The do's and dont''s of my first wall....it seems like something isn't right....

[ferguson621]

No they were far from being hot.....they were a soft warm if that makes sense lmao, i guess they weren't that warm....i didn't smell the coils at all, I'm just nervous to try and push them further since i finally got just about all of it done

 

[hispls 5,000+ posts]

Ok gotcha, I have a question....could I get away with just adding pieces like in your picture even though my port is square? Or will I have to just make a square insert?

Yes for testing, but that'll leave rough edges so you will want a plan to smooth things off once you're happy with the frequency.

What should my port area per foot be? I took out the port and they're not nearly as loud......they hardly play any. Notes......I'm going to try for 250-280 for port area

Port should be as big as you can make it. If your output "lost" it may just be a function of tuning so you'd need to add some length to the port. This is why it is vital to meter or at least play some tones with a notebook and just guess which frequencies are loud and where it starts to drop off sharp on the low end.

Alright here's an update......a good one! lol.....I went with 252 square inches of port area and 11 square inches of port area per foot and they're alot louder than when I had the port at 180 square inches. I have another question....obviously with this many watts ( i know it's nothing compared to some of you) but is there anything I can do to make them not get warm as quick? Should I turn my gain down a little? I want to be able to play them continuously for about an hour or two without having to worry about the coils getting to hot.

Those are realistically 1200W continuous power handling coils and you have an 8K amp. At full power you may not be able to play more than 1 bass heavy song before getting into trouble. Warm is fine/normal, hot and smelly means you had better turn it down quick.

I'm just nervous to try and push them further since i finally got just about all of it done

Good. Go easy as you test and until you really test out the limits of things. I don't think you want to blow up any more gear, you got extremely lucky how cheap you got off with the broken amp.

 

[ferguson621]

Im going to turn the gain diwn a little....i was playing a bass heavy song and they started to smell a little after about 25 seconds of the song, and I recalculated the port and I was off by alot. It's tuned to 45-ish hz....I thought it was at 35-36.....the song I was testing was dark horse, I don't remember what it plays at....I think it was like 28,32,45....roughly. So would being tuned as high as I am at the moment, would playing in that range cause them to get hot quicker? And yes i got extremely lucky with my amp....i still cant believe he fixed it for free.

 

[ferguson621]

Alright so i changed the port again, with very good results!.....to my ears they sound louder and i can feel the higher notes more....and my back doors look like jello lol. I'm going to try and get it metered within the next few days...i want to go to gp audio since he's like 30 minutes from me...but I'm nervous to drive my car that far because of the shi tty luck I've had with it....but i might say f uck it and try and go their today.

 

[ferguson621]

I feel like they should be considerably louder though, especially since my car is smaller than a full sized suv.....cause a friend of mine used to have two 15" l7's on two zx2500.1's doing 150 on music and that was about 10 years ago....in a ported box in a 2000 suburban, and only two or three batteries....there's a car audio shop about 15 minutes from me that has a meter but i think they charge like $20 to meter unless they think your stereo is worthy of being metered...im gonna stop by and see if they'll let me meter for free so i can finally get an idea of where I'm at

 

[ChaseinBass]

Well what's the numbers ?

Sent from my iPhone using Tapatalk

 

[ferguson621]

I haven't went yet

 

[hispls 5,000+ posts]

he's like 30 minutes from me...but I'm nervous to drive my car that far

That's my drive to buy groceries.

You still haven't properly sealed off the front yet have you? Is the box itself at least sealed up? GP seems to be a genuine enthusiast, I expect he can give you some pointers on where to gain.

 

[ferguson621]

I have not hispls....I'm actually working on sealing it up right now.....there's a couple very tiny cracks that i found yesterday on the box that i need to seal up. Nothing major though. I havent been able to check for flexing though because i was doing some testing a few days ago when i was switching ports and the neighbors like 6 blocks behind me called the cops and complained about how loud my stereo was and the cops showed up at my door about 10 minutes after i had gotten home and told me i cant play my stereo till i get out of town lmao. I'll have to go to my friends who live out in the country to do some real testing. Hopefully here in a little bit actually.....and excellent idea hispls! I didn't think about that lmao

 

[ferguson621]

Lol im nervous because ive had bad luck with this da mn pacifica. But i should be fine....ive taken it on the highway a few times already and it's done good every time.

 

[ferguson621]

How good would floor underlayment particle board work with enough glue and screws, atleast two layers thick minimum.....i asked because i just got about 40 sheets that are 30x60 for free

 

[hispls 5,000+ posts]

How good would floor underlayment particle board work with enough glue and screws, atleast two layers thick minimum.....i asked because i just got about 40 sheets that are 30x60 for free

I've had good luck with OSB and know a guy who does big numbers that uses it. I've also heard from a reliable source that particle board is good but ONLY if you coat it with resin. Really if it's airtight and rigid it's fine, the downsides are weight and a lot of that other stuff is a ***** to work with, but if you're just trying to fill in some of your small gaps either should do fine if you remember rigid and perfectly airtight.

 

[ferguson621]

Gotcha, yeah it feels just as heavy as mdf. I figured it'd help if I used a few extra screws than normal lol. I'm kind of having second thoughts on this wall though. I'm wanting to sell the meso's and buy one 15" that can take 6k rms. And put it in a huge box with a huge port. Do you think I could get louder with the one 15" on 6k than these three 18's on 7k?

 

[hispls 5,000+ posts]

Do you think I could get louder with the one 15" on 6k than these three 18's on 7k?

No, and I don't believe for a minute you'll find anybody that will honor a warranty on a single sub you try to run on that Taramps 8K. Somebody is making 6" coil subs these days that might handle that kind of power but I don't think they're 15" and I'm certain they'd be very inefficient with so much mass in the coil.

Why not go meet up with GP and get metered and see if he can give you some input on things to improve?

 

[ferguson621]

Yeah i guess i could do that......i had high hopes for these mesos.....they definitely hype there shi t up on there website for the descriptions....i think they're the worst lmao....i expected them to get down harder than what they do. One of them sounds like plastic is slapping....i havent even looked at them really