Fusion 550
Gallien-Krueger Introduces first Tube/Solid State Hybrid Bass Head


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Gallien-Krueger, the king of solid state bass amps, introduces its first bass head featuring an all tube preamp. The Fusion 550 bass head incorporates a uniquely designed six stage tube preamp paired with a 500 watt version of the high current solid state power amp used in the 1001RB-II. The rich warmth of tubes combined with the quick, punchy power that GK bass amps are known for is an experience like no other. And as if that wasn't enough, GK takes the next step in innovation by incorporating motorized knobs which allow you to store two different settings. This gives you the ability to dial in a separate overdriven or slap tone and footswitch between them. A first for a fully analog bass amplifier! The Fusion 550 also features a simplified version of GK's exclusive 50 watt Horn Bi-Amp System. Dial in the horn where you like it and as you adjust your volume with the master control the ratio between the woofer and tweeter is preserved. Other features include tube driven four band active EQ and voicing filters with a frequency select for the contour control. The rear panel features include Neutrik Speakon and ¼" speaker output jacks, effects loop, tuner out, and a footswitch input jack. Also on the rear panel is a DI output which uses an isolated transformer for ultra-quiet operation.

"Bob Gallien has done it again. Not only is the 550 the best sounding tube amp I have ever played : raw, dirty, clean , and punchy, but the Neo 15 is the first bass cabinet  that I can here the fundamental on the B string, 32 cycles,  speaking and resonating clearly. The 2 cabinets together helps the 550 push a lot of air with the warmth from the tubes. Now that's what I call Booty Bass!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! The 1001rb on  top of the 2 neo 15's killed the room with things falling off the wall. I think this might be a new live stage setup. With the power of the 1001 matching more closely the power of the 2/Neo 15', the cabinets went into a whole new sound dimension, full range, tight, spacious, and LOUD. I'm interested to see how the other horn loaded cabinets are going to sound, but what I explained above is a definite keeper. And one of the biggest thing of all is that are LIGHT in weight." - Brandino (Justin Timberlake, Joss Stone, Aretha Franklin)

Power Amp:
500 watt Class G solid-state power amp
50 watt Horn Bi-Amp System
Toroidal transformer
 
Pre Amp:
Six stage all tube preamp (three 12AX7's)
Footswitchable two channel motorized controls
Tube driven four band active EQ
Contour control with 500Hz-800Hz mid frequency select
Deep and bright switch
Mute switch(footswichable)
¼" input jack with active/passive switch (-14dB)
 
Rear Panel
Effects loop & tuner output
Active DI with level control, pre/post and ground switch
Two Horn Bi-Amp compatible Speakon outputs
Two ¼" speaker outputs (fullrange only)
Rear-vented temperature controlled fan
 
Dimensions:
19" Wide x 5.25" tall x 10" deep
Three rack spaces

27.5 lbs.