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Summit Audio TD100 Instrument Preamp and Tube Direct Box 


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Discounted Price $505.70
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Discounted Price $505.70
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The new TD100 instrument preamp and tube direct box from Summit Audio features a hybrid signal path utilizing both a discrete solid state output device and a 12AX7A/ECC83 vacuum tube to give your musical instruments the clarity of class A sound with the richness and warmth of vacuum tubes all in a 1/2 rack unit. Perfect for both live and studio use, the Summit TD-100 offers both XLR microphone level and 1/4" TRS line level outputs, plus variable input impedance, polarity switch and ground lift, signal and overdrive LEDs, and even a headphone output for use as a practice device. All with the quality that says Summit Audio.
    •  Variable input impedance from 10K ohms to 2M ohms •  XLR mic level output •  1/4" TRS line level output •  Headphone output •  Up to +24dB output gain •  Signal ground lift •  Polarity switch •  Signal and overload LEDs •  Internal high voltage power supply •  One 12AX7A/ECC83 vacuum tube •  3 year warranty

Things You Will Get:

  • Direct Box

Outstanding unit


I use this with Jim Kaufman's sunrise pickup and vintage Bill Lawrence pickups in my acoustic guitars. I play fingerstyle such as Kottke, Hedges, Juber, Van Ronk, Reed and Dadi. This adds clarity and fullness to notes especially in the low end. Extremely clear, distinct, and warm low end. Dead silent, zero noise with 140dB signal to noise. Hand made in the USA. Very high quality and road worthy. It has balanced di out, balance/unbalanced 1/4 out, 1/4 headphone out, and 1/4 thru. It has 1/4 input with adjustable input impedance from 10k to 2M, adjustable gain from 0 to 24 dB, ground lift and phase switches. This td-100 preamp has a +185V plate voltage on the 12ax7a. This preamp has lots of uses, but its ideal for sunrise and vintage Lawrence soundhole pickups for fingerstyle guitar!


Tampa, FL


TD100 Instrument Preamp and Tube Direct Box 

5.0 1


Series Direct Input Products
Model TD100
Warranty Info:

TD100 Instrument Preamp and Tube Direct Box 

The manufacturer's warranty covers parts for three years and labor for three years from date of purchase. The warranty excludes damage from misuse, abuse, and contains other exclusions.