Is This Possible ?
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Bronze Member Username: Foong_onePost Number: 24 Registered: Jan-07 | Can this 4-channel Jensen JPA460 amp be used to power two front speakers and bridging the 2 rear channels to power a 300-Watt constant RMS sub ?? http://www.circuitcity.com/ssm/Specifications-of-Jensen-4-Channel-Amplifier-JPA4 60/sem/rpsm/oid/119446/rpem/ccd/productDetailSpecification.do#tabs |
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Bronze Member Username: Moey_gSydneyAustralia Post Number: 44 Registered: Oct-06 | It can be done, but dont expect much from it. |
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Silver Member Username: Ars88P.I.M.P , Pakistani/In... Post Number: 402 Registered: Nov-06 | yeah....jensen is jus like pyle/lanzar/dual and other crap....for that price i am sure you can find a much better amp on ebay... |
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Bronze Member Username: Foong_onePost Number: 26 Registered: Jan-07 | Yeah, I know. But, my real point is: can a 4-channel amp be used to power two front speakers, and bridged to power a sub at the same time? The Circuit City "geniuses" told me that 4-channel amps were not meant to power subs...they're just meant to power 4 regular speakers, and that if they're bridged to power a sub/speaker combo, then they (the amps) won't last long. Is this true? I really don't have the money right now to buy an add'l. amp. |
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Silver Member Username: LoudonPost Number: 752 Registered: Jun-04 | be easy ... i work at circuit city lol |
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Silver Member Username: ShortysetniesRock Vegas, NC US Post Number: 966 Registered: Mar-06 | if the amp is 2 ohm stable on each channel and you bridge it, that "channel" is now only stable at 4 ohms or if it is 1 ohm stable, bridged it is only 2 ohm. just be careful of that |
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Bronze Member Username: Foong_onePost Number: 27 Registered: Jan-07 | So, if the amp is stable at 4 ohms per channel, and we bridge them, then now, we got 8 ohms stable total. This'll mean less power going to a 4-ohm sub, which'll make it sound less loud? Correct me if I'm wrong please, somebody. I need to get this right, coz I don't wanna spend my money for nothing. I'm not as rich as you guys here. |
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Gold Member Username: Sploosh56Ohio Post Number: 1612 Registered: May-04 | yea i'm doing it right now until i have the money for more power wire and a distribution block for my sub amp |
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Silver Member Username: ShortysetniesRock Vegas, NC US Post Number: 968 Registered: Mar-06 | if the each channel is 4 ohms and you bridge it, the amp will only be stable down to 8 ohms. what is the VC config of your sub? |
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Bronze Member Username: Foong_onePost Number: 28 Registered: Jan-07 | Thanx, Andrew. It's SVC, not DVC. You know, in fact, this is what I have: Factory HU The Jensen JPA460 amp 6.5" Polk dB650 (front doors) 6" x 9" Bostons S95 (rear deck), and 12" Boston G212-4 (sealed box): http://www.crutchfield.com/S-DAXm166PSUN/cgi-bin/ProdView.asp?g=520&I=065G2124 |
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Silver Member Username: ShortysetniesRock Vegas, NC US Post Number: 971 Registered: Mar-06 | I'll just go ahead and say that that amp isnt putting out near what it says it is. if you can return it, do it. to be honest I'm not sure how it works with bridging 2 and leavin 2 normal but I'm pretty sure you can do what your saying and it will run at 4 ohms. get a second opinion about that first though. like I said though, that amp ISNT putting out what it says it is |
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Bronze Member Username: Foong_onePost Number: 29 Registered: Jan-07 | So, F#&KING lying bast_ards at Audiovox, huh? |
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Bronze Member Username: Foong_onePost Number: 30 Registered: Jan-07 | Anyway, that sub/amp system was put together by a very well-respected car audio shop around my way (and they were, pretty much, THE 2nd opinion...after Circuit City). |
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Silver Member Username: Arande2400dB could probably d..., SouthWest Mi... Too Many DBs... Post Number: 953 Registered: Dec-06 | I'm Bored.. |
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Bronze Member Username: Foong_onePost Number: 31 Registered: Jan-07 | Andy Money, those TC subs look tres nice. |
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Gold Member Username: JohnfiacIL Afghanistan,... Post Number: 1172 Registered: Mar-06 | most 4ch amps are 2ohm stable channel's and 4ohm bridged they arent really meant for subs either mono blocks are made for subs  but they still make bass either way lol |
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