and bass control, you have complete frequency sculpting power.
What's the noise floor, and will it add hum or hiss to my signal?
The BQC HZ System delivers -120dBV input-referred noise, which is studio-grade—exceptionally clean for a battery-powered preamp. This means you get transparent EQ enhancement without the noise floor or hum that can plague passive-only setups.
What comes in the box?
The kit includes the BQC HZ unit, 2 concentric knob sets, 2 single non-concentric knobs, a battery clip with buss connector, a stereo output jack with battery switching, and 4 interconnect cables—everything you need to wire it into your instrument.
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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