Colin - STAPUFT
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Posts posted by Colin - STAPUFT
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Now that's the hot setup.
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Do the subs still pop when you remove the RCAs from the sub amp? If so, then it could be your RCAs. If they keep on popping, then maybe you have a poor power or ground connection somewhere.
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Very pretty labs. Big difference between those two and my yard labs.
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i can ususally detect major clipping with my ears. the head unit is alpine so i have a feeling no worries tehre.
ive setup many systems. and have only had this issue on this one.
so its tellin me either the amp is damaged and putting out dc voltage. causing heat buildup.
btw tried another speaker on it. and guess what. runs hot. no matter how i set it. amp runs super cool though
It is pretty hard to detect minor audible clipping on a sub. If you get into crazytown with the clippage, you can hear it, but even a small amount of clipped signal is still DC sent to the sub.
Might be bad signal from your head unit being sent to the amp or could be the amp even if you set the gains with a digital multimeter.
As has been said, you really need an o-scope to check to see if that amp is clipping.
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Yeah. Kinda' have a sick fondness for the old Astro. My granny gave it to me too. Still looks like a granny ride. No one would suspect the boomage.
I usually buy batteries with both side and top posts just for the extra places to stick wires. The Astro is the opposite of your truck- the factory positions use the side terminals. That left me the top terminals to run the Alt wire in and the amp wires out. The other was the battery to chassis to alternator ground hook up.
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You can do that. It is just 2 different ways to hook up to the same battery. On the inside, the top and side terminals go to the same place.
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From Alternator output to battery positive (fuse this wire a bit larger than your alternator)
From Alternator Ground (case of alternator or as close as you can get) to Chassis Ground (frame or unibody)
From Chassis Ground (frame or unibody) to Battery Ground
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I hate people who fight dogs.
That is more or less how we got all 3 of our pits sadly. Hubby the parking lot rescue had marks all over her face and she still has issues with dogs she doesn't know. I am sure she was fought, but let go or run off because she isn't that fast (on to Axle). Axle is "game bred" - we know that because the breeder of his litter was later arrested for fighting pits (we bought him from a 3rd party seller, we didn't know at the time)- but once Axle popped Hubby 3 times before she had time to think. Poor Booger's initial owners were sorry people and I had real suspicions what their intentions were.
Don't let me find out someone is fighting dogs because I will bust your head then report you. Damn I hate a dog fighter!
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WOOT!!! about time you started to post here.
what's up son!!!!!
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mattison187:
You have got to be kidding! That boy is huge!!! I have always had this dream of starting a breeding program between Pits, Mastiffs, maybe Great Danes and Greyhounds. Now I know what Pitt and Mastiff looks like. That is an awesome dog son.
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I have burned so much time looking at everyones dogs (and cats). You can tell everyone really loves their animals. And everyone has such pretty dogs. I figured I would share some of mine. We have 2 outside black labs and 3 inside Pits. The pits all sleep in the bed with me and the wife. Don't break in on us Son! I know it has been asked already but..... What is it with us audio guys and our pits?!?!?
Diesel (left) & Bonnie (right)
Diesel is half Chow and Half Lab and Bonnie is Lab and all stupid. We love her to death anyway.
Hubby (brindle tigerstripe) @2 years here
This is when we first got her (rescued her from a parking lot where she had been abandoned)
Axle (bridle tigerstripe) @5 years here
We got him in Westwego, LA. He is the first one- The golden child as it were.
And Booger (buckskin)
We rescued him from some sorry trash that left him for dead at a vet clinic and then skipped on the bill. The one where he is a puppy was taken 2 weeks after he nearly died. Good to know he is in a Pit friendly home now where he is treated the way he should be. He is daddy's boy for sure.
Hubby and Booger side by side. Not all pits are created equal... lol!
Thanks for letting me show off the kids as it were.
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A red nose with blue eyes!?!?!?!
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Holy crap that is sick fun!
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Ohh... beats me!
Check your manual and see what the subsonic range is and just guestimate it. Set the subsonic filter right at or just below the tuning of the box and go UP from there if you have troubles.
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Just watch the subsonics if you do the ported box. Once you go below the tuning frequency the subs have to rely on their own suspension to keep from making with the deadness on mechanical failure.
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But wouldn't the amount of subs determine the port area, coz there's more air moving.
It's all planning at this stage. So i'm just going through my options
You would have really high port velocity if you port that box either way. The smaller the port the lower the tune. The longer the port the lower the tune. I assume that the 1.85 cubes includes the port? So any port takes up air space along with the sub too. So to get that low tune you need either small port that is short (really high port velocity) or a large port (10-16 square inches per cubic foot of box) with a long length to get the lower tune. That is fine but you only have that 1.85 cubes to work with and the port would start to gobble up your space. So... you get back to the high port velocity again.
I have been putting numbers in Bass Box Pro and I just can't make it work with that tune. 3 10s with their displacment, plus a port that is only 12sq inches that is 18 inches long gives a remaining internal space of around 1.4 cubes (less than the recommended) and tunes to about 32-33 hz. That gives a really high vent velocity and poor low end output.
I just don't see it happening. But you could proove me wrong- that space is just killing you.
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Sweet guide! Makes that crap easy.
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Eh... yeah, 4 ohms does put out 900 watts. Which puts him within 100 watts of the RMS of all 4- only 25 watts off per sub.
I was thinking of if I were doing it... with impedance rise, PA being a bit happy with their power ratings sometimes, and afew other things.... I would overpower them a bit so he would always have that "headroom" in the amp. Help the music be a bit more dynamic and to keep it from underrunning the subs.
Either way- I would try the 4ohms at first. You never know, it might blow your head off and be all you want! If it is garbage, he could try it at 1ohm.
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You tune a port for the box, not for the subs. It wouldn't matter if you have 3 subs in that box or 1, the tune would be the same if the internal volume and port size & length were the same.....
So- I think you would be better off with all 3 sealed or just 1 ported. Just because you can stuff the speakers in there doesn't mean it will be louder or sound better.
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I would think the MTXs could handle it down at 1 ohm. I don't know about the new subs, but their old stuff was underrated and from what I have seen with most PA stuff, it is a bit overrated.
As long as he has clean power going to the amp and doesn't go crazy with the volume, bass knob, and keeps the rca signal clean (set the gain with a multi-meter), he shouldn't have too much issue.
Just my $.02
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I'm Colin and I found the site through all of Steve's videos on Youtube and Realm of Excursion.
I have had an addiction for over 12 years with this whole audio thing- and it seems that more is never enough. I would like to thank you other sick fools for feeding this problem I have.
Great site with lots of real car audio fans. Thanks.
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Yeah, if that is total cubes for all 3 then he might have to go with a dirty word *GASP* ....sealed.
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Very nice! You going to do any roof bracing while the interior is out? Or you gonna' leave it for the holy crap factor?
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Put My Dog Down Today
in Off Topic - Random, Misc posts - the forum "Junk Drawer"
Posted
So sorry to hear that man. I know how we love ours and you can tell she was loved. Sorry for your loss bro.