Directed Audio 6550 Owner'S Manual Download Page 12

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Tri amp operation

(top view)

Bridged operation

(top view)

Three Channel

NNOOTTEE::

When wiring the 6550 for three channel operation, connect the left audio signal to both channels one and two RCA jacks
and the right audio signal to both channels three and four RCA jacks using RCA Y adapters.

Summary of Contents for 6550

Page 1: ...model 6550 ...

Page 2: ...2 2002 Directed Electronics Inc ...

Page 3: ...and delight the mobile sound 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 war...

Page 4: ... 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 5: ...ary bipolar outputs Thermal DC offset reverse polarity and short circuit protection Top mounted controls easily accessed for system tuning Dual continuously variable 12 dB octave two way active crossovers ch 1 6 RCA output Switchable 8 dB bass EQ function and optional remote subwoofer level control ch 5 6 Two four and six channel input allows full access to source or processor output functions Sum...

Page 6: ...ur 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 MECP...

Page 7: ...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 8: ... be off if the amplifier shuts down due to short circuit DC offset or overheating detected by the on board protection circuitry 4 R Re em mo ot te e S Su ub b L Le ev ve ell C Co on nt tr ro oll Controls the gain of channels five and six from a remote location for ease of adjustment during listening W Wa ar rn niin ng g DO NOT connect a level control knob from other manufacturers to the Remote Sub...

Page 9: ... by installing a fuse or circuit breaker of the appropriate size within 12 inches of the battery terminal connection 4 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 is not available the Remote Power Adapter P N 55000 can be used to sup...

Page 10: ... is used for mid range speakers and tweeters LPF attenuates high frequencies and is typically used for subwoofers 3 C Cr ro os ss so ov ve er r F Fr re eq qu ue en nc cy y A Ad djju us st tm me en nt t Adjusts the crossover point for the on board active crossovers 4 B Ba as ss s E EQ Q S Sw wiit tc ch h Adds 8 db of addi tional boost to channels five and six output when active 5 IIn np pu ut t P P...

Page 11: ...ier The control panel cover must be removed to gain access to the gain and filter controls Remove Install Four Allen head screws hold the control panel cover to the amplifier top panel one at each corner They can be removed with the wrench supplied in the hardware pack TOP PANEL FEATURES Stereo operation top view Four Channel Stereo with Mono Sub Six Channel Stereo ...

Page 12: ...Bridged operation top view Three Channel N NO OT TE E When wiring the 6550 for three channel operation connect the left audio signal to both channels one and two RCA jacks and the right audio signal to both channels three and four RCA jacks using RCA Y adapters ...

Page 13: ...re familiar with With the gain adjustment on the amplifier in the middle of its rotation bring up the volume on your 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 mu...

Page 14: ...s than 0 1 Total Harmonic Distortion 14 4 VDC Channel 5 6 bridged into 4 ohms from 20 250 Hz with less than 0 1 THD 14 4 VDC Dynamic power rating IHF 202 Standard at minimum load Directed model 6550 Ch 1 4 Ch 5 6 50 75 watts watts 75 125 watts watts 150x2 250 watts watts Signal to Noise Ratio Greater than 95 dB Frequency Response 20 20 000 Hz 0 5 dB Damping Factor 4 ohm Greater than 100 Crossovers...

Page 15: ......

Page 16: ...d 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 92083 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 ...

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