background image

SPECIFICATIONS

Analog

RCA Outputs

6 paired RCA jacks

RCA Inputs

6 paired RCA jacks

Output Level

7.5V rms, maximum

Output THD+N

<0.05%, 30kHz BW

Input Topology

Precision Power Balanced Differential

Signal-to-Noise Ratio

>85dBA @ max output

Frequency Response

20-20,000 Hz ± 0.25 dB

Input Impedance

>10k ohms

Input Sensitivity

250mV to 12V rms, (12V rms with -12dB 
attenuation)

Digital Signal Processing (DSP)

Crossover type/range

DSP crossover incorporating 
6dB/12dB/18dB/24dB per octave slopes
Butterworth/Linkwitz-Riley filters
Low Pass—20Hz to 20kHz
High Pass—20Hz to 20kHz
Band Pass—20Hz to 20kHz

Crossover Slope

6dB/12dB/18dB/24dB per octave

Q-BASS

Variable 0 to +18dB boost @20Hz-150Hz
Variable Q 0.1-9.0

Delay

Variable 0-70 msec each channel

EQ

7 band parametric EQ/LO/HIGH shelving, 
each channel ±18dB, Q variable 0.1-9.0

Presets

5 user presets

Sample Rate

48kHz

Bit Depth

24 bit effective resolution

Input/Output Delay

<3msec with all filters flat

Control Interface

Built-in Display

2 line x 16 character LCD display with 
blue backlight

Keyboard

10 front panel buttons

USB Port

Future use

Power

Supply voltage

9 to 16 VDC

Remote power output

2-second delay - max current 100 mA

Fuse

2.5 amps (5mm x 20mm)

11

Summary of Contents for PrecisionPower DCX 730

Page 1: ...DCX 730 6 Channel Digital Signal Processor DSP ...

Page 2: ... else nor are they for sale Our goal is to make sure that your PrecisionPower product will always sound as good as the day it was purchased Contact your authorized PrecisionPower dealer about obtaining any warranty service See Warranty inside back cover Model ___DCX 730 _____ Serial Number ___________________ Date of Purchase ___________________ CAUTION High powered car audio systems may produce s...

Page 3: ...etal edges that can cause shorts to ground and any moving parts that can tangle the wires such as heater controls or wiper motors 6 Route all power and signal cables as far as possible from other vehicle wiring harnesses Loom when appropriate 7 It is recommended that the DCX 730 processor be grounded at a chassis point preferably bare or scraped sheet metal near to where the processor is mounted T...

Page 4: ... and and gives the audio settings to the processing module The top panel has a green power on indicator LED and a red clipping out indicator LED If the clipping LED indicator is illuminating the DCX 730 requires adjustment Damage to your speakers could result from the DCX 730 being improperly adjusted PROCESSING MODULE The processing module is designed so that it can be integrated into almost any ...

Page 5: ... left output RCA phono connections to amplifier 2 REAR right and left output RCA phono connections to amplifier 3 SUB right and left output RCA phono connections to amplifier 4 Power connections for Ground Remote In 12V and Remote Out OPERATION When the unit is first powered up the home menu will show on the LCD display The Home icon in the upper left corner of the LCD screen will be highlighted a...

Page 6: ...rough the available menus and to adjust parameters At the top level the X arrow button will advance you to the next menu level Once the desired parameter is selected use the W X buttons to move the cursor over to the parameter You can then adjust the value of that parameter with the S T arrow buttons Recalling Presets While in the Home menu if you press any of the numbered buttons on the right sid...

Page 7: ...V Attenuation 0db to 12db when adjusted to 12db the input level is now 0 to 12 v When adjusting the system you should avoid running the DCX 730 into clipping Use the built in clip indicator for reference Clipping in the digital domain can be much harsher NOTE Because of the nature of the analog digital audio conversion process the sensitivity setting allows for 6dB of headroom that is an input lev...

Page 8: ...e measurement 3 Measure in inches and record the distance from the listening position to each of the remaining speakers Each speaker should correspond to a channel of the output from the DCX 730 4 Subtract the distance of the baseline speaker from each of the other speakers for a given channel of the DCX 730 and record that value these will all be negative values 5 Divide each of these differences...

Page 9: ...tor 50 F 13 29 60 F 13 42 70 F 13 55 80 F 13 67 90 F 13 80 100 F 13 92 110 F 14 05 Speaker Element Distance Difference Time Correction mS LT left tweeter LM left mid LW left woofer RT right tweeter RM right mid RW right woofer 8 ...

Page 10: ...igh Low Bandpass 1st 2nd 3rd 4th order 6 12 18 24dB oct slopes The crossover section features up to 4th order filters that are high low and bandpass This allows the creation of a stereo 3 way crossover The filter shape can be either traditional Butterworth or Linkwitz Riley filters that are more suitable for systems with drivers that are not concentrically mounted QBASS Freq 20 Hz to 150 Hz Steps ...

Page 11: ...g This can be easily accomplished by storing the preset to preset 1 recalling preset 1 press the mode button then the 1 button then the left arrow to bring up the sensitivity menu then pressing 2 Repeat this procedure for 3 4 and 5 This only needs to be done at the initial installation The Remote Out contains a 2 sec delayed turn on signal that can be used to extend the turn on time of downstream ...

Page 12: ...witz Riley filters Low Pass 20Hz to 20kHz High Pass 20Hz to 20kHz Band Pass 20Hz to 20kHz Crossover Slope 6dB 12dB 18dB 24dB per octave Q BASS Variable 0 to 18dB boost 20Hz 150Hz Variable Q 0 1 9 0 Delay Variable 0 70 msec each channel EQ 7 band parametric EQ LO HIGH shelving each channel 18dB Q variable 0 1 9 0 Presets 5 user presets Sample Rate 48kHz Bit Depth 24 bit effective resolution Input O...

Page 13: ...rvice 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 ASSUMES NOR AUTHORIZES ANY PERSON TO ASSUME FO...

Reviews: