Closed Thread
Results 1 to 10 of 10

Reload Thread: over rated Bullsh*t

  1. #1
    jayroc2k's Avatar
    jayroc2k is offline Member



    Join Date
    Mar 2004
    Location
    london
    Posts
    58
    Post Thanks / Like
    Mentioned
    0 Post(s)

    over rated Bullsh*t

    i have a rockford 551x (75*4). on the "birth certificate" it is said that the amp was tested at 14volts. yet it seems to be general knowlede that rockford amps and other expensive brand names are underrated.

    i think they are correctly rated and the cheaper amp are OVERRATED.

    take note







  2. #2
    jayroc2k's Avatar
    jayroc2k is offline Member

    Threadstarter


    Join Date
    Mar 2004
    Location
    london
    Posts
    58
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: over rated Bullsh*t

    i have mine running a 12" sub bridged. it is quite adequate. that means enuf bass for me in the car. not for the whole city to hear!!!1




  3. #3
    LimPerT's Avatar
    LimPerT is offline Senior VIP Member



    Join Date
    Apr 2004
    Location
    Grapevine, TX
    Posts
    407
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: over rated Bullsh*t

    i dont see why u would need the whole city to hear...




  4. #4
    jayroc2k's Avatar
    jayroc2k is offline Member

    Threadstarter


    Join Date
    Mar 2004
    Location
    london
    Posts
    58
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: over rated Bullsh*t

    i don't need tgo whole city to hear, i just wanted to place a thread that deals with all the one million, how many watts do i need??? 2x50 or 1000WATTS!!!!!




  5. #5
    urwhatueati8god's Avatar
    urwhatueati8god is offline He tasted like chicken.



    Join Date
    Aug 2003
    Location
    NJ
    Age
    28
    Posts
    187
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: over rated Bullsh*t

    Um... all you need to do is take the amount of amps that the fuse(s) can handle and times it by 13.8...




  6. #6
    tommyk90's Avatar
    tommyk90 is offline THE WHOLE THING!!!



    Join Date
    Oct 2002
    Location
    Chicago Heights, IL
    Age
    30
    Posts
    16,638
    Post Thanks / Like
    Images
    20
    Mentioned
    29 Post(s)

    Re: over rated Bullsh*t

    Quote Originally Posted by urwhatueati8god
    Um... all you need to do is take the amount of amps that the fuse(s) can handle and times it by 13.8...
    Well, that would give you an OVERestimate because your calculation assumes 100% efficiency and its drawing max current at all times.

    What i like to do is take the amount of fuses x 13.8 x the efficiency rating.




    Team Kicker (R.I.P.)
    Team Sundown
    Team Maxxsonics
    Team XS Power
    Team DD
    Team Audio Technix
    Team B2 Audio
    Team Mechman
    Team Tantric Sounds

    2008 Bassrace 130-139.9 Regional and National Champion
    2006, 2007, 2009, 2010 and 2012 MECA Champion (S1, SR1, DB1, S2, S3, S4)

    One DD 9510 powered by two Sundown SAZ-2500's
    Kicker KS tweeters, MB Quart 5.25's active on an MB Quart DSC480
    Kicker wiring throughout.



  7. #7
    Bumpin' Yota's Avatar
    Bumpin' Yota is offline CarAudio.com Elite



    Join Date
    Mar 2003
    Location
    FL
    Age
    35
    Posts
    953
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: over rated Bullsh*t

    lol

    Me, I like to bust out my buddies clamp meter and FLUKE DMM, play my favorite frequency (47hz), then multiply the two RMS readings - boom there's your power at that note just under clipping. No, not peak power, but RMS power as the meters already are multiplying the average output by .707...




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



    Join Date
    Feb 2004
    Location
    Montana
    Posts
    108
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: over rated Bullsh*t

    Quote Originally Posted by tommyk90
    Well, that would give you an OVERestimate because your calculation assumes 100% efficiency and its drawing max current at all times.

    What i like to do is take the amount of fuses x 13.8 x the efficiency rating.
    So what would you guys the efficiency generally is, 66%? 75%? I don't really know, just curious.



    Headunit - Panasonic CQ-DF783U
    Door Speaks - Alpine S 5.25"
    Rear Speaks - Infinity Kappa 6.5"
    Sub Amp - Hifonics NX400
    Sub - Adire Audio Shiva 12" in 2 cubes ported to 29hz.

  9. #9
    Bumpin' Yota's Avatar
    Bumpin' Yota is offline CarAudio.com Elite



    Join Date
    Mar 2003
    Location
    FL
    Age
    35
    Posts
    953
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: over rated Bullsh*t

    Quote Originally Posted by tomd
    So what would you guys the efficiency generally is, 66%? 75%? I don't really know, just curious.
    when pushed to just under clipping on a tone - try 50-60% at best for any amp.




  10. #10
    bergnerk's Avatar
    bergnerk is offline SPL junky



    Join Date
    Apr 2004
    Location
    WI
    Age
    29
    Posts
    141
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: over rated Bullsh*t

    hi yota jsut dropped by to say hi
    stilll cant find you : (
    expect to see you in manty soon for the face off




Closed Thread

Similar Threads

  1. Quick and easy question on rated power..
    By Zylo in forum Amplifiers
    Replies: 3
    Last Post: 05-09-2004, 06:00 AM
  2. WANTED: Amp rated at 300watts @4 ohms or below
    By t-rex in forum Amplifiers
    Replies: 1
    Last Post: 05-09-2004, 04:25 AM
  3. PPI PCX amps rated at 12volts??????
    By Fr0sty51 in forum Amplifiers
    Replies: 1
    Last Post: 03-25-2004, 06:12 PM
  4. Replies: 1
    Last Post: 02-27-2004, 06:12 PM
  5. need a 1500 watt amp rated at 12 volts.
    By cobra65427289 in forum Amplifiers
    Replies: 3
    Last Post: 01-08-2004, 09:47 PM

Posting Permissions

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

1e2 Forum