Help with tuning!

[SicAudio 5,000+ posts]

i have no problem breaking 140 with my 3510 in my s-10 on 2k+ and it is still above 137 @ 30hz and these #'s are sealed on the dash with a tl. i see some 139.9 bass race for me in the future

well this setup flexed the windshield enough to break it on a 30 second 50hz tone at 51.3 volts at the amp. what do you think it is pushing realistically?

oops that was supposed to say 51.3 not 53 lolz typo FTW !!!

 

[thevic24 5,000+ posts]

well this setup flexed the windshield enough to break it on a 30 second 50hz tone at 53 volts at the amp. what do you think it is pushing realistically?

what ohm load?

 

[SicAudio 5,000+ posts]

1 ohm

and i started to smell vc so it came down very fast lolz

 

[thevic24 5,000+ posts]

well with box rise and all that good stuff i would have to guess...

i have my amp(fusion nvam 25001) set to 48v at the amp @ 1 ohm at 45 hz, 0db test tone and that = about 2200rms.

so my guess is at lest that much.

 

[cj407]

2631 watts...breaking windshield???? doubtful

 

[SicAudio 5,000+ posts]

well to be fair it had a good sized bullseye in it already lolz.

and uh the same setup with the square model sub on over 2000 rms for the pair broke my back window in my 87 Grand Am twice! but the box was also 5.8 cf after subs and port tuned at 32 as well. Mike Stiers designed that setup for me to the car to demo the product lolz.

 

[SicAudio 5,000+ posts]

2631 watts...breaking windshield???? doubtful

how the hell does a 1600 watt amp put out 2600 watts?

 

[cj407]

voltage^2 divided by ohm load = watts...so i highly doubt you had 51.3 volts of AC current coming out of the amp...with a 1 ohm load.

 

[SicAudio 5,000+ posts]

i have a very nice 400 $ meter made by fluke that I bought from snap on so im sure it is accurate, i use it alot for many dif things. i think impedance rise? has something to do with it.

 

[SicAudio 5,000+ posts]

the way i understood it as an example I was given, is this at 1 ohm about 41 volts IIRC is 1200 watts? is that right or even close?

 

[cj407]

1681 if its 100% efficient.

 

[SicAudio 5,000+ posts]

it is closer to 80% efficient it has very good electrical and the only time the voltage drops below high 13's is on long burps with a tone.

 

[SicAudio 5,000+ posts]

so amperage x voltage divided by efficiency right?

 

[cj407]

you got an amp that is 80% efficient at 1 ohm? doubtful

 

[cj407]

and you may wanna find out what your box rise is before anything else....chances are it could possibly be near 2 ohm.