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© 2002 Directed Electronics, Inc 

speaker load, the more heat is
generated. For low impedance
speaker applications or restricted
ventilation installations, an external
cooling fan may be advisable.

9. Battery and ground connections to

the vehicle should be made with
crimped ring terminals of the appro-
priate size (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 are not grounded
adequately via the signal source,
electrical noise from the vehicle
may be picked up in the system.

Summary of Contents for 2150

Page 1: ...model 2150 ...

Page 2: ...amplifiers will excite 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 recei...

Page 3: ...ccident 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 NEITHER...

Page 4: ...ES High speed MOSFET switching power supply and complimentary bipolar outputs Stereo mono or simultaneous stereo mono operation Thermal DC offset reverse polarity and short circuit protection Continuously variable 12 dB octave two way active crossover Switchable 8 dB bass EQ function Buffered stereo full range RCA output jacks Variable input sensitivity optimizes match with different signal source...

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: ...y frequencies and is for full range speaker 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 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 6 B Ba as ss s E EQ Q S Sw wiit tc ch h Adds an ad...

Page 8: ...se 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 lead is not avail able a Remote Power Adapter P N 55000 can be used to supply a remote turn on si...

Page 9: ...SPEAKER WIRING DIAGRAMS 9 2002 Directed Electronics Inc Stereo operation top view Mono operation top view Simultaneous stereo mono operation top view ...

Page 10: ... proper signal match for clean quiet ampli fier operation For full range and simultaneous stereo mono bass applications start by playing some music you are 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 ...

Page 11: ...less than 0 1 Total Harmonic Distortion 14 4 VDC Dynamic power rating IHF 202 Standard bridged into 4 ohms 50 watts 75 watts 150 watts 200 watts Signal to Noise Ratio Greater than 95 dB Frequency Response 20 20 000 Hz 0 5 dB Damping Factor 4 ohm Greater than 200 Crossover Switchable high or low pass 12 dB octave continuously variable from 50 to 500 Hz Bass Equalization 8 dB centered at 40Hz Input ...

Page 12: ...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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