DCX-730 6 Channel Digital Signal Processor (DSP)
INTRODUCTION Thank you for choosing PrecisionPower™ audio equipment. At PrecisionPower™ we proudly design and engineer the world’s finest audio products. Our award winning products utilize innovative design and technology to consistently deliver Absolutely State of the Art™ performance, sound quality, reliability, and value. This PrecisionPower™ product reflects our commitment to offer you unparalleled versatility and quality for years of dependable service and listening enjoyment.
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.
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.
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.
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.
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.
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.
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) Temperature Correction Factor 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.
EQ (Equalization) Frequency: Q: Level: 20 Hz to 20 kHz 0.1 TO 9.00 ±18dB 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.
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.
SPECIFICATIONS Analog RCA Outputs RCA Inputs Output Level Output THD+N Input Topology Signal-to-Noise Ratio Frequency Response Input Impedance Input Sensitivity 6 paired RCA jacks 6 paired RCA jacks 7.5V rms, maximum <0.05%, 30kHz BW Precision Power Balanced Differential >85dBA @ max output 20-20,000 Hz ± 0.
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.
