ok i just bought some dual 12" quad ported bandpass subwoofers the features are listed as
4 port design for deeper bass
10 pod illuminated interior chamber
dual 12" low-q optimized drivers in parallel
4 ohms nominal
carpeted enclosure
plexi subwoofers viewing window
computer tuned acoustic chambers
high-mass cone subwoofers
2-chamber design
would like to spend around or less than 200 its just starting out system ill upgrade later
Replies (7)
swez on 04/30/2005 20:12:41
Hard to say what you have with the info noted above. BP boxes are very efficient, but if they are not tuned properly to the subs, could wind up sounding less than desireable.
Since you have a net 4 ohms from the box, a good 2 channel amp will deliver adequate power if you bridge the amp to MONO. Do you know the RMS power ratings of the subs? That will help a lot in determining what size amp to use.
Finally, be sure you get an amp that has a Sub Sonic Filter network on it. Many better amps have them now, or you can buy a crossover network that has a SSF network. That will save your subs from destruction at high SPL.
Swez
Victor on 05/1/2005 02:23:39
Hey Dave,
I understand the use of SS filter, but ... the acoustic properties of a Bandpass does not make it a die hard necessity to use a SS filter..
Since the rear chambered is sealed and the sub is in a acoustic suspension system there is no need of a SS filter as far as i see it.
Yes of course it can be used if you want to be double sure to safeguard your subs.. but as i said above it is not a die hard necessity.
Also please say more on the RMS power rating as swez asked. With the incomplete info you have given it is really hard to help you choose a particular amp.
Victor...
swez on 05/1/2005 10:59:01
Victor,
If "we" designed the BP to match well with a specific set of subs, then "we" would know the tuned properties of the box. That would tell whether a SSF was needed or not.
However, with so many unknowns in this scenario... would not take a risk of frying subs on this matter.
Swez
ajl161988 on 05/1/2005 20:34:46
http://www.bestbuy.com/site/olspage.jsp?skuId=7044085&type=product&cmp=++&id=1099396976115
thats the speakers i got but they look a little diffrent
swez on 05/1/2005 23:21:15
Looks like a 500-600 Wrms amp will do the job here. Personally, I would look for a very efficient Class D amp that is stable at 1 ohm and re-wire the subs internally for a 1 ohm load.
The other option is to use a 2 channel amp that you can bridge to MONO and get 500-600 Wrms @ 4 ohms.
Do you have a budget # for the amp?
Swez
ajl161988 on 05/2/2005 04:36:16
im willing to spend around 200 on a amp but if u know or find one that would be excelent for my speakers just post a link and show me and i could change my mind
swez on 05/3/2005 21:21:23
These will work in that price range:
1. http://www.etronics.com/product.asp?icatid=308&stk_code=kenkac7252&svbname=30 (500 Wrms bridged @ 4 ohms... good fit)
2. http://www.etronics.com/product.asp?icatid=303&stk_code=auda8002t&svbname=30 (a bit strong, 800 Wrms bridged @ 4 0hms)
3. http://www.etronics.com/product.asp?stk_code=kenkac9152d&showspecs=1&catid=306&store= (500 Wrms @ 4 ohms)
4. http://www.etronics.com/product.asp?icatid=303&stk_code=auda4002t&svbname=30 (400 Wrms bridged @ 4 ohms)
5. http://www.cardomain.com/item/MTX502?ref=prgr (500 Wrms bridged @ 4 ohms)
6. http://www.pricegrabber.com/search_attrib.php?page_id=342&sortby=popular-&vendors%5B%5D=0&form_keyword=Car+Amps&lo_p=130&hi_p=200&x=33&y=9
(general list off pricegrabber in your price range)
Happy looking!
Swez
4 port design for deeper bass
10 pod illuminated interior chamber
dual 12" low-q optimized drivers in parallel
4 ohms nominal
carpeted enclosure
plexi subwoofers viewing window
computer tuned acoustic chambers
high-mass cone subwoofers
2-chamber design
would like to spend around or less than 200 its just starting out system ill upgrade later
Replies (7)
swez on 04/30/2005 20:12:41
Hard to say what you have with the info noted above. BP boxes are very efficient, but if they are not tuned properly to the subs, could wind up sounding less than desireable.
Since you have a net 4 ohms from the box, a good 2 channel amp will deliver adequate power if you bridge the amp to MONO. Do you know the RMS power ratings of the subs? That will help a lot in determining what size amp to use.
Finally, be sure you get an amp that has a Sub Sonic Filter network on it. Many better amps have them now, or you can buy a crossover network that has a SSF network. That will save your subs from destruction at high SPL.
Swez
Victor on 05/1/2005 02:23:39
Hey Dave,
I understand the use of SS filter, but ... the acoustic properties of a Bandpass does not make it a die hard necessity to use a SS filter..
Since the rear chambered is sealed and the sub is in a acoustic suspension system there is no need of a SS filter as far as i see it.
Yes of course it can be used if you want to be double sure to safeguard your subs.. but as i said above it is not a die hard necessity.
Also please say more on the RMS power rating as swez asked. With the incomplete info you have given it is really hard to help you choose a particular amp.
Victor...
swez on 05/1/2005 10:59:01
Victor,
If "we" designed the BP to match well with a specific set of subs, then "we" would know the tuned properties of the box. That would tell whether a SSF was needed or not.
However, with so many unknowns in this scenario... would not take a risk of frying subs on this matter.
Swez
ajl161988 on 05/1/2005 20:34:46
http://www.bestbuy.com/site/olspage.jsp?skuId=7044085&type=product&cmp=++&id=1099396976115
thats the speakers i got but they look a little diffrent
swez on 05/1/2005 23:21:15
Looks like a 500-600 Wrms amp will do the job here. Personally, I would look for a very efficient Class D amp that is stable at 1 ohm and re-wire the subs internally for a 1 ohm load.
The other option is to use a 2 channel amp that you can bridge to MONO and get 500-600 Wrms @ 4 ohms.
Do you have a budget # for the amp?
Swez
ajl161988 on 05/2/2005 04:36:16
im willing to spend around 200 on a amp but if u know or find one that would be excelent for my speakers just post a link and show me and i could change my mind
swez on 05/3/2005 21:21:23
These will work in that price range:
1. http://www.etronics.com/product.asp?icatid=308&stk_code=kenkac7252&svbname=30 (500 Wrms bridged @ 4 ohms... good fit)
2. http://www.etronics.com/product.asp?icatid=303&stk_code=auda8002t&svbname=30 (a bit strong, 800 Wrms bridged @ 4 0hms)
3. http://www.etronics.com/product.asp?stk_code=kenkac9152d&showspecs=1&catid=306&store= (500 Wrms @ 4 ohms)
4. http://www.etronics.com/product.asp?icatid=303&stk_code=auda4002t&svbname=30 (400 Wrms bridged @ 4 ohms)
5. http://www.cardomain.com/item/MTX502?ref=prgr (500 Wrms bridged @ 4 ohms)
6. http://www.pricegrabber.com/search_attrib.php?page_id=342&sortby=popular-&vendors%5B%5D=0&form_keyword=Car+Amps&lo_p=130&hi_p=200&x=33&y=9
(general list off pricegrabber in your price range)
Happy looking!
Swez
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