DIGISYNTHETIC
R
DIGISYNTHETIC
Class D power amplifier with DSP process
PDS800
PDS1500
RS485 IN RS485 OUT
CH B
CH A
PDS1500
POWER
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK DO NOT REMOVE COVER ( OR BACK)
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
The lightning flash with arrowhead synbol within an equilateral
triangle is intended to alert the user to the presence of
uninsulated dangerous voltage within the product's enclosure,
that may be of sufficient magnitude to constitute a risk of electric
shock to persons.
The exclamation point within an equilateral triangle is intended
to alert the user to the presence of important operation and
maintenace (servicing) instruction in the literature
accompanying the appliance.
IMPORTANT SAFTY INSTRUCTION
Plese see below basic protection proceeding before using
1. Please read all the safty instruction before using the product.
2. This product must be earthed. If it should be malfuction or break down, grounding provides a path of least resistance for
electric current to reduce risk of electric shock.
This product is equipped with a cord having an equipment-grounding conductor and a grounding plug. The plug must be
plugged into an appropriate outlet that is properly installed and earthed in accordance with all local codes and ordinance.
DANGER- Improper connection of the equipment-grounding conductor can result in a risk of electric shock. Check with a
qualified electrician or serviceman if you are in doubt as to whether the product is properly grounded. Do not modify the plug
provided with the product - if it will not fit the outlet, have a proper outlet installed by a qualified electrician.
3. To reduce the risk of injury, close supervision is necessary when the product is used near children.
4. Do not use this product near water-for example, near a bathtub, waxhbowl, kitchen sink, in wet basement or near a
swimming pool or the lake.
5. This product may be capable of producing sound levels that colud cause permanent hearing loss. Do not operate for a long
period of time at high volume level or at a level that is uncomfortable. If you experience any hearing loss or ringing in the ears,
you should consult an audiologist.
6. This product should be located so that its location or position does not interfere with its proper ventilation.
7. This product should be located away from heat sources such as radiators, heat registers or other products that produce heat.
8. The product should be connected to a power supply only of the type described on the operation instructions or as marked on
the product.
9. This product may be equipped with a polarized line plug (one blade wider than the other). This is a safty feature. If you are
unalble to insert the plug into the outlet, contact an electrician to replace your obsolete outlet. Do not defeat the safety
prupose of the plug.
10.The power-supply cord of the product should be unplugged from the outlet when left unused for a long period of time.
When unplugging the power-supply cord, do not pull on the cord, but grasp it by the plug.
11.Care should be taken so that object do not fall and liquid are not spilled into the enclosure through opening.
12.The product should be serviced by qualified service personnel when:
A. The power-supply cord or the plug has been damaged; or
B. Objects have been fallen, or liquid has been spilled into the product; or
C. The product has been exposed to rain; or
D. The product does not appear to operate normally or exhibits a marked change in ferformance; or
E. The product has been dropped or the enclosure damaged..
13.Do not attempt to service the product beyond that described in the user-maintenance instructions. All other servicing
should be referred to qualified service personnel.
14 WARNING- Do not place objects on the product's power cord or place it in a position where anyone could trip over,
walk on or roll anything over it. Do not allow the product to rest on or to be installed over power cords of any type. Improper
installations of this type create the possibility of fire hazard and/or personal injury.
SAVE THESE INSTRUCTIONS
Brief Introduction
FEATURES
System integration design
Perfect protection: Short circuit/over load, thermal, DC
Network control function
Power
2 3 00 W(8 )
2 500 W(4 )
2
2 5 00 W(8 )
2 900W(4 )
2 1500W(2 )
800W(2 )
PDS800
PDS1500
Internal 48-bit DSP, dynamic range up to 116dB, 48kHz sampling rate A/D, D/A,
low noise and lower distortion
Special designed signal generator: Sine wave and White noise
Digital audio(S/PDIF)input/output, high quality signal distributer
(Optional)
Matrix control function, max control up to 255 units by selecting
address code
Save and recall all parameters via PC parallel port
3 bands PEQ, limiter(threshold, attack time and release time adjusted),
delay(max 7ms), phase invert, input gain control
2 crossover, range:20Hz-20kHz. Crossover frequency adjusted. Slope:
-6, -12, -18, -24 and -48dB, filter: Butterworth, Bessel, Linkwitz-Riley
2 output modes: stereo, Mono
THD+N: 0.05%, Frequency response: 20Hz-20kHz
2 x 20 LCD display with backlit
-2-
CONTENTS
1.
2.
3.
4.
Important safety instruction.....................................1
Features................................................................. 2
Contents.................................................................3
Control Panel
A. Front panel........................................................4
B. Rear panel.........................................................5
5. Installation & Operation Instruction.........................6
6.PC software Operation.............................................10
7.Specification...........................................................12
-3-
CONTROL PANEL
A.Front panel
RS485 IN RS485 OUT
CH B
CH A
PDS1500
POWER
1
5
1 CHA
The volume knob of channel A
2 CHB
The volume knob of channel B
3 485 input jack
4 485 output jack
5 2 20 LCD display
6 Power: AC 220V 10% 50Hz-60Hz
-4-
2
3
4
66
B.Rear panel
250V:T15A
FUSE: REPLACE WITH
SAME TYPE FUSE AND
RATING
SERIAL NUMBER
ATTENTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
THE COVER OR BACK
DATE CODE
ALL INPUTS
FULLY BALANCED
TIP/PIN2
RING/PIN3
SLEEVE/PIN1
AC 220V1
0% 50Hz-60Hz
6
7
CH B
OUTPUTS
CH A
7
CH B
INPUTS
CH A
8
Power Output Terminal
Output Way Connect to loudspeaker. The CHA/CHB outputs of DSP series amplifier have one
waterproof jack(PDS800,PDS1500 Class D digital power amplifier prohibit to bridge).
NOTE: The rated power and the impedance load of loudspeaker or loudspeaker
system must match the amplifier(see technical specification). Please use
the speaker cable only(normally provided with one red and black wire).
Do not use the signal cable(normally used for microphone and audio
11
equipment).
8
Input
Balanced input(0dB/30kohm): For all the loudspeaker, both CHA and CHB have one pair of balanced
input with cannon connector.
-5-
INSTALLATION & OPERATING INSTRUCTION
A. Installation Instruction
Mains power connection
Before connecting the amplifier to the mains power socket, make certain that the voltage
corresponds with that indicated on the rear of the unit(an allowance of 10% is acceptable).
Before connecting the power cable to the mains, always make certain that it is not damaged
and that there are no bare wires, always connect the power cable to the amplifier before
switching it on and only remove the cable after switching it off.
Switching on and off
In an audio system, it is always better to switch power amplifier at last and off first.
Remenber to switch off the amplifier before connecting it to or disconnecting it from other
units and to switch always on first the mixer and then the amplifier; in this manner, peaks
which are annoying and sometimes dangerous particularly for the loudspeakers enclosures
are avoided. It is normal for the LEDs to light up for a few moments when switching on.
Handling
Do not force knobs and connectors, as they could be damaged if treated with excessive
force.
Connections and prevention of possible interference.
Avoid installing your equipment near radios, televisions, etc., Since they could cause
disturbance. When connecting the other units in your sound system, watch out for to socalled
earth-loops, which can cause hum; in the event of interference, try using the EARTH switch
on the amplifier s rear panel.
Connector cables
To connect the amplifiers to the mixer, always make certain to use only signal cables
(screened cables made up of two wires plus a braid screen), not power cables(speaker
cables, normally made up of two wires, usually with a greater cross-section); to connect
the amplifier to the loudspeaker enclosures, always use power cables, not signal cables,
as in the latter case in fact, the power from the ampifiers would be partially disperse
because of the cable s smaller cross-section.
Take care of the connector cables. Always hold them by the connectors, avoiding pulling
the wire and avoid knots and twists when coiling them; this gives the advantage of
increasing their life and reliability.
Air circulation for cooling
Amplifier s correct cooling is ensured by an internal fan, the speed of which is controlled
by a special sensor(the speed is proportional to output power and therefore the temperature
generated); remember never to block the air vents located on the unit s sides in any way; the
air necessary for cooling passes through these.
If the amplifier is kept in a flight-case during use, make certain that it has sufficient
openings at both the amplifier s air vents. Avoid locating it very small spaces which don t
allow correct air circulation.
-6-
B. OPERATION INSTRUCTION
I: OFF LINE MODE:
Switch on the power, the system accesses the OFFLINE mode.
A. Adjust the volume: turn CHA/CHB button to adjust the input level of CHA/CHB.
B. Setup the amplifier ID:
Press CHA button for about 3 seconds, the LCD shows as follows:
SETUP AMPLIFIER
DEVICE
ID
NO.#1
Amplifier ID
Then, turn CHA to change the amplifier ID from 1 to 255. Press CHA button again and save
the setting.
C. Load program
Press the CHB button for about 3 seconds, the LCD shows as follows:
LOAD PROGRAM P
11
NO PEQ+XOVER+DELAY
Program Number
Program name
Then, turn CHA to select one program(1-11) . Press CHB button again, save the
setting and load the selected program. At the same time, the LCD shows: LOADING
..........Several seconds later, the LOADING is finished and the system return the menu
D. SETUP VOLUME PROTECT
Under the menu of LOAD PROGRAM , press the CHB button again for about 3 seconds and
then the LCD shows as follows:
VOLUME MUTE PROTECT
AUTO MUTE ON
Turn the CHB button to switch on/off AUTO MUTE. Then, press the CHB button again to
save the setting.
AUTO MUTE: ON. When the power is on, the volume of CHA/CHB is MUTE
automatically.
AUTO MUTE: OFF. When the power is on, the volume of CHA/CHB comes to the setting
when power was off last time.
NOTE:
1.Among 11 programs, No.11 is not used under the online mode without PEQ, XOVER and
DELAY. The other 10 programs can be saved and recalled on the online mode.
2. The volume is mute automatically after every LOAD PROGRAM.
3. When the system switches from the online mode to the offline, the system can load the
program that is saved under th online mode. At the same time, the volume is mute
automatically.
-7-
II: ONLINE MODE
1. Connect the amplifier to PC with the right cable: insert one end ot cable into parallel port
of
PC and the other end into the PC REMOTE in the front panel of amplifier. Start DSP6
testing software.
2. CONNECTION
Click the Debug button and then click Connect. Select one device number(1-255). If this
number is
the same as the amplifier ID, the LCD shows as follows:
CONNECT SUCCESSFUL
PC_CONTROL ( 1 )
At that time, the system can be tested by DSP6 software. All the functions under the offline
mode is not valid.
.
3. DISCONNECT
Click Debug button and then click Disconnect, the LCD shows as follows:
CONNECT CANCEL
MCU_CONTROL DEVICE
Then the software testing is not valid. The system return the offline mode. Regarding the
operation
of DSP-6 oftware, please refer to the online help of it.
R
DIGISYNTHETIC
#1
DSP3200
24BIT DSP STEREO POWER AMPLIFIER
#3
-8-
DSP3200
PC REMOTE
INPUT
48KHz SAMPLING RATE
CHA
OUTPUT
POWER
CHB
R
DSP3200
24BIT DSP STEREO POWER AMPLIFIER
PC REMOTE
INPUT
48KHz SAMPLING RATE
CHA
POWER
R
24BIT DSP STEREO POWER AMPLIFIER
DIGISYNTHETIC
OUTPUT
CHB
DIGISYNTHETIC
#2
PC REMOTE
INPUT
48KHz SAMPLING RATE
CHA
CHB
OUTPUT
POWER
CONNECTOR CABLE
The following diagrams illustrate the wiring of the various types of sockets that can be used
with the DSP power amplifiers.
To connect the amplifier to the mixer, always make certain to use only signal cables (screened
cables made up of two wires plus a braid screen ), not power cables (speaker cables, normally made
up of two wires, usually with a greater cross-section): the use of unscreened cables could in fact
cause annoying buzzes and background noise. We therefore always suggest the use of balanced
cables for microphones and line units whenever possible.
To connect the amplifier to the loudspeaker enclosures, always use only power cables, not
signal cables, as in the latter case in fact, the power from the amplifiers would be partially dispersed
because of the cable's smaller cross-section.
Take care of the connector cables. Always hold them by the connectors, avoiding pulling the
wire and avoid knots and twists when coiling them: this gives the advantage of increasing their life
and reliability. Check your cables periodically, making certain that they are in good condition, that
the connectors are correctly wired and contacts perfectly efficient: in fact, many problems and
setbacks (faulty contacts, ground hum, disturbance, etc.) are due to the use of unsuitable of faulty
cables.
GROUND
Balanced cannon female connector
COLD (-)
INPUT
HOT (+)
PC OUTPUT
-9-
PC Software Operation
1. MENU COMMAND
File menu
Open
Open an existing File of PC
Save
Save current setting to PC
Program manage
Read, save, delete, change the parameters of the program
And so on
Exit
Exit PC application
Mode menu
Stereo
Stereo mode, the input and output of left and right channel is
independent
mono
Mono mode, the output phase of left and right channel is same
Test menu
Sine wave
Sine wave test, generate the sine wave signal for testing the
system. Frequency range: 20Hz~20kHz
Noise
white noise test, generate the white noise signal for testing the
system
Debug menu
connect
Connect the device to PC and then controlled by PC
Disconnect
Disconnect the device away from PC
Help menu
Content
index to topics
About PDS
Version and the information of company
-10-
2. PARAMETER ADJUSTMENT
Under the main interface, click the relevant button to adjust theparameters of
Gain, PE Q, Xover, D Elay, Phase and Limiter
.
1) Gain
Click Gain button to set the level of the Left/right Channel.Volume Range:-60dB
to +6 dB.
2) PEQ
Click "PEQ" button and then the frequency, gain, Q value and flat (on/off) of 3
band PEQ can be set.
Frequen cy range: 19.7Hz ~20.2kHz
Q value range: 0.4~128
Gain: -12dB- +12dB
-11-
3. Xover
Click the XoverButton and then the parameters of filter ( slope and frequency of
HPF/LPF ) can be set. The MinimumFrequency of LPF is not lower than The maximum
frequency of HPF
.
4) Delay
Click the Delay button and then the delay unit and delay time can be set. Max
delay: 7ms.
5) Phase
Click the 180 check box to Sele ct the reverse phase.
6) Limiter
Click the Limiter button and then the threshold, hold time, attack time an d
release time can be adjusted. Used for protecting the system
.
-12-
Specification
Output power RMS
2
3 00 W(8 )
2 500 W(4 )
2 5 00 W(8 )
2 900W(4 )
SNR
>90dB
THD+N
0.08%@1 Khz
IMD
0.1% @1KHz
Frequency response
20-20kHz (+0, 0.5dB)
8
2
800W(2 )
2 1500W(2 )
PDS800
PDS1500
1W
Input sensitivity/Impedance 0 dB(0.775Vrms) / 30k
Crosstalk
>60dB
Dumping factor
>500
Phase response
-18 [email protected]
1
@1KHz/8
[email protected]
Protection
DC, overload, thermal, short-circuit protection
Standard power
220VAC
10% 50-60Hz
Size
483 384
88mm
Weight
15 kg PDS800
17 kg PDS1500
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