Summit Audio TPA-200B User Manual

Summit Audio Model TPA-200B

Dual Tube Preamplifier

Operating Manual

IMPORTANT!: CAREFULLY READ THE ENTIRE INSTRUCTION MANUAL BEFORE HOOKUP OR OPERATION OF THE TPA-200B.

WARNING!: HIGH VOLTAGE. THIS UNIT CONTAINS NO USER SERVICEABLE PARTS. SERVICING SHOULD ONLY BE DONE BY QUALIFIED SERVICE PERSONNEL OR FACTORY. DO NOT OPERATE THE TPA-200B WITH THE COVERS REMOVED.

Summit Audio

1183 Baltic Suite A

Gardnerville, NV 89410

Product Introduction

The Summit Audio TPA-200B uses vacuum tube and solid state technologies to produce the warm sound associated with tubes with the reliability provided by solid state devices. The TPA-200B is designed to work in a number of different applications with the different types of inputs: a microphone input, line level input, and a front panel Hi-Z input. Input connections are made by using three pin balanced XLR jacks, balanced TRS ¼” jacks, and the front panel unbalanced ¼” jack.

Features include:

Easy operation

Controllable sound, continuously variable from “clean” to “overdrive”

Jensen input transformers

Line level balanced input

Mic level balanced input

Phantom power

Front panel Hi-Z input

990 balanced output stage

Overload and overdrive indicators

Polarity reversal

-15dB and –25dB pads

Hand crafted in the USA

Having found this manual, carefully unpack the TPA-200B and it’s power cord. Save the carton and packing material should it be needed for future shipping. Before powering the unit, read this manual. Please observe the cautions for HIGH VOLTAGE. Proceed by doing the following:

1. Set the line voltage switch to the proper position

2. Determine the proper fuse size by referring to the specifications

Check for pilot illumination when powered up.

1. LINE/MIC:

THE CONTROLS

Selects between the balanced XLR mic input and the balanced ¼” TRS

line input on the back of the TPA-200B.

2. PAD:

3. PHASE REVERSE:

4. INPUT GAIN:

5. OUTPUT GAIN:

6. OL/OD INDICATORS:

Switches the pad between off, -15dB and –25dB if the output gain of the

microphone or line input has too much gain and is overdriving the input of the TPA-200B.

This switches the polarity or phase on the microphone input and line input from normal to 180 degrees out of phase.

This completely variable potentiometer changes the input gain for the TPA-200B. Use in conjunction with the output gain to get the desired amount of tube saturation in the signal. Turning the output gain down and the input gain up increases the amount of tube distortion.

This completely variable potentiometer changes the output gain for the TPA-200B. Use in conjunction with the input gain to get the desired amount of tube saturation in the signal. Turning the output gain up and the input gain down decreases the amount of tube and will give you the cleanest possible sound.

.These LEDs will light to indicate overdrive (OD, amber light) when the tube is working at it’s optimum level and overload (OL, red light) when the tube is being distorted.

7. HI-Z INPUT:

8. PHANTOM POWER:

9. POWER:

This is an unbalanced, high impedance input for musical instruments such as guitar, bass, and keyboards. (Try plugging in an electric guitar, turning the output gain low and the input gain high to get a great tube distortion.)

Switches on +48V phantom power for BOTH microphone inputs for use with condenser microphones.

Switches the TPA-200B on and off, indicated by the red light above the phantom power switch.

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