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sub and amp hook up...

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Old 11-23-2007 | 11:53 AM
  #1  
booger78z28's Avatar
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From: Kansas city, Mo
Default sub and amp hook up...

what does bridging mean?...the guy i bought these from said that he had to bridge the speakers to the amp but on the amp info, it said its not bridgable?
dont i just hook one speaker to one side of the amp , and the other speaker tothe other side?

heres the compontent info>>>>

(2)..Rockford Fosgate P112S8 12" Punch P1 Subwoofer>>>>
8 Ohm Single Voice Coil
150 Watts RMS
300 Watts Peak
Sensitivity: 86 db
Parabolic Polypropylene Cone
Stamped Steel Frame
38 oz. Magnet
Vas: 107
Fs: 26
Qts: .624
Xmax: 7.7
5.6" Woofer Depth
11.13" Woofer Cutout
Sealed Box: 0.85 cu ft
Ported Box: 1.25 cu ft - F3(Hz) - 32


MTX 4250D AMP>>>>>
Amplifier Type Mono Channel
Bridgable Not Bridgable
RMS Power at 4 Ohms 125 W x 1
RMS Power at 2 Ohms 250 W x 1
Performance
Frequency Response 20 Hz - 200 Hz
Signal to Noise Ratio 100 dB
THD at Rated RMS Power 1 %
Crossover / Equalizer
Bass Boost With Bass Boost
Bass Boost Frequency 40 Hz
Low - Pass Frequency 40 Hz - 200 Hz
Other Features
Input Voltage 12.5 volt
MOSFET Circuitry Yes
3 Way Ready No
Dimensions
Width 9.9 in.
Depth 9.75 in.
Height 2.1 in.
Miscellaneous
Product ID 20290173
More Information
This subwoofer amplifier features MTX Audios Adaptive Class D Technology for large power numbers from a very small footprint. Thunder4250D features a low pass crossover, variable from 40Hz to 200Hz, this amp also contains both the Thunder EQ bass boost and an EBC2 port. Our "Smart Engage" auto-turn-on circuit makes installation easy.
Old 11-23-2007 | 02:01 PM
  #2  
larsy87's Avatar
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If you wire the speakers in parallel you can get them to a 4 ohm load to the amp. That's probably what he meant by bridging. If you run them like that each sub will get ~65 watts. It'll make noise but you can get far better amps, and subs for that matter. How much did you pay for all of this?

Your amp is mono which means one channel, unless it has two outputs to make wiring easier.

HTH
Old 11-23-2007 | 03:23 PM
  #3  
booger78z28's Avatar
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i got the custom fit box, 2 punch p1's 12's and the amp shipped for $250

i thought it was a good deal, cant change amps right now, going to have to make this one work.

the amp does have 2 speaker plug-ins
Old 11-23-2007 | 08:29 PM
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it says its not bridgable but i wouldnt see a problem running it at 2ohms so you can get some more power....i have been running a 2ohm stable rockford amp at 1ohm for the better part of 2 years without problems (i do have a fan blowing on it though).....
Old 11-23-2007 | 08:30 PM
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one thing you can do is run it at 2ohms and feel the amp for the first couple min. if it doesnt get real hot then your probably fine.....the amp will probably start clipping then shut off if it gets too hot....
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