looking for some new subwoofers, what brand?

[cvfd1399 0]

I have 2 12'' rockford fosgates in a ported box each recieving 500 watts rms from it's own punch amp. I have never really liked the sound in loudness, or frequency range(it craps out on lows). I am looking to replace them tomorrow and want a groups opinons.
I am thinking get 2 more 12's or get 1 15'' monster with dual voice coils and power each coil off a seperate amp.
I have 2 500 watt rms each amps to power what ever I choose. What should I do? Ps this is going in the extra cab of a 2000 dodge ram. Thanks

[RevJim 0]

The last comp system I built was 4 12" MTX Black Gold's, in the trunk of an 89 Grand Am. Simple sealed box, and it hit 145 db it's 1st competition, unfinished, and took home gold.

Very tight, very clean.

If you are looking for decent punch and clarity, stay away from ported and 15's. Stay with 12's, set up sealed boxes, and maybe add a couple.

An added benefit of a sealed box, MUCH smaller area needed!

p.s. 4-10's will ROCK YOUR WORLD, and fit under most p/u truck back seats, if done right.

It's your life, live it!
Karma
RB#684 "Corcho", ASK#60, Muff#3520, NCB#398, NHDZ#4, C-33989, DG#1

[cvfd1399 0]

I have heard that mtx is pretty loud, how is the lifespan of the woofer? I am looking for deep and loud when you crank it and clean and full range at normal listing levels. The JBL gt150d 15'' has a spl of 94 dbs and a range of 20-400hz. That is pretty loud and pretty low imo. I am curious on how to use 2 amps on 1 dual voice coil woofer. I was told it could be done by using a meter to equalize both amps output so each coil is recieving the same signal?

[RevJim 0]

Don't do it.

Just don't.

The major funtion of a DVC subwoofer is the lower the impedence seen by a single amp. What would you rather have, a 2 ohm load via 2 voice coils and one 12, or a 2 ohm load via 2 voice coils and 2 cones?

Point is, there is a limiting factor on the amount of db a cone can produce, despite the power you throw at it.

Cone area x cone travel gives you your db level. You want more sound, add more cones. You want it tighter, seal it up.

It's your life, live it!
Karma
RB#684 "Corcho", ASK#60, Muff#3520, NCB#398, NHDZ#4, C-33989, DG#1

[Kris 0]

Your question is pretty vague. It's like asking what parachute to buy but giving no specifics.

Are you looking for raw SPL, do you want something with great musical quality, or are you looking for something in-between?

For SPL, go with Brahma, XXX, Kicker Solobaric, or Rockford P3's.

For a good mix, go with IDMax, Kicker Comp VR's, or Elemental Designs A series.

For pure sound quality it's JL Audio W6v2 or W7, Elemental Designs A & O series, Infinity Perfect, or Resonant Engineering's SE-series.

Of course, a lot will depend on what kind of enclosure and sub size you decide to go with.

Is that 500watts at 4 or 2ohms? What kind of amp? If you want boom, go with the 15, but 500 ain't gonna do much.

Provide some details and I'll be happy to offer an opinion.

Sky, Muff Bro, Rodriguez Bro, and
Bastion of Purity and Innocence!™

[Kris 0]

Quote

Don't do it.

Just don't.

The major funtion of a DVC subwoofer is the lower the impedence seen by a single amp. What would you rather have, a 2 ohm load via 2 voice coils and one 12, or a 2 ohm load via 2 voice coils and 2 cones?

Point is, there is a limiting factor on the amount of db a cone can produce, despite the power you throw at it.

Cone area x cone travel gives you your db level. You want more sound, add more cones. You want it tighter, seal it up.

Well, technically, you can run two amps on one sub. I've done it before. But the rest was spot-on. There's no replacement for displacement, and only more or larger drivers will give you that.

Sky, Muff Bro, Rodriguez Bro, and
Bastion of Purity and Innocence!™

[cvfd1399 0]

I have 2 Rockford fosgate 501s to work with
250 watts RMS x 2 at 2 ohms
500 watts RMS x 1 at 4 ohms in bridged mode
I am for pure low hertz spl!

[AirMail 0]

I think Acme is a good brand. It's the one Wiley Coyote always chooses.

P-

--
It's never too late to have a happy childhood.
Postal Rodriguez, Muff 3342

[RevJim 0]

I just saw the 20-400 hz in your post.

Ignore that.

The hallmark of a good sub installation is not being able to tell where the subs are. The lower frequencies are not directional, like mids and highs. Keep your crossovers at 120hz for a 18db or higher slope, under 100 for a 12 db or less slope.

Anything over that turns into directional sound, muddys the bass, and makes placement critical. Reserve the 120-400 range for a good set of 6 1/2 in mid-bass.

It's your life, live it!
Karma
RB#684 "Corcho", ASK#60, Muff#3520, NCB#398, NHDZ#4, C-33989, DG#1

[Kris 0]

Quote

I have 2 Rockford fosgate 501s to work with
250 watts RMS x 2 at 2 ohms
500 watts RMS x 1 at 4 ohms in bridged mode
I am for pure low hertz spl!

If you're determined to stick with that amp, then I'd go with off-the-shelf equipment.

Option 1: 12" Punch Stage 2 in this enclosure, Subzone Dual 12

Option 2, since you have matched amps, would be to get a 15" Solobaric, XXX, or Brahma in dual 4ohm configuration, run one amp on each coil, and throw that bad boy in a slot-vented enclosure tuned to around 38Hz. It'll crack asphalt.

However, with option 2, you're gonna need some serious front-fill and a lot of sound-deadening material. Otherwise, it'll be overpowering, and you're gonna just be a rattle-box with that much firepower.

Sky, Muff Bro, Rodriguez Bro, and
Bastion of Purity and Innocence!™

[atsaubrey 0]

I see your after SPL but consider this. I did a install on a truck just like yours. We used the MTX Thunderform which was load with 10's. i used a Punch 200 DSM and i absolutley shit my pants on how good it sounded. It wasn't necessarly SPL, but the sound quality friggin amazed me....nice and tight and very accurate. Since then I am 100% sold on the better MTX subs. I don't want to make up your mind but I will say sound quality is much more difficult to obtain than pure SPL. By the way the install i did consisted of the sub and amp mentioned, as well as a Punch4080DSM running on the factory speakers, along with an Alpine7618 and 6 disc changer. It was very simple, but i will to this day say it could have competed in the Novice class of USAC or IASCA and would have at least placed. I know this is all old school equipment, but then again I have been around since Maddisound SledgeHammers and Punch 45/75/150 Power 300/650/1000. Definately check out the Thunderforms, they take up 0 cab space and sound fantastic (with decent power)

"GOT LEAD?"

[leroydb 0]

i'll take the old ones off your hands

Leroy


..I knew I was an unwanted baby when I saw my bath toys were a toaster and a radio...

[cvfd1399 0]

My old RF 3412 12's?

As an update I went with the Kicker 12''L5 I am having them build a slot vent box with a 2.5 cuft volume. I am powering them with 500w rms/1000 peak(more like 750) I could only afford one right now, and will buy the matching one at a later date.

Right now I am debating on what to set the subsonic filter at and the low pass cut off at? I am going to be pushing it pretty hard, and do not want a rogue >20hz to slip up on me at a high volume level and bottom out the coils. The amp Punch 501s has a bit of a crossver on it.

[Kris 0]

You'll be happy with the L5's. Damn decent driver.

As for the subsonic filter, that will depend on what frequency your box is tuned for. Generally, a few Hz below that is where you want to be at.

My box is tuned for 38Hz and I have my sub-sonic set for 35Hz.

If you set it too high, you're defeating the purpose of a vented enclosure, too low and you risk damaging the driver with sub-sonic frequencies that the driver can't re-produce. Find the happy medium.

Sky, Muff Bro, Rodriguez Bro, and
Bastion of Purity and Innocence!™

[Paige 0]

Used to compete and have the loudest mustang in Ohio, here's what I suggest. Go wtih JL W-6's or something with a higher number. They are the best for low range frequency and don't crap out for anything. They also have a dual voice coil as opposed to the singular ones in MTX, or Rockfords. You'll spend some cash but I promise you'll love the sound quality, loudness (if that's what you want, with e 12's I would assume that is a requiset), and customer service at places that sell JL products.

I used to compete and my loudest was 159.7 decibles off the dash and outlaw competition (mic 6" from speakers) I would reach in the high 160's.

Go ?'s, PM me.

Tunnel Pink Mafia Delegate
www.TunnelPinkMafia.com

[Kris 0]

The JL's are nice, I'm thinking about dropping a pair of W6 or W7's in my car.

However, he's gonna need a new amp for those. Hell, I wouldn't touch a W7 unless I could throw at least 1200 RMS at it.

As for the dual voice coil vs single, it makes no difference in how reliable / good a speaker is. All it enables you to do is to have more flexibility when it comes to matching impedance.

For SPL, anything above a 165db is Holy Grail territory. The dbDrag record right now is 174.5.

Even barely getting into the 160's takes a shit-load of speakers, power, and money, so my hat is off to ya' Paige. That's one impressive stang.

Sky, Muff Bro, Rodriguez Bro, and
Bastion of Purity and Innocence!™

[SkymonkeyONE 4]

JL Audio makes what I consider to be the best speakers on the market. I have spent a lot of money on audio equipment over the years and have never had a single problem with any of the JL products I have owned in the last decade.

Chuck

[champu 1]

I can also say nothing but good about JL products. I built and installed a slot vented box with two JL 10W7s running off of one JL 1000/1 amp for a friend during one of my summers home from college.

you could see the walls and roof of his van bow.

Personally, I have a Kicker CompVR 10" in a 1.0ft^3 sealed enclosure which I am feeding 300W rms at 2Ù. A little more subtle, but hard to beat the performance for the size and cost.

[cvfd1399 0]

Well I got her running today and I am very impressed. I have the gains all the way down, and I am still working on the low pass cut off point, but running it at half volume it maxed out the cheap radio shack meter i have at 126 db. I cant wait to get another and get more air moving in there. With the windows down and my truck cab acting like a bandpass, the lows must get a 10 db boost! They said that there is a 2 week break in period before the rubber surround takes shape and the speaker makes its best sound.

[FIREFLYR 0]

A pair of kicker Comp 12's is the best Bump for the buck.
I have a pair of Aluma Pro"s though for cleaner sound.
Get the wattage in your amps or your wasteing your money.
My 2 cents
~J

"One flew East,and one flew West..............one flew over the cuckoo's nest"
"There's absolutely no excuse for the way I'm about to act"

[Paige 0]

Quote

Even barely getting into the 160's takes a shit-load of speakers, power, and money, so my hat is off to ya' Paige. That's one impressive stang.

Well, thanks. It was one hell of an investment but I was in a car club so that helped. We'd go to shows, have sponsors, and let me tell ya it didn't hurt one bit that I was the only girl on the circit that had anything to brag about

Tunnel Pink Mafia Delegate
www.TunnelPinkMafia.com