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NewB Subs/Amps Qs

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=41873
Printed Date: May 15, 2024 at 6:57 AM


Topic: NewB Subs/Amps Qs

Posted By: LeanNCut
Subject: NewB Subs/Amps Qs
Date Posted: October 29, 2004 at 9:51 AM

Should I get 2 Rocford Fosgate T112D2 or 2 T112D4 subs for 2 for a dual setup? 
To drive these 2 subs, will it require a 2 channel amp T15002 or 1 single monoblock amp T20001bd? (or 2 monoblock amps)

Sorry about the stupid questions but I don't have a clear idea
of how subs are wired.  Will the amps be sufficient to drive these subs?  I don't have a lot of space so might have to get the T10021bd and T8002 models instead.

Thanks in advance.




Replies:

Posted By: 94legend
Date Posted: October 29, 2004 at 10:34 AM

Hey mr Bling Bling,  Good Choice of quality sound. I would have to suggest that you go with the T112d2 for the 2 ohm load reason that it can pull from the amp wich you would go with the t15002. This is a sufficient amount of power you have having. No need for 2 mono. That one 2 chan amp is enough to with hold those subs.





Posted By: LeanNCut
Date Posted: October 29, 2004 at 10:53 AM

Thanks 94Legend.

So if I understand you correctly, 1 monoblock amp can be wired to power 2 subs?  Also, the difference between the 2-Ohm and 4-Ohm sub that a lower Ohm rating will mean more power which translate into a louder sound.  Is that correct?





Posted By: LeanNCut
Date Posted: October 29, 2004 at 10:57 AM

Sorry, I'm @ work and have to read and post fast so I misread the reply.

You said a single 2-chanel amp can be wired to drive 2 subs.  Can a single monoblock amp drive 2 subs as well?  I'm trying to get the biggest bang (or boom) for the buck.  Literrally.

My question about the 2-Ohm 4-Ohm model sub still stands.  What's the main difference?





Posted By: boxmaker85
Date Posted: October 29, 2004 at 11:09 AM

Yes a mono can drive two subs.  For this application you would use the T112D4 and wire two together to give a 2 ohm signal to your mono block amp.  But like 94Legend said this situation's optimal setup would be the two T112D2 with the 2channel amp (T15002).

How do those power subs sound?  Any good?  I haven't been very impressed w/ Rockford lately and thier new stuff has not impressed me.





Posted By: LeanNCut
Date Posted: October 29, 2004 at 11:36 AM

Thanks BoxMaker.  I don't know yet, I'm about to buy those this weekend and will post some feedback when everything is installed.

If I was to get the smaller T8002, will this setup still work?





Posted By: boxmaker85
Date Posted: October 29, 2004 at 4:18 PM

That one could work.  But you will be doing a major underpowering to those subs.  They could probably handle a good 700 watts.  The T15002 will do good.  Bridge that amp to one channel, then get the two 4 ohm subs and run them in series.  The amp will put out 1000 watts at this.  If you feel comfortable running 750 to each sub (probably wouldn't hurt but....) then you could get the 2 ohm subs and run them in series, the amp will then be putting out 1500 watts to both the subs.

The T20001bd would be fine also.  It's the same as the T15002 but you don't have to bridge the amp. 






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