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two 15 in strokers, two RF 500s?


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cubic 
Member - Posts: 7
Member spacespace
Joined: December 20, 2006
Location: United States
Posted: December 21, 2006 at 10:57 AM / IP Logged  

Ahhh.... Now that makes sense. Thanks for your paitence.  So Guess the question is, is 250 watts to each coil enough to move these speakers?  And what amps would you suggest I buy to power these speakers? I think mabey I need to puchase proper size amps To get the total benifiet.

Suggestions would be appriciated.. Thanks for helping me out

ss-installer 
Silver - Posts: 444
Silver spacespace
Joined: February 27, 2005
Location: United States
Posted: December 21, 2006 at 11:50 AM / IP Logged  
get 2 Memphis MCD1000. one per sub at 1ohm. should be plenty. parallel the subs for 1ohm.
haemphyst 
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Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: December 21, 2006 at 11:52 AM / IP Logged  
Here... Probably expensive, as most of the Zapco stuff is, but it'll make those things jump out of their baskets!
A pair of Eclipse DA7232's (stereo, and not a bridgeable amplifier) with one channel to each woofer coil would knock your socks off, too...
It all reminds me of something that Moličre once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
stevdart 
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Joined: January 24, 2004
Location: Pennsylvania, United States
Posted: December 21, 2006 at 12:00 PM / IP Logged  

haemphyst has provided great advice, as always.  Now for the above question...1 watt will move those subs.  1 watt.  If your goal is to compete with these famous one-note wonders, upgrade your amps.  Use two mono amps capable of 1 ohm, wire the coils in parallel to make a 1 ohm impedance for each sub, leave the subs separated, and feed each sub up to its rated RMS.  One mono amp per sub.  Look at mono amps whose rating is 1000 to 1200 watts driven into 1 ohm.  It doesn't have to get too costly doing it this way, just in case you're not made out of money.

IC above, as ss_installer likewise said.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
cubic 
Member - Posts: 7
Member spacespace
Joined: December 20, 2006
Location: United States
Posted: December 21, 2006 at 1:47 PM / IP Logged  

Thanks guys, Im not wanting to compete but the subs are going into a winning show and I want the system to be as impressive as the van. So Im going to look into the mono amps, and for now Im going to wire one channel to each coil. Ive included the box size from cerwin vega if anyone would every need them.

STROKER-15D2 Specifications

POWER HANDLING: 1200 Watts RMS (600 Watts per coil)

FREQUENCY RESPONSE: 36 ā€" 200 Hz

SENSITIVITY: 95 dB

IMPEDANCE: 2 Ohms per coil

MSRP: $800

CIRCA: 2003

Parameters

Fs: 36 Hz

Qts: 0.217

Qms: 9.120

Qes: 0.223

Vas: 3.11 cu. ft.

Xmax: 0.9" (+/- .45ā€¯)

Re: 1.7 ohms per coil

Sd: 130.82 sq. in.

Driver displacement 0.27 cu. ft.

For 40 Hz Tuning; SPL

The optimum enclosure is 5.0 cubic feet (total internal volume) with two 6ā€¯ diameter round ports that are 16.17ā€¯ long each.

For 35 Hz. tuning; Sound Quality High Power

The optimum enclosure is 5.0 cubic feet (total internal volume) with a 44 square inch port with a port length of 16ā€¯.

For 35 Hz. tuning; Sound Quality

The optimum enclosure is 4.5 cubic feet (total internal volume) with one 6ā€¯ diameter round port that is 9.25ā€¯ long.

SEALED OR BANDPASS ENCLOSURES ARE NOT RECOMMENDED.

www.cerwin-vega.com

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