140* dbs in ae92 fxgt?

[tomo1985]

140 can be done you just need more power alot more. 140db is a nice figure but the fact is there are very few places that you can listen to music at 140db. Its once thing to get high DBs its another to make it play that loud all day long.

[Flyboy]

In my opinion its not worth having a stereo doing 140+db all of the time..

Ive been in my car when we were tuning for the last comp at an average of 141db...

And my guts werent the same for a week...

[ignition22]

to drag up an old thread for fun

i believe... you can get 140db with those two subs. Shame all the viper amps sheryl was selling have gone. With the right box you would have got 140 fairly easy all tho i dont like your subs chances of surviving a comp with it.

[Audi]

Fusion subs. Interesting. With decent subs, amps and box is it possible to get sustainable above 140db , ie not just a burst?

[DeeCee]

Yes - though its not very good for hearing of course.. it'll cause loss of hearing fast!

As long as you have the right amplification, a decent box and decent subs that can take the power then you can reach over 140dB at sustainable levels.. though i don't see why though.. i'd rather keep my hearing intact

[Audi]

Yeah i know. I just like the idea of db level being a sort of "real world" one. As oposed to one obtainable for less than a second or something.

[DeeCee]

its is real world.. better than other mics which aren't accurate for a start.
the problems you'll encounter with sound levels above 140 constant are such things as sustaining constant power, and front speakers that can keep up with the subs.

suffice to say, once you get above a certain threshold, then musicality of the system is next to nothing.. we've used that freak corolla box with the big port for normal music.. suprisingly good in fact, but the level at which it plays is well down from its spl operating level.

[ignition22]

erkel broke 150db with 2 x 10"s

im sure they would easily play 140db long term

[wildchild]

to get 140DB outa any sounds is hard unless you wanna spend tha coin i am running 2x Pioneer TSW306DVC subs 400W RMS each (800W RMS In Total), 2000W Max Music Power in total, they are being driven at 2OHMs by sony xmd1000p5

they go bloody loud and well but i don't even think i am reachin the 140DB range, i must get it tested, its all about the RMS wattage it has nothing to so with the size of the sub (inch) or anything like that my suggestion go out and get at least 2x 12" 1000W RMS subs and an amp that will drive them at there full power you will be lookin at a bit of money but hey u get wat u pay for also get a custom made box get it made to the exact specs of the subs for max performance and keep away from cheap brands because they will not perform to what u are expecting them to perform at trust me been there done that!!!! drop me a message if you got any questions

[DeeCee]

1) change your amp to something that runs 1 ohm loads and puts out more 1500wrms
2) change box for a specifically designed SPL box that is built solidly
3) find car's resonant frequency (actually known as car's transfer function)
4) blast 140dB no problems with those pioneers..

no questions to ask

[deaf_rattle]

recorded 139.4db today

that was with the meter sitting on the back seat and all speakers running.
car was turned off and running no capacitor at the moment.

a seal box that was deisgned for different subs.

So id say with a ported enclosure 140db would be achieved.


might get some vdo 12s i think......

[Mr.Phreak]

Just out of curiousity, what meter was used??

[Caveman]

that was with the meter sitting on the back seat

likewise, what meter was used?

[Alex B]

recorded 139.4db today

that was with the meter sitting on the back seat and all speakers running.
car was turned off and running no capacitor at the moment.

a seal box that was deisgned for different subs.

So id say with a ported enclosure 140db would be achieved.


might get some vdo 12s i think......

And caps will help in what way????

[deaf_rattle]

i will check the model tomorrow. measures up to 145dbs.
its well within calibration too.

well i have been reading up on rules and in some comps you are allowed to have the engine idling at 2000rpm, so with car on, my optima battery and a cap will get better power (more voltage) to the amps.

[Alex B]

cap will do SFA.

[Caveman]

If I were you just go termlab with the meter suck to the front window above the dash. That way your results will mean something...

[deaf_rattle]

yeah i was going to put the meter up the front, but i knew it would rattle off the dash and didnt want to break the work db meter.

i might get around to a sound off one day tho, would be interesting to see.

however not bad for $50 subs

[Blackrazor]

LOL... dude if it measures up to 145 dB it'll be an industrial noise dB meter, not a suitable car audio sensor The proper sensing equipment they use for car audio testing is linear to 185dB (i.e about 120 times the air pressure), it needs to be or else it screws the reading.

Or to put it another way : a certain well known brand was widely promoted on a DVD recently for hitting '152dB' and 'setting a new NZ record'... which was bollocks, because when it was tested officially it didnt even break 140dB

[method]

The dB meters for spl (termlab) use strain guages rather than a microphone, much better way of mesureing SPL, how do you mesure pressure with a microphone?

You need a strain guage to mesure pressure properly

But no dount they go loud, try sitting in a car that does 135.. its so $&#$% loud it hurts even if you cover your ears, not that id try or anything