jak

Here are some pics of my install. This is the dash:

Alpine 760 screen
Sony XE-744 EQ
Alpine 7996 DVD/CD/MP3

Total line level specs:
S/N = better 102db
THD = .08% or less
Dynamic range = 95db

Jeff

jak

Picture of the sub location. Net = 5.5 cubic feet.

CaneZMD

iTrader: (1)

Looks good man. That Alpine display really fits well.

jak

Pic of the sub location and custom designed passive, impedance, and phase compensated crossovers. Also video control module and rear camera hook-up.

jak

19 oz of acoustic fill.

jak

Wider shot of fill. Enclosure is completely sealed. The only air leak area was around the seat belts which now has a custom rubber boot.

jak

Pic of one 10" Scan Speak 25W/8565 woofer. Sealing and damping the mounting plate.

jak

Two subs installed wired in parralel. Frequency response flat to 33hz. Smooth roll off around 8db per octave placing the 3db down point at 25hz.

jak

Precision Power amp location.

jak

Finished product showing new tweeters cut.

Blue350zCali

Damn, the setup looks very nice. Very jealous here.

fotodad

Wow! I mean WOW! I mean Holy Sh#t WOW! What an incredible installation! I'll bet it sounds even better than it looks. Questions: Did you make all the speaker and equipment mounting kits or are they available at stores? How much did all that cost you? Did you install it or a shop? If you did, how easy was it to install the eq and head unit in the dash? They both look factory! I'd like to get rid of my Bose crap and install new head units, but I'm worried about opening the door to rattles. have you experienced any rattles or is the install as sound as the day you took delivery?

Nice job, buddy.

Michael

MSGarrett1

jak, got a question for you . . . . does your DVD only play when the parking brake is on? I'm not implying that you would actually play any video recording in the front seats of a moving vehicle, because that would be illegal, BUT, if you wanted to, could you?

jak

fotodad,

Thanks. I am very pleased with the sound quality. It is very smooth, natural, transparent, and the stereo separation is really more than I expected.

I did the complete install myself. I computer modeled the entire system and components prior to the final selections and installation so I had a good idea about the end result.

The dash mounting kit is a Metra 99-7402 and is available online. The rear subwoofers are mounted on the stock Nissan bracket plates one of which already comes with the car behind the drivers seat. Nissan did a wonderful job in designing this area of the car. Everything from left to right is interchangeable. Another words, if you wanted the glove box behind the drivers seat, no problem. All of the holes and cut outs are identical behind either seat. I went to the Nissan dealer and bought another speaker bracket for $26.00 and it bolted right into the glove box location. No modification.

The small speakers behind the headrests are standard 6 1/2" and bolt right in with no modifications. Nissan has a .35 cubic foot enclosure for those speakers. I cut a 3" hole for the tweeters and mounted a passive crossover inside the enclosure.

The door speakers were the most difficult. The window will role down into the magnet of the speaker unless you go with a slim depth speaker. Unfortunately there are not a lot of slim depth speakers that will operate in that location. What I did is select the best component to fit the stock location acoustically but the speaker that was selected was standard depth and interfered with the window. I devised an ABS mount, plastic welded to the stock ABS bracket. The mount was cut at 13 degrees tilting the speaker towards the driver and passenger thus tilting the magnet away from the window.

I also did in dash flush mount 1" soft dome tweeters and abandoned the 3/4" tweeters in the door pillars.

I designed and built all of the crossovers tailoring the response to the cabin of this car.

The dash components were easy to install. Everything was removed and I installed the screen, EQ, and head unit in the house on a bench. The hardest part of that is keeping track of the screws and how it went back together.

There are no rattles as a result of the install. The dash, other than the shifter piece and the top of the gauge piece all bolts in. The door panels are bolted at the handles and opener and the only snap clips are around the edges. There really isn't a lot of opportunity for rattles the way Nissan has everything bolted in.

The only rattle I had to deal with was due to the extra bass and the stock speaker grills vibrating. That was an easy fix. Everything is as tight (some spots tighter) as it was when I bought it.

Jeff

jak

MSGarrett1,

Oh no, I would never do that But yes I bypassed the parking brake.

Jeff

POWERZ

The sub area is quite large at 5.5 ft3! Are the subs you chose designed to work well in such a large enclosure?

jak

PowerZ,

You are correct the area is large for most 10" speakers. I think I found only three or four 10" speakers that would work properly out of 30-40 speakers speced.

The enclosure volume is more suited to a pair of 12s but would require some creative modification to get them to physically fit.

In any case a single speaker of any size other than a 18" or possibly some 15" won't work in that location unless you are thinking of a free air situation.

Jeff

spiroh

Very ncie install. Do you think 10w7s could fit there. If you dont mind can you take a pic with the units on? How did you exactly install that screen to the alpine head unit? AI-Net? How much dynamat/deadener did you use? Scanspeak make great subs/comps, im sure it sounds excellent.

jak

spiroh,

Thanks for the compliment. I will try to get a pic up later tonight with the system on. It is neat because both the EQ and Alpine can illuminate orange.

I used the supplied screen bracket of the Alpine 760 and attached that to the dash peice with four screws. I had to do some cutting to the Alpine bracket to get it to fit right and drill four holes for the screws.

I used 28 square feet of Fatmat which was quite a bit cheaper than the brand name Dynamat. www.fatmat.com

Who makes the 10w7s? JL right? I would be happy to size those for you if I have specs.

Jeff

spiroh

Nice. I use peal and seal. Pretty good stuff. Are you using Scanspeak components up front? Revalators?

specs on JL 10W7

Dimensions:
Frame Diameter: 10.5 in. (267 mm)
Mounting Hole Diameter: 8.74 in. (222 mm)
Mounting Depth: 8 in. (203 mm)
Overall Depth: 9.63 in. (245 mm)
Magnet Diameter: 6.55 in. (166 mm)
Pole Vent Clearance: 0.75 in. (19 mm)
Displacement: 0.09 cu. ft. (1.78 ltrs)

Enclosure Recommendations:
Sealed Range: 1.00 - 1.375 cu. ft. (28.3 - 38.9 ltrs)
Recommended Sealed Volume: 1.25 cu. ft. (35.4 ltrs.)
Fc: 44.7 Hz
F3: 40.7 Hz
Qtc: 0.785
Ported Range: 1.125 - 1.5 cu. ft. (31.9 - 42.5 ltrs)
Recommended Ported Volume: 1.5 cu. ft. (42.5 ltrs)
Recommended Tuning: 32 Hz
Port Type: “Slot” ports are recommended. See Data Sheet for detailed info.


they like a 1.4 each box size. If i had to, I would fill up the box until I get the right volume.