Tl-audio A3 Manuel d'utilisateur

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T L Audio
User Manual
Ebony Series A3 Mono Processor
TL Audio Limited, Letchworth, England.
Tel 01462 492090, Fax 01462 492097.
www.tlaudio.co.uk email: info@tlaudio.co.uk
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Résumé du contenu

Page 1 - T L Audio

T L Audio User Manual Ebony Series A3 Mono Processor TL Audio Limited, Letchworth, England. Tel 01462 492090, Fax 01462 492

Page 2 - CONTENTS

9 Line Input. A second 3-pin XLR connector is provided for connection to a line level source. The signal may be balanced or unbalanced, and connec

Page 3

10 - Screen = Ground. Unbalanced equipment may be interfaced with the processor insertion point, by wiring the plugs with ring and screen conne

Page 4 - INTRODUCTION

11 OPERATION Input Stage. The input gain control sets the level of the mic, line and instrument signals into the Ebony A3. The 2-posi

Page 5 - Why Tubes?

12 30dB Pad. Occasionally – when using sensitive condenser microphones – the source signal may be too loud for the input preamp. In this

Page 6 - Why Balanced I/O?

13 of an audio signal. This is known as reducing the “dynamic range” of that signal and is a powerful tool for an engineer helping to avoid overlo

Page 7 - BLOCK DIAGRAM

14 extent as the Soft knee is more gradual around the Threshold point. Unlike some compressors, the Threshold control on TLA units including the

Page 8 - PRECAUTIONS

15 Knee. The Knee switch enables the Ebony A3 to be operated in two different modes - soft Knee or hard Knee. Soft knee mode offers a ge

Page 9 - INSTALLATION

16 LF Band. The LF (Low Frequency) band of the equalizer has a shelving characteristic - i.e. it extends from the selected frequency

Page 10 - Insertion Point

17 recorder distorting. The Ebony A3 provides a further 15dB of gain at the output fader to drive digital recorders. It is important to dist

Page 11 - Ventilation

18 GETTING STARTED Connections. There are various ways that the Ebony A3 can be connected into your audio system. The three most common are:

Page 12 - OPERATION

1 CONTENTS INTRODUCTION ...

Page 13 - What is Compression?

19 The optional digital output will allow high quality 24-bit A/D conversion of the Ebony A3 mono output on a coaxial SPDIF connector. T

Page 14 - Threshold

20 each control to see how it affects the sound. If in doubt, aim to use compression gently as it can be difficult to compensate for over-compressio

Page 15 - Attack and Release

21 SPECIFICATION Mic Input: Discrete Class A circuitry from input to output (unless Tube stage In), Gain Range: +16dB to +60dB (-14dB to +30dB wi

Page 16 - Equalisation

22 Insertion Point: Pre Compressor and EQ, Balanced, separate Send and Return TRS jack sockets, Nominal Level: 0dBu, Noise -85dBu, 22Hz to 22KH

Page 17

23 Mid: +/-15dB, swept 150Hz to 7KHz, Q = 0.7, HF: +/-15dB @ 12KHz, shelving, “Pre” and “Sidechain” (Compressor) switches. Metering: Tube “Dri

Page 18 - Output Peak LED

24 SERVICE Should the unit require service, it must be taken or posted to an authorised dealer with a description of the fault. Please retain the

Page 20 - In Use

3 INTRODUCTION The TL Audio Ebony Series of audio processors are a sleek looking range of discrete Class A processors designed to heighten your au

Page 21

4 The Equaliser has 3 bands. The HF and LF controls are shelving whilst the mid control is a swept, peaking filter. Comprehensive sw

Page 22 - SPECIFICATION

5 warming to crunchy overdrive, with a single control. The signal level through the valve is displayed by the variable intensity “Drive”

Page 23 - Equaliser:

6 BLOCK DIAGRAM

Page 24 - Dimensions:

7 PRECAUTIONS The T L Audio Ebony Series units require very little installation, but like all electrical equipment, care must be taken to ensure re

Page 25 - SERVICE

8 INSTALLATION AC Mains Supply. The unit is fitted with an internationally approved 3-pin IEC connector. A mating socket with pow

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