BMW side trunk enclosure for JL W3V3-4 by LBaudio

[LBaudio]

I started with fabrication of sealed SW enclosure for JL audio W3 v3 driver which will be mounted in the left side of the trunk of BMW F30. Enclosure will be built to JL audio specs for this driver which is 19-20 Litre sealed. Back side of the enclosure will be made out of fiber-glass, baffle will be made out of plywood.....now onto pics


The driver - JL 10W3v3-4






car's side was protected with painters tape and Alu tape over it, waxed with Rexco demoulding wax









car was also protected





first layers of Fiberglass were layed down

[LBaudio]

4-layers total,....left it a couple of hours to cure and then removed it with a bit of brute force, lol






Then I made a quick volume test....20 litre+






and a few pics of the mold







I made a cardboard template for baffle

[LBaudio]

enclosure walls were beefed up and a layer of gel coat applied to the inside of the "mold".
plywood speaker baffle for driver was made and fit tested. Enclosure will also receive a layer of Silent Coat damping mats. ...so a few pics:






cardboare template





Test baffle - it fits so-so good, I will need to make small corrections , but nothing major

[LBaudio]

Made a new baffle that fits a bit tighter to the mold



speaker ring design






back side - edge was chamfered






speaker ring glued to the baffle and soaked with polyester resin



T nuts installed and glued in place with superglue



Test fit - driver to baffle, baffle to mold

[LBaudio]

Damping on back wall - later all sides will be damped with Silent Coat damping mats



ring and baffle protected with alu tape





test fit in a car





baffle on some parts glued to the mold with filler with strands




seams between mold and baffle were taped of to prevent resin to drip on front side - fiberglass was added from inside of enclosure to make strong bond and good seal

[LBaudio]

I put a small mirror in the box so I could see what Im doing...



this is where im at at the moment. Today I must finish with fiberglassing baffle to the mold from the inside of the enclosure
Enclosure walls were completely dampened with Silent coat damping plates, all enclosure edges were cleaned and a few small imperfections were smoothed out with filler.
after that enclosure was wrapped in black 4D stretch vinyl....


Damping inside of enclosure






enclosure edges cleaned up

[LBaudio]

wrapped in vinyl






finished

I decided to sort cable for SW....The cable is 4mm2 from GZ, I put it in snake-skin for protection and looks, sorted termination and added XT90 connector for quick disconnect.

[LBaudio]

Over the weekend I ended this small install.... All power cables and speaker cable were put in snake skin and terminated. Fuse was installed 40 cm from the battery, enclosure was bolted down to the cars chasis, fiberfill was added inside of enclosure, amp installed and everything wired up and tuned. Subwoofer still need some time to break in, after that I will do final tuning. So far everything sounded pretty decent... Onto the pics:


Cables in snakeskin and terminated and fuse added






Amplifier installed and connected




Enclosure was bolted down to the car chasis





Fiberfill was added to enclosure

[LBaudio]

Driver installed...and project finished

[BigAl205]

Wow, that looks outstanding!