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    Icon32 Quantum Amplifier Impedance Mix

    Good day Friends of Caraudio, today I am upset because I have a question with the audio of my car, I have a QE2400.4 Quantum Amplifier, it is a 4-channel amplifier, I am currently using it with 2 speakers 6x9 pioneer 230W max @ 4 Ω and I was thinking about acquiring a pair of Pionner subwoofers ts-w260d4 of 350 W RMS and double coil and 4 Ω, but when reading the characteristics of the Ampli I am a doubt, the information is the following:

    4 x 125 Watts @ 4 Ohm Stereo
    4 x 250 Watts @ 2 Ohm Stereo
    2 x 750 Watts @ 4 Ohm Bridged

    my question is, can I leave the speakers working as usual until 4 Ω at 125W on two channels and on the other two add the subwoofer at 2 Ω and work with the 4 at the same time? Is it possible to work like this? What do you recommend me to do?
    Thanks in advance.







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    Re: Quantum Amplifier Impedance Mix

    You might be better off getting a mono amp to power those subs with and just use that 4 ch amp to power your speakers with.

    Btw, those Quantum amps are a joke for ratings.



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    Re: Quantum Amplifier Impedance Mix

    Quote Originally Posted by titanbangle View Post
    Good day Friends of Caraudio, today I am upset because I have a question with the audio of my car, I have a QE2400.4 Quantum Amplifier, it is a 4-channel amplifier, I am currently using it with 2 speakers 6x9 pioneer 230W max @ 4 Ω and I was thinking about acquiring a pair of Pionner subwoofers ts-w260d4 of 350 W RMS and double coil and 4 Ω, but when reading the characteristics of the Ampli I am a doubt, the information is the following:

    4 x 125 Watts @ 4 Ohm Stereo
    4 x 250 Watts @ 2 Ohm Stereo
    2 x 750 Watts @ 4 Ohm Bridged

    my question is, can I leave the speakers working as usual until 4 Ω at 125W on two channels and on the other two add the subwoofer at 2 Ω and work with the 4 at the same time? Is it possible to work like this? What do you recommend me to do?
    Thanks in advance.
    To use the bridge for your subs you need to run 4 ohm.

    2 ohm will kill your amp.
    Quote Originally Posted by Boomin_tahoe View Post
    You might be better off getting a mono amp to power those subs with and just use that 4 ch amp to power your speakers with.

    Btw, those Quantum amps are a joke for ratings.
    DB Drive junk lmao.. its just a db drive amp with cheaper internals.

    Sent from my Moto G (4) using Tapatalk




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    Re: Quantum Amplifier Impedance Mix

    Yes, you can. having different impedances on different channels of a multi-channel amp is never a problem as long as none of them are below their specified minimum.


    But don't get caught up with power ratings on an amp like that.
    Judging by the 40A of fuse protection it is drastically over-rated. Figure on 100x4 at 2 ohms. Probably ~75x4 at 4 ohms.
    So if you have a pair of 4 ohm speakers on 2 channels and a pair of dvc 4's on the other two you'd be looking at about 75w per speaker and about 100 per sub.

    Don't run the subs at 2 ohms per channel. Wire them for 4 and bridge those two channels.

    https://www.the12volt.com/12voltimag...m_dvc_4ohm.gif




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    Re: Quantum Amplifier Impedance Mix

    yes 2 ohm stereo will work but u can also run 2-4 speakers off 2 channels and bridge other 2 channels to 1 sub ported., more power to 1 sub in louder box.. i suggest u get a mono amp (let us help u pick one) and u can get 1 pioneer 3003 pro much better sub ($75 ebay) or sound qubed hds $85 on sale now and run maybe 500 rms to it from the mono amp at 2 or 1 ohm depending on sub u get..



    KENWOOD X301 HU, PRECISION POWER Phantom 1000, FU 750 12, custom 2.11 cf ad ported tuned @ 36hz 30.375 port area, soundqubed 6.5" coax xover (hu), AGM starting batt... FU 750 destroying my spoiler https://www.youtube.com/watch?v=joeeCIZJpUs pioneer 3003 videos https://www.youtube.com/watch?v=rTcgVGvuFX8 https://www.youtube.com/watch?v=WI4yGDqN27g
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    Tyou n ever xhappyx...i have bmy 15's rockin [email protected] 1 ohm htoo.

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    Re: Quantum Amplifier Impedance Mix

    Quote Originally Posted by BOOMINGRANDPA View Post
    yes 2 ohm stereo will work but u can also run 2-4 speakers off 2 channels and bridge other 2 channels to 1 sub ported., more power to 1 sub in louder box.. i suggest u get a mono amp (let us help u pick one) and u can get 1 pioneer 3003 pro much better sub ($75 ebay) or sound qubed hds $85 on sale now and run maybe 500 rms to it from the mono amp at 2 or 1 ohm depending on sub u get..
    Why are you suggesting subs when he has some already??



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    Re: Quantum Amplifier Impedance Mix

    Quote Originally Posted by Boomin_tahoe View Post
    Why are you suggesting subs when he has some already??
    he said i'm thinking about getting these..... not that he has them.. why don't u worry about reading op post instead of mine?



    KENWOOD X301 HU, PRECISION POWER Phantom 1000, FU 750 12, custom 2.11 cf ad ported tuned @ 36hz 30.375 port area, soundqubed 6.5" coax xover (hu), AGM starting batt... FU 750 destroying my spoiler https://www.youtube.com/watch?v=joeeCIZJpUs pioneer 3003 videos https://www.youtube.com/watch?v=rTcgVGvuFX8 https://www.youtube.com/watch?v=WI4yGDqN27g
    boomintahoe gets on me for spelling lol..
    Tyou n ever xhappyx...i have bmy 15's rockin [email protected] 1 ohm htoo.

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    Icon12 Re: Quantum Amplifier Impedance Mix

    Thanks for your answers, at the moment I can not add another amplifier, so it would be more advisable to leave the speakers and add only a subwoofer in bridge mode? what dou you recommend?




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    Re: Quantum Amplifier Impedance Mix

    Quote Originally Posted by titanbangle View Post
    Thanks for your answers, at the moment I can not add another amplifier, so it would be more advisable to leave the speakers and add only a subwoofer in bridge mode? what dou you recommend?
    Post#4 is the perfect answer for ya.

    I would get a single DVC then use the channels 3& 4 from amp to power it.



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    Icon7 Re: Quantum Amplifier Impedance Mix

    I do not understand the diagram very well, but I will review it and put it to the test, thanks for your help.




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    Re: Quantum Amplifier Impedance Mix

    Quote Originally Posted by titanbangle View Post
    I do not understand the diagram very well, but I will review it and put it to the test, thanks for your help.
    It's very easy...I can break it down for ya. Say You have a DVC sub. You wanna wire it to achieve a certain ohm load. Simply take a piece of speaker wire and connect it to the - of one terminal and either - or + to the other. Same with the other coil terminal. Then take speaker wire and wire it to the sub, doesn't matter which side, then to amp.



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    Re: Quantum Amplifier Impedance Mix

    Sorry friend, is that my English is not very good, I understand then that if you can do what I need? Making the connection as you just explained it would be working at 2 ohms? Could I connect both subwoofers and keep my other two speakers?




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    Re: Quantum Amplifier Impedance Mix

    If those subs don't exceed the amps' ohm ratings.



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    Re: Quantum Amplifier Impedance Mix

    I agree with the suggestion of going with a single sub instead of a pair.
    You have ~200w rms available which is a good amount of power for a lot of low/mid level subs. And the extra work/cost/space requirement to get a pair of subs up and running wouldn't be worth it.

    Since bridging two channels needs a 4 ohm load to work best you want a sub with either a single 4 ohm voice coil or dual 2 ohm voice coil.
    https://www.sonicelectronix.com/item...Impedance.html
    https://www.sonicelectronix.com/item...DB1242SVC.html
    https://www.sonicelectronix.com/item...h-P2D2-12.html
    https://www.sonicelectronix.com/item...-12-m4-D2.html

    many other options.




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    Icon7 Re: Quantum Amplifier Impedance Mix

    I will go better with the option of a single subwoofer, thanks for your help.




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