Detail 01
Three 12AX7 preamp tubes
The preamp includes three tube stages, with one assigned to the overdrive channel.
Product detailSKU #1500000325374
Gallien-KruegerFusion 1200S 1,200W Tube-Hybrid Bass Amp Head Black
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Independent shopping perspective
The Korena take
Built for bassists who need substantial output alongside tube-preamp control, the Fusion 1200S combines a 1,200W Class D power section with three 12AX7s. Its dedicated tube overdrive channel has tone shaping, while the four-band EQ and selectable Bump, Contour, and Presence voices give you several ways to refine the amp from the front panel. Illuminated push controls are easier to locate during a dark stage change. A selectable load setting lets the head deliver optimum power with supported cabinet impedances.
Strong match
Who this is for
- Stage rigs that need high-power bass amplification and controls visible in low light.
- Players shaping an overdriven bass sound with a dedicated tube-driven overdrive channel.
- Bass setups using supported 2, 2.7, 4, or 8-ohm cabinet configurations.
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
1,200W tube-hybrid design
A tube preamp is paired with a Class D power section.
Detail 03
Balanced DI with pre/post EQ
The direct output can be taken before or after the amp's EQ.
Detail 04
2, 2.7, 4, and 8-ohm load selection
Choose the setting that matches one of the supported cabinet-load configurations.
Final check
Know before you order
- 01Set the load-capacity selector for the connected cabinet configuration: 2, 2.7, 4, or 8 ohms.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Does the Fusion 1200S have tube overdrive?
Yes. Its preamp uses three 12AX7 tubes, including a tube dedicated to the overdrive channel, which also has tone shaping.
02Can I use headphones or an auxiliary input?
Yes. The head has both aux and headphone connections.
03Can the DI be sent before EQ?
Yes. The balanced DI provides pre-EQ and post-EQ operation.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsSound
- Impedance
- 2, 2.7, 4, 8 ohm
- Power
- 1,200W (tube hybrid)
1 detailsBody & build
- Color
- Black
2 detailsSize & weight
- Weight
- 7
- Dimensions
- 11.5” x 11” x 2.66”
1 detailsOther
- Tube
- three 12AX7 (preamp)
