Stereo Question????
 

Hey guys I have a 1989 Formula 272 i've already put a new head unit ,Infinity 6.5's and Infinity 6x9's.I'm getting ready to put a couple subs in and just want to see if anyone has put them up the sides of their boat,and how they sound.I two 10in subs that i'm going to put about 1500 watts to.I have storage that goes up each side and am thinking about putting them in truck style boxes and putting up towards the front.Anyone done this,wonder how it sounds and how good you can hear it..Thanks Guys

ive installed free air and isobaric boxes the due sound good, but keep a screw driver handy for all the loose screws

There's a boat locally here that has 2 10's in each gunnel and sounds really good. He removed the panels and built enclosures for them though...

I tried to do that in mine but couldnt' get the panels off. They must be glued or siliconed on because they wouldn't budge. I ended up putting 4 Kicker marine 10's under the rear seat that sound okay...

Well i'm hoping it works,I think 1500 watts will get it done right???:drink:

What 10" subs are they?

JL W6's..........

you have plenty of headroom putting 1500 watts into an 800 watt load. You'll never even stress the amp. Which amp btw?

Audiobahn.....It's a pretty bada$$ amp to,it has the custom flame chrome cutout on the top.The whole amp is chrome and black.I'll get some pics up when I get home...:evilb:

which model?

Here are the specs.....

AUDIOBAHN A2300HCT
600 Watts x 2 Channels RMS @ 2 Ohms
1200 Watts x 2 Channels RMS @ 1 Ohm
2400 Watts x 1 Channel RMS @ 1 Ohm Bridged
This is close to what it looks like,but underneath the flames is gloss black and the flames are chrome...I think this amp is a little over kill but this way when I want to upgrade the subs I won't have to buy another amp.....
http://i10.photobucket.com/albums/a1...n/A2300HCT.jpg

From what you told me, you should have dual voice coil speakers, each coil at 4 ohms. Wire the two coils in parallel, that will yield a 2 ohm load for each speaker and wire up each speaker to each channel (no need to bridge). That will pump 600 watts into a 400 watt rated speaker and that's fine. You'll probably won't clip the amp unless the setup doesn't give you the low end you desire, or you're just plain deaf. Food for thought. With that amp bridged, you could put 2 1200 watt speakers with dual 4 ohm voice coils as well. You'll also need capacitors for your battery line. The average is 1 Fahrad for every 1000 watts. Good luck with the boom-boom!

So if I upgrade later to 12' JL W7's then I would be ablr to run 1200x2??????Is that right i'm still working all this stereo stuff out and you seem pretty knoledgable...

The big problem of upgrading to 12's is the cabinet volume. The 12's need about double (1.3 cubic ft) to properly function. In a sealed cabinet setup (recommended) that measurement is for sound quality, but it's also the an additional suspension system for the speaker. Those 12's are a little funky being a 3 ohm speaker, and the wiring setup would be a little different, but you have more than enough power. Your problem is getting the speakers in there. You'll probably have to sacrifice your bench seat if you want to do it properly. My advice is stick to one size of speaker from here on out, and because of the space involved, 10's will probably be your best shot. The ones you picked only need around .6 cubic feet to be properly controlled.

The boxes I'm looking at are .97 and should fit ok...Who else makes a real good 10'? I think Audiobahn actually has a 10 that will handle 800-1000 watts right????

Hey Unsane,since you seem to know alot about audio,quick question.I have in my boat now a pair of Infinity 6.5's,70W RMS,210W Peak,and a pair of Infinity 6x9's,100W RMS, 300 Peak.To put some power to thoose speakers I'd need a 4 channel amp that's at least 350x4 RMS at 4ohms????:confused: Please help me out....Thanks

you don't need that much power. Something that makes about 100 to 150 a channel at 4 ohms should be more than enough.

There are several 10's that can handle close to 1000 watts including several by Audiobahn that can hold 1000 or over. Check out Fosgate and Kicker as well.

So if I get an amp the is 100wX4 rms,that means the amp is putting 100w into each speaker,right?How much difference do you think it'll make???It just has a head unit and no other amp...

here is what I have in my 223

2 8" Memphis audio subs
4 Pioneer 6.5's 4 way
2 6x9 4 ways
Fosgate punch 200 for the subs
Pioneer 100x4
Alpine Cd/mp3 (2nd from the best or so)

My subs are placed in truck boxes in the location you are talking about.

I wouldn't think truck style boxes are going to have enough room with the size of the magnet on W6's I doubt the will fit into a truck box that will fit in the storage area you are talking about, I wanted to use my w6 12's in that location and they where way way to deep. Like unsane said wire them in paralell. The w6 10's sound great, if you havent bought them yet you could always go with 4 10" subs with a smaller mounting depth and it would still sound good


Im adding either 2 10" Memphis audio subs in the same location in front of the 8's or putting one of the 12w6's somewhere like where the porta poty goes or under the rear bench, I am using the M-class sub designed for small spaces


http://www.memphiscaraudio.com/

http://mobile.jlaudio.com/products_subs.php?series_id=6

I was actually just thinking about that,time to do some real accurate measuring...:( It will all work out in the end though,if they don't measure I have someone ready to take the stuff off my hands at a great price,and I'm actually condidering it anyways because of the offer.I got they stuff at a steal of a price,someone owed money who owed me yada yada yada....So if I do sell,here's what I'll do,I'm picking up a 4 channel amp,I think it's 85X4 rms at 4 ohms for cheap.So i'm going to put that to my 2 6.5's and my 2 6x9's,so that should sound good.Then i'm still doing the truck boxes with 10's,I have a set of MTX 10's 300w RMS,and still do the audiobahn amp.I think either way I go is a great START :D .Hopefully one day I plan to put another set of 6X9's,so i'd have 4 6x9's under my rear seat and then in the middle of the 4 6x9's put a JL W7 :drink: .I'm going to need more batteries...............:evilb:

that sounds like a plan, I was thinking about adding a second set of 6x9s but only if I go with the second set of subs. You could pick up a second set of the MTX 10's and run them all off the audiobahn

Yeah looks like the JL's are out,there 6.9in deep.The side compartment is only 7.5in deep and with the style box I have to use they don't fit....:( . Well I guess i'll do the mtx setup for now....

JL is coming out with a new 10" marine sub that is modeled after their free air sub, but requires a box that is really small.

Can you add a ring on the outside to set the sub out further giving you room on the back side?

The amps built into the head unit suck big time! An outboard amp, make sure it's a Class A/B, will sound a million times better. Do not use a Class D amp for your mains...they're better as sub amps. Class D can't accurately reproduce high frequencies and will introduce a lot of distortion into the signal. That's why headunits sound very harsh on the high frequencies when turned up. The amp is worth it!

I have a friend of mine that's going to sell me his 4 channel amp out of his 350Z,it's 85x4rms....so that should sound like day and night compared to now.....

i have 4 12' kicker marine subs and 8 6.5' kicker marine speakers with tweeters all that is powered my 3 of the 2500 watt kicker digital amps and they fit perectly and sound amazing the bass shakes the water next to the boat, but you need to make sure that the subs are marine grade cause if ur not ur constently worrying about getting them wet when you are washing the boat down or taking a wave over the bow the other thing about the kicker subs and speakers that no other brand does is good styling, the white plastic covers that the other brands use tend to yellow and dont look as cool