View Full Version : Sub Installation?

04-14-2009, 09:42 AM
I want to put a sub in my LSV but need to keep the cost down. I have a 10" sub and was just going to buy a cheap box for it and put it under the glove box area. Does anyone know the best place to put it? I am open to any suggestions about this topic.

04-14-2009, 10:21 AM
my box fits sideways under the glove box pushed up between the hull and the front seat.

04-14-2009, 10:36 AM
How big is your box? What do you have in it? Did you just slide it as far up the hull as possible. Which way did you face it for the best sound. Sorry for all the questions, but I am just looking to add a little bass to my all treble stereo. One more, Did you bolt it down or just jam it in so it won't move?

04-14-2009, 10:41 AM
Get yourself a 10" sub that works in the 3-400 watt range, the Kicker Comps, Memphis Audio, Rockford Punch are some that come to mind. Mount it in a .75-.85cf box made of mdf and mount it on top of the drivers kick panel/footrest facing the hull.

Not only will it be out of the way but it will sound real nice bouncing off of the hull. The sound will disperse evenly around the boat and it can't get wet. I know this as mine is this way currently and works very well.

04-14-2009, 10:46 AM
Thanks Razz, I have an old JL W10 that I was going to put in. I have 3 of them but was just going to put one in the boat. Do you know where I could buy a box with those dimensions without making one? I also, have a 07 Mobius LSV and love it but the factory system just has no bass.

04-14-2009, 11:27 AM
I just got these 800W subs for $25 each for my motor home but they are 12". Need to hurry to get the 2 for 1 sale. I put my stereo from the boat into the motor home and lost all of the bass. Not a good thing.


04-14-2009, 11:27 AM
You can get a box like that anywhere, they are the most common in fact. Any stereo shop will have them. ebay is flooded with them. Here's one:

10" Subwoofer box (http://cgi.ebay.com/Single-10-inch-3-4-MDF-Subwoofer-Enclosure-Sub-Box_W0QQitemZ220395407890QQcmdZViewItemQQptZLH_Def aultDomain_0?hash=item220395407890&_trksid=p3286.c0.m14&_trkparms=72%3A1205%7C66%3A2%7C65%3A12%7C39%3A1%7C 240%3A1318%7C301%3A0%7C293%3A1%7C294%3A50)

You'll need an amp to gain the bass, but if your just after the bass then any average two channel will do it for you. Here's a new Rockford when bridged puts out 250W for $104, these drive your average 10" sub real nice:

Rockford Fosgate Punch Amplifier (http://cgi.ebay.com/Rockford-Fosgate-Punch-Amplifier-125W-x2ch-2-OHMS_W0QQitemZ200331142529QQihZ010QQcategoryZ18795 QQtcZphotoQQcmdZViewItemQQ_trksidZp1742.m153.l1262 )

04-14-2009, 11:36 AM
Thanks, so you think that will fit over my foot plat under the stearing wheel? I ask because my boat is about a hour away.

04-14-2009, 11:40 AM
What do you think about this one Razz?


04-14-2009, 12:01 PM
That's a truck/backseat box. You'll want as short in height as you can get. I wish i could get a shot of mine for you but that's not possible until tomorrow at the earliest.

04-14-2009, 12:03 PM
Thanks, so you think that will fit over my foot plat under the stearing wheel? I ask because my boat is about a hour away.

I know for a fact they will if you have the correct height box. Mine perches on top of the footrest with the sub facing the hull. It's backed up to the heater hose and right next to where the wires go into the footrest. There are two brackets (top/bottom) holding it into the footrest and dash structure.

04-14-2009, 12:27 PM
What kind of brackets did you use brazz?

04-14-2009, 12:41 PM
Galvanized steel, works fine unless your in salt water. If your in the seat looking at the footrest the box sits on top and the side of the box is flush with the footrest face. The bottom bracket is L shape and attaches the box to the top of the foot rest nad the top is flat and attaches to the dash structure. make SURE to wire before you do it or you'll never get it wired! LOL!

04-14-2009, 12:43 PM
Thanks man, going to gather supplies this week and head up next week and will let you know how it goes. Post a pic when you get a chance if you don't mind. Did you run an extra battery?

04-14-2009, 12:45 PM
NP, will do.

04-14-2009, 01:07 PM
Razz, not sure if you saw it in my last post but what did you do about adding a battery or did you?

04-14-2009, 01:24 PM
I added a group 27 marine batt in conjunction with the Blue Seas 7610 ACR system to maintain it.

04-14-2009, 02:06 PM
How did you go about connecting both batteries to the boat? Did you add the switch deal? If you did, how much did it cost?

04-15-2009, 01:44 PM
Razz, I bought a box that is 12.5x12.5x12.5, I figured this would work?

04-15-2009, 02:11 PM
That would have a volume of .77 cf based on .75" thick material. Generally perfect for subs in that category. Make sure to check your sound before you bolt it up on the footrest so you can add filler if neccessary as it's impossible to do once it's there, that is if you point it at the hull.

04-15-2009, 02:15 PM
How did you go about connecting both batteries to the boat? Did you add the switch deal? If you did, how much did it cost?

Here's what i used to combine, correctly charge and disconnect when parked while listening to tunes, the Blue Sea 7610 ACR.

04-20-2009, 04:20 PM
Razz, what did you mount all that stuff to? Nice job and looks great.

It looks like your gear is mounted on the starboard (right) side of the obserever seat storage area. On my boat the carpet is attached to a thin piece and I am afraid that if I mount to it I will have screw points poking out in the walk through. Did you add a carpeted mounting board?

Thanks in advance for the feedback.

04-20-2009, 04:35 PM
Robert, that wall is factory with a what i've estimated is a 3/4" piece of plywood glassed in. I added the inverter, Blue Seas ACR & Switch, additional thermal breaker and the dealer added the amp (which is now gone) so i think i'll move the inverter up to the amp locale.

The new Kicker amps are directly accross the compartment from where they were.

04-21-2009, 08:26 AM
Razz, How long of screws did you use to hold everything down? Where the sub is and where the amps go?

04-21-2009, 08:47 AM
If i remember right they are 1/2" screws. Make sure yours is the same before screwing anything there! Look under the spotter cushion and the plywood inner wall ends there, you can pull the carpet down gently and measure. Because it's glassed in you'll need a pilot hole, use one or two lower than the screw.

04-23-2009, 01:15 AM
A little late but I wanted to share my recent experience with a sub box install. I used a JL Audio pre-manufactured box. It was originally designed to be a rear-firing truck box. The slanted portion of the box, when turned upside down and backwards (yes... I meant to say that) slides nicely up against the footplate at the driver's feet. Click the link below to see the box. I noticed your interest in keeping it inexpensive. This was a great value and sounds fantastic.


You can see some photos on my posts on this thread:

04-23-2009, 11:24 AM
Thanks, I am going to try and mimic Razz's setup tomorrow and we will see how it goes. The setup you have does look like a viable 2nd option though.