Recent content by basshz

It is still available.

GVWR is your gross vehicle weight rating. This is roughly the total weight of your vehicle unloaded. Whether it takes into account fuel or not is hard to say. GAWR is gross axle weight rating. This is the rating of weight each axle can sustain. FRT is front and RR is rear. Again it's hard...

Double check your weight ratings for your truck. The rating should list three sets. One set of weight ratings for the cab loaded, another set for the bed loaded, and another for towing. My truck lists these weights on the drivers side door label. Another thing to consider is how old your...

Item(s) for Sale: Crescendo Symphony S800/4 Item(s) Description/Condition: 4 Channel Class D Amplifier 4ohm@14.4v - 130Wx4 2ohm@14.4v - 210Wx4 Bridged 4ohm@14.4v - 400Wx2 Low/Hi RCA Input Switch - 300mV to 10V 9V - 16V operation Crossover - Off-HP-LP/BP x1/x10 Crossover Range 50-500Hz...

I really do love how t-lines sound...even more over my bp6. My t-line for my six 8's was insane for what it was. For the 12's I'm using now, just like the OP, they model better in bp6 than a t-line. Though I do have two t-line models (massive enclosure size) that are just waiting to be built...

It's going to be tough (not impossible, just really hard) to cut your box size and still trying to gain output. Hoffmans Iron Law...there's no way around it. When I built my proof of concept PR system it was a quick throw together kind of box. There may be software out there that can model PR...

I'm assuming your modeled 6th order is a parallel bp6 which is why you are considering using passive radiators. It would be easier to model a series-tuned bp6 for all four of your 8's in a standard configuration (non-iso). Since you are intent on using iso and thinking about passive radiators...

I would say this is the reason. T-lines have high efficiency (require less power) and wide bandwidth (usually). Overall you're getting more bandwidth and output over a traditional ported enclosure. If you've had a ported enclosure before and you got a well designed/built t-line the...

I have personally used the sundown sd-2 8's extensively...8 of them at one time at one point. OP for the application you described the sd-2 8 with 500watts rms and .4 cubic feet will fulfill your needs. The sd-2 8 subwoofers are grossly underestimated at how they perform in sealed enclosures...

Sundown sd-2 8. I had six of these in a quasi-6th order enclosure and it got loud and low. For the application you described these fit the bill. The sd-3 line has been released but no mention of the 8's from sundown in the sd-3 line. The difference between the sd-2 and sd-3 8 is the surround...

The IA10.1 amps are stout to say the least. I have had one of them wired to a 0.5 ohm load to 4 sd-2 8s. Not a single problem. I had two IA10.1s "mirrored" to 6 sd-2 8s (each amp saw 1.33 ohms) without a single problem. Granted I had the electrical to power the equipment but as far as a...

The way most blowthroughs are done they inevitably become bandpass enclosures by nature. This is because the subs are within the enclosure itself and the only path the air/sound waves have to get to the cab is through the port. Even if you wanted to do a regular ported enclosure you would...

It depends on what you consider loud. I had a quasi-6th for 6 sd2-8s on 2000 watts do a 143@33 hz in a tacoma access cab. Never tried to hairtrick and I ended up bracing my rearview mirror cause that bish wouldn't stay still even at quarter volume. For 6 8s that's not loud to alot of people...

After a month trying to figure that program out I am still running in circles.

Hello all. Joined this forum hoping to gain information/knowledge on enclosure building/modeling/tuning. I have modeled, tuned and built regular ported enclosures with no major issues but now I want to venture into the realm of 6th orders, transmission lines and maybe even horns. After over a...