Prototype Big Boy SPL Motor

[Biggy 0]

so you think i could be fine with a optima yt up front + 2 maybe 3 hawker hx500 in the back with 4 amps?

[sundownz 197]

If it were me I'd do more batteries - but on burps you can get away with less than "optimal"

[mytyeerinpie 0]

It depends on the battery though right? Would 6 of a different battery hold better just wondering. I guess you may have recieved my e-mail by now Jacob.

[sundownz 197]

Did some power clamping today with my new True Power (kW) meter:

+1 sub control = 151.3 dB / 2750 watts

+5 sub control = 153.9 dB / 7360 watts

+7 sub control = 154.1 dB / 8900 watts

+9 sub control = 154.3 dB / 9180 watts

These are not peak - these are actual True Power figures. Have to hold it for ~5 seconds to get a reading on the meter too.

I was just messing around with my new toy and didn't take it up to my highest score - but you get the idea

Total power between the two amps, by the way.

[Aaron Clinton 2,372]

Only 9k watts? wtf

[Derrick824 4]

I'm curious what was the impedance rise and voltage drop?

[sundownz 197]

Rise to 0.87 per amp - don't know on voltage drop exactly for THIS test but I've seen it go to 14.9 on other testing. I don't have enough eyes to watch another meter

[audioxtremes 0]

When can we have these.........

[kkk4 3]

Did some power clamping today with my new True Power (kW) meter:

+1 sub control = 151.3 dB / 2750 watts

+5 sub control = 153.9 dB / 7360 watts

+7 sub control = 154.1 dB / 8900 watts

+9 sub control = 154.3 dB / 9180 watts

These are not peak - these are actual True Power figures. Have to hold it for ~5 seconds to get a reading on the meter too.

I was just messing around with my new toy and didn't take it up to my highest score - but you get the idea

Total power between the two amps, by the way.

Excuse me, I did not understand this post. (they are Italian and translate with google)

the results are made with two amplifiers 3000? or 4?

+1 ...+ 5 ... +7 ... +9 ... What are they?

[sundownz 197]

Two Amplifiers.

The +1, +5 and the sub level control on my head unit - I was turning the RCA voltage up on the head unit each time.

[kkk4 3]

a ok ...

good result!

you have tested this subwoofer in a car that far above 70hz?

Example: fiat panda ... etc etc

[kkk4 3]

two 3000D, to 9000 watts?

a 14v? or a 18v?

how many batteries?

[sundownz 197]

No - I have only tested at 50 Hz or lower.

[kkk4 3]

No - I have only tested at 50 Hz or lower.

tries to prove too, with cars above 70hz ...

so see if the sub performs well even with high frequencies that ... very interested to competitor of spl

[sundownz 197]

I don't know anyone here that plays at 70 Hz - but if I get those results in the future I will let you know.

[kkk4 3]

the world record in dbdrag, are made on fiat panda or marbella, and on cars above 70hz

in Italy at the moment we have more world records:

http://www.termpro.com/asp/worldrecords.as...son_Select=2009

everyone on fiat panda or marbella, 77hz or about

and other records are made to 90% of the cases on these frequencies

so it is very important to try them in this configuration

[sundownz 197]

I know that there are cars that do so but I do not have anyone around here that does 70 Hz

Once I have more in production I will be sure to find someone to test them as such.

[kkk4 3]

ok, we hope that the product is also valid for that frequency range ..

we hope will be in production soon

[culzero 0]

Did some power clamping today with my new True Power (kW) meter:

+1 sub control = 151.3 dB / 2750 watts

+5 sub control = 153.9 dB / 7360 watts

+7 sub control = 154.1 dB / 8900 watts

+9 sub control = 154.3 dB / 9180 watts

These are not peak - these are actual True Power figures. Have to hold it for ~5 seconds to get a reading on the meter too.

I was just messing around with my new toy and didn't take it up to my highest score - but you get the idea

Total power between the two amps, by the way.

This was done on a 16V system correct? 9k on a pair of 3000ds strapped is insane. Makes me wanna switch over to 16v setup but I already got (3) D3100s and a 300amp alt.

edit: what kinda meter do you have? I've never seen a handheld KW meter

Edited December 19, 2008 by culzero

[Derrick824 4]

Yes this was on 16v. Jacob has a bank of PowerMaster D1000s but no alternator to charge them yet so he's strictly off battery power for right now.

[sundownz 197]

I just got this meter:

http://www.extech.com/instruments/product....&prodid=109

[bobonit 5]

I just got this meter:

http://www.extech.com/instruments/product....&prodid=109

H'mmm, quite a bit cheaper (by about a hundred bucks) than the one I have been looking at:

http://us.fluke.com/usen/products/Fluke+330.htm (Fluke 337)

[BenHemp 1]

Jacob,

Our new van peaks at 58 hz and holds two 18's. It will put up some surprisingly loud #'s w/ low power. My team would love to test out some 18" prototypes w/ high power (4 AB 500.1's or 4 SAZ300d's) for you. Please get with me or Bud Ballinger if you're interested.

[sundownz 197]

We don't have any extras at the moment Ben - but they will be available for the Team in the coming months.

[Biggy 0]

We don't have any extras at the moment Ben - but they will be available for the Team in the coming months.

with 3 or 4" coil?