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    ogustuce's Avatar
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    Unknown problem, please help =)

    My problem is when i put the volume to 30+ (up to 50) my 4 speakers stops working. so the 4 speakers stop working and i only hear tweeters and the subwoofer. if i turn off my radio and turn it back on, the speakers work again normally but will shutdown eventually if i dont lower the volume.

    Here is how everything is plugged (pretty much)
    i have 1 amp for the 2 subwoofer( pheonix gold 2 chan 700w/chan) and 1 amp for the speakers (sony xplod 4 chan 60w/chan) and 1 capacitor for the sub's amp

    4 speaker wires from the back of the radio -> amplifier then amplifier -> each speaker (4 total)
    RCA (from the radio) -> subwoofer amp
    remote -> "Y" split -> to each of the 2 amps
    Power: 4gauge from battery -> distribution block -> 1x 8gauge wire to speaker amp and 1x 8 gauge wire -> capacitor -> sub's amp
    ground: (x3) 4 gauge wire. 1 for each amp and 1 for the capacitor and all grounded at different spots.


    here is the amps specs:

    sony xplod xmgtx6040 - 600w (my speaker's amp)

    Channel Configuration 4/3
    Power Supply MOSFET Power Supply
    Maximum Output Power 150W 2 (at 2 ohms) + 300W 1 (at 4 ohms BTL), 110W 4 (at 4 ohms)
    Rated Output Power 70W 4 / 1.0% (at 2 ohms), 60W 4 / 1.0% (at 4 ohms)
    High Pass Filter / Slope 80Hz (Variable), -12dB/oct (Selectable)
    Low Pass Filter / Slope 80Hz (Variable), 18dB/oct (Selectable)
    Frequency Response 5-50kHz
    Signal-to-Noise Ratio 100dB
    Total Harmonic Distortion (1kHz) 0.05%
    Input: Number of Channels 4
    Tolerance +0/-3dB
    Dimensions (W x H x D) 384 55 252mm
    Weight (kg) Approx. 3.1kg

    pheonix gold xs2500 - sub's amp

    * 2 Channel Mosfet Amplifier
    * PWM Mosfet Power Supply Defeatable
    * Advanced Overload and Thermal Protection
    * Hi Level Input Connections
    * Advanced Muting Circuitry Eliminates Turn-On And Turn-Off Noises
    * Metal Film Capacitors/Resistors In Signal Path
    * 24kt Gold Plated High Current Power And Speaker Terminals
    * Isolation Mounting Feet
    * Optional XS Link For Seamless Multiple Amplifier Installation
    * Frequency Response +/-1dB, 20Hz to 20 kHZ
    * Signal to Noise Ratio (A-weighted) >100dB
    * Max Continuous Bridged Power @ 1% THD 500 watts x 1 into 4 ohms @ 14.4 Vdc
    * Max Continuous Power per Channel @ 1% THD 250 watts x 2 into 2 ohms @ 14.4 Vdc
    * Nominal Continuous Power per Channel @ 1 % THD 150 Watts x 2 into 4 ohms @ 14.4 Vdc
    * IASCA/USAC Power Rating 50 Watts x 2 into 4 ohms @ 12.5 Vdc
    * Minimum Load when Bridged 2 Ohms
    * Minimum Load per Channel 1 Ohm
    * Input Signal Voltage Range 0.1 volts to 2 volts
    * Crossover Type Resisitor Network, Linkwitz Riley,
    * Highpass/Lowpass Crossover Slope 24 dB per octave
    * Crossover Frequency Range 20-550Hz
    * Factory Crossover Setting 85Hz
    * Auxilary Output Channels 2 Auxilary Output Frequency Range Rnet
    * Bass Boost 0- to +18dB @ 45 hZ
    * Power Supply Voltage 10Vdc to 15.5Vdc
    * Recommended Fuse 60 amp
    * Dimensions 9.25L x 9.25W x 2.10H

    -speaker specs-

    soundstream arachnid
    Size & Type 6.5" 2-way
    Power Handling (watts) 80
    Efficiency 92dB
    Top Mount Depth 2.5"

    •Polypropylene Injection Cone
    •NBR Rubber Surround
    •1" Voice Coil on Aluminum Former
    •Quick Disconnect Terminals
    •Conex Spider Suspension
    •1" Flush Mount Dome Tweeter
    •Passive Crossover Included
    •Speaker Grill Included
    •Frequency Response: 70-20kHz




    what could cause my speakers to stop working when i put it loud =o? the problem is recent, i didnt have that problem before. the speakers amp is set to 1 and the speakers are stoundstream 80w, 4 ohm
    Last edited by ogustuce; 02-06-2013 at 09:21 PM.







  2. #2
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    Re: Unknown problem, please help =)

    could be an ohm load issue sending the amp into protect



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    Re: Unknown problem, please help =)

    Quote Originally Posted by ThatChevyGuy View Post
    could be an ohm load issue sending the amp into protect
    and how could i resolve that problem? plug 2 speakers in the same 'hole' to lower the ohms? (i read somewhere that when you adds ohms togheter it actually substratct them? ex: 4 ohm + 4 ohm = 2ohm)




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    Re: Unknown problem, please help =)

    It's most likely that POS Sony Xplod amp. Ditch it and the capacitor while you're at it and get a decent amp.




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    Re: Unknown problem, please help =)

    Quote Originally Posted by Tenacious View Post
    It's most likely that POS Sony Xplod amp. Ditch it and the capacitor while you're at it and get a decent amp.
    what would you recommen lol? i dont have 500$ to spend for an amp....




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    Re: Unknown problem, please help =)

    Quote Originally Posted by ogustuce View Post
    what would you recommen lol? i dont have 500$ to spend for an amp....
    Almost anything is better than a Sony amp.. You need something that outputs about 40w per channel at 4 ohms for those speakers.

    A MB Quart REF4.50 would only be $90 and would be much better... Just make sure the problem is the amp itself and not your wiring or something else




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    Re: Unknown problem, please help =)

    sounds like your sending the amp into protect, try setting your gain down. Your pulling to many ampheres, and that amp is seeing a low voltage.




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    Re: Unknown problem, please help =)

    Quote Originally Posted by AxT4430 View Post
    sounds like your sending the amp into protect, try setting your gain down. Your pulling to many ampheres, and that amp is seeing a low voltage.
    the amp is set to '1' (the little wheel behind the amp), so you think i should set that wheel lower than 1 =o? it goes from 0 to 2.

    (just to be sure i understood what you said correctly)




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    Re: Unknown problem, please help =)

    Yes, set the GAIN nob lower. Then test your speakers agian, this will not confirm 100% what the culprit is but try it and see! Also, do you have a dmm/multimeter? Do you know how to set your gain with it?




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    Re: Unknown problem, please help =)

    Quote Originally Posted by AxT4430 View Post
    Yes, set the GAIN nob lower. Then test your speakers agian, this will not confirm 100% what the culprit is but try it and see! Also, do you have a dmm/multimeter? Do you know how to set your gain with it?
    nope, please tell me. i like to learn




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    Re: Unknown problem, please help =)

    How to Set Your Gains

    That one is just using your ears, which is fine if you have experience.. but there is better way for noobs, Im too tired to write it up.. So ill search fast for a good review




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    Re: Unknown problem, please help =)





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  14. #13
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    Re: Unknown problem, please help =)

    thank you, will try this out




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    Re: Unknown problem, please help =)

    Quote Originally Posted by ogustuce View Post
    thank you, will try this out
    You can simply just cut your gain in half, then by half again and see if it solves your problem.


    Then actually set it!

    Also, any general car parts store may let your rent a diagnostic multi meter if you dont want to buy one!




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