The Tweaker 88 is a quasi four channel (2 channels with individual boost), 88-watt amp driven by two robust KT-88 power tubes and four hand selected 12AX7 preamp tubes. Recently awarded the coveted Guitar Player’s Editor’s Pick Award and Guitar World’s Gold Award, this flagship amp allows you to personalize every aspect of your tone. The thirteen on-board Tweaker switches offer a seemingly endless palette of tonal variations. The boost channels can either be set for clean boost or volume + gain boost for your soaring solos. From lush classic clean to all out shred, the Tweaker-88 has the power and control to satisfy your jones for tone. A rugged 4-button footswitch is included.
TWEAKER SWITCHES VINTAGE/ MODERN: Transforms the feel from classic rock to modern edge USA / AC / BRIT: Choose American, British or AC EQ BOOST SELECT: Select Clean Boost or Volume + Gain Boost TIGHT & BRIGHT: Shapes the low and high-end response HOT / CLEAN: Select low or high gain MID CUT: Sculpts the critical midrange
Tweaker-88 Features and Information
88-Watt All-Tube Amp
2 x KT-88
4 x 12AX7
Bass, Middle & Treble Controls
Volume & Gain on Each Channel
Independent Boost Level Per Channel
Switch to Select Clean Boost or Volume + Gain Boost
Buffered Effects Loop with Level Selector
4 Button Footswitch Included
117V/230V Voltage Selector
Dimensions: 8.24″ (D) x 23.5″ (W) x 9″ (H)
Tweaker-88 & 2 x Tweaker-212x
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Tone Settings And Tube Layout
The less gain you use, the more defined your tone will be!
The Tweaker 88 has both a “RHYTHM” and a “LEAD” channel. You will find the LEAD channel has more gain and sounds a bit darker than the RHYTHM channel. Of course, this is not to imply we are dictating what you should play. Just giving you more Tweakability.
The suggested settings above are just that … SUGGESTIONS. Use these as a starting point to TWEAK from. Turn the knobs. Flip the switches. Get a feel for what each one does. Think of each control as another color. You will be rewarded with a vast pallet of tones to choose from.
When cranking the GAIN, the TIGHT switch is really useful for making the bass tighter and more solid.
The less gain you use, the clearer and more defined your tone will be. Try to find a happy medium between lots of gain (more fun to play) and less gain (cuts through the band better).
When experimenting with the tone controls, be aware that turning the TREBLE up and the BRIGHT switch off sounds very different from turning the TREBLE down and the BRIGHT switch on. Try both ways when tweaking the high end. You will find lower settings on the TREBLE knob result in a bit less mid range.
The RHYTHM channel BRIGHT switch is tied to the GAIN control. The higher the gain setting, the less effect the BRIGHT switch will have. You can use this to vary the amount of Brightness. Set the GAIN very low for maximum BRIGHT switch effect. If you want less, just turn the GAIN control up and reduce the MASTER volume accordingly.
4/8/16 ohm Impedance Selector Switch
Master Treble, Middle, Bass controls
Master BRIT/AC/USA EQ switch
Two Footswitchable Channels with Boost Masters
Buffered Series Effects Loop with Level Switch (Instrument or Line)
International Voltage Selector
Four Button Footpedal for Channel, Loop, Rhythm Boost and Lead Boost
Front Panel Channel Select Pushbutton CHANNEL FUNCTIONS
Separate Gain and Master Volume Controls for Each Channel
Deep/Tight, Normal/Bright, Clean/Hot and Normal/Mid Cut Switches
Modern/Vintage Voicing Switch
Boost Master with Clean or Gain setting for Each Channel
88 watts RMS @5%THD (CLASS A/B)
Matched Pair Premium Selected KT88
Four premium selected 12AX7