johnp94

iTrader: (12)

Hello everyone. Can i push two subs alpine type R, each in two seperate stealth boxes with this amp. 2 CHANNEL 4 OHM RMS 160 RMS WATTS X 2
2 OHM RMS 260 RMS WATTS X 2
4 OHM MONO BRIDGED RMS POWER 520 WATTS X 1
Thanks, John

TZ2884

iTrader: (14)

What impedance are the type r's?

Sand84

If the subs are Dual 4 Ohm yes.

Here is a Diagram for you
http://www.the12volt.com/caraudio/wo...s.asp?Q=2&I=42

2001-CamaroSS-LS1

the type r's are dual voice...you can run them at 4 or 2 ohms...theres these jumper wires that should have come with the sub....i have two of them running at 2 ohms and each sub has its own alpine 1000 watt amp...these amps push 1000 at 2 ohms and 600 at 4 ohms...and also best to run them bridged...if you run them bridged dont bring the subs down to 2 ohms..leave them at 4...when you put two 4 ohm subs together it becomes 2 ohms

WhiteBird00

iTrader: (4)

Yes, the Type R is a dual voice coil sub. But no, you can't run them at 4-ohms unless you leave one coil disconnected. Two 4-ohm voice coils can be wired in parallel to produce a 2-ohm load or in series to create an 8-ohm load.

The same is true when combining two subs. Two 4-ohm subs on one channel can be wired for 2-ohms total (parallel) or 8-ohms total (series). But two 4-ohm DVC subs would need to have the voice coils wired in parallel to produce 2-ohms and then be wired to the amp in series to produce a 4-ohm total load.

OSU Football Fan

iTrader: (23)

The alpine type r subwoofers are available with dual 4 ohm or dual 2 ohm
voice coils. So the wiring possabilities are virtually unlimited.

As for the original question, the subs will both take 500 watts RMS.
So 260 watts RMS would underpower them somewhat.
But as long as it's a high quality amp they would probably still
sound fairly decent.

WhiteBird00

iTrader: (4)

Yes that's true. You can get 2-ohms or 8-ohms out of the 4-ohm DVC subs and you can get 1-ohm or 4-ohms out of the 2-ohm DVC version. But you can't get both 2-ohm and 4-ohm configurations out of either one by itself as was stated earlier.

OSU Football Fan

iTrader: (23)

Sorry if I wasn't clear enough. I wasn't trying to contradict what
you said. I just wanted to let the OP know that regardless of what
direction he decides to go there's a wiring option since the subs
are available in dual 2 or 4 ohm voice coils.

BTW, I appreciate all of the posts you make on this forum.
Your knowledge has helped me out many times.

2001-CamaroSS-LS1

actually you can...my two type r's are 4 ohms and im running them at 2 ohms...there are two sets of terminals on the type r...included with the sub is are 2 small banana plug jumpers that you use to jump the terminals to make the sub become 2 ohms..basically what im saying is you can make the sub parallel right on the back of the sub....alpine gives you different configs on a sheet of paper when you buy the sub.

this picture proves my point...right from the owners manual of the sub..pay attention the red circles..

4 ohm sub running at 2 ohm

WhiteBird00

iTrader: (4)

Yes, that's correct and that's exactly what I said. Any DVC 4-ohm speaker can do that - it's basic electronics.

What I said was... "you can't get both 2-ohm and 4-ohm configurations" out of one 4-ohm dual voice coil sub unless you use only one of the two voice coils. Two 4-ohm coils in parallel is 2-ohms total (that's what is in your diagram). Two 4-ohm coils in series is 8-ohms total. There is no other way to wire two voice coils together. To get 4-ohms total you would have to connect only one of the two voice coils and give up half your power.

johnp94

iTrader: (12)

Thanks for all the help. John