L5 kickers

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openseason

Member - Posts: 9

Joined: May 18, 2004

Location: United Kingdom

Posted: May 18, 2004 at 4:18 PM / IP Logged

i have a pioneer deh-p8500 mp head unit running to a mtx thunder 4250d amp powering 2 solo barik l5 10" subs. does anyone have any suggestions on the best way to wire the subs ?[subs in sealed box}

openseason

Member - Posts: 9

Joined: May 18, 2004

Location: United Kingdom

Posted: May 18, 2004 at 4:36 PM / IP Logged

oh yah should i enable non fading output on head unit

openseason

customsuburb

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Joined: January 17, 2004

Location: United States

Posted: May 18, 2004 at 4:56 PM / IP Logged

What is the impedance of your subs and are they dual voice coil? You should use the non-fading outputs if you want to connect them to a sub amp.

openseason

Member - Posts: 9

Joined: May 18, 2004

Location: United Kingdom

Posted: May 18, 2004 at 5:34 PM / IP Logged

here are specs of subs

copolymer cone
Santoprene rubber surround
dual 4-ohm voice coils for wiring flexibility
frequency response 24-100 Hz
power range 50-450 watts RMS (225 watts per coil)
peak power handling 900 watts
sensitivity 86 dB SPL
top-mount depth 5-5/8"
sealed box volume 0.66-1.0 cubic feet
ported box volume 1.25-2.25 cubic feet
Recommended Box Type: none
1-year warranty

Priced per speaker

openseason

customsuburb

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Location: United States

Posted: May 18, 2004 at 6:08 PM / IP Logged

OK this amp is not a good match for these subs. You can either wire these subs to present a 1 or 4 ohm load on your amp and your amp is not 1 ohm stable so you will be underpowering them. I would consider buying the 801D instead. You will have to wire each woofers coils in parallel and then wire them both to the amp in series:

L5 kickers -- posted image.

openseason

Member - Posts: 9

Joined: May 18, 2004

Location: United Kingdom

Posted: May 18, 2004 at 6:29 PM / IP Logged

are those instructions for my amp or the one you recomend..and also do i wire them to the left or right channel. thanks alot for your help

openseason

customsuburb

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Joined: January 17, 2004

Location: United States

Posted: May 18, 2004 at 6:43 PM / IP Logged

Those instructions were for the amp you own right now (4250d). I made a mistake in the above post suggesting the 801D because its not 1 ohm stable either. I would either use a higher power 2 channel amp (like the Rockford Fosgate Punch P8002) , and wire the subs for 4 ohms, and bridge the amp or buy a nice 1 ohm stable mono amp, like the JBL BP 600.1 or the Hifonics Nemesis NX750D maybe. I would go with the second option.

openseason

Member - Posts: 9

Joined: May 18, 2004

Location: United Kingdom

Posted: May 18, 2004 at 8:12 PM / IP Logged

sorry there 2 ohm speakers

openseason

Member - Posts: 9

Joined: May 18, 2004

Location: United Kingdom

Posted: May 18, 2004 at 9:30 PM / IP Logged

can someone tell me how to wire the duel 2 ohm voice coils for best performance with my amp mtx thunder 4250d amp ? thanx for any help....and do i use both right and left hook ups on the amp or just one set

openseason

stevdart

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Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: May 18, 2004 at 10:37 PM / IP Logged

They changed ohms pretty fast there. Thank you customsuburb for the work you did...

Wire each sub in series for 4 ohms. Parallel the two subs to make one 2 ohm load. Connect neg. to one neg. post on the amp; connect pos onto one pos on the amp. The amp is single channel, which means you have to use both sides.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

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