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    Hi from Greece!! Help me please..

    Hello everybody. This is Gus from Greece. I own a kia picanto 2007 and i want your help. Fisrt of all, forgive if i make mistakes, i can't speak enhlish fluency ..

    Well, i put on my car two amplifiers. The first one is a 4channel blaunpunkt gta 480 which is connected with my subwoofer signat onyx 112 and plays only the sub..
    The other amplifier is a 2channel axton C400, or something like that (i can't remember well) and this one is connected with focal 130A1 speakers. I want to tell me how i should setup my 4 channel amplifier so that it will not be damaged or my subwoofer won't be damaged too.

    So, i want you to tell me how to set the input sensitivity, the bass boost, the frequences etc. Please tell me rates. For example, the dbs goes from 0-12, the frequency from 50Hz-250Hz and the gain from 0.3V-8V.. Which are the "right" rates?


    These are gta's 480 technical details:


    GTA 480
    Max. Total Power @ 4 Ohms 850 Watts
    Max. Power at 4 Ohms 4 x 160 / 2 x 425 Watts
    Max. Power at 2 Ohms 4 x 210 Watts
    RMS Power at 4 Ohms 4 x 75 / 2 x 210 Watts
    RMS Power at 2 Ohms 4 x 105 Watts
    Number of channels 4/3/2
    Frequency response 10 - 35,000 Hz
    Signal to noise ratio > 95 dBA
    Distortion factor (@ full RMS Power) < 0,03 %
    Input impedance > 10 kOhm
    Attenuation factor (@ 4 Ohms) > 100
    Input sensitivity 0,3 - 8 V
    Input sensitivity Direct Aux Input 300 mV
    Stability 2 Ohms (4 Ohms bridged)
    Lowpass 50 - 250 Hz (12dB/Octave)
    Highpass 50 - 250 Hz (12dB/Octave)
    Bass Boost 0 - 12dB @ 45 Hz
    Inputs 4 x Cinch/RCA gold plated, 4 x HighLevel, 2 x Direct Aux Input via 3.5 mm phone jack
    Outputs 4 x loud speakers
    Dimensions (w x h x d) 352,5 x 53 x 268,5 mm


    and these are the technical details for the sub:


    System single sealed box
    Diameter 1x12"
    Continuous powerhandling 150 Watts
    Maximum power handling 300 Watts
    Nominal impedance 4 Ohms
    Sensitivity 91dB/w/m
    Overall dimensions 410x384x314/204
    Box volume 26 liters
    Terminals gold-plated push
    Woofer basket stamped steel powdercoated
    Voice coil 25mm aluminum 4-layer



    Well???







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    Re: Hi from Greece!! Help me please..

    It is quite inefficient to run that sub, needing only 150 watts, off a 4-channel amp. You really need to look at the RMS ratings of the subs and amp you are connecting them to. My advice would be to either get a smaller amp, or get a second sub. What are the specs for the Axton amp?

    If however, you want to just keep the equipment you have, bridge 2 channels of your 4 channel:

    Sub + to Amp channel 1 +
    Sub - to Amp channel 2 -

    Bass boost set to 0db's
    Gain set low
    crossover around 80hz




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    Re: Hi from Greece!! Help me please..

    db's 0-4 Frequency at 50 gain at whatever your CD player RCA output voltage is to prevent distortion.



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    Re: Hi from Greece!! Help me please..

    i would run the 2ch on the sub and the 4 ch on the speakers.



    http://www.caraudio.com/forums/buyer-seller-feedback/414807-michaellane-feedback-if-i-bought-you-traded-i-sold-you-something.html

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    Re: Hi from Greece!! Help me please..

    Quote Originally Posted by michaellane View Post
    i would run the 2ch on the sub and the 4 ch on the speakers.
    x2



    REFERENCES: Bland, TeamXSSChris, TBH1 SOLD TO: Therum, JKD, Talon09, Thorshammer1, Delan, psychoacoustics, rosshimself13, splaffair, hoboham, dvldogyut, undeadxsunshine, big_way32, perfectcircle, aeroportspwn, kraudio12, biggen_bd, Aldundra, SoCalBean420, ludeman, carlos_g313, JOHNJOHN485,beatnbronco,mecabassboy, HelloImBobBOUGHT FROM: t3audios_160sdbjeep, DefJ, twistedchild420, bassAddictJ, Infamous_e46, benzmansl65amg, sub2weeker, RetroAudioinc x2, SPLBlazer, TeamPSI, SPLAUDIO, orangecounty1, akmarcos20gauge TRADED: banginbigdodge, One Bad MOFO, Ge_off_me.
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    Re: Hi from Greece!! Help me please..

    I've put the sub with the blaunpunkt first and after months the other set and that's the reason they are connected like this. The amplifier is bridged (Channel 3 and 4). The axton amplifier is 2X100rms at 4ohms. When you tell gain low.. how low for example?
    My headunit is sony GTX410U






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    Re: Hi from Greece!! Help me please..

    run your speakers off the 4-channel and the sub off your two cahnnel if thats the case. Do you know if that amp is bridgable? What kind of power would it put out in that case.

    To make the gain lower, turn towards 3v or lower if possible




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    Re: Hi from Greece!! Help me please..

    Quote Originally Posted by PioneerSPL1990 View Post
    gain at whatever your CD player RCA output voltage is to prevent distortion.


    Max. Pre-amp output level=2 V for my sony GT410U

    So...???




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    Re: Hi from Greece!! Help me please..

    You would set your gain higher then




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    Re: Hi from Greece!! Help me please..

    stocker08 if you mean the 4channel amplifier yes it's bridgable.. 2X210rms in this case. I'm afraid of my headunit and subwoofer's life!




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    Re: Hi from Greece!! Help me please..

    Quote Originally Posted by stocker08 View Post
    You would set your gain higher then

    I have it in about 4V-5V now




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    Re: Hi from Greece!! Help me please..

    So, i'll set the boost to 2db frequency to 80-90Hz and gain to 6V. Are these ok?




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    Re: Hi from Greece!! Help me please..

    I would set boost to 0db and gain to around 4V as you are already overpowering your sub.




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