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© 2003 Directed Electronics, Inc 

TOP PANEL CONTROLS

GAIN

FREQ

MIN

50Hz

MAX

500Hz

LPF

HPF

FLAT

BASS EQ

OFF

ON

FIGURE 3—AMPLIFIER CONTROLS 500/2 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 crossover. 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 used for
subwoofers speakers.

3. CCrroossssoovveerr   FFrreeqquueennccyy   AAddjjuussttm

meenntt -

Adjusts the crossover point for the
on board active crossover.

4. BBaassss  EEQQ  - Adds 8 db of additional

boost to the speaker output when
on.

1

3

2

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.

TOP PANEL FEATURES

Summary of Contents for 500/2

Page 1: ...model 500 2 ...

Page 2: ...ards of perfor mance reliability and affordability in the mobile electronics industry Featuring high efficiency MOSFET power supplies flexible on board crossovers and state of the art audio design Directed Audio power 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 ...

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: ...EATURES Dual high speed MOSFET switching power supplies and complimentary bipolar outputs Stereo mono or simultaneous stereo mono operation Thermal DC offset reverse polarity and short circuit protection Top mounted controls easily accessed for system tuning Continuously variable 12 dB octave two way active crossover Switchable 8 dB bass EQ function Buffered stereo full range RCA output jacks Gold...

Page 5: ...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 6: ...R CONNECTIONS 500 2 FRONT 2 1 3 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 D...

Page 7: ...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 signal DO NOT connect this terminal to constant 12 volt 5 G Gr ro ou un nd d Connect this terminal dir...

Page 8: ...ow frequencies and is used for mid range speakers and tweeters LPF attenuates high frequencies and is used for subwoofers speakers 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 crossover 4 B Ba as ss s E EQ Q Adds 8 db of additional boost to the speaker output when on 1 3 2 Control Panel Cover The gain an...

Page 9: ...SPEAKER WIRING DIAGRAMS 9 2003 Directed Electronics Inc Stereo operation top view Mono operation top view Simultaneous stereo mono operation top view ...

Page 10: ...roper 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 3 ...

Page 11: ...l Harmonic Distortion 14 4 VDC Dynamic power rating IHF 202 Standard bridged into 4 ohms 125 watts 200 watts 400watts 550 watts Directed model 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 Im...

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 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 ...

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