cone area and power adding spl question

[mazdaman626]

I've read that doubling cone area is good for around 5-6 db gain. And doubling power is good for around 3 db's. How does that work when doubling cone area and power?. is it true that a 7-9 db gain is possible?

Click to read more...

 

[mazdaman626]

Let me back up, I reread what I quoted and I stated my facts wrong... I read that doubling cone is a 3 db increase. And doubling power another 3 db increase. Is it really a 6 db increase doubling both? Is that likely or will it probably be a lower gain like 4-5 db for example?

 

[Lbetts818]

What amp,subs,car etc....2 15s in a proper box will crush 4 in a box that will choke them. Just asking before someone else. Details and I'm sure someone will be able to chime in

 

[Boomin_tahoe 5,000+ posts]

Mazdaman, where did you read that from?

 

[Chris McNeeley]

If any of that was true we would all be a lot louder. #fakenews

 

[mazdaman626]

Mazdaman, where did you read that from?

BoominTahoe,This is why I'm asking the question and why I stated two different things. I'm seeking some clear advice.

SPL: Increasing Power vs Adding More Woofers - List Thread

 

[mazdaman626]

What amp,subs,car etc....2 15s in a proper box will crush 4 in a box that will choke them. Just asking before someone else. Details and I'm sure someone will be able to chime in

2 12"P3's in a 3.5 cubic foot box tuned to 35hz, I have them in a 626 mazda and I'm considering going 4th order with 4 and doubling the power from a kicker zx?1000 2 ohm amp to 2000 watts sundown power at 1 ohm. I read someone say in that article I linked that big gain is possible, any ideas what to expect?

 

[Slo_Ride 5,000+ posts]

Where are you putting four 12s in a fourth order in a 626?

 

[THATpurpleKUSH 5,000+ posts]

The 3db gains are only in a perfect listening environment. A perfect listening environment in car audio is a unicorn. YDBMV.

 

[mazdaman626]

Where are you putting four 12s in a fourth order in a 626?

I got over +11 feet external to play with, its a 1986 626. 16"x38" 32". maybe 9 feet internally once I crunch some numbers. Rear seats fold down, it's a work car.

If I have to lose some rear seat area it wont bother me. I'm hoping to squeeze a 2:1 basic 4th in there. I dunno, I'm still looking at other options. Maybe 2 15"? if I go with 15's I can port a pretty good sized box without any trouble. I was hoping to use these 12's though. I'm not going to get anything like I want for them if I sell them. Only P3's ya know?

 

[Lbetts818]

for the cost of the sundown look at soundqubed or other Black Friday ads. The sq 2200.1 $349?$369? Somewhere in there right now. Wolfram just released a 3k for 500$ just don't pay for a name just because. and what are your goals? I'm assuming loud as possible? The p3s are like a moped. Sure you'll get there but I'd look for some used or yardsale sa 12s or 15s depending on budget and what not.

 

[Darth_Immitis]

for the cost of the sundown look at soundqubed or other Black Friday ads. The sq 2200.1 $349?$369? Somewhere in there right now. Wolfram just released a 3k for 500$ just don't pay for a name just because. and what are your goals? I'm assuming loud as possible? The p3s are like a moped. Sure you'll get there but I'd look for some used or yardsale sa 12s or 15s depending on budget and what not.

That sq 2200 is mighty tempting

 

[Darth_Immitis]

I got over +11 feet external to play with, its a 1986 626. 16"x38" 32". maybe 9 feet internally once I crunch some numbers. Rear seats fold down, it's a work car.If I have to lose some rear seat area it wont bother me. I'm hoping to squeeze a 2:1 basic 4th in there. I dunno, I'm still looking at other options. Maybe 2 15"? if I go with 15's I can port a pretty good sized box without any trouble. I was hoping to use these 12's though. I'm not going to get anything like I want for them if I sell them. Only P3's ya know?

I pre ordered one of these bad boys! If I like it I’ll grab another and that Wolfram 3k!

https://www.wolframaudio.com/collections/silver-1-250-rms/products/ag-15?variant=34541252803

 

[BOOMINGRANDPA 5,000+ posts]

I got over +11 feet external to play with, its a 1986 626. 16"x38" 32". maybe 9 feet internally once I crunch some numbers. Rear seats fold down, it's a work car.If I have to lose some rear seat area it wont bother me. I'm hoping to squeeze a 2:1 basic 4th in there. I dunno, I'm still looking at other options. Maybe 2 15"? if I go with 15's I can port a pretty good sized box without any trouble. I was hoping to use these 12's though. I'm not going to get anything like I want for them if I sell them. Only P3's ya know?

sell those get 2 better 12's or 15's with bigger amp than u have now., that way u still just buying 2 subs but u can sell stuff u have to recoup some $ and maybe put that into big 3 wires or whatever.. like louie said whole lot of sales right now u can get hdc3 12 $245, fu 750 12's are $159, fu 1250 15's are $269 try those (that's what louie and a friend has, nice cones on those) lots of options besides rf and sundown u can get synergy 2k or ts 1.8k for $399 or orion xtr 1500 is $339 i think., it tested at about 2200rms..

 

[mazdaman626]

Pair of 15's powered right is the best option I'm sure. I like the look of those wolframs. maybe a couple of SA 15's on 2kish?