Summit-audio TD-100 Instrument Preamplifier and D.I. User Manual

Summit Audio Model TD-100Instrument Preamp and Tube Direct BoxSummit Audio, Inc.P.O. Box 223306Carmel, CA 93922(831) 728-1302email: sound@summitaudio

Circuit Explanation 10 Summit Audio, Inc. Circuit Explanation The Instrument Input to the TD-100 is directly connected to the Direct Output. Th

Model TD-100 Tube Direct Box 11 Electrical Connections Electrical Connections Input Unbalanced 1/4” jack Sleeve - - GroundTip - - - - (+) Sig

Specifications 12 Summit Audio, Inc. Specifications Circuit Topology High-voltage Class A Gain Switched 6dB steps, maximum gain +24dBu (at 1/4

Model TD-100 Tube Direct Box 13 Specifications Power Internal AC Supply20 watts115 volts50 or 60 HzFuse size is .5 amp, slo-blo for 100/115 VF

Summit Audio, Inc.P.O. Box 223306Carmel, CA 93922web page: www.summitaudio.comemail: [email protected] fill in and mail your warranty card t

Model TD-100 Tube Direct Box 2 Introduction The TD-100 is a single channel direct box and instrument preamp featuring a hybrid signal path util

Model TD-100 Tube Direct Box 3 Front Panel Front Panel Ground Lift Switch This two-position switch removes the third prong of the power cable

Front Panel 4 Summit Audio, Inc. Loading Control This knob controls the loading or impedance for the instru-ment input. The impedance can be se

Model TD-100 Tube Direct Box 5 Rear Panel Rear Panel A.C. Receptacle The TD-100 is factory wired for either 100, 115 or 230 Volts AC. Before c

Basic Operation 6 Summit Audio, Inc. Basic Operation Important: For proper operation of the TD-100 (or any vacuum tube device for that matter)

Model TD-100 Tube Direct Box 7 Applications Applications Live Sound A direct box or “DI” (direct input) is used to take a high impedance instr

Applications 8 Summit Audio, Inc. Using the TD-100 as an Instrument Preamp You can use the TD-100 to go directly to your recording device for a

Model TD-100 Tube Direct Box 9 Applications Using the TD-100 and TLA-50 together For a great bass or guitar channel, try using the Summit Audi