What do u guys think

 

Silver Member
Username: Yamahabanshee1

Paulding, Ohio USA

Post Number: 221
Registered: Jul-04
here is my setup in a S10 Ext cab
Stock Alt and battery
2 12" Fusion PowerPlants in a Custom Built ported box ported to 38hz and 2.2cuft of air for each sub!
Audiobahn A8002T amplifier with SPL 4gauge amp kit.
Pioneer DEGP4700MP HU
Pioneer 6 1/2's TSG1640R in the doors
and Pioneer 4x6's TSG4640R in the Dash.
That is the setup! With that HU will I need an install kit?
What dB's can you guys gess i would hit! Iknow it is about impossible to tell with out hearing it but just take a gess! my subs are going to be facing upward! Will that sound good?
 

Bronze Member
Username: Brady427

Post Number: 92
Registered: Sep-05
upward? im guessing your box is under your seat then?? Yes you will need an install kit for that HU...(wiring harness..dash kit..ect)
 

Silver Member
Username: Yamahabanshee1

Paulding, Ohio USA

Post Number: 228
Registered: Jul-04
No my box is right in the back! where the jump seat is
 

Silver Member
Username: Cenus

Hicksville, Ohio Usa

Post Number: 559
Registered: Jan-05
not bad, the only thing i see that might cause a problem is your box is tuned kinda high, i would make it tuned lower to mabey 32-30hz, i would guess you will be hitting somwhere around 130-133db.
 

Silver Member
Username: Zacdavis

Beloit, Wi

Post Number: 307
Registered: Dec-03
it will be alot louder that :-)
 

Silver Member
Username: Cenus

Hicksville, Ohio Usa

Post Number: 560
Registered: Jan-05
well i just took a guess.
 

Silver Member
Username: Yamahabanshee1

Paulding, Ohio USA

Post Number: 229
Registered: Jul-04
well dustin i cant tune my box anylower
 

Silver Member
Username: Yamahabanshee1

Paulding, Ohio USA

Post Number: 230
Registered: Jul-04
it says a the port will not fit if i tune it any lower!
 

Silver Member
Username: Cenus

Hicksville, Ohio Usa

Post Number: 561
Registered: Jan-05
ohh well 38hz is ok, it will definitly make them sound louder.
 

Gold Member
Username: James1115

Wilton, Ct

Post Number: 4116
Registered: Dec-04
make sure you have your subsonic filter set no lower than 35 if you want them to last.
 

Silver Member
Username: Yamahabanshee1

Paulding, Ohio USA

Post Number: 233
Registered: Jul-04
so 35 or higher on my amp and ill be ok?
 

Silver Member
Username: Zacdavis

Beloit, Wi

Post Number: 309
Registered: Dec-03
James Longo, I would've thought a gold member would give better advice than that.

Smitty, run your subsonic filter at the minimum level, that is where I run mine and most customers. (15-20hz)

As for your score, I wouldn't be surprised to see it doing 140's.
 

Gold Member
Username: Invain

Michigan United States

Post Number: 3951
Registered: Aug-04
Zac, he's gonna port his box at 38 hz. A high pass filter at 15 - 20 hz isn't gonna help him. Anything between 30 - 35 is what I'd use. 15 - 20 is just too low for my taste, I'd be a little leary.
 

Gold Member
Username: Southernrebel

Monroe, Louisiana USA

Post Number: 1415
Registered: Mar-04
personnaly, i wouldnt set the SSF any higher than 25hz...

just my $.02
 

Silver Member
Username: Zacdavis

Beloit, Wi

Post Number: 310
Registered: Dec-03
Holy crap, another gold member (Joe) who doesnt understand what a subsonic filter is.

What a joke you guys, enlighten yourselves before you post.

Marshall, thank you. Finally, a post from a person who understands what a subsonic filter does.
 

Gold Member
Username: Southernrebel

Monroe, Louisiana USA

Post Number: 1417
Registered: Mar-04
just think about it guys...

at the subs Fs, the amp will hit a "wall of impedance"...that sub's Fs is 28.5hz.
 

Gold Member
Username: Invain

Michigan United States

Post Number: 3955
Registered: Aug-04
I know exactly what a subsonic filter does. Unfortunately, when I was younger I was running a ported box without filters, and had it unload on me. I learned a good lesson after that.

Filters are not like brick walls. Even with a 30 hz or so filter, which I would use, he won't even notice a huge difference from 30 - 25 hz compared to without a filter. The further you go, yes he's gonna be losing out on his low-end, but you have to make sacrifices somewhere.

He could be playing his sustem at pretty good steam, and hit a song that drops down to say 25 hz. He's now playing 13 hz below the port tune, that's a pretty big difference, and the box is not going to have very good control over the driver.
 

Gold Member
Username: Southernrebel

Monroe, Louisiana USA

Post Number: 1418
Registered: Mar-04
one more thing, i looked on Fusion's site and they list the subs impedence at Fs...its 35ohms.
 

Gold Member
Username: Invain

Michigan United States

Post Number: 3956
Registered: Aug-04
"at the subs Fs, the amp will hit a "wall of impedance"...that sub's Fs is 28.5hz."

You don't just hit a wall once you reach the driver's Fs, you hit a peak... If what you explain happened, there'd be a lot of people missing out of a large portion of the bass frequency spectrum.
 

Anonymous
 
that all depends on the slope of the filter as well.

5hz below tuning frequency is a good rule of thumb. for him 30hz would be fine. set it at 20hz and 21hz is not filtered, that's not good.
 

Gold Member
Username: Invain

Michigan United States

Post Number: 3959
Registered: Aug-04
Subs are extremely hard to control below their tuned enclosure frequency, and they suck a tremendous amount of power in the attempt. 13 hz is a long ways down, and a sub unloading isn't pretty. It loses all damping, and they usually end up blowing the cone right off.
 

Gold Member
Username: Kd7nfr

Montpelier, ID United States

Post Number: 1180
Registered: Apr-05
What do I think? I think I need another beer!!!

And sounds like an alright system. And there's no knowing how loud it'll be...
 

Silver Member
Username: Yamahabanshee1

Paulding, Ohio USA

Post Number: 234
Registered: Jul-04
Ok ill set the SSF to 20
and will that setup still sound good with the box tuned to 38hz?
 

Gold Member
Username: Invain

Michigan United States

Post Number: 3967
Registered: Aug-04
I guess you didn't read anything I posted.... if you you want to be ignorant, go for it and set your filter to 20 hz. It's not my system, I could care less.
 

Silver Member
Username: Yamahabanshee1

Paulding, Ohio USA

Post Number: 236
Registered: Jul-04
well man i dont mean to be deffinsive but i dunno who to believe here and more ppeps said 15-25
 

Gold Member
Username: Illuminator

USA

Post Number: 2080
Registered: Apr-05

quote:


Filters are not like brick walls. Even with a 30 hz or so filter, which I would use, he won't even notice a huge difference from 30 - 25 hz compared to without a filter. The further you go, yes he's gonna be losing out on his low-end, but you have to make sacrifices somewhere.

He could be playing his sustem at pretty good steam, and hit a song that drops down to say 25 hz. He's now playing 13 hz below the port tune, that's a pretty big difference, and the box is not going to have very good control over the driver.




Joe knows what he's talking about. I'll vouch for him.
« Previous Thread Next Thread »



Main Forums

Today's Posts

Forum Help

Follow Us