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AMI CUSTOMS

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Posts posted by AMI CUSTOMS

  1. anyone had any experience with audioque 120.4

    in Amplifiers

    Posted

    Everytime you drop ohm load in half you drop damping control in half, that is the ability for the amp to control the driver, you also lower the efficiency of the amp, so for ultimate SQ you would want to still as high as possible ohm load wise. But will you notice a difference most likely not do to the fact it will be louder and harder to hear the difference.

  6. New batts??

    in Electrical-battery- Alternators- Wiring

    Posted

    So my local stereo shop tells me I need all new batteries when using them together. For example, if I were running only one spare batt it would be ok that it was a used battery. However when doing multiple batteries they say you must use all new batteries so they don't draw down from one another?? I'm confused because as far as I know no two batteries are going to have the exact same voltage. So what is the difference if they are new as long as they all are good?

    IT IS TRUE. But don't worry about it. And I hate when people think it is possible for a battery to rest at 13.1v. Any battery that reads 13.1 volts obviously still has a float charge from being charged with an alternator. Highest open circuit voltage possible is 12.80 volts after sitting for 24 hours and usually 12.7+ indicates a full charge

    Couldn't be further from the truth, I have pics of my Batcap batteries, 2 different models that when shipped to me, I opened the boxes took them out and put a volt meter on them. It took 3 days for them to get to me so even if they were charged prior to shipping that is at least 72 hours with nothing on them. Resting voltage as following straight out of the box.

    Batcap 3000 - 12.97 volts

    Batcap 4000 - 12.95 volts

  13. audio que hdc312 break in

    in Subwoofers / Enclosures

    Posted

    IMO it is a design error that has been with AQ since the beginning, and is still a problem. But with adjustments to enclosure you can help save the woofer longer like you mentioned. All mine that had triple joint failures the glue held it was the paper on the former ripped at the joint causing a complete failure at that point.

  14. audio que hdc312 break in

    in Subwoofers / Enclosures

    Posted · Edited by AMI CUSTOMS

    I really don't see how a triple joint is any better after a break in then fresh out of the box. It's not like the glue has to dry over the next 2 weeks. Nor does the spider have some built in memory you have to train to retain its shape. Breaking the triple joint is more to do with the box it's in, not how it was built.

    Sub companies want you to break in a sub for one reason. Buffer from a customer doing something stupid out of the box. Plain and simple. When people buy a new sub, chances are they have never dealt with that product before. So the likeliness you actually know its limitations out of the box is slim to none. If a sub manufacture asks you to break in a sub, it's because they want you to learn the limits of the product over the course of time, not to drop it in a box and throw the hammer down on it.

    People need to learn their products in the system as a whole and what the limits are, not believe that the product will somehow magically get stronger if you be nice with it at the start. It's a sub, you don't need to take it out to dinner and a movie first. take it no tell motel and give it a good pounding. Just don't expect to stick it in the pole piece if it wasn't designed to take it ;)

    The suspension is super stiff, the triple joint it the weak point so it breaks there if to much excursion is going on, now if it is looser, the suspension there is more give at the triple joint.

  15. audio que hdc312 break in

    in Subwoofers / Enclosures

    Posted

    If a spider is going to rip, then it will rip regardless of how you play it before it rips. If a spider rips, or you tear a surround, or you bust a triple joint, or toast a tinsel lead, it is because YOU were doing something YOU weren't supposed to. OR something the sub wasn't designed to do.

    Subs are stupid. they do what you want them to. If you have them do something stupid, then bad results may follow.

    I am gonna have to disagree, in most cases you would be right but being the fact I have reconed about 2 dozen of the hdc3 two different versions in my own truck last season, you have to break the v3 version in or you will rip the triple joint. The new v4 hdc3 has a larger diameter spider so the break in process is greatly accelerated.

    Now having said that, I using free air mine on a 250w Memphis amp with test tones for a few hours and works like a champ. Last season if I put a fresh recone in my wall and tried to play music I would destroy them if I didn't have them loosened up. And one set of woofers I played at lower volume for 3 weeks before going full tilt with them or burping at lower ohm load. Didn't have any problems with them. I have dozens of other examples where we broke some in had good results and one where we didnt and had failures.

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