Detail 01
Attack: 1ms–100ms
Sets how quickly the compressor responds once the signal crosses the selected threshold.
Product detailSKU #1500000438911
SuhrKoji Black Edition Compressor Effects Pedal
1/7
Independent shopping perspective
The Korena take
Koji Black Edition is an analog compressor built around adjustable compression, output level, attack, and dry/compressed blending. The Mix control lets you retain part of the unaffected signal while adding compression, so the effect can stay restrained or become more pronounced. Its three Voice settings shift the upper-mid and treble emphasis, while the gain-reduction LED gives a clear visual readout of how much compression is being applied. Selectable bypass and FX Link control add useful pedalboard-routing flexibility.
Strong match
Who this is for
- Setting compression amount while keeping a chosen proportion of the original dry guitar signal.
- Building several compression responses with upper-mid emphasis, transparent response, or added upper-mid and treble presence.
- Pedalboards using an external switch or loop switcher through the FX Link connector.
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
3-color gain-reduction LED
Green indicates minimal reduction, orange moderate reduction, and red significant reduction.
Detail 03
Bypass
Choose true bypass or buffered bypass operation.
Detail 04
Power
Accepts 5V–18V DC, with 9V as the nominal operating voltage.
Final check
Know before you order
- 01Use a regulated, center-negative 9V DC supply with a 2.1mm x 5.5mm connector.
- 02FX Link uses a 1/8-inch mono connector and supports up to 3.3V DC.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can I blend compressed and uncompressed signal?
Yes. The Mix control adjusts the dry-to-compressed ratio from 10% to 100%.
02What do the Voice switch positions do?
Left boosts upper-mid attack, center is transparent, and right adds upper mids and treble for a smooth, glassy top end.
03What happens when battery voltage becomes too low?
The low-battery monitor alerts you and automatically changes the pedal to true bypass when voltage is insufficient for correct operation.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Black
9 detailsConnections & power
- Input Impedance
- 1M Ohm
- Output Impedance
- 600 Ohm
- Fx Link Connector
- 1/8 inch Mono
- Over Voltage Protection
- Yes
- Power Connector
- 9Vdc regulated center negative 2.1mm x 5.5mm
- Maximum Voltage
- 20Vdc
- Fx Link Max Voltage
- 3.3Vdc
- Operating Voltage
- 5V to 18V (nominal 9V)
- Reverse Battery Protection
- Yes
4 detailsOther
- Gain Reduction Indicator
- 3 color LED
- Shield Tip
- Activate On/Off
- Attack Time Range
- 1ms-100ms
- Rohs Compliant
- Yes
