Detail 01
Three-position Bright and Tight switches on each channel
Lets you alter the character of either channel independently.
Product detailSKU #1500000229885
SynergyBMAN Tube Preamp Module
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Independent shopping perspective
The Korena take
BMAN brings a two-channel, 12AX7-driven preamp format to a Bassman-inspired voice. Each channel has its own gain, volume, and three-band EQ, so you can set up a traditional sound alongside a more driven rhythm or lead setting. Bright and Tight switches offer further control over each channel’s character, including the ability to address loose low end. The factory Cathode Select setting is position 1, while the internal switch leaves room to experiment with the other two input-tube bass-response configurations.
Strong match
Who this is for
- Switching between a traditional setting and a more driven lead or rhythm sound during a set.
- Dialing separate EQ, gain, and volume settings for the module’s two independent channels.
Consider the trade-offs
When to look elsewhere
- Using both channels through older single-channel Egnater or Randall modular hardware; only one selected channel can be active.
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
Cathode Select switch, factory set to position 1
Selects among three input-tube bass-response configurations; position 1 uses a 1.5K resistor and 22uf capacitor.
Detail 03
Dual/Single slide switch
Selects dual-channel operation in compatible units or chooses which channel activates in older single-channel hardware.
Final check
Know before you order
- 01For older single-channel Egnater or Randall modular amps/preamps, set the slide switch to choose the BMAN channel that activates.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can both BMAN channels be switched in an older single-channel modular amp?
No. Older single-channel Egnater and Randall hardware can activate either chosen BMAN channel, but cannot switch between the two.
02What does the Cathode Select switch change?
It configures the input tube’s bass response and affects feel and tightness. The BMAN ships with position 1 selected.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsSize & weight
- Dimensions Wxhxd
- 7.01 inch x 1.5 inch x 5.51 inch
- Weight
- 1
