Detail 01
Resonant frequency 530 Hz
Emphasis sits low, in the low mids. The low B comes across thick and solid instead of thin.
Product detailSKU #1274034493432
Seymour DuncanAHB-1b Blackouts 7-String Phase II Active Humbucker bridge Black
Independent shopping perspective
The Korena take
Active bridge humbucker sized for seven-string guitars. Low-noise preamp and a low-mid emphasis, aimed at heavy-gain players who need the low B to stay defined.
Strong match
Who this is for
- Seven-string rhythm playing in drop tunings
- High-gain rigs where pickup hiss shows up between riffs
- Replacing a stock seven-string bridge pickup that blurs low down
Consider the trade-offs
When to look elsewhere
- Six-string guitars — spacing and size are seven-string
- Players who want passive dynamics and volume-knob cleanup
- Guitars with nowhere to put a battery
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Noise rated −96 dBV
Very low self-noise. Gaps between riffs stay quiet at gain settings where passive pickups start hissing.
Detail 03
Battery life 1420 hours
About two months of continuous draw. Pull the cable when you stop playing or it keeps drawing power.
Detail 04
1 kOhm output impedance
Low impedance drives long cable runs without losing treble, so your tone doesn't change with cable length.
Detail 05
18 dB preamp gain, 2.00V RMS output
Hits the amp far harder than a passive pickup. Less clean headroom, more compression at the front end.
Detail 06
Discrete hybrid differential FET preamp
Built from individual parts with a differential input, which rejects noise picked up on the way to the output.
Final check
Know before you order
- 01Needs a 9V battery and a cavity or route to hold it
- 02Wants a stereo jack so the battery disconnects when unplugged
- 03Bridge position only, and sized for seven-string spacing
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will it fit a six-string guitar?
No. This is the seven-string size, so the pickup body and pole spacing won't line up with a six-string route or strings.
02How long does the battery last?
It's rated at 1420 hours of use. That's roughly two months running nonstop, so normal playing gets many months from one battery.
03Why does the battery drain when I'm not playing?
The circuit powers up whenever a cable is plugged into the jack. Unplug the guitar when you're done and it stops drawing.
04Is it quiet under heavy gain?
Yes. It's a humbucker with self-noise rated at −96 dBV, so it stays quiet in rooms where single-coils buzz.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsSound
- Resonant Frequency
- 530 Hz
2 detailsPickups & controls
- Preamp Gain
- 18 dB
- Preamp Topology
- Discrete hybrid differential, FET input
1 detailsBody & build
- Color
- Black
4 detailsConnections & power
- Output Impedance
- 1 KOhm
- Maximum Output Voltage
- 2.60 Volts RMS (2)
- Battery Life
- 1420 hours (3)
- Average Output Voltage
- 2.00 Volts RMS (1)
2 detailsOther
- Current Consumption
- 350 micro-amperes
- Noise
- -96dBV
