Precision Power DUAL ZONE EQUALIZER E.DZ User's Manual
Contents
1. 3 Ground black Connect this terminal to a quality ground location preferably the chassis of the head unit which must itself be properly grounded to the vehicle chassis It is not recommended that the factory radio ground be used for after market audio components 4 Sub Out These are the pre amp RCA audio outputs for sending the audio signal to the subwoofer amplifier 5 CD Input These are the pre amp stereo RCA audio inputs to be connected to the source unit s front pre amp outputs 6 AUX Input These are the pre amp stereo RCA audio inputs to be connected to secondary source unit or auxiliary device s pre amp outputs 7 Front Output These are the pre amp stereo RCA audio outputs for sending the audio signal to the front speaker amplifier 8 Rear Output These are the pre amp stereo RCA audio outputs for sending the audio signal to the rear speaker amplifier 4 H Installation Instructions 1 Read thismanual carefully andin its entiretybefore installing thisequalizer 2 Always disconnectthe battery orremove the fuses for circuits youwill be workingon 3 Check for clearance of any hazards such as wiring harnesses or heater core before mounting the equalizerto any panelsin the vehicle 4 Mount the equalizer in a location that is easy to access and won t be distracting to vehicle operation whilemaking adjustments 5 Route all power wires and audio cables away from sharp metal edges that can cause shorts to ground and any movi2. volume control for your audio system Generally the source unit volume is set at a mocerate level then utilize the E DZ s Master Volume Control The ring around the Mater Volume Control is a fader to increase or decrease the outputlevels between thefront and rearoutputs 3 Subwoofer Level Control The Subwoofer Level Control will increaseor decrease theoutput level ofthe subwoofer pre amp output in relationto the Master Volume Control 4 Graphic EqualizerControls The Graphic Equalizer Controls will increase or decrease the level of its corresponding frequency 18dB or 18dB Turn theknob counter clockwise left to decrease thelevel clockwise right to increase the level Top Panel Functions I aj uy al Y 1 E 1 uy 1 avaa INO I xnv dI no ans INdINO 1NdNI SUBWOOFER FREQ RESPONSE e CDICAIN ace D S LOW LHL 34B SUB FREQ i MV MQ Batali letz r MU 1248 FRONT CHANNEL PERFORMANCE eee 18dB 18dB e 125Hz 500Hz 3 5KHz 12KHz REAR CHANNEL PERFORMANCE 18dB PrecisionPower E D Z DUAL ZONE EQUALIZER ni it TI SS gt 1 CD GainSelector The CD Gain Selector will increase or decrease the input sensitivity of the CD input We suggest if your source unit s pre amp voltage is 4V or greater sethe sensitivity switch to HI If your source unit s pre amp voltage is 2V 4Vset the sensitivity switch to MID If your source unit s p
3. PROVEMENT THE ABOVE SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE E Warranty LIMITED ONE YEAR CONSUMER WARRANTY LIMITED TWO YEAR CONSUMER WARRANTY WITH PURCHASE AND INSTALLATION BY A PRECISION POWER AUTHORIZED DEALER Precision Power promises to the original purchaser to repair or replace this product with a new or refurbished unit at Precision Power s sole and absolute discretion should it prove to be defective in workmanship or material under normal use for a period of two years from the date of purchase from the Precision Power authorized dealer PROVIDED the product was purchased and installed by a Precision Power authorized dealer During this two year period there will be no charge for product repair or replacement PROVIDED the unit is returned to Precision Power return shipping pre paid along with the required proof of installation the bill of sale or other dated proof of purchase and the consumer s contact information If the unit is installed by anyone other than a Precision Power authorized dealer the warranty period will be 90 days from the date of purchase 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 During this 90 day period there will be no charge for the repair or replacement PROVIDED the unit is returned to Precision Power return sh
4. PrecisionPower eve DUAL ZONE EQUALIZER Owner s Manual and Installation Guide E Introduction Thank you forchoosing PrecisionPower audio equipment AtPrecisionPower we proudly design and engineerthe world s finestaudio products Ouraward winning productsutilize innovative design andtechnology to consistently deliver Absolutely State ofthe Art performance sound quality reliability and value This PrecisionPower product reflects our commitment to offer you unparalleledversatility and qualityfor years ofdependable service and listening enjoyment E Dual Zone Concept The concept behind E DZ is the ability toequalize the front stage and rear fillof the vehicle audio system independently The front stage is the focal point of your audio system requiring different processing thanthe rearfill The front stage should appear higher onthe dash very crisp and clear and aslightly higher amplitudelevel when comparedto the rearfill The rear fill does notrequire as extensive processing like thefront stage asit is notthe focal pointof the audio system E DZ achieves this with independent multi band equalization of thefront stage and rearfill audio signals E Service amp Warranty Do notattemptto service PrecisionPower products yourself Performing exploratory surgery on your audio equipment yourself will void the warranty Many parts of your PrecisionPower gear are custom built to our specifications Our factory parts are not made available
5. ipping prepaid along with the bill of sale or other dated proof of purchase and the consumer s contact information 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 This warranty does not cover the elimination of externally generated static or noise or the correction of antenna problems or weak reception damage to speakers accessories electrical systems cosmetic damage or damage due to negligence misuse failure to follow operating instructions accidental spills or customer applied cleaners damage due to environmental causes such as floods airborne fallout chemicals salt hail lightning or extreme temperatures damage due to accidents road hazards fire theft loss or vandalism damage due to improper connection to equipment of another manufacturer modification of existing equipment or Product which has been opened or tampered for any reason Units which are found to be damaged by abuse resulting in thermally damaged voice coils are not covered by this warranty but may be replaced at the absolute and sole discretion of Precision Power Unit must be returned to Precision Power postage pre paid with bill of sale or other dated proof of purchase bearing the following information consumer s name telephone number and address authorized dealer s name and address and product description Please contact Preci
6. ng parts that can tange the wires such as heder controls or wiper motors 6 Route allpower and signalcables as faras possible fromother vehicle wiringharnesses Loom when appropriate 7 lt is recommended that the equalizer be grounded directly to the chassis of the head unit The head unit should be grounded at a chassis point preferably bare or scraped sheet metal otherthan the factoryhead unit groundwire or underdash brackets 8 Use only thesupplied machine screws to mount the equalizer ordamage to the circuitry could occur 4 x 6 mm machine screw 4 dashboard eS d E D Z DUAL ZONE EQUALIZER i Mounting Bracket 4x12 mm self tapping screw 2 4 mm sprin washer 2 a 4 mm plain washer 2 E initial Settings 1 After completing unit installation wire and appropriate audio signal connections power up the source unit play a familiartrack and setthe volume levelto approximately 75 2 Set all individual Graphic Equalizer Controls to 0dB Master Volume Control and Subwoofer Level Control shouldbe set tominimum and faderset to even 3 Press the Input Selection Switch to accept the input signal from the source unitor auxiliary source 4 Set the CDGain Selector setting appropriate to the pre amp voltage ofyour source unit Most source units provide 2V 4V pre amp power Inthis case setthe CD gain sensitivity to MID If your source unit preamp voltage is higher set
7. re amp voltage is less than 2Vset the sensitivity switch to LOW 2 Subwoofer FrequencySelector The Subwoofer Frequency Selector is a built inlow pass filter forthe Subwoofer Output Generally the low pass filter canbe setto 128Hz thenthe subwoofer amplifier s low pass filter is fine tuned forthe desired response MB Rear Panel Functions CD CHANGER AUX INPUT OUTPUT SUB OUT _ 0000000000 Cale B Red GROUND Black REMOTE Orange REAR SPEAKER SUBWOOFER FRONT SPEAKER 1 12V Constant Power Lead red This is the main power input for the E DZ andmust be connected to a 12V constant power supply DO NOT connect this to a switched 12V source or the system may pop when the key is turned off 2 Remote Turn On Input Lead orange This is the input for turning on the E DZ and system amplifiers It should be connected to the 12V remote turnon output of the system head unit The E DZhas a built in turn off delay to prevent turn off pops When the remote turn on signal from the head unit shuts off the amplifiers will turn off immediately and the E DZ will stay on for five seconds before turning off This feature is designed into the E DZ to eliminate system turn off pops that can occur when several components turn off at the same time DO NOT connect this to a 12V constant power supply
8. rranty may not apply Some states do not allow the exclusion or limitation of incidenta or consequential damages In such states the exclusion or limitation of this Limited Warranty may not apply to you This Limited Warranty gives you specific legal rights and you may have other rights which vary from state to state end
9. sion Power warranty office at 800 724 1377 or repairs precisionpower com to obtain a Return Authorization number amp address prior to shipping the product Note This warranty does not cover labor costs for the removal and reinstallation of the unit INORDER FOR THE TWO YEAR WARRANTY TO BE VALID YOUR UNIT MUST BE SHIPPED WITH PROOF OF INSTALLATION BY A PRECISION POWER AUTHORIZED DEALER ALL UNITS RECEIVED BY PRECISION POWER FOR WARRANTY REPAIR WITHOUT PROOF OF PRECISION POWER AUTHORIZED DEALER INSTALLATION AND PURCHASE WILL BE COVERED BY THE LIMITED 1 YEAR WARRANTY BY PURCHASING THIS PRODUCT 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 PRECISION POWER NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO ASSUME FOR IT ANY LIABILITY IN CONNECTION WITH THE SALE OF THE PRODUCT PRECISION POWER HAS ABSOLUTELY NO LIABILITY FOR ANY AND ALL ACTS OF THIRD PARTIES INCLUDING ITS AUTHORIZED DEALERS OR INSTALLERS BY PURCHASING THIS PRODUCT THE CONSUMER AGREES AND CONSENTS THAT ALL DISPUTES BETWEEN THE CONSUMERAND PRECISION POWER SHALL BE RESOLVED IN ACCORDANCE WITH CALIFORNIA LAWS IN LOS ANGELES COUNTY CALIFORNIA Some states do not allow limitation on how long an implied warranty lasts In such states the limitation or exclusions of this Limited Wa
10. the CD gain sensitivity to HI if the voltage is lower set the CDgain sensitivity to LOW We recommend you never set the CD gain sensitivity to LOWwith a sourceunit that provides ahigher pre amp voltage Thiscan create unwanted levelsof distortion andpossible damage toyour E DZ 5 Set the Subwoofer Frequency Selector switch to the desired low pass filter Generally the low pass filter is set to 128Hz and then the subwoofer amplifier s low pass filter is fine tuned for the desiredresponse 6 Adjust the Subwoofer Level Control to achieve the desired tonal balance between the front rear speakers andthe subwoofer level 7 Adjust the various individual Graphic Equalizer Controls to increase or decrease the output level of each frequency to achievethe desired response for the frontstage and rearfill E Specifications FREQUENCY RANGES FRONT CHANNEL 125Hz 500Hz 3 5KHz 12KHz REAR CHANNEL 50Hz 600Hz 6 3KHz BOOST CUT 4053 eos eaen a e a poet nord ane n 18dB S N RATIO ai ea 115dB REF 1V INPUT FREQUENCY RESPONSE iii 10Hz 15KHz 1dB MAXIMUM OUTPUT VOLTAGE iii 8V RMS THD ire ee 0 05 INPUT SENSITIVITY titti 150mV HEADROOM GG 20dB INPUT IMPEDANCE ccc CC CCU 10K OHMS STEREO SEPARATION enna terete nese 82dB 1KHz OPERATING VOLTAGE iii 11 15V NEGATIVE GROUND OUTPUT IMPEDANCE n0scauiennesagiizararzoni 50K OHMS SIZE HxWxD T PEAN G E at isl E e e 178x27 5x115mm DUE TO OUR CONTINUING EFFORTS TOWARDS PRODUCT IM
11. to anyone else nor are they for sale Our goal is to make sure thayour PrecisionPower product will always sound as good as the day it was purchased Contact your authorized PrecisionPower dealer about obtainingany warranty servicethrough PrecisionPower See Warranty inside back cover E Cautions High powered car audio systems may produce sound pressure levels that exceed the threshold at which hearing loss may result They may als impair a driver s abilty to hear traffic sounds or emergency vehicles Use common senseand practice safelistening habits when listening toor adjusting youraudio system E Features 20dB Headroom Switching Power Supply Built in Low Noise Bi FET Op Amps 2 Selectable Balanced RCA Inputs w Input Gain Front Rear amp Subwoofer RCA Outputs Four 18dB FrontBands 125Hz 500Hz 3 5kHz 12kHz Three 18dB Rear Bands 50Hz 600Hz 6 3kHz Independent Subwoofer Level Control Selectable Low Pass Filter 32Hz 64Hz 125Hz Fader Control Blue Backlit Control Knobs E Control Panel Functions 1 Input SelectionSwitch The Input SelectionSwitch controls whichof the twoinputs the E DZprocesses Press theswitch in to accept the audio signal from your source unit through the CD input Leave the switch out to accept and processthe audio signalfrom a secondarysource unit orauxiliary device throughthe AUX inputs 2 Master Volume Control The Mater Volume Control can be used asa primary or secondary
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