DUAL POWER AMPLIFIERS
DA-250D CEDA-250DH CE
DA-250D
DA-250DH
Thank you for purchasing TOA's Dual Power Amplifier. Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
OPERATING INSTRUCTIONS
Page 1: ...DA 250D CE DA 250DH CE DA 250D DA 250DH Thank you for purchasing TOA s Dual Power Amplifier Please carefully follow the instructions in this manual to ensure long trouble free use of your equipment O...
Page 2: ...7 1 Switch Settings and Speaker Connections 7 1 1 When using the DA 250D 10 7 1 2 When using the DA 250DH 11 8 REMOVABLE TERMINAL PLUG CONNECTION 12 9 INPUT SENSITIVITY SETTING 13 10 PROTECTION OPERAT...
Page 3: ...unit case as there are high voltage components inside the unit Refer all servicing such as modification inside the unit to qualified service personnel Do not place cups bowls or other containers of l...
Page 4: ...TOA be sure to use the screws with a diameter of over 5 mm and length of over 12 mm to mount the unit When connecting the unit s power cord to an AC outlet use the AC outlet with current capacity all...
Page 5: ...er Their wide range of applications include stores and permanent sound systems 3 FEATURES 1U rack mounting size Low power consumption and light weight An input signal to Channel 1 can be routed to bot...
Page 6: ...y clean the filter located inside the ventilation panel on the unit s front panel If the filter becomes clogged heat will become trapped inside the enclosure Install the unit in locations where the te...
Page 7: ...d 2 above and below every 5 units Robust structure is one of the unit s main features However if the strength is particularly needed when installing the unit in the rack use a supporting runner for th...
Page 8: ...nput signal level exceeds about 20 dB Output indicator OUTPUT Lights yellow when an output level exceeds about 1 W at an 8 load DA 250D or 40 load DA 250DH Peak indicator PEAK Lights red when an outpu...
Page 9: ...ut mode Set BRIDGE switch to ON Note Be sure to first turn off the power switch when changing the BRIDGE switch settings 10 CH 1 mode ON OFF switch PARALLEL ON OFF Setting this switch to ON pressed in...
Page 10: ...put terminals 4 4 Replace the output terminal cover in place Be sure to replace the unit s terminal cover after connection completion Because high voltage is generated at the speaker output terminals...
Page 11: ...F Setting Switch CH 1 mode ON Setting CH1 CH1 CH2 CH2 1 input 2 outputs 2 inputs 2 outputs factory preset 40 40 40 40 Speaker output terminals Switch BRIDGE CH 1 mode ON OFF Setting 8 CH1 CH1 CH2 CH2...
Page 12: ...sens Terminal screw Slotted screwdriver Shielded cable Removable terminal plug Hot Cold Earth 1 1 2 Bit shape 3 mm 8 REMOVABLE TERMINAL PLUG CONNECTION Cautions Be sure to use shielded cables for audi...
Page 13: ...1 and 2 are bridge connected Input sensitivity setting for the CH2 is disabled Step 3 Replace the detached top cover When set to 4 dB When set to 10 dB 10 dB 4 dB 10 dB 4 dB Jumper socket Jumper socke...
Page 14: ...normal operation Short circuit Current limiter activated Load is disconnected Protection indicator lights Check speakers and lines for short circuit Turn off the power switch Correct the load then sw...
Page 15: ...ventilation panel as shown in the figure Step 3 Detach the filter inside the ventilation panel Step 4 Clear the filter of dust Step 5 Replace the filter and ventilation panel Ventilation Panel 2 3 Fi...
Page 16: ...Current Limiter Short Detector Protection Circuit Current Limiter Short Detector Protection Circuit 13 BLOCK DIAGRAMS 13 1 DA 250D 13 2 DA 250DH PARALLEL switch H C CH 1 INPUT E H C CH 2 INPUT E OUTPU...
Page 17: ...17 14 DIMENSIONAL DIAGRAM Unit mm 401 8 371 22 5 482 465 442 31 8 44...
Page 18: ...over 100 C 100 dB A weighted 70 dB A weighted Power blue x 1 Input green x 2 Output yellow x 2 Peak red x 2 Protect red x 2 Forced air cooling 10 C to 40 C Under 90 RH no condensation Panel Aluminum b...
Page 19: ...stance between barriers 8 8 mm 50 20 000 Hz 3 dB 0 dB 0 1 1 kHz 0 3 100 20 000 Hz Protection against excessive current flow due to overload short circuit unusual DC voltage output and heat sink temper...
Page 20: ...raceability Information for Europe EMC directive 2004 108 EC Manufacturer TOA Corporation 7 2 1 Minatojima Nakamachi Chuo ku Kobe Hyogo Japan Authorized representative TOA Electronics Europe GmbH Sued...
