Jump to content

antoinez28

Members
 View Profile  See their activity

  • Content Count

    817

  • Joined

  • Last visited

  • Days Won

    10

Posts posted by antoinez28

  1. Posted · Edited by Antoine'stahoe155+

    _20150529_033414_zpsxkxk1dft.jpg

    My highest score is not on here because I went over the max watts in that class but it was a 153.6 on 4600watta @ 43hrz meter on dash with the new termlab...

    Got alot of work to do to get from 153 to 160 . . Hope you do it man!
    I know it will be hard...but I'm up it plans are in the works I have the Tridents ordered dual 1 plane to wire down to .5 and have another TS8.5 on hold for me...next will be wires but all in the works should be up to par by finals

    Plus I still never seen what it do full tilt or wired down to .25 on a burp

    0

  3. Posted

    Decided earlier that it was time to be mean to the ethos. Cranked my amp way up and raised the sub lvl to 10(max). I let it rip for about 20 minutes until my new neighbors came out and stared staring. They took it like a champ though barely got warm. That might have just been from being in a hot ass trunk all day though. I didn't check before i started.

    Need a vid on it man

    0

  24. Posted

    from what I can tell the subs are split apart by a double screen door brace and the port

    ( say good bye to acoustic coupling ) ...you just lost up to 3db right off the bat before you even turn the subs on

    Kind of a misleading statement... The drivers could be completely dis-coupled (as you state it) and loose zero net output if there are no phase differentials... It is simply about phase issues between drivers, that is rarely an issue if the box is somewhat symmetrical... In a properly build enclosure, there is never any output gained by common airspace, the only exception being minimum vent dimensions...

    not completely

    I made that statement after years of testing with a termlab , I'v even built removeable baffles so I could test the difference with the

    subs together and apart , the improvement is not always dramatic but I always get better results with the subs almost kissing each

    other in the same cavity

    the old school rule of thumb is to be with in a voice coil diameter of each other but I try and keep them about an inch apart

    Mutual Coupling of Loudspeakers

    Mutual coupling of two or more loudspeakers occurs then they are reproducing th same signal with their acoustic centers close together and pointing in about the same direction at wavelengths smaller than the distance between the two centers. The combined sound signal is propagating forward like one single waveform, the two or more smaller drivers behave like one larger one.

    The centers of two loudspeakers must be close enough together between 1/4 wavelength and 1/2 wavelength. The higher the wavelength the shorter the necessary distance between the two centers to build up mutual coupling.

    The actual effect is always direction depending because of cancellations off-axis. Actually (theoretically) the coupling exactly on-axis occurs always independent of the spacing. At smaller wavelengths cancellation occurs earlier off-axis. At longer wavelengths the angle off-axis without strong cancellations is larger. The mutual coupling should be seen a an effect of the average sound level on-axis and off-axis. The acoustic centers' distance and the wavelength of the signal actually determine the angle over which mutual coupling occurs. mutual-coupling3.jpg no mutual coupling with acoustic centers

    more than 1/2 wavelength separated mutual coupling with acoustic centers

    less than 1/2 wavelength separated

    With two loudspeakers next to each other at a distance of more than the wavelength of the reproduced frequency the average measured volume on-axis and off-axis adds up for +3dB (double power). With two loudspeakers close enough to get mutual coupling the volume adds up for +6dB.

    Because of the physical size of loudspeaker chassis mutual coupling always occurs only at frequencies below about 500 Hz.

    So would this still work when using 4 subs or more a inch apart

    0

  25. Posted · Edited by Antoine'stahoe155+

    Have not been on here in a while with a update but alot have change....

    NEW GOAL try to be one of the loudest nowall tahoes....not that many out there so I want to be apart of that. with being said made a cople changes to the box. more braces and paint it to match my interior and exterior paint KIMG0108_zpsyt5waodq.jpg

    KIMG0109_zpslhfw6toc.jpg

    After that. I had got me a temp battery bank until I pay off the one I really want . Battery bank should help with my 10k burps...

    And I did not cut anything to have them go across the back seats....

    (200.00 battey bank why not)KIMG0111_zpsl8gktkz4.jpg

    KIMG0113_zpsladrql2g.jpg

    770ah and 540 alt power

    0
×