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Like the title asks; Is an Alpine PDX1.1000 powerfull enough to run an RL-S15. Anyone ever try this combo?

I have Diamond Audio M6 4.5 mids and M&K(Vifa built I think) soft dome tweets...sounds really smooth. My sub is a TC Sounds TC3k 15. Right now I'm using Diamond Audio M6 6.5 mids in the doors for midbass with the same crossover points I plan to use for the midbasses...they sound good but don't handle the power all that well. That's why I'm looking for more midbass oriented drivers.

I'm going to be buying (4) 6.5 inch midbass drivers and I'm looking at either the Kicker SS6.5s or the Mach5 Audio 6.5 midbass. They will be actively crossed at 60hz up @24db and 200hz down @12db. They will be getting 75watts rms each and run free-air in the stock door locations of my '04 Dodge Durango. Any thoughts...other suggestions. Either way I go it will only cost me about $150 and that's the range I would like to stay around.

Ahhh. Didn't see that thread.

Hello Mike. It is all over the TC Sounds/Audiopulse forum that TC is going under. Will this affect your business and if so what do you see SoundSplinters future being?

Audiopulse Epic 8s are VERY similar to the SS RL-Is. They are a bit pricey though. Go to the Audiopulse forum and look up a guy named Jake Ballard. He is a manager of a stereo shop that carries the full line of Audiopulse. To get to the forum go to tcsounds.com click on the Audiopusle icon and choose "support" from the Audiopulse main page.

Underhung designs (as I understand them) are coil/motor designs in which a shorter coil is utilized within a large magnetic gap accomanpied by an extended top plate. The idea is that the shorter coil stays within the motors magnetic feilds of flux throughout its entire positive and negative stroke. The result is a coil that is not only controlled by the physical restraints of the suspension but is also always controlled electromagnetically. This design is inherently linear. The advantages are obvious. The disadvantage is typically a shorter throw subwoofer. There are other disadvantages but I'm not familiar with them all. An overhung design typically employs a longer coil with varying size magnetic gaps in which a portion of the coil will move outside of the magnetic gap at the zenith of both the positive and negative stroke. The major disadvantage is the loss of magnetic control on the coil as it leaves the gap. The magnet can only maintain control on the windings of the coil that remain in the gap. Most subwoofer designs are overhung. However TC Sounds developed a variable density coil in which the coil windings are incrementally more dense towards each end of the coil so that as the coil-ends leave the gap the end that remains has more windings still within the magnetic gap. Sort of balancing the magnetic control of the coil. From what I have read it seems to be a very linear design. Of course these are all general statements about the motor geometries and there are all sorts of other design elements to be considered. But these are the theories as I know them. I'm sure there are plenty of forum members that could explain it better.

The Audiomobiles claimed an xmax of 25mm+/-. The Haxos say about 18mm. Is that due to the coil or motor? Both? I wonder what kind of results I will get.

It's a TC-9 motor so it is definitely reconable...but you won't be getting back anything close to a Mass with the switch to the overhung coil. What the new Xmax, Qts, Qes, Re, BL etc. would be depends on the coil they put in there. But you won't be getting a Mass back. The underhung designed subs ED is selling come from a company called Haxo. Their underhung motor is a 3inch design with a flat backplate. It appears to have the same magnet slug as the Audiomobile and the same top plate. I think I might get a little extra throw if they use their soft parts with my motors because my motors have a bumped back plate with more clearence.

This was the actual repley: How tall is the top plate? I'm not sure if we can do a under hung design or not, but i know we can re-cone those motors. Thanks! -Nick

99% sure they are more expensive than going through Fi, if that bothers you. I think going rate at eD is something like $100+shipping (depending on the parts) while the rate at Fi is something like $85 + shipping. And with Scott and co, you get someone who really knows how to engineer and build speakers. I did inquire online to Fi about a rebuild...though price was not discussed they said that they could rebuild off of the motors. However what I wasn't so keen on(and never really got a response about) was the fact that they would be rebuilt with overhung coils. I quess they don't have underhung coils for this motor. Where most motors/coils are built to work together wouldn't paying a little extra for a "properly" matched coil/motor be beneficial? I always LOVED the sound I got from my Audiomobiles and figured it was due to the linearity of the underhung design which is why I was so excited about getting these motors rebuilt. What effects would an overhung coil have if mated with an underhung motor design? Would I still retain the control underhung designs offer? Would I gain a little xmax where as the overhung coil will sit higher in the gap creating more distance from the backplate. Would the TSP be really wacky because of the two different syles merging? These were some questions I was wondering about going with an overhung coil/underhung motor. Any thoughts?

One thing I will say about "underground" speaker companies is their willingness to custom build. I sent Elemental Designs an email yesterday asking if they could rebuild me old Audiomobile Mass motors. They responded within 30mins! They told me they could build my new subs and at a very reasonable price. I smell a pair of underhung 15s in the near future! I don't think too many mainstream speaker companies would be willing to custom build subs with other manufacturers motors.

X2!

I used to work at a shop that carried JL products. I wasn't overly impressed with them. The W7 got loud but lacked the SQ I like. The W6 sounded great but didn't get all thet loud. The W3 line impressed me the most as it had a lower price point and got pretty loud and sounded good as well. However they all seemed a bit overpriced for what you got. Overall I think they are a good company and DO have quality products, I just feel for the money you can purchase better products that yeild all-around better results. By the way Elemental Designs has just released a new line of subwoofers including a couple underhung designs...I wonder if they can rebuild subs from my Audiomobile motors! I see there is a little hostility abound in this forum, the point of me posting this topic to begin with was for people to speak of their personal experieces and interject there opinions based on that. That being said I welcome all of the banter that has ensued, however we should try to be nice to eachother even if we don't agree. Anyways thank you for all of the responses, keep 'em coming!

3 cubes internal volume, add bracing and woofer displacement should get you right where you need to be...You should consult the guys at Fi, they will know best.