AMT TDD-3 is a timed digital delay intended for studio and live performances. Here's what it can do:
- Set and change the original sound delay time manually or via foot timing
- Adjust the number of delayed sound repetitions
- Form signals sent to the device's outputs in two combinations
- Send the original signal from the device's input to its outputs without processing (bypass)
- Operate using an internal battery or external power adapter
AMT TDD-3 is a timed digital delay intended for studio and live performances. Here's what it can do:
- Set and change the original sound delay time manually or via foot timing
- Adjust the number of delayed sound repetitions
- Form signals sent to the device's outputs in two combinations
- Send the original signal from the device's input to its outputs without processing (bypass)
- Operate using an internal battery or external power adapter
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Safety instructions.
IMPORTANT! There are no user-serviceable components inside the device. The
device repair must be done only by qualified specialists.
WARNING! To avoid possible malfunctions the device must not be exposed to rain
or moisture. Prevent water or other liquids from getting inside the device. Do not
place vessels filled with liquids (such as vases etc.) on top of the device.
.
This symbol points out important information related to the device
maintenance and operation which can be found in the
accompanying documentation.
Please read the instruction manual carefully.
1. Keep the manual at hand.
2. Pay close attention to the warning instructions.
3. Adhere to all maintenance instructions.
4. Use only dry cloth to clean the device which must be
disconnected from the power adapter.
5. Do not place the device next to heat sources, avoid direct
sunlight.
6. Lay the power cable in such a way that it is impossible to be
stepped on. Besides, avoid its contacts with sharp angles etc.
If the plug of the power adapter is used for the device
disconnection from mains, it must be easily accessible.
7. Use only auxiliary devices and accessories recommended by
the manufacturer.
8. Turn the device off during thunderstorms.
9. Remove the battery, if you don’t use the device for a prolonged
period of time.
10. All works related the device repair must и carried out only by
qualified servicing personnel.
11. IMPORTANT! All servicing instructions are intended exclusively
for qualified personnel. Do not carry out any repair works not
specified in the instruction manual. All repair works are to be
carried out by qualified personnel only.
Contents
Important instructions 1
Complete set 1
Introduction 2
Before you start 2
Power adapter low-voltage contacts arrangement 2
Powering the device from battery and power adapter 2
Controls 3
Top panel 3
Rear panel 3
Changing delay line modes and their indications
with TAP / SET button 3
Changing device modes and their indications with BYPASS button 3
Changing the combination of signals sent to the device’s outputs
by means of A-DIR / A+DIR switch 3
For qualified personnel only 3
Battery placing (replacing) 3
Audio connections and switching 4
Audio connections in A-DIR mode 4
Audio connections in A+DIR mode 4
Block diagram 4
References 4
¾ IMPORTANT INSTRUCTIONS!
¾ NON-OBSERVANCE OF THE FOLOWING INSTRUCTIONS MIGHT
RESULAT IN YOUR AMPLIFIER OR SPAEAKERS DAMAGE.
GUARANTEE IS VOID IF THE DAMAGES ARE CAUSED BY NON-
OBSERVANCE OF THESE INSTRUCTIONS.
¾ After transportation or storage of the device under
negative temperatures make sure to leave the device
under room temperature in its original packaging for AT
LEAST 2 HOURS!
¾ To connect the timed digital delay (further TDD-3) to other
devices use exclusively cables intended for such
connections.
¾ Under no circumstances use other types of cables such as
for speakers etc.
TDD-3 CONNECTION to power adapter:
¾ Connect the adapter only AFTER all audio connections
have been accomplished!
¾ Before connecting TDD-3 to power adapter make sure that
the casing, cables, low-voltage connector and power plug
are free from damages: no cuts, cracks, dents and so on
and are in operable condition.
¾ To connect TDD-3 to the power adapter first insert the low-
voltage connector of power adapter into corresponding
socket on the rear panel of TDD-3 and then plug the
adapter into the wall outlet.
DISCONNECTION of TDD-3 from power adapter:
¾ To disconnect TDD-3 from the power adapter first
disconnect the adapter from mains and then disconnect its
low-voltage connector from the socket on the rear panel of
TDD-3.
OMPLETE SET:
1.
TDD-3 1
2. Instruction manual 1
3. Packaging box 1
INTRODUCTION:
АМТ TDD-3 is intended for use both in studio and live performances. .
AMT TDD-3 is a timed digital delay.
Functional abilities and intuitive algorithm of the device operation allows quick
and effective sound adjustments. Wide range of adjustments and simplicity of
their change makes TDD-3 operation easy and comfortable.
AMT TDD-3 features:
9 Two modes of the original sound delay time setting: manual and foot
(quick).
9 Various ways of changing the delayed sound repetition quantity.
9 Two combinations of forming signals sent to the device outputs..
9 sending original signal from the device’s input to its outputs without
processing (BYPASS).
9 Autonomous power unit.
9 Use of external power adapter.
9 Comparatively low weight and dimensions.
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AMT TDD-3 architecture:
9 Analog input and output circuits.
9 Fully digital circuit of original sound delay.
9 High-quality analog-to-digital and digital-to-analog converters.
9 Fully functional digital control (except for the signals mixing and their levels
control).
9 Analog circuits for the signals levels and phases changing.
9 Another circuits for signals mixing.
9 Application of high-quality film capacitors.
Use only MONO-JACKS for TDD-3 connections.
Important! Like other top-class devices AMT TDD-3 is
sensitive to power source quality. We insist that you use
either the power adapter conforming to the quality
requirements (recommended adapter: АМТ PSA0109 9V/800mA) or
9V 6F22 battery.
Before you start:
For safe transportation the device was carefully packaged by the manufacturer.
However, if the cardboard packaging is damaged you should immediately inspect
the device for the absence of external damages.
¾ In case of damages do NOT SEND the device to manufacturer,
but inform the seller or transport agency, since otherwise you
will lose the right to damage compensation.
¾ In order to avoid damages during storage and transportation
always use original packing.
¾ Do not allow children to play with the device and packaging
materials.
¾ Please, recycle all packing materials in the way harmless to
the environment.
¾ In order to avoid the device overheating provide a sufficient air
flow around it; do not cover it and do not place near other heat
emitting devices.
¾ Device operation near powerful radio transmitters and sources
of high-frequency signals can result in appreciable
deterioration of sound. In this case increase the distance
between the device and the transmitter and use screened
cables for all interconnections.
CAUTION!
Please be aware that high volume can harm your hearing and / or
damage the dynamic heads of your acoustic system. Before turning
the device on rotate Volume controls to extreme left position
(counter-clockwise). Always try to adhere to moderate volume level.
Specifications:
Use only external devices and accessories recommended by the
manufacturer.
Powering the device from battery and power adapter
AMT TDD-3 is powered both by battery (DC 9V 6F22) and DC 9V external power
adapter (the required specifications are shown in Specifications).
If the device is battery powered, the device is switched on only after insertion of
MONO JACK into INPUT located on the river and all of the device. This is the
way of saving your battery resource.
When the device is powered by power adapter, the battery is turned off. In this case
the device switches to the power adapter use at once; the presence of JACK in
INPUT is not necessary.
Attention! In order to save the battery resource, it is recommended
to use external power adapter whenever possible.
Controls.
Top panel.
1. D.TIME-adjusts sound delay time.
2. E.LEVEL adjusts delayed signal level in the device's output signal.
3. OUT B / MONO В delay output.
4. OUT A – delay output.
5. INPUT - delay line input.
6. F.BACK sets the number of repetitions of the delayed signal.
7. TAP / SET- delay line operation modes indicator.
8. TAP / SET button changes delay modes.
9. BYPASS switches between “EFFECT” and “BYPASS” modes.
10. BYPASS indicator – when lit, delay line is in the “EFFECT” mode;
when off, the signals do not change (“BYPASS”)
IN
Impedance 1 MOhm
Nom. Sensitivity -10dB (250mV)
OUT A
Output impedance 10kOhm
Output signal level 0dB
OUT B
Output impedance 10kOhm
Output signal level 0dB
AD converter
Capacity 24-bit
Sampling frequency 54kHz
DA converter
Capacity 24 bit
Sampling frequency 54kHz
Signal delay turndown
13 ms-3.35 s.
Delayed signal
repetition quantity
variation range
1-
∞
Delayed signal phase
variation range
0/180 грд.
Power 6F22 battery
Voltage DC 9V
Nom. consumed current 97mA
Power adapter
(optional)
Recommended: АМТ
PSA0109 9V/800mA
Voltage DC 9V
Current 0.8A
Dimensions/ weight
NET dimensions (WхHхD). 119х55х100 mm.
NET WEIGHT (without
battery)
0.35 kg.
Overall dimensions (WхHхD). Appr. 215х88х140mm.
Gross weight (without
battery)
Appr. 0.5 kg.
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Rear panel.
11. DC 9V-for connecting power adapter cable jack.
12. A-DIR / A+DIR switch changes the device’s output fed signals
combination.
13. Bottom cover.
CAUTION! All connections are to be carried out only when
the power of the preamp has been SWITCHED OFF!
Changing delay line modes and their indications with TAP /
SET button
TDD-3 delay line has two operation modes:
1. SET-manual adjustment of delay time.
2. TAP-quick adjustment of delay time (foot timing).
Each mode is indicated by corresponding color (p.7): in SET - RED, in TAP -
GREEN. During operation the indicator’s blink intervals are equal to the set delay
time.
The selection of the necessary operating mode is done by means of TAP / SET
button (p.8). Switching between the modes is cyclical - TAP – SET – TAP –
SET… etc..
To change mode from TAP to SET push TAP/SET button and hold it for1-1.5 s
(8) or change the position of D.TIME control (1) , the indicator color (7) will change
from green to red. In SET mode delay line will change the signal delay in
accordance with time selected by D.TIME (1). The delayed and the number of its
repetitions will correspond to the settings of E.LEVEL (2)and F.BACK (6)
accordingly.
To change mode from SET to TAP briefly push TAP / SET (8), the indicator color
will change from red to green. In TAP mode you can quickly changed the delay
time by means of foot timing.
To do this push TAP / SET button twice (8) with the interval equal to the necessary
delay time. After the first push the indicator (7) will turn red-green (the device is
waiting for the second push) after the second one indicator (7) will blink blink green
again (the device will accept the signal delay interval ). If by any reason the second
push on TAP / SET button (8) does not happen for 3.35 s (the maximum possible
delay time), the device will return to previous settings in this mode. The delayed
signal level and number of its repetitions, like in SET mode, will correspond to the
values set by E.LEVEL (.2) and F.BACK controls (6) accordingly.
Changing modes and indication parameters by means of BYPASS
button.
BYPASS (9) button enables switching between “EFFECT” AND “BYPASS” modes.
Modes change cyclically “EFFECT” – “BYPASS” – “EFFECT” – … etc. In
“EFFECT” mode the indicator (10) is red meaning that the output signal is being
processed. In “BYPASS” mode the indicator (10) is off and both output signals (А
and В) are unchanged.
Changing output signals combinations by means of A-DIR / A+DIR
switch.
С помощью переключателя A-DIR / A+DIR (поз.12), расположенного на
задней панели прибора, производится выбор комбинаций сигналов,
подаваемых на выходы изделия во время работы линии задержки исходного
сигнала. Возможные комбинации сигналов на выходах прибора в зависимости
от положения переключателя “A-DIR / A+DIR” представлены в таблице 1.
By means of A-DIR / A+DIR switch (12) located on the rear panel of the device,
you can select combinations of signals fed to the outputs during the delay line
operation. Possible combinations of output signals related to A-DIR / A+DIR switch
position are shown in Table 1.
Table 1.
Output Combination of Signals
Switch positioned at A-DIR
OUT A (4) DELAY (delayed, not inverted)
OUT B / MONO (3) DIRECT (original)
Switch positioned at A+DIR
OUT A (4)
DIRECT+ inverted DELAY (original +
inverted delayed)
OUT B / MONO (3)
DIRECT+ DELAY (original + not inverted
delayed)
For qualified personnel only.
There are no user-serviceable components inside the device.
The device repair must be done only by qualified specialists
.
Battery replacement.
Use batteries exclusively recommended by the
manufacturer.
To replace the battery:
1. Remove the bottom cover of the device (13) by unscrewing 4 (four)
fastening screws.
2. Disconnect the old battery and remove it.
3. Connect a new battery and put it in place of the old one.
4. Replace the bottom cover and secure it in place by means of the 4
(four) fastening screws.
AUDIO CONNECTIONS AND SWITCHING.
CAUTION! All connections are to be carried out only
when the power of the device has been SWITCHED
OFF!
Use only MONO-JACKS for TDD-3 connections.
Possible audio connections between TDD-3 and external devices
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References.
All the mentioned names, titles and trademarks are the property of their owners.
______________________________________________________
AMT Electronics reserves the right to change the internal and external design of the device which
won’t decrease its consumer properties without preliminary notification. In this connection the
specifications and appearance of the device might differ from the ones shown in this document.
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AMT TDD-3 is a timed digital delay intended for studio and live performances. Here's what it can do:
- Set and change the original sound delay time manually or via foot timing
- Adjust the number of delayed sound repetitions
- Form signals sent to the device's outputs in two combinations
- Send the original signal from the device's input to its outputs without processing (bypass)
- Operate using an internal battery or external power adapter
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