Directed Audio 1500d Owner'S Manual Download Page 1 | Manualshive

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Summary of Contents for 1500d

Page 1: ...models 750d 1500d ...

Page 2: ...o reproduction Directed Audio power amplifiers come with a two year limited warranty if installed by an authorized Directed dealer If not installed by an authorized dealer Directed Audio power amplifiers are covered by a one year parts and labor limited warranty Be sure to retain your original sales receipt and refer to the warranty section of this guide for full details about your coverage Limite...

Page 3: ... accident or unreasonable use neglect improper service or other causes not arising out of defects in materials or construction ALL WARRANTIES INCLUDING BUT NOT LIMITED TO EXPRESS WARRANTY IMPLIED WARRANTY WARRANTY OF MERCHANTABILITY FITNESS FOR PARTICULAR PURPOSE AND WARRANTY OF NON INFRINGEMENT OF INTELLECTUAL PROPERTY ARE EXPRESSLY EXCLUDED TO THE MAXIMUM EXTENT ALLOWED BY LAW AND DIRECTED NEITH...

Page 4: ...complimentary MOSFET outputs stable into one ohm loads Thermal DC offset reverse polarity and short circuit protection with status LED Master slave RCA jack functions support two amps bridged to one load Top mounted controls easily accessed for system tuning Continuously variable 18 dB octave low pass crossover Switchable 30 Hz 24 dB octave subsonic filter Switchable 8 dB bass EQ function Switchab...

Page 5: ...our power connection within 8 to 10 inches of the battery terminal Use a fuse or circuit breaker rated slightly more than the on board fuse s of the amplifier s The gauge of power wire used should take into account the total current draw of the system and the length of wire used IASCA and other auto sound competition organizations have charts available for this you can also find a chart in the MEC...

Page 6: ...urface area is what counts soldering the terminals after crimping is also recom mended 10 Due to the high frequency MOSFET switching power supply filtering the power cable is not generally required remember that the amp can t deliver full output if the power supply is restricted Proper grounding of the signal source is mandatory for the amplifier to reach its performance peak If the RCA inputs are...

Page 7: ...output sends an out of phase signal to a slave amplifier when connected in the External Synced Bridged combi nation Refer to the Combined Amplifiers section of this guide 4 S Slla av ve e M Ma as st te er r S Sw wiit tc ch h Controls whether the amplifier is a slave or master when connected in combined amplifier configurations Refer to the Combined Amplifiers section of this guide 5 R Re em mo ot ...

Page 8: ...io system battery W WA AR RN NIIN NG G Always protect this power wire by installing a fuse or circuit breaker of the appropriate size within 12 inches of the battery terminal connection 5 R Re em mo ot te e T Tu ur rn n O On n This terminal turns on the amplifier when 12 volt is applied to it Connect it to the remote turn on lead of the head unit or signal source If a 12 volt remote turn on lead i...

Page 9: ...onics Inc REM GND SUB OUTPUT BATT 30A x 2 FUSE POWER PROTECTION FIGURE 2 AMPLIFIER CONNECTIONS 750d REAR 1 5 3 6 2 REM GND SUB OUTPUT BATT 30A x 3 FUSE POWER PROTECTION FIGURE 3 AMPLIFIER CONNECTIONS 1500d REAR 4 1 5 3 6 2 4 ...

Page 10: ...S Sw wiit tc ch h Sets the cutoff point for subsonic frequencies below 30Hz Frequen cies below 30Hz will be attenuated by 24db per octave 4 B Ba as ss s E EQ Q S Sw wiit tc ch h Adds 8db of addi tional boost to the subwoofer output when active 5 S Su ub b P Ph ha as se e S Sw wiit tc ch h Changes the phase of the subwoofer output by 180 degrees 4 1 2 3 5 Control Panel Cover The gain and filter con...

Page 11: ...ingle subwoofer connection top view Two subwoofer connection top view N NO OT TE E The dual and subout terminals of the 750d 1500d are paralleled internally and the combined load impedance should be taken into consideration when connecting multiple subwoofers ...

Page 12: ...nnection diagrams N NO OT TE E One master amplifier can control up to three slave amplifiers in this combination Multiple identical master slave combinations can be added to any given system External Synced Bridged In this master slave combination the master amplifier pre amp controls remain active and the slave amplifier pre amp is bypassed This allows the master amplifier to control gain filter ...

Page 13: ...te e S Su ub b L Le ev ve ell C Co on nt tr ro oll Connect the Remote Sub Level Control to the master amplifier only The master amplifiers subwoofer gain is used to set the overall gain for all synced amplifiers then the Remote Sub Level Control can adjust the gain of all synced amplifiers 4 S Siig gn na all C Co on nn ne ec ct tiio on n Connect an RCA cable between the SYNC OUT RCA jack of the ma...

Page 14: ...of the 750d 1500d are paralleled inter nally and the combined load impedance should be taken into consideration when connecting multiple subwoofers SUB LEVEL MIN MAX INPUT I O R L SLAVE MASTER REMOTE SLAVE IN SYNC OUT BRIDGE OUT INPUT I O R L SLAVE MASTER REMOTE SLAVE IN SYNC OUT BRIDGE OUT 2 2 Do Not Use 3 Do Not Use Master Slave 4 1 Do Not Use ...

Page 15: ...trol is used to set the overall gain for both amplifiers and then the Remote Sub Level control can adjust the gain of both amplifiers 4 S Siig gn na all C Co on nn ne ec ct tiio on n Connect an RCA cable between the BRIDGE OUT RCA jack of the Master amplifier and the SLAVE IN RCA jack of the Slave amplifier as shown in Figure 6 5 S Su ub bw wo oo of fe er r S Sp pe ea ak ke er r C Co on nn ne ec c...

Page 16: ...d be taken into consideration when connecting multiple subwoofers The audio signal to the slave amplifier is 180 out of phase The subwoofer s negative terminal must be connected to the slave amplifier s positive terminal SUB LEVEL MIN MAX INPUT I O R L SLAVE MASTER REMOTE SLAVE IN SYNC OUT BRIDGE OUT INPUT I O R L SLAVE MASTER REMOTE SLAVE IN SYNC OUT BRIDGE OUT 2 2 Do Not Use 3 Do Not Use Master ...

Page 17: ... on nt tr ro oll The Remote Sub Level Control cable can be divided several times to connect to each master amplifier This can be accomplished by using one or more Directed Remote Sub Level cable splitters Standard single to double phone line splitters and accessories from a local electronics store can also be used For systems with more than two master slave combinations use multiple single to doub...

Page 18: ...r head unit to the 3 4 volume setting or until you start to hear distortion or clipping If you hear distortion before you reach the 3 4 volume setting of your head unit reduce the gain setting on the amplifier and start to raise the head unit volume again When you can listen to the music at or slightly above 3 4 on your head unit without audible distortion slowly raise the gain of the amplifier un...

Page 19: ...er 60A 90A Minimum Cable Requirements AWG 8 4 Per amp trunk mounted 750 1500 watts watts 400 800 watts watts 0 6 THD 0 7 600 1100 watts watts 0 8 THD 0 9 800 1600 watts watts 1200 2200 watts watts RMS continuous power driven into 4 ohms from 20 to 250 Hz 14 4 VDC at rated power load RMS continuous power driven into 2 ohms from 20 to 250 Hz 14 4 VDC at rated power load RMS continuous power driven i...

Page 20: ... electronic technology Directed is ISO 9001 registered Directed is committed to delivering world class quality products and services that excite and delight our customers Directed Electronics Inc Vista California 92081 www directed com Directed is a proud member of Quality Directed products are sold and serviced throughout North America and around the world Call 800 274 0200 for more information a...

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