Dvc Sub, 2 Amps? Opinions/facts?

[blk94r33]

Hi all,

Looking at upgrading my system again, taking out the current pair of Eclipse SW6010 subs, and replacing them with either a single or pair of good quality 12's in the aim of getting more bottom end bass, but retaining as much clarity as possible. (Most likely something from the P3 Rockford Fosgate range)

Now, am I better off to go for a single 800w rms 12" possibly in a ported box, or a pair of 400w rms 12"s in a sealed box? Does extra power actually make more bass, or does cone area/displacement make more difference? I'm not fussed which option I go with, just wanted some experiences/facts.....

Also, has anyone run a (what will have to be) a DVC 2 ohm sub off 2 seperate amplifiers? (I understand that the gain and frequency need to be exactly matched for each voice coil) As I currently have a pair of Pioneer GMD7400M amps running the subs, and don't want to change them out or buy another if not absolutely necessary, which will give me the 800w rms to play with...

Opinions?

[Carbon 34]

Hi all,

Looking at upgrading my system again, taking out the current pair of Eclipse SW6010 subs, and replacing them with either a single or pair of good quality 12's in the aim of getting more bottom end bass, but retaining as much clarity as possible. (Most likely something from the P3 Rockford Fosgate range)

Now, am I better off to go for a single 800w rms 12" possibly in a ported box, or a pair of 400w rms 12"s in a sealed box? Does extra power actually make more bass, or does cone area/displacement make more difference? I'm not fussed which option I go with, just wanted some experiences/facts.....

Also, has anyone run a (what will have to be) a DVC 2 ohm sub off 2 seperate amplifiers? (I understand that the gain and frequency need to be exactly matched for each voice coil) As I currently have a pair of Pioneer GMD7400M amps running the subs, and don't want to change them out or buy another if not absolutely necessary, which will give me the 800w rms to play with...

Opinions?

your amps are mono, you can run both to a DVC sub but you can get crosstalk bleed , and without someone setting up the amp gains exactly you might be fighting agaist the other ? those amps dont have sync cables to strap them together .

you box will make or break the install and sound . a generic box on a T3 will sound worse then the Eclipse subs.

cone displacement can make a difference, but so does the box, the Xmax of the voice coils on the sub, .

so I guess it comes down to you budget for a box and how much room you want to loose ? on what model car?

the T3 would rock but they need the right enclosure and boat loads of power .

you can get a pair of 6" in a tiny 7th order (dual reflex)bandpass box to get lower then a 12" sub in a generic box so the box is a huge factor

if you got 2 - 10"DVC subs, with 4ohm coils , wire in parralel on each sub to 2 ohm load, your amp could put out a max of 800watts. so 1600watts from 2 amps at 2ohms. best option

http://www.rockfordfosgate.com/products/product_details.asp?item_id=120420&locale=en_US&p_status=

and for basic box plans use the box wizard for rockford PUNCH T3.

http://www.rockfordfosgate.com/products/product_details.asp?item_id=120420&locale=en_US&p_status=

if you wanted something better box wise you should use a single reflex ported box, with no bass boost on the amps. take slightly more room but hits hard as hell. with the combo you have , over 130db would be fairly easy . and punch hard and fast on drum kicks, plus protects the sub from getting loose and frying .

your power question, everytime you double your power you "could" get up to 3db louder, but its not always the case, to go from 130db to 140db takes thousands of watts extra in most cases with the same driver/box/car

2 subs could double the SPL by 3db but once again not always.

going from a sealed box to a spec designed single relex box will with the same exact power and driver, make the spl go up by 6-24db unless you cant get the sound into the cabin, . its a huge difference . double reflex even louder but can eat drivers if not ported and xover wrong.

bass waves can be calculated by a formula to tell you how loud and what freq. you will make it at in the front of the car. which is why you can hear a boom car coming for miles, the bass waves expand the further away you get, treble falls off fast. .

my brothers old honda CRX install had a old first generation punch 10 DVC with 400watts max on it, in a single reflex Tube. and it set off a building alarm from car park , the SPL shaking the glass that much the sensors set off the alarm ...!!!! but that car hatch shape enhanced the SPL it could hit 132db on the Old Audiocontrol RTA