w6 or 2 type r’s
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=112834
Printed Date: April 25, 2024 at 6:05 AM
Topic: w6 or 2 type r’s
Posted By: whitemike0110
Subject: w6 or 2 type r’s
Date Posted: April 01, 2009 at 12:31 AM
What would sound better in your opinion. Two 10 type r's or one 10 w6. what would be better SQ and what would be high SPL. Thanks guys
Replies:
Posted By: jvillefinest
Date Posted: April 01, 2009 at 10:58 AM
The alpines would easily win in SPL and depending on the enclosure i would have to say the w6 would out perform the R in SQ. ------------- 2007 Acura TSX
SQ setup in the works
Posted By: haemphyst
Date Posted: April 01, 2009 at 11:11 AM
The JL is much more geared to the SQ side. The Alpines will be louder.
Those are both decent drivers, and they'll probably perform similarly, provided they are in proper enclosures.
-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: mannie77
Date Posted: April 02, 2009 at 6:36 PM
2 type r's will give u way more spl just because u have 20 in of air movement rather then just 10 but me i prefer jl i think 2 w6 will kick nice SQ and SPL
-------------
mannie
Posted By: aznboi3644
Date Posted: April 03, 2009 at 11:33 AM
mannie77 wrote:
2 type r's will give u way more spl just because u have 20 in of air movement rather then just 10 but me i prefer jl i think 2 w6 will kick nice SQ and SPL
WRONG...two 10 inch subs is not 20 in of speaker.
AREA is TWO dimensional...not one. ------------- Custom Enclosure Design
Posted By: mannie77
Date Posted: April 04, 2009 at 1:13 PM
when speking air movment 2 10s will move double the amount of air then just 1 10.... meaning higher spl yet jl has better sq then the typ r's
-------------
mannie
Posted By: haemphyst
Date Posted: April 04, 2009 at 6:59 PM
mannie77 wrote:
when speking air movment 2 10s will move double the amount of air then just 1 10.... meaning higher spl yet jl has better sq then the typ r's
Dude... That is SO wrong. AREA does not equal diameter!
I'm not in any mood to explain it to you, suffice to say, you are wrong. End of story. You do the math, treating both as AREA, and you'll maybe learn yourself where you ahve made the wrong assumption. ------------- It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: whiterob
Date Posted: April 05, 2009 at 9:07 AM
mannie77 wrote:
when speking air movment 2 10s will move double the amount of air then just 1 10.... meaning higher spl yet jl has better sq then the typ r's
When you double the cone area you gain 3 decibels ideally. In the real world that would translate to maybe a 1-2 decibel gain by doubling the cone area. 1-2 decibels is not a big difference in terms of percieved loudness.
There are other factors such as the efficiency of the speaker, enclosure, and power that will make a big difference as well in the overall loudness. Combined these factors will have a greater effect toward the overall SPL of your system.
Posted By: mannie77
Date Posted: April 07, 2009 at 11:50 PM
yes yes that all true so is the type of the car and ur tuning fq to the box and ported or sealed but im not getin all tech just sayin the u get more air movement with 2 rather then one wether or not its exactly 2 times more probly not...
-------------
mannie
Posted By: aznboi3644
Date Posted: April 09, 2009 at 9:46 PM
mannie77 wrote:
yes yes that all true so is the type of the car and ur tuning fq to the box and ported or sealed but im not getin all tech just sayin the u get more air movement with 2 rather then one wether or not its exactly 2 times more probly not...
Well stating that two speakers will have more displacement than one speaker is nothing new to anyone who can add one and one. ------------- Custom Enclosure Design
Posted By: bwhvac065@aol.c
Date Posted: April 11, 2009 at 12:37 AM
ok i have a question since everyone seems to be having a good day.LOL i have six punch p2s 12s how would you measure the cone area?
-------------
Blazerspl
6 rockford 12s
5500 watt pa amp
12.0 cubic enclosure
BIG 3
Posted By: whiterob
Date Posted: April 11, 2009 at 12:43 AM
bwhvac065@aol.c wrote:
ok i have a question since everyone seems to be having a good day.LOL i have six punch p2s 12s how would you measure the cone area?
Look at the specs of your sub and look for a value that is called "Sd". That is the effective cone area of your sub. Then just multiply that number by 6 and you have the total cone area of your subs.
Otherwise you can just do the area of a circle (A = pi * radius^2) to give you a basic idea. It won't be perfect but it will be close enough.
Posted By: bwhvac065@aol.c
Date Posted: April 11, 2009 at 12:47 AM
ok thanks. On the equasion above pi is 3.14?
-------------
Blazerspl
6 rockford 12s
5500 watt pa amp
12.0 cubic enclosure
BIG 3
Posted By: bwhvac065@aol.c
Date Posted: April 11, 2009 at 12:48 AM
if not can you possibly do a demo of the correct equasion? either way thanks for your time ------------- Blazerspl
6 rockford 12s
5500 watt pa amp
12.0 cubic enclosure
BIG 3
Posted By: haemphyst
Date Posted: April 11, 2009 at 1:02 AM
diameter of the driver / 2 = r
(I measure from the center of the surround roll to the opposite center)
EX: a 15" driver, will measure about 13" across, so 13 / 2 = 6.5
3.141592 * (6.5 ^2) = Sd
3.141592 * 42.25 = Sd
3.141592 * 42.25 = 132.73 in^2
132.73 * 6 = 796.4 in^2 of total surface area, for six 15's.
An easier way, though, would be to use the manufacturer's specified Sd, and multiply by the number of drivers you want to use.
-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: whiterob
Date Posted: April 11, 2009 at 1:03 AM
bwhvac065@aol.c wrote:
if not can you possibly do a demo of the correct equasion? either way thanks for your time
Yes, pi = 3.1415. Radius^2 means the radius squared.
An example would be...
A = 3.1415 x 5.5^2 = 95 square inches of cone area.
95 x 6 subs = 570 square inches of total cone area.
The 5.5 value refers to a 5.5 inch radius. The cone are will not include the entire sub so I just made up a value that I figured would be close to the radius you would use for a 12" sub.
Posted By: bwhvac065@aol.c
Date Posted: April 11, 2009 at 1:05 AM
damn that is alot of math i think i will go with the SD. Thanks a million fellas
-------------
Blazerspl
6 rockford 12s
5500 watt pa amp
12.0 cubic enclosure
BIG 3
|