rasic Posted August 17, 2011 Report Share Posted August 17, 2011 Can i have a list of speakers that yall know that have the high roll surround? I heard it gives more cone area and also sounds great plus looks sexy lol Quote system: changes way to much... Link to comment Share on other sites More sharing options...
STEvil Posted August 17, 2011 Report Share Posted August 17, 2011 high roll only gives you more if its also not wide. wide rolls take up cone area. Unfortunately high rolls also tend to be wide. Quote MickyMcD - "Capable of making some serious trouser flapping volumes at where's-my-testicles frequencies, the Servo-Drives used to be fairly jaw dropping..." Any time you have have a power wire next to your frame put some rubber hosing (or cut up an innertube) around it. The wire is bound to wiggle (due to driving or flex) and the casing will eventually wear through. Hammerdown... 1% no links to outside websites, business related FB/YT pages allowed. Link to comment Share on other sites More sharing options...
rasic Posted August 17, 2011 Author Report Share Posted August 17, 2011 Hmm, i like the way it looks, someone want to link some subs Quote system: changes way to much... Link to comment Share on other sites More sharing options...
727Designs Posted August 17, 2011 Report Share Posted August 17, 2011 Obsidian's have a pretty sweet looking high roll surround. Quote -Zach-2010 Toyota TundraFull Hybrid Audio SQ 7" BDS on 37's 2000 Ford Expedition 160+ dB Green Turd -SOLD- Link to comment Share on other sites More sharing options...
6berry Posted August 17, 2011 Report Share Posted August 17, 2011 i just installed some rockford fosgate p3's and they had high roll surrounds Quote 1999 Audi A4 1.8T::: 4 - DC Level 3 10's in a 4th order Rockford P6002 on Subs for now (3-3.5k coming eventually) MB Quart ONX4.60 for Mids and Highs Boston S50 Components in Front Boston S65 Coaxials in Rear 40 Sq Ft of Second Skin Damplifier Build Thread UBL 1948 Plymouth Link to comment Share on other sites More sharing options...
rasic Posted August 18, 2011 Author Report Share Posted August 18, 2011 i know the lms ultra has one too, idk its just a very cool look and i heard sounds greattttt Quote system: changes way to much... Link to comment Share on other sites More sharing options...
jmilch Posted August 18, 2011 Report Share Posted August 18, 2011 i know the lms ultra has one too, idk its just a very cool look and i heard sounds greattttt It really isnt the bees knees. Sometimes it makes a difference, but other subs perform better without a high roll. Just sayin' Quote Pioneer AVH-P4300DVD | Hertz 6.5 | Alpine Type R 6x9 | Custom 200A Alt | Knu Flek 1/0 Big 3 and all wiring | Eclipse EA3422 | AudioQue 2200d | DC XL 12 | Red Oak Box ~2.8 cubes @ 30 hz | Link to comment Share on other sites More sharing options...
tonedeaf Posted August 18, 2011 Report Share Posted August 18, 2011 Some of the jls have high roll, and I think some of the ai? Not too sure on it effecting sound. I would think the soft parts effect that more than a high roll surround. Quote Link to comment Share on other sites More sharing options...
Electrodynamic Posted August 18, 2011 Report Share Posted August 18, 2011 (edited) As STEvil pointed out, high roll surrounds can offer a smidge more surface area than a conventional surround if the total width of the surround is smaller than that of the surround it is being compared to. As far as a high roll surround effecting the sound; all surrounds impact the way the driver sounds. Narrow surrounds do shape the Cms curve differently than a perfect half roll surround. Most surrounds, however, are not a perfect half circle as they are renditions of a semi-circle usually found with some straightened edges towards either the basket landing or cone landing. Getting back to tall roll surrounds now; Yes they will have an impact on the sound of the driver. You must look at the material the surround is and how thick it is to get a rough notion of how it will impact the sonic performance of the driver. For instance, the old TC Sounds tall rubber surround is VERY thick and made from a pretty low compliance rubber compound. Because of the latter the surround acts as a lot of the mechanical restoring force of the driver. I think they may have changed their toolings or compounds for their current drivers, but the old surrounds used on the TC Sounds OEM drivers were so stiff that soft spiders were used to reach the target Cms (and in turn, Vas). The shape of the surround and spider together are what ultimately shape the compliance curve. The surround used on our Obsidian drivers is very tall on the 15" (and will be the same on the 18" version), made out of an adequately compliant rubber that's not too stiff or too soft, and together with the Nomex spiders shapes the Cms curve appropriately for the end user by aiding the spiders' mechanical "brake" towards the end of usable excursion. PS: I just noticed that I don't have good angled pictures of the drivers on Obsidian's web page so here is a good video that shows the surround on our 15": Edited August 18, 2011 by Electrodynamic Quote Electrodynamic Power handling is not a power requirement! Don't install suckage! Simon Eichenberger is the man. My PM's are disabled. Link to comment Share on other sites More sharing options...
rasic Posted August 18, 2011 Author Report Share Posted August 18, 2011 Your awesome! Quote system: changes way to much... Link to comment Share on other sites More sharing options...
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