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Thunderfunk TFB750A Bass Guitar Amplifier Head

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Product Description

The Thunderfunk TFB750A Portable Bass Amp Head delivers unsurpassed tone, punch, and clarity.
Handmade in the U.S.A. by Dave Funk, the TFB750A is an improved descendent of the amp that Jaco Pastorius loved, the legendary AMP BH-420. With an all-aluminum chassis, the TFB750A weighs in at only 21 pounds. Quieter than other amps, with two great sounding DI's, it's perfect for Studio or TV use.

Thunderfunk TFB750A Features

  • 750-watts RMS into 4 Ohms
  • The Switch with indicator LEDs
  • New Mute Switch with indicator LED
  • Limiter
  • Aural Enhancer
  • 4-Band Parametric Equalizer
  • Timbre Control
  • Headphone Jack/Line Out
  • Line In
  • New Pre-EQ Balanced DI Output
  • Post-EQ Balanced Output with Level Control
  • Ground Lift Switch for both XLR's Out
  • Pre-EQ Effects Loop
  • Post-EQ Effects Loop
  • Aluminum Chassis
  • Weighs only 21 pounds!
  • Removeble Rack Ears Standard

The Thunderfunk's tone is achieved by using high quality film caps in the preamp's signal chain... just like a high quality mixing board. Twenty-five times more expensive than electrolytics used in other amps, film cap's tighter tolerances maintain phase coherence through the amp, producing a focused punch unlike any other amp. Add two to three times the filter caps of other amps, you get a round, focused bottom that doesn't roll around the stage but instead projects into the room.

Dynamic range is a function of power, transient response, and quiet. Thunderfunk purposely does not use toroid transformers as they've found they don't sound as good as the old-fashioned EI iron. And to reduce hum, they add a hum-bucking wire across the transformer to inject hum into the preamp's ground cancelling the radiated hum achieving an amp quieter than an equivalent toroid powered amp. With the unique SS/Tube Switch you'll be able to choose from a super clean solid-state tone for slap and double bass playing, to a gutty, warm, tube-tone for all the rest.

    The Switch
    The Switch came about in September, 2003 when I spent some soundcheck time with LeAnn Rimes' bassist, Victor, and brought two Thunderfunk amps with me. We AB'd these two amps along with his EBS system. I had made a change to my design that I wanted to test, and the result was that the amp sounded more like the EBS... more HiFi and to my ears more sterile. I decided I liked my original tone better, but then I thought, Why not just put in a switch?

    The Switch changes between the original High Voltage power supply that feeds the power amp, and a separate Low Voltage power supply that gives a more hifi tone. It is subtle. It's not some dramatic tone shaping circuit. It's a change in response and texture. The more sensitive your touch, and the louder you're playing (as the effect is more pronounced when the High Voltage power supply is sagging more). the more you'll hear the difference. It's NOT a two channel amp. It's NOT intended to be changed mid-song as it's not silent. It's just another option to setup the amp for use with different instruments and styles. The Switch is not a tone shifter. In the tube position there's more upper mid-range honk. Dave Funk

Helpful Info about the Manufacturer
Phone:  1-800-284-5172 Warranty: 
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