haemphyst's new system

I like three, not that my opinion should be respected, but because I don't have a car to work on and I am living life through you.

Alright kiddies... I've decided. The numbers in WinISD made me decide on the VERY do-able, and seemingly UNBELIEVEABLY respectable, isobarik vented option... Yes, option 3! Specs: 2 TC-1000 10 inch drivers, isobarik, face to face 1.2 cubic feet tuned to 25Hz (I know... huh? LOL) Slot vent, 1 inch wide, 15 inches tall (these dimensions MIGHT change, but 15 square inches, nonetheless) 50 inch port length Subsonic filter, implemented @ 22 to 24Hz, @ 48dB slope 1000WRMS input power, or 500WRMS per driver, series parallel wired for 4 ohm load. Here's the plot... 20Hz - 102dB @ 19ms 25Hz - 110dB @ 43ms 30Hz - 110dB @ 19ms 35Hz - 109dB @ 7.6ms 40Hz - 108dB @ 4.8ms 45Hz - 108dB @ 3.5ms 50Hz - 108dB @ 2.9ms 55Hz - 108dB @ 2.4ms I love that 2-3dB peak between 20 and 30Hz, because I can EQ that OUT... Yeah, the group delay leaves a LITTLE bit to be desired, but in the car, at those frequencies... It's not gonna matter, I think. Also it's easier to start with box/cabin GAIN, and remove it, than it is to EQ it back in if it's missing... I'll still end up with an overall system SPL of 108dB... FLAT to 20Hz!!!! (actually, I'm thinking 111 to 114 "in car" output SPL) From a single 10" woofer! I'm thinking that for a single 10, this system'll knock yer socks off! I think I'm gonna be happy, FINALLY!!! Let me know what you guys think! PLEASE!!! Sarcomax, I respect everybody's opinion... I often live vicariously! 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."

Very nice Dave.  I've built ISO systems many times and they can be quite satisfying, especially in a car.  You may need to experiment a bit with end geometry since those TC Sounds woofers have fairly large magnet structures.   "Flat to 20Hz" may or may not be the case after you get it mounted, as the theoretical curve from Win ISD will change drastically what with cabin gain etc. but I'm sure it'll be nothing your devastatingly effective EQs can't handle.  Or you could always use a Linkwitz Transform to flatten your bottom end....  :)Support the12volt.com

I know, but in the car, I don't think there's going to be any LOSS... if anything, it'll be 1 to 2dB hotter at 20Hz, so, again, I can EQ it out. I know... those woofers are AMAZINGLY large drivers! But I do have (as of right now) plenty of space for them both. I'm sure my "devastatingly effective" EQs will do a fine job... Pretty sure, anyway, with all of their processing capabilities, I'll be able to make do! I am so close now, I can almost TASTE it! I'm just hoping for LINEAR... Oh, and DEEP... hu,hu.. he said "deep"... Anybody wanna buy an amplifier!?! Bob, I'll have more fundage coming your way tomorrow! Payday, YEA!!!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."

I mean just build a particle board test box.  If you like the sound in that setup, then you know you'll love it in MDF!...typically, I just run whatever I randomly pick up off the floor.

1995 Ford Ranger Supercab

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Team CSS

Fundage, boy do I like fundage. LOLThere is no such thing as free installation!

Well the birth certificate says 1176watts RMS for the 1.1000, 152wpc RMS for one of the 4.150s, (which will be the one bridged to the Adire 6.8's for about 330wpc, dynamic power, of course) and 176wpc RMS for the other 4.150. Nice... As far as "over time"? I could probably come up with SOME method of measuring... I'll see what's up with that! I do have some very high hopes for the iso loading of those woofers. I am actually drawing the rack/enclosure right now! MIGHT just fit! LOLIt 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."