Summit TLA-100A Operating Manual

Summit Audio Model TLA-100A

Tube Leveling Amplifier

Operating Manual

IMPORTANT!: CAREFULLY READ THE ENTIRE INSTRUCTION MANUAL BEFORE HOOKUP OR OPERATION OF THE TLA-100A

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 TLA-100A WITH THE COVERS REMOVED.

Summit Audio, Inc. 1183 Baltic Suite A

Gardnerville, NV 89410

Doc.# 1085A01

INTRODUCTION

The Summit Audio Tube Leveling Amplifier is a hybrid of technologies. It contains both vacuum tube and solid state components. This combination of old and new technologies produces an incredibly warm and smooth sounding compression device without the inherit disadvantages of the older designs. Input connections are made using three pin XLR connectors. Features are as follows:

• EASE OF OPERATION

• “SOFT KNEE” CHARACTERISTIC

• SWITCH SELECTABLE ATTACK AND RELEASE SETTINGS

• SIDE CHAIN ACCESS

• STEREO COUPLING CAPABILITY

• BALANCED INPUT

• 990 BALANCED OUTPUT STAGE

• HAND CRAFTED IN THE USA

Having found this manual, carefully unpack the TLA-100A and its power cord. Save the carton and packing material, should it be needed. Before powering the unit read this manual, observing the cautions for HIGH VOLTAGE. Proceed by doing the following :

• Check the line voltage switch.

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

• Check for meter illumination and the pilot lamp when the unit is

powered up.

• Note that this unit is wired PIN 2 HOT.

THE CONTROLS

ATTACK SWITCH : A three position switch with fast, medium and

slow settings, which controls the time it takes the TLA-100A to respond to the input signal.

RELEASE SWITCH: Controls the time it takes the TLA-100A to

return to unity again. A three position switch with fast, medium and slow settings. The release time is also effected by the program material. The slower the release time setting, the more the program material determines the release time.

METER SWITCH: Allows monitoring the output level of the TLA-

100A or the amount of gain reduction taking place.

BYPASS SWITCH: This is a three position switch. In the bypass

position, the TLA-100A is removed from the audio path. In the middle (or in) position, the TLA-100A is switched into the audio path. In the left (or link) position, the stereo link signal is connected to its back panel connector. This allows stereo or mono operation of two units by front panel selection.

GAIN: Sets the voltage gain of the TLA-100A. It

determines the output level, which can be monitored on the meter.

GAIN REDUCTION: Sets the amount of gain reduction taking place,

and the operating point where gain reduction begins. The higher the gain reduction, the higher the ratio becomes.

POWER: A.C. power on and off.

BAL/UNBAL SWITCH: A rear panel switch which changes the output

and metering circuit for proper operation into balanced or unbalanced loads.

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