models
A502A404
OWNER’SMANUAL
Page 1: ...models A502 A404 OWNER S MANUAL ...
Page 2: ... enthusiast with years of high quality audio 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 ...
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 NEITHE...
Page 4: ... or adjusting your audio system WARNING FEATURES High speed MOSFET switching power supply and complimentary bipolar outputs Stereo mono or simultaneous stereo mono operation Thermal DC offset reverse polarity Selectable 12dB octave two way crossover Switchable 8 dB bass EQ function Variable input sensitivity optimizes match with different signal sources Chrome plated wire terminals and RCA connect...
Page 5: ... your 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 M...
Page 6: ...surface 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 ar...
Page 7: ...peaker systems HPF attenuates low frequencies and is used for mid range speakers and tweeters LPF attenuates high frequencies and is used for subwoofers speakers 5 B Ba as ss s E EQ Q S Sw wiit tc ch h Adds an additional 8 db of boost to the speaker output when on 6 L Liig gh ht t B Ba ar r F Fa an n Allows connection of an o op pt tiio on na all LED light bar or o op pt tiio on na all additional ...
Page 8: ...within 12 inches of the battery terminal connection 3 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 4 G Gr ro ou un nd d Connect this terminal directly to the sheet metal chassis of the vehicle using the shortest wire necessary to make this connection Always use wire ...
Page 9: ...FIGURE 4 AMPLIFIER CONNECTIONS A404 REAR wire DO NOT connect this terminal directly to the vehicle battery ground terminal or any other factory ground points 5 S Sp pe ea ak ke er r T Te er rm miin na alls s Connect the speakers to these terminals Refer to the Wiring Diagram section of this guide ...
Page 10: ...ed Electronics Inc SPEAKER WIRING DIAGRAMS A502 L CH R CH B R I D G E D L CH R CH INDUCTOR CAP CAP SUB Stereo operation top view Mono operation top view Simultaneous stereo mono operation top view B R I D G E D L CH R CH ...
Page 11: ...s diagram connect right channel RCA cables to the front inputs of the amplifier and left channel RCA cables to the rear inputs of the amplifier For summed subwoofer applications connect RCA cables per the input jack marking Stereo Operation 2 Channel top view B R I D G E D L CH R CH B R I D G E D L CH R CH FRONT RIGHT REAR LEFT ...
Page 12: ...ous Stereo top view B R I D G E D L CH R CH INDUCTOR CAP CAP SUB B R I D G E D L CH R CH INDUCTOR CAP CAP SUB REAR FRONT Stereo Operation 4 Channel top view B R I D G E D L CH R CH B R I D G E D L CH R CH FRONT LEFT REAR LEFT REAR RIGHT FRONT RIGHT ...
Page 13: ...1 13 3 2004 Directed Electronics Inc B R I D G E D L CH R CH B R I D G E D L CH R CH SUB REAR LEFT REAR RIGHT 2 Channel Stereo with Mono Sub top view ...
Page 14: ...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 until distortion is heard then back off the gain until the ...
Page 15: ... assembly and connect them to the 4 pin LED FAN input connector Refer to the LED FAN harness diagram given earlier in this manual N NO OT TE E If the optional fan IS NOT being used it is recommended that the second LED tube be wired to this circuit If the optional fan is being used it is recommended that the second LED tube be wired in parallel with the first LED tube Directed Amplifier VARAD Cros...
Page 16: ...hms and 1 THD N Signal to Noise Ratio 70 dBA reference 1 Watt into 4 ohms Additional Power 125 Watts RMS x 2 at 2 ohm and 1 THD N A A4 40 04 4 Power Output 45 Watts RMS x 4 at 4 ohms and 1 THD N Signal to Noise Ratio 80 dBA reference 1 Watt into 4 ohms Additional Power 50 Watts RMS x 4 at 2 ohm and 1 THD N ...
Page 17: ...or low pass 12 dB octave 100Hz Bass Equalization 8 dB centered at 40Hz 8 dB centered at 40Hz Input Impedance 20K ohms 20K ohms Input Sensitivity Variable from 250 mV to 7 5 volts Variable from 250 mV to 7 5 volts Output Impedance 2 to 8 ohms stereo 4 to 8 ohms bridged 2 to 8 ohms stereo 4 to 8 ohms bridged Supply Voltage 10 to 16 VDC 10 to 16 VDC Fusing and Power 30A 30A Minimum Cable Requirements...
Page 18: ... patents in the field of advanced electronic tech nology 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 Quality Directed products are sold and serviced throughout North America and around the world Call 800 274 0200 for more informati...
