Product Detail
GK's Microbass and MB Series combos have long set the bar for performance and portability, and the influence still lasts today. The Fusion Series Combos carry on this innovative tradition. They use GK’s special 6 - stage tube preamp, 800 - watt switch - mode power amp, and Neodymium speakers. This combination delivers tube - like tone and high performance in a compact design, a feature that tube lovers previously only found in separate head and cab rigs.
The amp comes with a classic 4 - band EQ, foot - switchable tube Overdrive with dedicated tone control, a Balanced DI with selectable Pre/Post EQ, an Effects Loop, Aux In, and Headphone Output. It also has a 2, 2.7, 4, and 8 - ohm Load Capacity selector to offer optimum power with external cabinets. Each knob can be push - activated to engage functions like “Drive” and “Mute” and access additional voicing filters such as “Voice”, “Cut”, “Body”, “Contour”, “Hi Cut”, and “Presence”. The illuminated knob indicators change from white to blue when sub - functions are engaged, making on - the - fly adjustments easy even on dark stages.
The unique interconnection system uses circuit boards with gold - plated connectors instead of cables with standard tin connectors. This eliminates problems caused by constant vibration and extreme temperatures over time.
Available in 1x12, 1x15, 2x10, 2x12, and 4x10 speaker configurations, the Fusion Combos are equipped with Neodymium speakers made in GK’s California factory and a high - capacity 1” tweeter. The 800 - watt switch - mode power amp can handle large stages and outdoor venues, while the universal power (100 - 240 volt operation) makes it suitable for all kinds of gigs worldwide.
Key features include a six - stage tube preamp with (3) 12ax7s, four - band active EQ, foot - switchable tube Overdrive with tone control, illuminated knobs with push - activated voicing filters, balanced XLR output with selectable Pre and Post EQ, and more.
Technical specs show an output power of 400W internal (8 OHM), 800W with 8 OHM or 4 OHM extension, and other detailed electrical and physical parameters.
Using your Gallien - Krueger Fusion 115 800W Bass Combo Amp is straightforward. First, connect your bass guitar to the input using a standard instrument cable. You can use the 4 - band EQ to adjust the bass, low - mid, high - mid, and treble frequencies according to your preference. The foot - switchable tube Overdrive can add a warm, tube - like distortion to your sound, and you can control the tone with the dedicated knob.
When using external cabinets, select the appropriate load capacity (2, 2.7, 4, or 8 ohms) using the selector on the amp. You can also use the Aux In to play along with other audio sources and the Headphone Output for private practice.
For the voicing filters, just push the knobs to access different tones like “Voice”, “Cut”, and “Body”. The illuminated knobs will change color to show that the sub - functions are engaged.
Some important notes: Make sure to operate the amp within the 100 - 240V, 50/60Hz mains range to avoid any power - related issues. If the input is overdriven, the indicator on the trim knob will flash red, so adjust the input level accordingly.
When it comes to maintenance, keep the amp in a clean and dry place. The fans will automatically start working as the amplifier heats up, but you can clean the dust filters regularly to ensure proper ventilation. Also, check the connections periodically to make sure they are secure. With proper use and care, your Fusion 115 amp will provide great sound for a long time.
