Closed Thread
Results 1 to 13 of 13

Reload Thread: Which amp will need more power from my alt and battery?

  1. #1
    Join Date
    Nov 2012
    Location
    Kings Mountain,N.C.
    Posts
    37
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Which amp will need more power from my alt and battery?

    MB Quart REF4.50 wired 2 ohms: 100 watts x 4 chan.


    MBQUART FX4.70 wired 4 ohms: 70 watts x 4 chan.


    Either will be connected to (4)Naxa NX-774
    120 RMS Watt Each 6.5 Inch 2-Way Coaxial Speakers

    Just for comparison reasons lets say the gain is set the same on both







  2. #2
    pickup1's Avatar
    pickup1 is offline Audiosystem,Dynaudio...



    Join Date
    Aug 2005
    Location
    Roanoke,TX
    Age
    49
    Posts
    7,624
    Post Thanks / Like
    Images
    19
    Mentioned
    29 Post(s)

    Re: Which amp will need more power from my alt and battery?

    Probably about the same...look at the fuses on the amps and see which one has bigger fuses. .




  3. #3
    wesburnsco86's Avatar
    wesburnsco86 is offline Member

    Threadstarter


    Join Date
    Nov 2012
    Location
    Kings Mountain,N.C.
    Posts
    37
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Which amp will need more power from my alt and battery?

    100 watts x 4 will push them harder but not blow them correct?




  4. #4
    whitedragon551's Avatar
    whitedragon551 is offline Moderator



    Join Date
    Mar 2009
    Location
    MI
    Posts
    12,975
    Post Thanks / Like
    Mentioned
    90 Post(s)

    Re: Which amp will need more power from my alt and battery?

    Blowing a speaker can be caused by more than just to much power. Clipping is probably the number 1 reason speakers/subs blow.



    CA.com FAQ's
    CA.com TOS Agreement
    Forum Rules



    HU: ///Alpine 9887, KCE-400BT, KCE-433IV, KTX-100EQ Imprint, 8Gb iPod Touch
    Front Mids: Eclipse SC6500
    Front Tweeters: Morel made Xtant 28MM Silks
    Subs: Audiomobile Evo 10" TC2+
    Enclosure: 1.1 Cubes sealed with 10 Ounces Poly Fill
    Amp: Audio Systems Twister F6 380 III

  5. #5
    pickup1's Avatar
    pickup1 is offline Audiosystem,Dynaudio...



    Join Date
    Aug 2005
    Location
    Roanoke,TX
    Age
    49
    Posts
    7,624
    Post Thanks / Like
    Images
    19
    Mentioned
    29 Post(s)

    Re: Which amp will need more power from my alt and battery?

    If you only going to use the amp on those speakers...I would go with the 70x4..
    If your going to do 2 ohm stereo. ...same amp...it will put out more power and you got 2 channels left over.




  6. #6
    wesburnsco86's Avatar
    wesburnsco86 is offline Member

    Threadstarter


    Join Date
    Nov 2012
    Location
    Kings Mountain,N.C.
    Posts
    37
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Which amp will need more power from my alt and battery?

    Dunno how to take a vote or I would but, what would you do?
    REF4.50 2 ohms 100 watts x 4

    FX4.70 4 ohms 70 watts x 4




  7. #7
    mclerico83's Avatar
    mclerico83 is offline CarAudio.com Veteran



    Join Date
    Oct 2009
    Location
    tampa
    Posts
    6,784
    Post Thanks / Like
    Mentioned
    19 Post(s)

    Re: Which amp will need more power from my alt and battery?

    New Cadence Q3000 Ultradrive Power Amplifier 2 Channel Amp Ultra Drive | eBay

    buy this, its an american made amp nice quality and really a steal thank me later




  8. #8
    wesburnsco86's Avatar
    wesburnsco86 is offline Member

    Threadstarter


    Join Date
    Nov 2012
    Location
    Kings Mountain,N.C.
    Posts
    37
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Which amp will need more power from my alt and battery?

    Quote Originally Posted by mclerico83 View Post
    New Cadence Q3000 Ultradrive Power Amplifier 2 Channel Amp Ultra Drive | eBay

    buy this, its an american made amp nice quality and really a steal thank me later
    It says 4 ohm: 100W x 2 ,I have 4 speakers can I wire them in parallel with 2 in each door ? 100W x 4
    Last edited by wesburnsco86; 01-05-2013 at 05:51 AM.




  9. #9
    pickup1's Avatar
    pickup1 is offline Audiosystem,Dynaudio...



    Join Date
    Aug 2005
    Location
    Roanoke,TX
    Age
    49
    Posts
    7,624
    Post Thanks / Like
    Images
    19
    Mentioned
    29 Post(s)

    Re: Which amp will need more power from my alt and battery?

    200x2...but yes...each speaker will see 100...




  10. #10
    wesburnsco86's Avatar
    wesburnsco86 is offline Member

    Threadstarter


    Join Date
    Nov 2012
    Location
    Kings Mountain,N.C.
    Posts
    37
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Which amp will need more power from my alt and battery?

    I believe I will do that, can someone link or post a parallel diagram that would work with 2 speakers in each door?




  11. #11
    pickup1's Avatar
    pickup1 is offline Audiosystem,Dynaudio...



    Join Date
    Aug 2005
    Location
    Roanoke,TX
    Age
    49
    Posts
    7,624
    Post Thanks / Like
    Images
    19
    Mentioned
    29 Post(s)

    Re: Which amp will need more power from my alt and battery?

    Positive to positive. ..negative to negative. ..take those 2 wires to your amp.




  12. #12
    wesburnsco86's Avatar
    wesburnsco86 is offline Member

    Threadstarter


    Join Date
    Nov 2012
    Location
    Kings Mountain,N.C.
    Posts
    37
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Which amp will need more power from my alt and battery?

    Quote Originally Posted by mclerico83 View Post
    New Cadence Q3000 Ultradrive Power Amplifier 2 Channel Amp Ultra Drive | eBay

    buy this, its an american made amp nice quality and really a steal thank me later
    I bought this amp and plan on using knu 4 ga kit
    Last edited by wesburnsco86; 01-07-2013 at 03:47 AM.




  13. #13
    mclerico83's Avatar
    mclerico83 is offline CarAudio.com Veteran



    Join Date
    Oct 2009
    Location
    tampa
    Posts
    6,784
    Post Thanks / Like
    Mentioned
    19 Post(s)

    Re: Which amp will need more power from my alt and battery?

    Quote Originally Posted by wesburnsco86 View Post
    I bought this amp and plan on using knu 4 ga kit
    you have a really sweet amp man and that will work perfectly




Closed Thread

Similar Threads

  1. New Subs need more power. What amp??
    By Serpent710 in forum Amplifiers
    Replies: 2
    Last Post: 03-05-2008, 05:14 PM
  2. need some more power for my yaris
    By drew113087 in forum Wiring, Electrical and Installation Help
    Replies: 12
    Last Post: 10-21-2007, 11:52 PM
  3. which amp will power these subs nice
    By monkeyman in forum Amplifiers
    Replies: 10
    Last Post: 07-30-2007, 01:19 AM
  4. Replies: 24
    Last Post: 04-05-2004, 07:00 PM
  5. I have 2 subs and 1 amp. Need more power. Another amp?
    By Warrior in forum General Discussion
    Replies: 1
    Last Post: 06-21-2003, 04:37 PM

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may post attachments
  • You may edit your posts

1e2 Forum