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10

© 2003 Directed Electronics, Inc 

TOP PANEL CONTROLS

GAIN

GAIN

FREQ

FREQ

MIN

50Hz

MAX

500Hz

MIN

50Hz

MAX

500Hz

LPF

LPF

HPF

HPF

FLAT

FLAT

FLAT

BASS EQ

BASS EQ

OFF

OFF

ON

ON

REAR

FRONT

FIGURE 3—AMPLIFIER CONTROLS 600/4 TOP

4

1. IInnppuutt   GGaaiinn   AAddjjuussttm

meenntt - Controls

amplifier sensitivity and is used to
match the input level of the ampli-
fier to the output level of the signal
source.

2. CCrroossssoovveerr   SSeelleeccttiioonn   SSw

wiittcchh -

Controls the type of filter for the on-
board active crossovers. FLAT does
not attenuate any 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 typically used for
subwoofers.

3. CCrroossssoovveerr   FFrreeqquueennccyy   AAddjjuussttm

meenntt -

Adjusts the crossover point for the
on board active crossovers.

4. BBaassss  EEQQ  SSw

wiittcchh - Adds an additional

8 db of boost to the speaker output
when on.

1

3

2

TOP PANEL FEATURES

Control Panel Cover

The gain and filter controls are located
under a control panel cover on top of
the amplifier. 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.

Summary of Contents for 600/4

Page 1: ...model 600 4 ...

Page 2: ...2 2003 Directed Electronics Inc ...

Page 3: ...nthusiast 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 fo...

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: ...ES High speed MOSFET switching power supply and complimentary bipolar outputs Four channel architecture supports up to six channel use 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 Dual switchable 8 dB bass EQ func tion Summed stereo full range RCA output jacks...

Page 6: ...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 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: ... installing a fuse or circuit breaker of the appropriate size within 12 inches of the battery terminal connection REAR PANEL CONNECTIONS 1 R RC CA A IIn np pu ut t J Ja ac ck ks s Accepts line level outputs from head units or signal processors at voltages between 150mV and 8 volts 2 R RC CA A O Ou ut tp pu ut t J Ja ac ck ks s These pass through RCA jacks can be used to send a signal to a second a...

Page 9: ...55000 can be used to supply a remote turn on signal DO NOT connect this terminal to constant 12 volt 5 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 of the same gauge or larger than the 12 volt power wire The chassis connection point should be scraped free of paint and dirt Use o...

Page 10: ...r systems HPF attenuates low frequencies and 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 an additional 8 db of boost to the speaker out...

Page 11: ...as shown in this 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 top view Two Channel Stereo Four Channel Stereo Simultaneous Two Channel Stereo with Mono Sub ...

Page 12: ... 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 13: ...al Harmonic Distortion 14 4 VDC Dynamic power rating IHF 202 Standard bridged into 4 ohms Directed model 600 4 75 watts 20 125 watts 250x2 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 Crossover Switchable high or low pass 12 dB octave continuously variable from 50 to 500Hz Bass Equalization 8 dB centered at 40Hz Input I...

Page 14: ... field of advanced 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 ...

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