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DIGITAL POWER AMPLIFIER

3

DPA-300D/600D, DPA-300DO/600DO

Features

Features

- High Performance Class-D Power PA Amplifier

High performance 2CH Class-D Power amplifiers produce 300/600W rated power each channel.

- Emergency Power Back Up (24VDC) capability

The unit operates  on a 24VDC battery power supply for emergency back up without UPS (DPA-DO models are
not included with Emergency Power Back Up (24VDC)).

- Rated Output Power Via DC Backup Supply

Output power can be maintained as AC power when 24VDC power supplied.

- Advanced Power Circuitry Design

The  combination  Class-D  type  amplification  circuitry  combined  with  SMPS  creates  a  high  efficiency  amplifier
offering reduced power consumption and low heat dissipation and weight.

- High Quality Sound Design

The total harmonic distortion is reduced to less than 0.03% THD, with a high signal to noise S /N ratio of over
103dB

- Advanced Protection Circuitry

Advanced  protection  circuitry  guards  against  overheating,  shorted  outputs,  DC  output,  overloads  and
mismatched power

- A Variety of operation Indicators

Signal, -10dB signal level, Clip, Protection and system power (AC, DC, STBY) indicators.

- Balanced Input

This connection is used to ensure the lowest noise operation which eliminates the common noise from the cable.

- Remote Power ON/OFF

The remote power allows the amplifier to be turned on or off from a distance or other device via dry contact
closure.

- PRIORITY Input

PGM is interrupted and over ridden by the Priority input, when a contact closure is received on the PRI select
terminal. This is Ideal for Emergency message broadcasting applications.

Accessories

AC Power Cord x1
6P Terminal Block x1
4P Terminal Block x1
2P Terminal Block (Ac Remote power) x1
8P Terminal Block x1
Operation Manual x1
Screws for Rack mount Bracket x4

Summary of Contents for DPA-300D

Page 1: ...Manual Rack mount products in the Western Hemisphere North America South America and the Caribbean do not have handles installed due to customer preference Digital Power Amplifier DPA 300D 600D DPA 30...

Page 2: ...ction It has heed to be easy to disconnect the device To disconnect the device from power separate AC input cable from inlet or unplug the AC Cord CAutION These servicing instructions are for use by q...

Page 3: ...nts Unpacking 2 Installation Environment 2 Important Safety Instructions 2 Features 3 Front Panel 4 Rear Panel 5 Speaker Connection 7 Applications 8 Block Diagram 9 Specifications 13 Service Procedure...

Page 4: ...heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wide...

Page 5: ...duced to less than 0 03 THD with a high signal to noise S N ratio of over 103dB Advanced Protection Circuitry Advanced protection circuitry guards against overheating shorted outputs DC output overloa...

Page 6: ...he amplifier s output signal levels SIG Green 10dB Green Clip Yellow PROTECT Red 3 VOLUME CONTROL CH1 CH2 Turn the volume controls clockwise to increase gain and counterclockwise to decrease gain 4 CO...

Page 7: ...Air flow is front to back DO NOT block front or rear air vents 5 PRIORITY INPUT AND CONTACT CLOSURE Each amplifier module has 2 audio inputs The Primary program input PGM and Priority input PRI The p...

Page 8: ...6 DPA 300D 600D DPA 300DO 600DO 8 OUTPUT VOLTAGE SELECTOR This two position switch is used to select a output voltage 100V or 70V 9 PGM INPUT CONNECTOR CH1 CH2 Balanced 3 pin terminal block connector...

Page 9: ...the rated impedance indicated Caution 1 Make sure that the total impedance does not equal or less than the rated impedance 2 Do not connects a speaker has lower impedance than rated impedance It may...

Page 10: ...DIGITAL POWER AMPLIFIER 8 DPA 300D 600D DPA 300DO 600DO Applications Applications G G CH 2 CH 1 PGM INPUT CH 2 CH 1 OUTPUT AC POWER REMOTE DPA 300D 600D...

Page 11: ...IN 0 3dB 100 70 Vrm PROTECTION OCP OTP CLIP YEL SIG GRN 10dB GRN 100 70V SWITCH PGM PRI TOGGLE 2nd ORDER LPF FAN FAN CONTROL FAN START 65 PROTECT MORE THAN 85 TEMPERATURE DETECTION HV HV PGM1 PGM1 GND...

Page 12: ...3dB 100 70 V PROTECTION OCP OTP CLIP YEL SIG GRN 10dB GRN 100 70V SWITCH PGM PRI TOGGLE 2nd ORDER LPF FAN FAN CONTROL FAN START 65 PROTECT MORE THAN 85 TEMPERATURE DETECTION HV HV PGM1 PGM1 GND 2 PWM...

Page 13: ...AN FAN CONTROL FAN START 65 PROTECT MORE THAN 85 TEMPERATURE DETECTION HV HV PGM1 PGM1 GND 2 PWM PGM1 VOLUME SPEAKER OUTPUT 0dB 12dB LPF 35kHz GAIN 0 3dB PROTECTION OCP OTP CLIP YEL SIG GRN 10dB GRN 1...

Page 14: ...GRN 100 70V SWITCH PGM PRI TOGGLE 2nd ORDER LPF FAN FAN CONTROL FAN START 65 PROTECT MORE THAN 85 TEMPERATURE DETECTION HV HV PGM1 PGM1 GND 2 PWM PGM1 VOLUME SPEAKER OUTPUT 0dB 12dB LPF 35kHz GAIN 0 3...

Page 15: ...d Power Less than 0 1 1 3 Power Less than 0 03 S N 20kHz LPF More than 103dB Frequency Response 1W 3dB 50Hz 20kHz Operating Temperature 10 C 40 C Operating Power 120VAC 60Hz 220 240VAC 50 60Hz 24VDC P...

Page 16: ...V 10k THD AES17 Rated Power Less than 0 1 1 3 Power Less than 0 03 S N 20kHz LPF More than 103dB Frequency Response 1W 3dB 50Hz 20kHz Operating Temperature 10 C 40 C Operating Power 120VAC 60Hz 220 24...

Page 17: ...DIGITAL POWER AMPLIFIER 15 DPA 300D 600D DPA 300DO 600DO DIMENSIONS DPA 300D DPA 300DO 600DO 440 367 482 88...

Page 18: ...DIGITAL POWER AMPLIFIER 16 DPA 300D 600D DPA 300DO 600DO DPA 600D 440 420 482 88...

Page 19: ...st is available by contacting your warranty provider Variations and Options Variations and Options Variations Products supplied through legitimate sources are compatible with local AC power requiremen...

Page 20: ...pany but rather a global company that is truly international in scope with factories and offices in Korea and China and sales and marketing operations located in Japan Europe and the U S A With more t...

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