Just got my two 10" Rsdc's metered!!!

Juice0723 · Post by **Juice0723** » Sat Apr 25, 2009 4:00 pm

Hey guys,

I been waiting forever to get my system metered. And finally got it done today because I have to drive 1 1/2 hours to do it.

With my two 10" Rsdc's powered by my Jbl gto1201.1ii amp. I hit 146.3db's. I am very happy with the number. So what do you guys think?

dBincognito · Post by **dBincognito** » Sat Apr 25, 2009 4:55 pm

Finding it hard to believe myself

dBincognito · Post by **dBincognito** » Sat Apr 25, 2009 4:57 pm

Do they really go that loud....I heard Christian's 2 10's on his RSD 1200.1....and I would not guess that it was hitting that high on the numbers.....it did pound, but 146.3dB's sounds a little excessive

Juice0723 · Post by **Juice0723** » Sat Apr 25, 2009 4:58 pm

I have my enclosure tuned to 40hz. And played a tone when getting metered.

dBincognito · Post by **dBincognito** » Sat Apr 25, 2009 4:59 pm

TONES DO MAKE A DIFFERENCE....I thought that was straight music numbers

Juice0723 · Post by **Juice0723** » Sat Apr 25, 2009 5:00 pm

I was hitting 145's on music.

dBincognito · Post by **dBincognito** » Sat Apr 25, 2009 5:01 pm

How do you like them so far ?

Juice0723 · Post by **Juice0723** » Sat Apr 25, 2009 5:03 pm

dBincognito wrote:How do you like them so far ?

I like them very much. I'm the first person to make vids of these in action. Got them when they first came out. Usually people are surprised when I pop the trunk.

dBincognito · Post by **dBincognito** » Sat Apr 25, 2009 5:05 pm

Have you tried the 12 ?

Juice0723 · Post by **Juice0723** » Sat Apr 25, 2009 5:05 pm

Not yet was thinking of it though.

dBincognito · Post by **dBincognito** » Sat Apr 25, 2009 5:08 pm

I might get 1....I could use a 12 on my bench

thedeal7235 · Post by **thedeal7235** » Sat Apr 25, 2009 5:08 pm

i wouldnt doubt with the right tone it easily hits that on mine, espicially since mine are ported, i think juice's are sealed, or are they ported?

Juice0723 · Post by **Juice0723** » Sat Apr 25, 2009 5:10 pm

thedeal7235 wrote:i wouldnt doubt with the right tone it easily hits that on mine, espicially since mine are ported, i think juice's are sealed, or are they ported?

They are ported haven't tried them sealed yet. I have multiple enclosures for them. The one I put them in when getting metered was the 40hz enclosure. I usually have my sq enclosure in though.

dBincognito · Post by **dBincognito** » Sat Apr 25, 2009 5:10 pm

What is the XMAX on these subs ?

Juice0723 · Post by **Juice0723** » Sat Apr 25, 2009 5:12 pm

dBincognito wrote:What is the XMAX on these subs ?

14.8mm

dBincognito · Post by **dBincognito** » Sat Apr 25, 2009 5:14 pm

Juice0723 wrote:
dBincognito wrote:What is the XMAX on these subs ?
14.8mm

That's it ?

Wow.....I wonder how loud I'm going to get

Juice0723 · Post by **Juice0723** » Sat Apr 25, 2009 5:17 pm

Well I'm thinking on getting a new amp, so each sub is receiving 750-800watts rms. They handle the power that I'm giving them with ease.

dBincognito · Post by **dBincognito** » Sat Apr 25, 2009 5:18 pm

Juice0723 wrote:Well I'm thinking on getting a new amp, so each sub is receiving 750-800watts rms. They handle the power that I'm giving them with ease.

Go for it....MORE POWER

Post by **Bfowler** » Sat Apr 25, 2009 6:10 pm

that number is the one way movement. i am moving one right now with a ruler next to it....definitely more then 14.4mm

dBincognito · Post by **dBincognito** » Sat Apr 25, 2009 6:12 pm

Bfowler wrote:that number is the one way movement. i am moving one right now with a ruler next to it....definitely more then 14.4mm

XMAX is one way linear excursion.....and pretty much the most important number in hitting dB's that is why I asked

thedeal7235 · Post by **thedeal7235** » Sat Apr 25, 2009 8:03 pm

actually i thought the xcursion was measured at 15.6mm????

Juice0723 · Post by **Juice0723** » Sat Apr 25, 2009 9:08 pm

thedeal7235 wrote:actually i thought the xcursion was measured at 15.6mm????

It says in the manual 14.8mm. I think its more then that also. When you look at one of my excursion vids.

nico boom · Post by **nico boom** » Sun Apr 26, 2009 12:24 am

dBincognito wrote:
Bfowler wrote:that number is the one way movement. i am moving one right now with a ruler next to it....definitely more then 14.4mm
XMAX is one way linear excursion.....and pretty much the most important number in hitting dB's that is why I asked

I do not agree fully here Randy; when you want to get a high Db score, most important thing is playing the exact right frequency at the right spot.
Back in the days when I competed, there were no rules, and I won a lot of competitions time after time because I spend a lot of hours finding the right spot to put the mic. and which frequency to use.
Using a simple Db meter, it made a HUGE difference in output measured; people still tend to overlook that IMO.
When rules apply, make sure you build your install centering on those rules, use putty, and tape to attach a Db meter to the spot where the jury will place the mic., and go from there, drawing lines using ropes to get the time alignment right when using multiple woofers.
My 2 cents, from a time when woofers only had a X-max of 8 mm.

[I'm not going into the use of different materials and shapes in the driver's compartment for optimizing SPL., I might find myself "out of fashion" here]....

[one more thing; music is not suitable for SPL competitions; the "right frequency" may not be appearent in that material, plus it will ruin your system when bassnotes hit that are under your tuned frequency, destroying your woofers regardless of the Xmax....]

dBincognito · Post by **dBincognito** » Sun Apr 26, 2009 4:40 am

nico boom wrote:
dBincognito wrote:
Bfowler wrote:that number is the one way movement. i am moving one right now with a ruler next to it....definitely more then 14.4mm
XMAX is one way linear excursion.....and pretty much the most important number in hitting dB's that is why I asked
I do not agree fully here Randy; when you want to get a high Db score, most important thing is playing the exact right frequency at the right spot.
Back in the days when I competed, there were no rules, and I won a lot of competitions time after time because I spend a lot of hours finding the right spot to put the mic. and which frequency to use.
Using a simple Db meter, it made a HUGE difference in output measured; people still tend to overlook that IMO.
When rules apply, make sure you build your install centering on those rules, use putty, and tape to attach a Db meter to the spot where the jury will place the mic., and go from there, drawing lines using ropes to get the time alignment right when using multiple woofers.
My 2 cents, from a time when woofers only had a X-max of 8 mm.
[I'm not going into the use of different materials and shapes in the driver's compartment for optimizing SPL., I might find myself "out of fashion" here]....
[one more thing; music is not suitable for SPL competitions; the "right frequency" may not be appearent in that material, plus it will ruin your system when bassnotes hit that are under your tuned frequency, destroying your woofers regardless of the Xmax....]

I live 35 min. from the IASCA's....I will just say I disagree

dedlyjedly · Post by **dedlyjedly** » Sun Apr 26, 2009 7:31 pm

near the IASCA's? is that some eastern mountain range I haven't heard of or something?