Sub install done. Exactly like yours. Sounds great! Pics coming later today.

Question: What do you have your low pass filter set at? 100hz, 80, etc.? Also, are you using the "bass" control on the nav unit to increase the bass, or the gain on the amp? If so, tell me where you're putting yours. I've only had about 5 minutes in the car since it was finished, so I need a baseline.

I was gonna do this install soon, but I took to the shop and they said I would have to relocate my sirius receiver. Did you guys have to do this and where did you put it? I use the surius, like it, so am not gonna just toss it out.

Noog you use same components as Canuck? I was looking to do JL Audio....

On mine we just relocated it to above the rear driver's side wheel well. It took all of 3 minutes.

Hey Mickf,
Used the exact same stuff as Canuck. The sirius module just screws/velcros on top of whatever type of box is built. There's tons of room for it.

I'll post pics later today.

Hopefully the installer will email me his pictures. These are a few I took tonight.

Same hardware as Canuck. Hertz sub and Alpine monoblock. I know if a US Hertz dealer in California if anyone needs his URL. We painted the hertz grill though. I didn't care for the silver inlays. Black vinyl trim (he's actually making me a carbon fiber one next week) :)<ul><li><a href="http://www.cbslimited.com/rs4.php">Pics of new Sub.</a></li></ul>

If you check out my pics, you'll see that the sirius receiver is screwed on top of the sub box. No need to get rid of it IMO and I would NOT do this mod if i lost sirius, i'm addicted sadly :)

I started off thinking JL mainly because they had new sub with very shallow mounting depth to replace the stocker in the rear deck. Problem was that the TW5 JL sub is not an infinite baffle sub, and it is way too big for the OEM hole which is about 10" in diameter. My local installer had Hertz subs which are awesome build quality and I just loved the look as well. The alpine amp was a simple choice because it would fit neatly under the carpet in the trunk with a little trimming of the styrofoam. I'm not aware of many other amps that will deliver &gt;600W RMS and be that slim at the same time. Additionally my installer had nothing but good things to say about the alpine amps for what its worth.

My imput gain is set to 0.1-1.0V and the LPF is set to 100Hz. I'll check on the LPF though, i left it where my installer set it initially.

I have left the bass control at default setting for now, using the gain on the amp to increase bass. I'm not sure if it is better to use the RNS-E to control bass levels or the gain on the amp.

Did you remove the stock sub?

No, just left it there. Guess it's not going to hurt anything.

The install still hasn't emailed any of the box to me. Don't even know if he took any. My box is all fiberglass with the exception of the main front panel made of MDF. He built a frame and layed fiberglass on the back half and sides. The trim piece "snaps" in place and is covered in vinyl (soon to have a carbon fiber face). I have the amp in the exact spot that you have it.

I think it turned out really clean looking. I'm happy with the sound, but I'll need to mess with it. Sometimes it's so strong it vibrates my teeth, other times it perfect. Definitely much "tighter" than the stock Bose sub. No rattles so far. I've even cranked it up and listened outside. It sounds tight. Canuck, you did your homework. That combination is perfect for what we need.

Only difference is I don't have ANY wires going to the nav unit. I have a relay switch in place that detects signal from the ignition. The only problem (or not problem) is that it is SOOOOOO sensitive, opening the trunk turns the amp on due to fluctuation in voltage from the light in the trunk. He's gonna put an in line diode on it, but it's not even necessary since the amp will go out again in a few minutes since there is no signal coming from the nav unit. It's just that sensitive.

thanks for the info Canuck! I will look at ordering the Hertz sub, since I can't seem to find a distributor here. Alpine are good amps, but I was thinking of mounting on the face of the protective barrier under the trunk carpet and foam insert. Looks good there, fits, and is tucked away.

Got my Hertz from ROB. Super knowledgeable guy.

http://www.caraudioinnovations.com/

Just mention me and the RS4....he'll know.

Yup, I'm in Lancaster, SC. About 25 minutes South of Charlotte.

GMP? or do you mean CMP in Kershaw?

Nevermind, I found info on it. I'm actually an instructor for Turn One. Hate I didn't see that sooner. I'll be out of town next weekend. :(

You going to CMP on Sunday for the Drivers Ed? Wife says we'll be back on Saturday evening. I'll swing by the track Sunday if you'll be there.

Any time man! Took Jr. to pre-school this AM. The sub is sounding even better since it's breaking in. Definitely a mod that's worth the money.

It's a relatively easy mod, because someone else does most of the work, but it adds great depth to music that isn't there with the factory bose sub. I find myself listening for bass all the time now ;)
I also notice each song is a little different, especially different bitrate songs that i have on my SD card will turn out more/less bass depending on the song.

You can now hear huge differences in the bitrate. I even have some duplicate songs with different bitrates and while the highs/mids differences don't stand out so much, the bass levels do big time.

<ul><li><a href="http://www.the12volt.com/installbay/printer_friendly_posts.asp?FID=2&amp;TID=85479">How To Set Gains</a></li></ul>