Dali Racing`s NSX Audio System System Overview
Contents
1. Right side of page 23 238 Photos B C D Remove the 3 piece carpet kit in the trunk by following diagram C Make sure not to misplace any of the plastic retainer clips Page 20 66 Remove the factory tool and jack kit Harness installation Remove the factory radio plug from back of radio There are 2 methods of accomplishing this The first follow the service manual instructions and remove the dash and the radio If choosing this painful route follow diagram D Pages 23 232 233 This is NOT recommended as it is time consuming and quite often leads to a scratched dash bezel The second and preferred method will take a little patience and finesse To accomplish this grab a flashlight and your pick tool set and position yourself on the passenger side of the console Locate the plastic connector on the back of the factory radio use your pick tool to depress the locking tab and slide plug towards front of vehicle and pull out to the passenger side of the console Photo E Next insert plug of the new harness that is the same as the factory plug into the radio and plug the factory radio harness into the female jack Next it s time to route the harness to the trunk Follow the route pictured in photos F G The harness will pass through the front firewall in the right corner in the large oval grommet pictured in photo H The grommet would be over your right shoulder if seated in the passenger seat Make sure to run the harness2. THUNDERVVORKS mobile i ji engineering secteroses Dali Racing s NSX Audio System System Overview Our design objectives were a to maintain the cosmetic integrity and aesthetics of the vehicle a to enable the vehicle to return to stock with little work and expense a to utilize the factory head unit and changer thus eliminating the need to modify the dash a to conserve trunk space a to have a basic framework that leaves room for budgetary and listening habit variances of different drivers a to design a system that in no way compromised the performance or reliability of the car even when the car is being driven like it is a rental Equipment used in the system a Soundgate LOC Audiophile interface a EarthQuake 120 2 4 channel amplifier with built in crossover a Diamond Audio Motorsports 6 5 2 way separate speakers a Eclipse 8708 4 Cast magnesium frame long excursion subwoofer Installation Overview The audio signal from the factory head unit and the factory speaker wires are sent to the trunk via a pre manufactured harness to a Soundgate interface mounted in the trunk that massages the signal Then the signal heads through twisted pair gold connector signal cables to the Earthquake 120 2 amplifier mounted in the area formerly holding the jack and tool kit The amp is protected underneath a perforated shroud that is powder coated black The amplifier is configured to send 85 watts to each of the Diamond Audio sp
3. Y according to the following legend Incorrect connections can result in damage to your factory radio and or the amplifier Harness wire colors Soundgate LOC connections Unused Left positive lo input Blue w white Left positive high input Green w white Left negative input Black Connected Left ground Black Connected Right ground Green w black Right negative input Blue w black Right positive high input Unused Right positive lo input The 18 gauge black wire connected to the two ground terminals on the interface must be connected to chassis ground This can be accomplished by securing them via the bolt on the trunk latch support strut Failure to connect this can result in severe engine whine through your system The Soundgate interface can be mounted either by screwing to the rear wall not recommended or by pushing it between the trunk latch support strut and the rear wall of the trunk and securing with the enclosed long tie wrap Installation of black carpet underneath amplifier The carpet s purpose is to conceal the wiring to the amplifier and make it look pretty when showing your friends your new system It can be secured in place with spray adhesive or left loose as it can t go anywhere If using the spray adhesive method spray both the carpet and the trunk floor with an even coating allow to set up for several minutes or until dry to the touch and then press the carpet to
4. age speakers and the amplifier and make your new system sound very bad After you have gotten the urge to experiment out of your system and the frustration with how bad you have made your new system sound has really set in use the following legend to return it to the optimum settings Function Control Setting Notes 18 clicks This is the lowpass frequency of your subwoofers The optimum setting for from full most styles of music is 73hz Lowering it can mean less output and poor Rear xover Freq counter system aque response Raising iL can mean boomy a AN ional Ub clockwise bass that will not help create a realistic sound stage Rear HP LP Switch out This switch determines whether your subwoofer is low pass or high pass Rear gain 90 l This is the level control for the subwoofer Adjust sparingly Too much clockwise gain can cause distortion and possibly damage the subwoofer and or amp Q bass a This dangerous control serves no purpose in your system DON T TOUCH UNLESS OTHERWISE INSTRUCTED clockwise Front gain 45 l This is the level control of the door speakers Adjust sparingly Too much clockwise gain can induce noise and distortion 12db Out This is used when running a speaker level input to the amplifier Combine In This sends the output of the Soundgate to all four channels of the amp Front HP freq 19 clicks This is the high pass frequency of your Diamond Audio door speakers from full They are
5. bility to do a good job STOP and contact your local high end car stereo shop to schedule an appointment The following tools are recommended for the installation electric or cordless drill 2 phillips screwdriver a set of drill bits 8mm 10mm 12mm sockets pick tool set diagonal cutters dykes Start your installation by reading through the entire installation instructions to mentally get a picture of the entire process Next unpack the entire system and familiarize yourself with all of the different components Now you re ready to start the installation This is the recommended sequence for performing the installation Remove the passenger seat Set the climate control system to Floor Defrost Remove the negative battery terminal Disassembly I nstructions The next step is the disassembly of all areas Next remove the following interior trim pieces by following diagram A reprinted from the NSX service manual Bottom of page 20 38 1 Side sill pad Side sill trim Rear trim panel 2 3 4 Right rear trim panel 5 Rear upper trim panel Pull the floorboard carpet kit on passenger side Pull carpeted panel on side of console back far enough to access back of radio To accomplish this remove the screw from the floor heater vent located at the top of the panel and shown in photos AGE Next remove the aluminum panel covering the subwoofer and then the subwoofer and mounting bracket by following diagram B
6. cidentally depressed Insert the supplied Maxi fuse into fuse holder on main power harness Turn the system on and proceed through the following tests balance test verify that left is left and right is right If incorrect reverse the RCA cables into the amplifier engine noise test Roll up the windows shut the doors start the engine and listen for any type of whine squeal or tic through the system If present make sure battery connections are tight If still present contact the ThunderWorks Technical Support Hotline at 619 596 1925 volume test Turn the system on and with the bass and treble controls set to flat and a well recorded CD playing turn the volume up and listen for adequate volume good relationship between the subwoofer and door speakers and distortion If needed make adjustments and re evaluate If all tests are positive mount the perforated amplifier shroud with the self tapping screws as shown in photo R Finally reinstall the door panels trunk carpet kit and interior and go for a drive
7. eaker modules mounted in the factory door speaker locations These modules house the 1 aluminum dome tweeter a 6 5 cast frame mid bass mid range driver and the very sophisticated crossover network that divides the frequencies and sends them to their respective speakers The Eclipse 8708 4 subwoofer is mounted in a CF amp fiberglass enclosure that occupies approximately the same space that once held the little spindly plastic bag referred to as a subwoofer by the fine folks at Bose Acura This subwoofer receives 200 watts from the amplifier No NSXs were harmed during this installation All scenes involving NSXs were closely monitored by the Society to Prevent People From Destroying Their NSX So how does it sound Many NSXs have been destroyed at the hands of the technically challenged to achieve sound quality and volume that isn t even close to this system It is well engineered sonically accurate capable of very high undistorted output and is invisible to all but the very trained eye It is rare to have something this simple sound and function so well THUNDERVVORKS mobile i ji sie hag LL errr Dali Racing s NSX Audio System Installation Instructions Given the proper tools some degree of mechanical aptitude and a little patience this system should be able to be installed over a weekend Take your time follow the directions carefully and be thorough and you should have no problems If you have any doubts about your a
8. set to 80 hz Lowering this frequency can cause distortion and counter possibly damage the speakers Raising it will make the sound thinner and clockwise less detailed Subwoofer installation Next install the subwoofer enclosure and connect its harness into the 2 pin connector on main harness that mates with the sub connector Attach the enclosure using the supplied blots and the lower two factory mounting holes Door speaker installation This applies to both doors Remove the door panel and factory speaker units by following diagrams E 1 2 Pages 20 7 8 On the speaker unit harness that remains in the door cut the orange and white wires 1 5 from the plug Next screw the new speaker module into the door using the supplied 6 3 long sheet metal screws Use the factory sheet metal screws to align the unit via the factory mounting locations and then use the 3 screws to secure the pod as shown in photo Q Strip of insulation from the orange and white wires and connect to crossover mounted on door pod according to the following diagram Wire Connect to Orange Negative input White Positive input Incorrect connections will cause phase cancellation and negatively impact the sound quality of the system Repeat on other door Turn on procedures Reconnect the negative battery cable Verify amplifier settings according to the legend to make sure no buttons were ac
9. the floor It is important to make sure you have the wires routed through the opening first Insert the remaining wires from the main harness as well as the RCA cables from Soundgate through the hole in center of carpet as shown in photo O Amplifier wiring and mounting Next insert the speaker wires into their plugs according to the following legend Make sure to carefully confirm the orientation of the plug into the amp prior to installing wires Incorrect connections can result in damage to your factory radio and or the amplifier Harness wire colors Amplifier speaker plug connections White Left positive on front plug Orange Left negative on front plug White w black Right positive on front plug Orange w black Right negative on front plug Blue REM on front plug Red w white amp red w black Left positive on rear plug Black w white amp green Right negative on rear plug Next insert the power cables into their plug according to the following legend Red Black Next insert the RCA signal cable into the Front inputs Position the amplifier in the center of the well and secure using the provided screws as shown in photo P The amplifier will arrive at your door with the crossover gain and switch settings in the optimum positions however some of us like to play so read the instructions provided with your amplifier very carefully before touching the adjustments Incorrect settings can dam
10. through the top of the grommet over the factory harness Be careful when cutting a slice in the grommet to pass the wires through It is very easy to cut in to the harness or your fingers Once inside the engine compartment route the harness over the top of the fan securing it to the fan bracket and tie wrap wire securely out of harms way while routing towards the rubber grommet located at the upper right side of rear firewall You can see the trunk side of this grommet in photo I Once inside the rear trunk compartment secure the harness under the top trunk lip as detailed in photo I Note that the end of the harness ends up passing behind the trunk latch support as shown in photo J Power cable harness Prior to routing the harness make the following connections Connect the positive cable Red to the power distribution center by removing the nut on the farthest forward large distribution stud shown in photo K Make sure this connection is tight before moving on Connect the ground cable black to the bolt on the block that holds the engine ground shown in photo K Now that your connections are made secure your harness with tie wraps and follow the route detailed in photo L Your harness will pass through the unused rubber grommet at the top left side of the front wall of the trunk detailed in photo M Next route the harness following the route shown in photo N Wire and mounting of Soundgate interface Wire the Soundgate EXACTL
Download Pdf Manuals
Related Search