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I have a Hifonics BXI1208d mono subwoofer amp but i have 2 sets of wire terminals and they go negative negative postive postive. Which do I use?

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Depends if its bridgeagle or bridge internally. bridgeing provides the most power to a mono system. 2 positives and 2 negative you have a 2 channel amp. Heres a link to check out, you should be able to figure out your system and hook it up with this. Hope it helps. http://www.wikihow.com/Bridge-an-Amplifier

Posted on Jun 20, 2009

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Hi, if you wire all voice coils in parallel, you will get down to 1.5 ohms. That is the lowest you can go with these 2 subs. Just hook the amps' positive to all 4 positive speaker terminals and the amp negative to all 4 speaker negative terminals. Please let me know if you have more questions, and thanks for using FixYa.

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With a kenwood amp 1000watt 170rms x 2 ,how should i really wire these up!


You haven't supplied any model #s so its impossible to say - but Kenwoods don't normally like 2 ohm mono loads.

You're going to have to either use one channel @ 2 ohm... or use each subwoofer per channel on the amp.

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Why does the hifonics bxi1608d 1600 watt super D-class mono have 2 postive terminals and two negative terminals? would that cause my speakers to blow?


That is still a single channel cass D amp. Each (-) and each (+) terminal are connected so its actually like only having one. This is so you can hook speakers up in a series circuit to lower impedance, because this amp is 1ohm stable. What causes your speakers to blow is too much power. What kind of speakers are you running? This hifonics amp is very powerful, they are getting big in the competition industries beacuse they put our true power for less money and they are tough. That 1600 amp you have may be putting out more like 1800 watts at 14.4 volts which is 900 per sub at 1ohm so be careful this amp has tons of power and its true rated its not like a sony or rocksford or kenwood that says 1800 max and then in small writing it says 500 rms. This amp puts out true. I have 3 hifonics amps and love them.

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http://www.bcae1.com/spkrmlti.htm

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your speakers are 1 ohm per voice coil, dual oice coil. your amp is no lower than 2 ohms stable mono.

the proper way to wire this so that you do not burn out the amp is to run the 2 vioce coils in series. run the positive lead from the amp into the positive lead of one of the voice coils, then run a jumper wire from the same voice coil's negative lead to the same speaker's 2nd voice coil's positive input. then run from the 2nd voice coil's negative back to the amplifier's negative speaker lead.


you will be running for each speaker/amplifier set: amp + to terminal set 1 +, terminal set 1 - to terminal set 2 +, then terminal set 2 - to amp -

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You can splice the wires together/double them up and make your connections that way.

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The positives are connected together and the negatives are connected together. The two pairs of terminals are for convenience. You'd connect one speaker to a pair of positive/negative terminals and you'd connect the other speaker to the remaining pair of positive/negative terminals.

You need to confirm that you have a good signal feeding the amp. If you have another amp in the vehicle, swap the RCA cables between the amps to see if it makes a difference.

You also need to confirm that the speaker are working properly and that there are no broken connections in the wires. If you disconnect the speaker wires from the amp and touch the wires across a D-cell battery (for a fraction of a second), the speaker should pop. if it doesn't, check the wiring to determine why.

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The subs can be wired "parralel" or in a "series". it depends on the ohm rating of the speakers and the amp. Most amps can only go down to 2ohms (mono) so it depending on the ohm ratings of the speakers when wired in a series vs parralel that will decide how to wire them. you can always take the safe route and just wire the positives of each to positive on the amp and the negatives to the negatives on the speaker terminals. Do you have the speakers model numbers?

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Verge VGA300M Speaker terminals


Mono amps often have two sets of speaker outputs; this is just to simplify multi-speaker connections. The two positive and negative terminals are connected together internally, so they're effectively the same as one terminal. There's no difference between connecting both subs to the same positive and negative terminals, or using different terminals for each sub; electrically they'll all be connected together either way.

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