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Thread: Amps and subs

  
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    Amps and subs

    Right hello chaps, and chappettes, hoping for a few questions to be answered here

    Hvaing recently bought 2 rockford fosgate punch 12" subs off clokey i am wanting to fit them.

    Was wondering when it comes to Amping them, do i need to use a 4 channel amp and bridge them both, or can i use a 2 channel amp and run each one on their own channel?

    If i can use a 2channel amp, will my current infinity reference 7521a be anygood?

    If not will this be anygood?
    http://cgi.ebay.co.uk/BRAND-NEW-4-CH...QQcmdZViewItem


    cheers guys

    Jon
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    I'd be more inclined to use a mono amp and run them off the same terminal tbh mate. I'd check the impedances of the subs and see what you could do from there. Somthing like the Alpine MRP-M600 shoul dsuffice for them.

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    Hi ya buddy you haven't put the wattage or RMS of the subs but can't be done with the amp you have it's not 2ohm stable on the mono bridged channel

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    4 channel or a mono block mate.

    Ideally mono blocks are used just for subs although a4 channel will give out a crisper sound as oppozed to just bass as a general rule

    put up the details for the subs (what rms, dual or single voice coil etc) then you'l be able to match up an amp to power them.
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    As above

    Depending on what Ohms the Punch subs are, I'd go mono-block and see whether it can do 2 ohm stable or not, that way then the subs wont be out of phase, and running at the same rate
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    OK impedance rms and all that caboodle means bugger all to me lol, i just rely on what people tell me being good advice lol.

    In the instructions...

    its a P212S4

    Nominal Impedence 4ohms
    Power handling RMS 200
    Power handling MAx 400

    is this lot any help to you lot.

    I currently run the sub i have so its not just bass, so i guess its set on HPF?

    sorry for being so dense upon the matter but if you don't ask you dont learn....

    Jon
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    Subs need to be run on LPF other wise you stand a good chance of burning out the coil they are just designed to produce bass not vocal or other high end frequencies The JBL wont run them mate and i don't like what the guy is saying about it being higher watts than what is has on the box

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    ok so wont run the sub like that anymore lol,

    so 4 channel is what i need tho?
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    Ohm loads play a VERY important role in Audio, you turn your nose up at it, and it may cost you a hell of a lot or cause a fire

    Anyway best route in my opinion is get a small monoblock amplifier, as that JBL wont be cut out for the job

    Something like this JBL 301.1

    Perfect match really

    Are you keyed up on parallel and series wiring? If you intend on running the two subs, you'll have to go paralel, meaning splitting the positive wire and negative wire , so you've got two sets of wires, one set going to each sub
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    what i currently have is my amp power cable goin to a distibution block, whic then has 2 power cables running to 2 amps, both are earthed, and my remote wire goes from the cigar lighter socket to one amp then joins to the next.

    1 amp powers my current sub, the other powers the 6x9s.

    would it be better to have a 4 channel amp and ditch both my amps, use 2 channels for the 6x9s and use the other 2 channels for the subs?

    before it is said, ditching the 6x9s wont happen as they work for me for the time being.
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