Summit Audio TD-100 Instrument Preamp / Direct Box

The Summit Audio TD-100 is a single channel direct box and instrument preamp featuring a hybrid signal path utilizing a solid state output device and a 12AX7A/ECC83 vacuum tube. This unique combination of of solid state and vacuum tube technology gives the TD-100 the benefits of both worlds: the high reliability and long life of solid state and the warm overtones associated with vacuum tubes. Other great features such as continuously variable input impedance, polarity switching, and a headphone output make the TD-100 a great sounding tool for the studio or the stage.

Summit Audio TD-100 Instrument Preamp / Direct Box Features

• Ease of Operation
• Headphone Output
• Variable Input Impedance
• Direct Output for easy parallel connections
• Balanced Outputs
• Hand Crafted in the U.S.A.

Summit Audio TD-100 Instrument Preamp / Direct Box Specifications

• Size and Weight
  • Height: 1.75 inches (4.44 cm)
  • Width: 8.5 inches (21.59 cm)
  • Depth: 8.5 inches (21.59 cm)
  • Weight: 5 pounds (2.27 kg)
• Power Configuration
  • Internal AC Supply: 20 watts, 115, 50 or 60 Hz (USA model)
  • Fuse size: .5 amp, slo-blo for 100/115 V
  • Fuse size: .25 amp, slo-blo at 230 V
• Impedance Data
  • Input Impedance: 10K-2M ohms
  • Output impedance:
    • XLR: 2K ohms
    • TRS: 600 ohms
• Connections
  • Instrument Input: 1/4″ Jack
  • Direct Instrument Output: 1/4″ -10 dB balanced
  • Outputs: +4 dB male XLR and 1/4″ -10 dB balanced
  • Stereo Link: 1/4″ mono Jack
  • Headphone Output: 1/4″ stereo jack (600 ohms)
• Max input level
  • Max input level: +23dBu
  • Max output level: TRS: +21dBu, XLR: +2dBu
  • Max gain: 24dBu
• Operating Measurements
  • Frequency response: 20Hz-100kHz -1dB
  • Signal to noise ratio: 140dB
  • THD + Noise: 0.14%, +5dB in, unity gain
  • Vacuum tubes: single 12AX7A
• Warranty: 3 year limited warranty.