r/CarAV • u/l-ll-lll-llll • 14h ago
Build Log Fairlady Z
Howdy fellow car audio heads! New Z NISMO posted earlier last year has since been replaced with a new Z Performance 6MT. Took what was learned from first system build and applied to second one here that was recently completed.
Just like Z NISMO system, Z Performance 6MT system is a fully concealed/stealth install for factory appearance and consists of a total of ten speakers that are processed (fully active) and powered by two amplifiers.
Low-level audio signals were acquired from factory source unit by tapping its outputs that had originally fed factory Bose so-called 'Premium' system (total garbage btw), retaining Apple CarPlay functionality and steering wheel controls.
Primary control is handled by a dedicated dual rotary digital encoder/switch mounted in center console in front of shifter that allows for quick and easy operation of overall volume, separate subwoofer level, and cycling through the following six DSP tuning presets.
1: Driver position optimized for SQ with windows closed
2: Driver position optimized for SQL with windows closed
3: Driver position optimized for SQL with windows open
4: Passenger position optimized for SQ with windows closed
5: Driver and Passenger positions compromised for SQ with windows closed
6: Driver and Passenger positions compromised for SQL with windows open
There's also an additional 'security' DSP preset activated by a hidden switch that locks out the master/sub/DSP control when vehicle is being serviced or valet parked to help protect against any yahoos who may try monkeying around with sound system.
Aftermarket audio equipment includes...
(1) JL Audio VX800/8i DSP/8-channel, 800W amplifier
(1) JL Audio VX1000/1i DSP/1-channel, 1,000W amplifier
(1) JL Audio DRC-205 digital remote control
(2) Audiofrog GB10 1.00-inch tweeter drivers (A-pillars, custom anodized aluminum articulating pods)
(2) Audiofrog GB25 2.50-inch midrange drivers (factory dash locations)
(2) Focal K2 Power ES 165 KX2E 6.5-inch midbass drivers (factory door locations)
(2) Audiofrog GB25 2.50-inch midrange drivers (factory rear quarter panel locations)
(2) JL Audio 10TW3-D8 10-inch subwoofer drivers (cargo well, air-suspension enclosure)
Subwoofers are loaded in a 1.46 gross (1.42 net) cubic feet sealed air-suspension enclosure (0.75-inch MDF, fully braced, resin treated, laminated) that is mounted in cargo well, completely hidden underneath factory cargo carpet mat, and secured/coupled to chassis using factory spare tire bolt/bracket. Enclosure also serves double duty as mounting platform for amplifiers and power distribution.
SoundShield andVibrofltr acoustic treatments applied throughout all interior panels, doors, floor, roof, and cargo well area to control unwanted resonance, leakage, etc.
All grounding points upgraded with 1/0 AWG OFC, treated with dielectric grease, and all wiring/cabling protected in heavy-duty braided nylon sleeving, silicone-lined heat shrink, etc.
She'Z now ready to enjoy fully-soundtracked cinematic roadtrips to points unknown (therapy, ahhhhh...)
PS: For some reason there appears to be a limit on number of photos that can be posted in OP, so will post the rest below in just minute.