Btl 15...139.8 db?/ sub suggestions?

[hazardous0388 10+ year member]

yes lol blah blah i dont give a ****. I just got into competitions so Im still not sure how to set gains FOR competition, im sorry if im trying to learn something. but im going to be using an osillioscope, not sure how to spell it, to make sure my signals arent clipped.

I guess I've just never understood the definition to the *gain* level. I've always tuned for daily driving, not for competition so I've never had to turn it all the way up.

I'm going to ask this though. How do people get good scores without turning the *gain* up? is it just a non-clipped signal from a powerful amp? if so, how can i get the most power out of my amplifier without clipping?

Thanks

Dustin

 

[Pyro_By_Nature 5,000+ posts]

Best way to try and get power out of an amp - wire loooooooooow, and hope you have the electrical system to back it up.

Other than that, I'd really start playing with different boxes if I was you.

 

[delvryboy 5,000+ posts]

I would tune a little lower. When your not using gobs of power, a lower note usually helps. Especially when you metering sealed/dash from a trunk car.

 

[delvryboy 5,000+ posts]

Also, try what I told you with the box. I was going to show you the one tommyk built for a trunk car, but you left too soon.

 

[sully72482 10+ year member]

All of the experience that I've had, leads me to believe that for a strict SPL setup, the highest tuning you can tune to, according to your vehicle, will get you the loudest. If you can hit a 150 @ 35 hz on the meter, you are REALLY accomplishing something. By tuning to 55 for example, you make it far easier to see that 150.

 

[delvryboy 5,000+ posts]

All of the experience that I've had, leads me to believe that for a strict SPL setup, the highest tuning you can tune to, according to your vehicle, will get you the loudest. If you can hit a 150 @ 35 hz on the meter, you are REALLY accomplishing something. By tuning to 55 for example, you make it far easier to see that 150.

Not really. It definitely depends on the vehicle, but it also depends on the power. High tune doesn't always = louder.

 

[delvryboy 5,000+ posts]

As in your case, per your sig. If you can get that note down a little, I bet your score would go up. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[80INCHES 5,000+ posts]

All of the experience that I've had, leads me to believe that for a strict SPL setup, the highest tuning you can tune to, according to your vehicle, will get you the loudest. If you can hit a 150 @ 35 hz on the meter, you are REALLY accomplishing something. By tuning to 55 for example, you make it far easier to see that 150.

not really...that was my mistake....tuning a box so that it peaks around or near the incar freq doesnt mean tune exactly on it...if u tune a box lower than the incar freq...9 times out of ten (depending on how low u tuned to ) it will peak around or near the incar freq thus making the setup louder on the mic

80

 

[hazardous0388 10+ year member]

ya thats another problem i've been having. The btl is dual 0.7 ohms, so its either .5 with impedance rise, or 1.4. I wired it at 1.4. I dont think the amp would like .5 ohms but I guess I could always try it. Im thinking maybe a 3.5 cu ft box tuned to 35 hz is what ill try next

 

[sully72482 10+ year member]

not really...that was my mistake....tuning a box so that it peaks around or near the incar freq doesnt mean tune exactly on it...if u tune a box lower than the incar freq...9 times out of ten (depending on how low u tuned to ) it will peak around or near the incar freq thus making the setup louder on the mic
80

That is 100% correct. Being that he's already tuned to 46 hz, unless it's a vehicle specific peculiarity, going much below that will be hard to get loud for meter purposes. . .

 

[TheFiverMan 10+ year member]

If the gain is up and you roll the volume until clipping, it really doesn't matter. However, probably something you want to test before hand.

I would say lack of power for that sub.

2x...put 3k on it..

 

[bdawson72 5,000+ posts]

what kind of vehicle is this again?

 

[Orio5 10+ year member]

you went to the one in rockford right? if so witch car did you have? i was there?

 

[delvryboy 5,000+ posts]

That is 100% correct. Being that he's already tuned to 46 hz, unless it's a vehicle specific peculiarity, going much below that will be hard to get loud for meter purposes. . .

No, your wrong.

 

[delvryboy 5,000+ posts]

you went to the one in rockford right? if so witch car did you have? i was there?

He had a tan Grand am.