OK bass gurus
found my old thread.
so im debating what to do next with my ssx 18,
so pick 1
1 take the extra time and strain to make that t-line expanded horn shown in post 7
2 make the t-line box displayed in the first post,
3 make a new regular ported box 6.5-7 cubes at 32 hz and a lot of port area
u will fail if u try to run an ssx in 6.5 - 7 cubes. trust me
oh so i'm at its best airspace with my 5 cube box??
what you think of t-lines?
5 cube is perfect for that sub. never tried a t-line on anything. i just know u will be great having a 5 cube box with like 60sq in of port.
how is it playing? are u not happy with it?
I think they're great, but I wouldn't use one if output was a huge concern...what you think of t-lines?
what up forum
I dont know how to design them, but T-lines sound really cool. I had one in my Xterra with a DD 3515 and an IA 20.1 and it got loud and low with a unique sound.
2007 Honda Pilot 2008 Nissan Maxima
2 RD D9s strapped @ 1 ohm Sundown SAZ-1500D V.3
2 Sundown Nightshade V.2s 2 10" Atomic APX
Sundown SAX-125.2 x 2 Sundown SAX-100.4
Sundown NeoPro 6.5"s, JL ZR Tweets Sundown NeoPros
RIP Taylor aka NewAgeKing, you are missed!
The sub in my car is in a transmission line and it handles 1200rms better than it did in a smaller ported enclosure and definitely better than it did sealed. The sub has far more control from 18-28hz and won't bottom out around 40hz like it would in the sealed and ported boxes. The only place where the ported enclosure was better was around 30hz where it was tuned.
Id like to see someone sit down with a TL , a normal ported box and than a T-line or another type of enclosure and meter from 20-60hz with both/all of them for something conclusive
And than id like to try one myself
Looks good man
The sub had the best transient response in the tline and it was very similar to the sealed but just seemed tighter sounding. Power handling was the worst with the sealed box as it could bottom out at 40hz with a little over 500rms (sub is rated at 500rms). The ported enclosure would bottom out below 25hz with over 500rms and but could take 1200rms at and around tuning. The transmission line can bottom out below 15hz with over 500rms but was fine in the passband with about 1200rms but coming very close to mechanical limits around 30hz.
An interesting note is that the tline had the most change in frequency response with different window positions and vehicle speeds. Car speed and window positions didn't affect the other enclosures much at all. With the car totally sealed up, the tline loses the 4dB peak and the passband becomes very flat. With both windows half way down, the -3dB point moves up closer to 22hz and when they're all the way down, it's about 24hz. When the windows go all the way down, there is also a peak that spikes around 35hz and the peak increases when I'm going about 25-40mph. I've never measured it since I would have to do it while driving and I'm not that curious about it. I do know I can hear a difference and I never could with with the other enclosures.