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© 2002 Directed Electronics, Inc 

1. RRCCAA  OOuuttppuutt  JJaacckkss - These pass

through RCA jacks can be used to
send a signal to a second amplifier.

2. RRCCAA IInnppuutt JJaacckkss - Accepts line level

outputs from head units or signal
processors at voltages between
150mV and 8 volts.

3. 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.

4. 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.

5. CCrroossssoovveerr  FFrreeqquueennccyy  AAddjjuussttm

meenntt  -

Adjusts the crossover point for the
on-board active crossovers.

6. BBaassss EEQQ SSw

wiittcchh - Adds an additional

8 db of boost to the speaker output
when on.

7. SSttaattuuss  LLEEDD - Will light GREEN to

indicate the amplifier is on and
operating normally, and will be off
if the amplifier shuts down due to
short circuit, DC offset, or over-
heating detected by on-board
protection circuitry.

FRONT PANEL CONNECTIONS/CONTROLS

OUTPUT

INPUT

BASS EQ.

FREQ

GAIN

R

L

50

MIN

500

MAX

LPF

HPF

FLAT

OFF

ON POWER

FIGURE 1—AMPLIFIER CONNECTIONS 2150 FRONT

2

7

6

5

4

3

1

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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