SPL TDx Users Manual
Manual
TDx
Transient Designer 500 Series Rack Module
Note:
Click on a section or page number to immediately jump to that location.
Content
Content 2
Version 1.0 – 02/2016 3
Scope of Delivery 4
Scope of Delivery 4
Measurement & Weight 4
Introduction 5
Welcome 5
Specifications 6
General 6
Input 6
Output 6
Installation 7
Installation into a 500 series rack 7
Control Elements 8
On/Bypass 9
ATTACK 10
SUSTAIN 11
Applications 15
Drums & Percussions 16
Drums: Ambience 18
Guitars 19
Bass: Staccato vs. Legato 20
Backings 20
Keyboards & Sampler 21
Post Production 21
Mastering 21
Technolog y 22
Differential Envelope Technology (DET) 22
The ATTACK Control Circuitry 23
The SUSTAIN Control Circuitry 24
Symbols 25
Security Advices 26
Declaration of CE Conformity 31
Notes on Environmental Protection 32
MIX 12
OUTPUT 13
Signal-LED 14
TDx
Contact 33
2
Version 1.0 – 02/2016
Developer: Wolfgang Neumann
This manual contains a description of the product Transient Design TDx. In no way it
represents a guarantee of particular characteristics or results of use.
The information in this document has been carefully compiled and verified and, unless
otherwise stated or agreed upon, correctly describes the product. Sound Performance
Lab (SPL) continuously strives to improve its products and reserves the right to modify
the product described in this manual at any time without prior notice.
This document is the property of SPL and may not be copied or reproduced in any manner, in part or fully, without prior authorization by SPL.
TDx
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Scope of Delivery
TDx – 500 Series Rack Module
Quickstart/Product Overview
Measurement & Weight
Singe Slot 500 Series Rack Module
Weight: 1.53 lbs (0.65 kg)
Please keep the original packaging. In case of a service procedure the original packaging ensures a
safe transport. It also serves as a safe packaging for your own transports if you do not use special
transportation cases.
TDx
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Welcome
and thank you for purchasing the Transient Designer TDx. With the Transient Designer
TDx the level-independent processing of signal paths is making headway into the world
of 500 series rack modules. However, the possibilities for studio and live application
are seemingly endless.
Technical foundation is SPL’s Differential Envelope Technology (DET) which allows level-independent dynamic processing by calculating differences in generated envelopes.
Introduction
In this it differs in principle from common compressors that are based upon processing
signals of a specific level. These envelopes are always tracking the curve of the original
signal to provide optimal results in every moment of the music.
Thanks to the level-independent processing DET the setting of a threshold is needless.
Other common controls of dynamic processing, such as ratio or parameters for time-constants are automated and optimized adaptively in a musical manner according to the
characteristics of the input signal.
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General
Frequency Response: 10 Hz - › 100 kHz
Noise: -93 dBu (A-weighted)
Dynamic Range: 116 dB
Common Mode Rejection Ratio: > 80 dB (at 1 kHz)
Total Harmonic Distortion and Noise (THD+N): 0.03% (0 dBu input level/unity gain)
Current consumption: 30 mA at +/- 16 Volt DC
Specifications
Input
Electronically balanced
Impedance: approx. 20 kohms
Max. Input Level: +22 dBu
Output
Electronically balanced
Impedance: approx. 150 ohms
Max. Output Level: +22 dBu
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Installation into a 500 series rack
• Please read the manual that comes with the 500 series rack. You should gain all
information necessary for the installation process.
• Your 500 series rack should be switched off and the power cable should not be
connected.
• Insert the TDx module into a free slot of your rack. Make shure the connector of the
TDx is precisely aligned with the rack connector.
Installation
• Press the TDx module carefully into the rack connector and tighten the screws.
• Connect the TDx module with your audio environment using the connections from
your 500 series rack.
• Insert the power cable to the 500 series rack and switch it on.
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Control Elements
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On/Bypass
With the ON/Bypass button you can switch the TDx into the signal path. If the button is
in position “On”, the TDx is active. If the button is in position “Bypass”, the audio signal
passes through unprocessed.
Control Elements
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ATTACK
With the ATTACK control you can amplify or attenuate the attack of a signal by up to
15 dB. For more information on the operation of the ATTACK control please refer to “The
ATTACK Control Circuitry” on page 23.
The ATTACK control circuitry uses two envelope generators. One follows the shape of the
original curve and adapts perfectly to the dynamic gradient. The second envelope generator produces an envelope with a slower attack. From the difference of both envelopes
the VCA control voltage is derived. Positive ATTACK values emphasize attack events,
Control Elements
negative ATTACK values smooth out the attack envelopes of sound events.
For an extensive description and explanation of the possible applications of the ATTACK
control please refer to “Applications” on page 15 cont.
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