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.
Stereo/Mono 1/3 Octave Equalizer Detachable Control Panel with 20 ft. Extension Cable for Remote Adjustment 30 Center Detented Controls with ±12dB gain Balanced Differential Input Stage Input Attenuation Switch Mono/Stereo Switch Defeat Switch Gold RCA input and output connectors PWM Power Supply Completely Designed and Engineered in the USA Signal-to-Noise Ratio >102dB Total Harmonic Distortion (1KHz, 1VRMS) 0.
The DEQ-230’s detachable control panel design greatly simplifies system tuning. It allows real time adjustment of system equalization from the front seat or outside the vehicle. In order to operate the DEQ-230 in this mode, simply remove the Allen head screw (located to the right of the thumb notch on the front bezel) that holds the main control panel to the docking bay, and carefully remove the main control panel.
NOTE: Before beginning, disconnect the negative (-) terminal of the battery prior to working on the positive (+) terminal to prevent an electrical short to ground. This is important, unless you want to spend the rest of your life with a nickname like "Sparky" or "Smokey." Reconnect the negative terminal only after all connections have been made. To prevent damage to the equalizer while driving, mount it in a secure place.
5
The next step is to connect the Power, Ground, and Remote wires to your DEQ-230. The power wire should run from the mounting location through the vehicle to the battery or power distribution block. Avoid sharp corners, creases, and sharp body parts. When passing through any metal wall (i.e. firewall etc.), a grommet must be used to prevent the wire from chaffing and shorting to ground. The ground wire should be of the same gauge as the power wire.
7 1. INPUTConnect RCA cables from your head unit or other signal source here. 2. Attenuation Push this switch in to accept high level RCA inputs (up to 8v) or direct speaker lead inputs from common grounded (not high powered) headunits. See diagram below for wiring. 3. Stereo/Mono Switch Push this switch IN to send Left Input to both channels of the DEQ-230 for Mono operation. Leave the switch OUT for Stereo operation. 4. OUTPUT Connect RCA cables to your Preamp, Crossover or Amplifier here. 5.
The DEQ-230 Equalizer puts an incredible amount of control in your hands. Correctly adjusted, it can solve many of the problems you will encounter along your road to perfect sound. Incorrectly adjusted, it can cause just as many problems. By following these guidelines, you will avoid common pitfalls in system tuning and get your sound quickly dialed in. We recommend that you use a Real Time Analyzer (RTA) to speed things up, but it is possible to tune your system without it.
7) Play your favorite music. If the sound isn't what you're looking for, go back to the pink noise and smoothly adjust your curve for more bass, less midrange or whatever you think will correct the sound. Remember that this is your system don't let someone else tell you how it should sound! When the sound is close to what you want, move to step 8. 8) Play several different music tracks. If you hear an instrument or voice, or other sound that is too loud, find the sound on the chart on page 9.
10
11
YES NO Check Input cables for signal by connecting them straight to the amplifier. Check power ground and remote wiring to DEQ-230. ANY SOUND NOW? NO YES Problem is elsewhere in the system. Check head unit and amplifiers. Problem is in the Equalizer See your local Authorized PrecisionPower Dealer or call 1-800-62POWER Reverse left and right RCA outputs.
13
14
Warranty 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.