Precision Power Car Stereo System DCX 730 User Manual

DCX-730  
6 Channel Digital Signal Processor (DSP)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
INSTALLATION  
1. Read this manual carefully and in its entirety before installing the  
DCX-730.  
2. Always disconnect the battery or remove the fuses for circuits you  
will be working on.  
3. Check for clearance of any hazards such as wiring harnesses or  
heater core before mounting the equalizer to any panels in the  
vehicle.  
4. Mount the DCX-730 controller and processing module in a location  
that is easy to access. The processing module should be mounted  
within the passenger or trunk compartments. Do NOT mount the  
processing module in the engine compartment.  
5. Route all power wires and audio cables away from sharp metal  
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. The DCX-730 controller should be  
grounded at a chassis point (preferably bare or scraped sheet metal)  
other than the factory head unit ground wire or under dash brackets.  
8. Use only the supplied machine screws to mount the DCX-730 or  
damage to the circuitry could occur.  
CONTROLLER FEATURES  
Controls and Display  
The DCX-730 has the following features.  
1
2
3
4
5
1. Mode. Press this button to return to the Home menu.  
2
Download from Www.Somanuals.com. All Manuals Search And Download.  
2. Arrows. Use the arrow buttons to navigate through the menus and to adjust a  
menu setting.  
3. LCD Display. Backlit display, soft-blue background for easy viewing at night.  
4. Presets. Five preset buttons to allow you to select from 5 settings that you  
have entered. Examples of these presets would be for the type of music,  
different volume settings, different audio sources.  
5. USB. Open this cover to plug in a mini-USB connector. This port is used to  
upgrade the software in the controller and to allow the installer to load in  
parameters for known vehicle acoustical environments using a pc.  
The controller connects to the processing module (shown below) by means of a  
long cable at the back of the controller. This cable powers the controller from the  
processing module and and gives the audio settings to the processing module.  
Power Out  
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  
installation. All of the audio flows through the processing module prior to going to  
the amplifier. This allows the processing module to be mounted in a remote  
location where the audio signal path length can be kept to a minimum. The unit  
must be mounted in a location where it will not be subject to excessive  
temperature or vibration. The processing module should be installed in the  
passenger compartment or the trunk of the vehicle. Do NOT install this unit in the  
engine compartment, as the unit will be exposed to extreme temperatures and  
weather.  
3
Download from Www.Somanuals.com. All Manuals Search And Download.  
Input Connections  
1
2
3
4
1. Connects to the display controller cable. This cable supplies power to the  
controller module and transmits control and display signals between the  
display and processor module.  
2. SUB right and left input, RCA phono connections.  
3. REAR right and left input, RCA phono connections.  
4. FRONT right and left input, RCA phono connections.  
Output and Power Connections  
1
2
3
4
1. FRONT right and 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 and  
the Precision Power DCX-730 message appears.  
NOTE: Pressing the Mode button at any time will return you to the  
Home menu. Also, if the unit is in one of the other menus and is  
4
Download from Www.Somanuals.com. All Manuals Search And Download.  
left unattended for over a minute, the unit will return to the Home  
menu. If any of the settings are changed pressing the Mode button  
or after one minute elapses, the setting(s) will be saved to preset  
6. Preset 6 is a scratchpad where settings are saved temporarily  
so that the setting(s) can be tried before saving to one of the 5  
presets.  
The DCX-730 controller contains the control and provides the menu driven  
displays to adjust the digital processing power available within the unit. The user  
interface consists of a series of menus shown on the display and arrow buttons to  
navigate through the menus and to also set the individual available settings.  
These settings can then be saved to individual presets (maximum of 5) by using  
the number keys on the right hand side of the controller.  
Arrow Buttons  
Use the arrow buttons to navigate through 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 side of the controller the presets stored for that  
corresponding number will be loaded. The active preset presently  
used is displayed by the number in the square below the Home icon  
on the LCD panel. If a 6 is displayed there is no active preset loaded.  
Home Menu Display  
Precision Power DCX 730  
State of The Art Mobile . . .  
1
Indicates the preset memory location currently used. Use the number keys on the right  
side of the DCX-730 to select a Preset memory to be loaded. To store current  
parameters to a preset, push the preset button while in any menu other than home.  
When a preset is being loaded the following screen displays.  
Loading X  
WAIT PLEASE . . .  
5
Download from Www.Somanuals.com. All Manuals Search And Download.  
Storing Presets  
While in any of the parameter menus, you can save any changes to settings by  
pressing the desired number button that you wish these settings to be saved to.The  
parameters which have changed will replace the default parameters in the preset.  
When a preset is being saved the following screen displays.  
Saving X  
WAIT PLEASE . . .  
MENUS  
Sensitivity  
The sensitivity parameter adjusts the unit’s gain (input attenuation) to match the  
corresponding head unit. This allows you to run the head unit, DCX-730, and  
amplifiers at their optimum gain settings for minimum noise. The attenuation  
setting allows further reduction of the input level to allow inputs up to 12 volts to  
be accommodated.  
Input Level:  
Attenuation:  
0 to 2.9V  
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 level of 1 V rms drives the sensitivity  
setting of 0.5V rms to near clipping) prior to digital clipping.  
Volume  
The volume parameter adjusts the output level of the DCX-730. For normal use  
this would be set to approximately -10 to -15dB. Then adjust the sensitivity of the  
amplifier following normal gain adjustment guidelines provided with the amplifier.  
6
Download from Www.Somanuals.com. All Manuals Search And Download.  
Delay  
The delay parameter allows you to adjust the delay of individual channels by up  
to 70 msec. For example, this allows adjusting the driver’s side speakers audio to  
coincide with the arrival of the passenger side speaker at a listening point in the  
vehicle. Similarly, the audio arrival from the front and rear speakers can be  
adjusted. Using biamped connections and delay adjustment, this can help  
compensate for installations where the optimum tweeter mounting location will not  
accommodate woofer mounting and the effect of signal arrival differences can be  
minimized.  
Use the following instructions to set the delay parameter for each speaker. The  
table printed below is provided for your use in facilitating the delay setup.  
1. Set the delay of the farthest speaker from the desired listening position to  
zero.  
2. Measure, in inches, and record the distance from the desired listening  
position to the farthest speaker. This is your baseline 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 by 13.52 (value at 68°F) to set the required  
delay settings in msec for each of the remaining speakers. The exact  
speaker path length differences will appear for each channel as you enter  
the msec delay value.  
NOTE: The value of 13.52 varies with temperature, a chart is given at the  
end of this discussion listing values to be used with different  
temperatures. The error in the this value is at the most 5% between  
temperatures of 50°F to 100°F.  
For example: The baseline speaker (farthest away) measures 60 inches. The LT  
(left tweeter) measures 20 inches. The difference is 20-60=-40 inches. The delay  
time correction is -40/13.52 which equals a delay setting of -2.96 mS (a setting of  
2.96 will be entered into the DCX-730 channel for the LT speaker.  
7
Download from Www.Somanuals.com. All Manuals Search And Download.  
Time Correction  
mS  
Speaker Element Distance Difference  
LT (left tweeter)  
LM (left mid)  
LW (left woofer)  
RT (right tweeter)  
RM (right mid)  
RW (right woofer)  
Temperature  
50°F  
Correction Factor  
13.29  
60°F  
13.42  
13.55  
13.67  
13.80  
13.92  
14.05  
70°F  
80°F  
90°F  
100°F  
110°F  
8
Download from Www.Somanuals.com. All Manuals Search And Download.  
EQ (Equalization)  
Frequency:  
20 Hz to 20 kHz  
0.1 TO 9.00  
18dB  
Q:  
Level:  
The equalization adjustment allows up to 7 bands per channel of parametric  
equalization. These allow you to equalize problem areas in the response by  
matching the equalization filter shape to the response. Also the option of using  
high or low shelving filters allows the creation of boosts and cuts at each end of  
the spectrum, similar to existing analog tone controls.  
Xover  
High  
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:  
Steps:  
Q:  
20 Hz to 150 Hz  
1dB  
0.1 to >9.00  
+0dB to >+18dB  
Level:  
The QBASS filter allows boosting the lower frequencies (20Hz-150Hz) to make up  
for deficiencies, as well as increasing the perception of bass. Unlike the EQ filters,  
this feature is a boost-only filter system.  
9
Download from Www.Somanuals.com. All Manuals Search And Download.  
NOTE: Because QBASS is a boost only EQ system, it is easy to  
either clip the amplifier, or overdrive a speaker past its excursion  
limits. To make up for frequency response that is 10dB down (say  
at 45 Hz), 10X the amplifier power is required. This may tax both  
driver and amplifier. It may also exhaust the headroom in the DSP  
controller. This issue is especially problematic in vented (ported)  
speaker enclosures, where the cone excursion increases  
considerably below the port tuning frequency. If you hear any sign  
of bottoming, or other speaker or amplifier misbehavior, try  
reducing the amount of bass boost. This is also possible with any  
EQ band set to excessive boost.  
TYPICAL SYSTEM DIAGRAM  
NOTE: It is recommended that the  
Remote out of the DCX730 be connected to  
the amplifier(s) and the Remote Out of the  
Head Unit be connected to the Remote In  
of the DCX730.  
DCX300.4  
or  
DCX600.4  
Left Front  
DCX730 Controller Module  
FRONT  
Right Front  
Antenna  
Left Front  
Right Front  
Left Rear  
REAR  
Left Front  
Right Front  
Right Rear  
Sub Left  
Sub Right  
Head Unit  
DCX730 Processing Module  
Left Front  
SUB.  
Right Front  
Power  
DCX 500.1  
DCX 1000.1  
DCX 1500.1  
NOTE: This diagram represents a typical setup. The components  
shown connected to the DCX730 are optional and not provided.  
Your setup must be configured to meet your installation  
component requirements.  
NOTE: Although the input and output connections are labeled  
with typical application, any input can be routed to any output.  
The caveat here is to make sure that all of the presets that you  
plan to use contain the same routing. 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 devices  
(amplifiers).  
10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
SPECIFICATIONS  
Analog  
RCA Outputs  
6 paired RCA jacks  
RCA Inputs  
6 paired RCA jacks  
Output Level  
7.5V rms, maximum  
Output THD+N  
Input Topology  
Signal-to-Noise Ratio  
Frequency Response  
Input Impedance  
Input Sensitivity  
<0.05%, 30kHz BW  
Precision Power Balanced Differential  
>85dBA @ max output  
20-20,000 Hz 0.25 dB  
>10k ohms  
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  
6dB/12dB/18dB/24dB per octave  
Variable 0 to +18dB boost @20Hz-150Hz  
Variable Q 0.1-9.0  
Crossover Slope  
Q-BASS  
Delay  
EQ  
Variable 0-70 msec each channel  
7 band parametric EQ/LO/HIGH shelving,  
each channel 18dB, Q variable 0.1-9.0  
5 user presets  
Presets  
Sample Rate  
Bit Depth  
48kHz  
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  
USB Port  
10 front panel buttons  
Future use  
Power  
Supply voltage  
Remote power output  
Fuse  
9 to 16 VDC  
2-second delay - max current 100 mA  
2.5 amps (5mm x 20mm)  
11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
LIMITED TWO YEAR CONSUMER WARRANTY:  
Directed Electronics, Inc. promises to the original purchaser, to replace this  
product should it prove to be defective in workmanship or material under normal  
use, for a period of two years from the date of purchase by the dealer as indicated  
by the date code marking of the product PROVIDED the product was installed by  
an authorized Directed dealer. During this two-year period, there will be no charge  
for this replacement PROVIDED the unit is returned to Directed, shipping pre-  
paid. If the unit is installed by anyone other than an authorized Directed dealer,  
the warranty period will be 1 year from the date of purchase by the dealer as  
indicated by the date code marking of the product. During this 1-year period there  
will be no charge for this replacement PROVIDED the unit is returned to Directed,  
shipping pre-paid.This warranty is non-transferable and does not apply to any unit  
that has been modified or used in a manner contrary to its intended purpose, and  
does not cover damage to the unit caused by installation or removal of the unit.  
This warranty is void if the product has been damaged by 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 NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO  
ASSUME FOR IT ANY LIABILITY IN CONNECTION WITH THE SALE OF THE  
PRODUCT. DIRECTED HAS ABSOLUTELY NO LIABILITY FOR ANY AND ALL  
ACTS OF THIRD PARTIES INCLUDING ITS AUTHORIZED DEALERS OR  
INSTALLERS. Unit must be returned to Directed, postage pre-paid, with:  
consumer’s name, telephone number, and address, authorized dealer’s name and  
address, and product description. IN ORDER FOR THIS WARRANTY TO BE  
VALID, YOUR UNIT MUST BE SHIPPED WITH PROOF OF INSTALLATION BY  
AN AUTHORIZED DIRECTED DEALER. ALL UNITS RECEIVED BY DIRECTED  
FOR WARRANTY REPAIR WITHOUT PROOF OF DIRECTED DEALER  
INSTALLATION WILL BE COVERED BY THE LIMITED 1-YEAR PARTS AND  
LABOR WARRANTY. Note: This warranty does not cover labor costs for the  
removal and reinstallation of the unit. BY PURCHASING THIS PRODUCT, THE  
CONSUMER AGREES AND CONSENTS THAT ALL DISPUTES BETWEEN THE  
CONSUMER AND Directed SHALL BE RESOLVED IN ACCORDANCE WITH  
CALIFORNIA LAWS IN SAN DIEGO COUNTY, CALIFORNIA.  
© 2005 Directed Electronics, Inc. All rights reserved. G41845 03-05  
Download from Www.Somanuals.com. All Manuals Search And Download.  

Philips DVD Player BDP5506 F7 User Manual
Philips Food Processor 9FF2CME User Manual
Philips MP3 Player Accessories SJM2106 User Manual
Philips Radio SFP2007 User Manual
Philips Stereo Amplifier TDA7057AQ User Manual
Poulan Trimmer 530163732 User Manual
Praktica Digital Camera D00387 User Manual
ProForm Home Gym PFEL51050 User Manual
Proxim Network Router 70443r2 User Manual
PYLE Audio Microphone PDWM1500 User Manual