i've seen a couple of posts about sq subs and some people recommend the atlas, and others reccomend the idq i was just wondering which would have better sq, i have the aa atlas and to me it blows everything i have ever heared out of the water in sq but i never heard the idq so i don't know which would have better sq.
Brahma MkII, Koda, XXX, Avalanche, Atlas. They are all somewhat similar in sound, kind of dry and airy, some consider it as sounding hollow. That part isn't my gripe, really, that's pretty typical of flat BL drivers due to the low distortion. My gripe is that all of them suck above 60hz, doesn't matter what size they are. XBL^2 isn't the reason for that part of it, the heavy paper cones are what you can contribute that to. No point in focusing on a low inductance design if the driver is muddy above 60hz IMO.
"Jonathan how whould you compare the IDQ 15 to the JL 15w3v2 ? Which one do you suggest and what amp to power them ? I am deciding between them.
Its going in a SUV so should i go 1 15 or 2 ? Im thinking about going sealed."
All around I'd go with the IDQ, especially sealed. Only needs around a 1.5 cu ft (gross ) sealed box for the 15". One would be enough for most people, but it's not like you can't attenuate them if you get two. Something like a Kicker KX600.1 for one of them, or a KX1200.1 for two.
Let me know soon jonathan. Im really looking forward to this setup. I have 2 jl 12w6v2's sealed now but ive always wanted to try the IDQ's. I listen to mostly hiphop and somtimes dance and rock. I guess going with a 15 over the 12 IDQ whould be the way to go for more output and bass. How is the SQ on the 15 ?
Im using CDT HD62's with the upgraded crossover and tw24 tweeter. They sound very natural and smooth with good amount of midbass at 150 watts rms from my ppi a600.2 / Not sure if i wanna go with 1 15 or 2 of these ?
So 1.55 cu ft per sub and is that all in one box or coupled chamber. polyfill ?
What about the ID MAX 12 off the CrossFire VR1000D ? Do you think that whould sound better and be louder ? I know you had mentioned it being good sealed and ported. What type of box whould be better for a SUV ?
1 CrossFire VR1000D enough to power 2 ID MAX 12's ?
"What about the ID MAX 12 off the CrossFire VR1000D ? Do you think that whould sound better and be louder ? I know you had mentioned it being good sealed and ported. What type of box whould be better for a SUV ?
1 CrossFire VR1000D enough to power 2 ID MAX 12's ?"
In that case I'd go with the ID Max 12s. They're very efficient, and that amp would be just fine with them. Really, I wouldn't put more than 700-800W on an ID Max in most applications. They'll move well with 500W each.
As far as boxes, I'd port them, 2.5 net tuned to 25hz. It will get LOW and sound excellent.
"is there anything you can do to get the atlas not to sound so muddy when playing kick bass." Not really. Get some strong midbass drivers up front cross the sub over lower. That's your best option, and your imaging will be better because of it.
about what hz should i cross over, cause when i had it hooked up it was crossed over around 75hz, so i was thinking some where around 55-60hz or should i go lower.
"I have 2 12w6v2's right now sealed prowedge. Will this be a good upgrade from that ? SQ wise and SPL wise ?"
If you port the ID Maxes, you'd get more output and more low end than the sealed W6v2s would offer you. The ID Max isn't going to blow it out of the water in SQ, but it's a little better IMO. It's hard to clearly beat a W6v2 for SQ, the W6v2 is one of my favorite SQ subs too .
) sealed box for the 15". One would be enough for most people, but it's not like you can't attenuate them if you get two. Something like a Kicker KX600.1 for one of them, or a KX1200.1 for two.