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Reload Thread: Alpine type r 12 with jbl bp 300.1 help me adjust the amp settings please

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    Alpine type r 12 with jbl bp 300.1 help me adjust the amp settings please

    Ok went and bought a alpine type r 12 for the jbl bp300.1 amp today. We picked up a flea market box for this setup. It's slot ported. The guy wired it for 1 ohm. So from the amp to sub I just connect positive to positive and negative to negative and its 1 ohm correct? Since it is just one sub I leave the other sub connection alone right because it has 2? Could you please tell me a good spot to set the input level, lpf freq, and bass boost. I just want to make sure so we dont clip or blow the sub. With my amp it should get decently loud shouldnt it?







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    Re: Alpine type r 12 with jbl bp 300.1 help me adjust the amp settings please

    Ok we hooked the sub up. The place i bought it off wired my sub to 1 ohm in the box. My amp is 300.1 at 2 ohms. This is wrong right. The sub should be wired at 2 ohms in the box as well right? Its in a slot ported box. 4 gauge wiring kit. It sounds like **** right now. Were using like one of the lowest quality jvc cd players. I was planning on ordering a nice pioneer monday that would help alot wouldnt it? Any help would be great. I know this sub has alot of potential but it sounds like **** right now. Also a suggestion on where to set bas boost, lpf, and the input level would be helpful.




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    Re: Alpine type r 12 with jbl bp 300.1 help me adjust the amp settings please

    Let me clarify. In the box he is running positive to positve negative to negative. Isnt there another way this is supose to be wired?




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    Re: Alpine type r 12 with jbl bp 300.1 help me adjust the amp settings please

    i think the "flea market box" is your main problem... running that JBL at 1 ohm probably isnt too great either, but if youve got a dual 2 ohm, you can only get 1 or 4 ohms final, not 2.




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    Re: Alpine type r 12 with jbl bp 300.1 help me adjust the amp settings please

    running that JBL at 1 ohm probably isnt too great either,
    The BP series will do one ohm loads, no extra output power down there, but they will be stable driving that impedance.




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    Re: Alpine type r 12 with jbl bp 300.1 help me adjust the amp settings please

    I have the dual 4 ohm alpine. We are getting rid of that **** flea market box. Im ordering 2 more for her and going sealed and building the box. With a better amp. I know the flea market box ***** but how should I wire them now to sound decent?




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    Re: Alpine type r 12 with jbl bp 300.1 help me adjust the amp settings please

    http://jlaudio.com/tutorials/wiring/index.html sub wiring faq from jl site. very helpful imo




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