dual 15s

[RangerDangerV2 5,000+ posts]

Came expecting this:

Severely disappointed.

Single chamber makes them 'feel' as though they are in a bigger box than you really build. Lowers power handling, increases efficiency.

i know this, but when 2 15s are on 2 3500s strapped @ 1ohm... I need all of the power handling I can get.

 

[wickedwitt 10+ year member]

i know this, but when 2 15s are on 2 3500s strapped @ 1ohm... I need all of the power handling I can get.

The gain does turn counter-clockwise...

 

[RangerDangerV2 5,000+ posts]

The gain does turn counter-clockwise...

really?? didnt know that lol... but I need all of those 2 3500s.

 

[Anton Miller 10+ year member]

Yes really. Like I said, it will but its not going to have the same touch as a larger box. Its going to be more peaky also, normally higher in its range.

interesting... cause the enclosures ive built always have a flat response... within a db or so. the 2 15's ranger enclosure int he video does a 150-151 from 30 to 50 hz. my enclosure for 2 12s does a 149 to 150 from 30 - 45 hz

im not going to argue with you, as i have my experience as im sure you do as well. but im tellign your right now, your wrong. try it once //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif a nice small box with good port area tuned low will suprise you. i suppose i should say i only build for sundown woofers, so i guess this dc or atomoic or mmats stuff could be different, but doubt it..

 

[RangerDangerV2 5,000+ posts]

interesting... cause the enclosures ive built always have a flat response... within a db or so. the 2 15's ranger enclosure int he video does a 150-151 from 30 to 50 hz. my enclosure for 2 12s does a 149 to 150 from 30 - 45 hz
im not going to argue with you, as i have my experience as im sure you do as well. but im tellign your right now, your wrong. try it once //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif a nice small box with good port area tuned low will suprise you. i suppose i should say i only build for sundown woofers, so i guess this dc or atomoic or mmats stuff could be different, but doubt it..

35 low enough?? what was kyles tuned to??

 

[LosIsATool 5,000+ posts]

interesting... cause the enclosures ive built always have a flat response... within a db or so. the 2 15's ranger enclosure int he video does a 150-151 from 30 to 50 hz. my enclosure for 2 12s does a 149 to 150 from 30 - 45 hz
im not going to argue with you, as i have my experience as im sure you do as well. but im tellign your right now, your wrong. try it once //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif a nice small box with good port area tuned low will suprise you. i suppose i should say i only build for sundown woofers, so i guess this dc or atomoic or mmats stuff could be different, but doubt it..

I can tell you from my experiance. 3 cubes for what I have tuned at 35 did not have as much low end presence as they did with 3.5 cubes tuned at 35. it was there but you could tell the air flow was not the same. My peak was 38 at 3.5 and 49 at 3.

 

[Anton Miller 10+ year member]

35 low enough?? what was kyles tuned to??

kyles was a touch under 3 cubes tuned to 34

I can tell you from my experiance. 3 cubes for what I have tuned at 35 did not have as much low end presence as they did with 3.5 cubes tuned at 35. it was there but you could tell the air flow was not the same. My peak was 38 at 3.5 and 49 at 3.

different vehical different cabin gains, what your testing shuild have shown you was to increase port area, lengthen port to tune LOWER and make box at 3 cube. you would have had a much nicer response curve then.

also, your bandpass in the scion will be different from a truck, as it is a completely different wave development.

 

[Anton Miller 10+ year member]

I can tell you from my experiance. 3 cubes for what I have tuned at 35 did not have as much low end presence as they did with 3.5 cubes tuned at 35. it was there but you could tell the air flow was not the same. My peak was 38 at 3.5 and 49 at 3.

let me elaborate, your tuning was the same, so all you did was change box volume. by changing box volume you lost excursion in the woofer near tuning, in order to get that back you need to add port area to releive the back pressure from the rear wave, you will lose more control at higher notes up in the high 40s to 50s, but with 15's you dont have to worry much about that as they have the ability to unload on those notes pretty much as much as they want... so more port area to get more excursion near tuning and smaller box to fit the huge port, and lower tuning to bring your peak down (which in a daily application means nothing)

 

[LosIsATool 5,000+ posts]

kyles was a touch under 3 cubes tuned to 34


different vehical different cabin gains, what your testing shuild have shown you was to increase port area, lengthen port to tune LOWER and make box at 3 cube. you would have had a much nicer response curve then.

also, your bandpass in the scion will be different from a truck, as it is a completely different wave development.

That wasnt the bandpass. Just a normal slot port. Both had the same port are and **** near same placement. I'm going back to it this time with a bit lower tuning. Its loud enough for daily. But like you said, every sub will want what it wants. With him running a DD based sub i would imagine it would want a bit more.

 

[LosIsATool 5,000+ posts]

let me elaborate, your tuning was the same, so all you did was change box volume. by changing box volume you lost excursion in the woofer near tuning, in order to get that back you need to add port area to releive the back pressure from the rear wave, you will lose more control at higher notes up in the high 40s to 50s, but with 15's you dont have to worry much about that as they have the ability to unload on those notes pretty much as much as they want... so more port area to get more excursion near tuning and smaller box to fit the huge port, and lower tuning to bring your peak down (which in a daily application means nothing)

That makes perfect sence but both had 18sq per cube.

 

[RangerDangerV2 5,000+ posts]

That wasnt the bandpass. Just a normal slot port. Both had the same port are and **** near same placement. I'm going back to it this time with a bit lower tuning. Its loud enough for daily. But like you said, every sub will want what it wants. With him running a DD based sub i would imagine it would want a bit more.

as I have said before these are not the final designs, I have yet to build and test these woofers and once I have the t/s parameters and vas I will start the actual designs.

 

[SourDeez 10+ year member]

this will not make music for you to listen to

 

[Anton Miller 10+ year member]

That wasnt the bandpass. Just a normal slot port. Both had the same port are and **** near same placement. I'm going back to it this time with a bit lower tuning. Its loud enough for daily. But like you said, every sub will want what it wants. With him running a DD based sub i would imagine it would want a bit more.

if you put an enclosure inside a vehical (enclosure) it becomes a band pass //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[RangerDangerV2 5,000+ posts]

if you put an enclosure inside a vehical (enclosure) it becomes a band pass //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

a very poorly sealed one at that.

 

[LosIsATool 5,000+ posts]

if you put an enclosure inside a vehical (enclosure) it becomes a band pass //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Well I need to find a different enclosure cause mine is ****