Hello all!
I recently sold my PB12Ultra, - because I started getting the upgraditus itch, after reading more and more about the new PB13U that'll come. But at the same time, I was lurking around some DIY forums, - and got this "urge" to make one myself instead.
The choice was between a TCsounds 2000 15" and the SS Rlp-15". I wen't with the SS - and I should receive it in a couple of weeks, I hope.
Mike from SS recommended that I built a 200 litres enclosure, tuned to 17hz. Powered by 800-1000watt. If im going to tune the sub to 17hz, the pipe has to be 1meter, and have a diameter of 17cm, which is roughly 35 square inches of port area.
The thing is, I jus't can't find a pipe that has a diameter of 17cm. I can get a 6" PVC pipe (which is rougly 16cm in diameter, - but the INNER diameter will be 15.2cm with that pipe). The next closest thing I can get, is a cardboard pipe, that has an inner diameter of 19cm (im not 100% sure if it's 19cm INNER diameter, it may be 18.2cm inner diameter).
Also! I would prefer having a bit shorter pipe, so the box itself isn't that HUGE. Mike said that if I tuned the subwoofer to 19hz (with that 17cm in diameter pipe), I could shorten the length with 25.5cm.. So I think I will go for a bit higher tuning (19hz), so the pipe doesn't have to be that long.
So my main concern right now, is, should I go with 6" pipe (that has rougly 15.2cm inner diameter), or the cardboard pipe that has 19 (or 18.2cm) inner diameter ? (Mike said that a smaller port area than 35square inches might cause port noise - but he also said that It would most likely not be an issue unless I sit right next to the subwoofer). And - how can I calculate how long the pipe will be (in order to get the right tuning on the sub) ?
I guess I can mention that I plan on using a Behringer EP2500 to drive the subwoofer. .. And that this is my first DIY project, so im a bit green when it comes to TS parameters (and how to calculate length on the pipe etc). But I do have the skill to make the box at least.. I hope
I recently sold my PB12Ultra, - because I started getting the upgraditus itch, after reading more and more about the new PB13U that'll come. But at the same time, I was lurking around some DIY forums, - and got this "urge" to make one myself instead.
The choice was between a TCsounds 2000 15" and the SS Rlp-15". I wen't with the SS - and I should receive it in a couple of weeks, I hope.
Mike from SS recommended that I built a 200 litres enclosure, tuned to 17hz. Powered by 800-1000watt. If im going to tune the sub to 17hz, the pipe has to be 1meter, and have a diameter of 17cm, which is roughly 35 square inches of port area.
The thing is, I jus't can't find a pipe that has a diameter of 17cm. I can get a 6" PVC pipe (which is rougly 16cm in diameter, - but the INNER diameter will be 15.2cm with that pipe). The next closest thing I can get, is a cardboard pipe, that has an inner diameter of 19cm (im not 100% sure if it's 19cm INNER diameter, it may be 18.2cm inner diameter).
Also! I would prefer having a bit shorter pipe, so the box itself isn't that HUGE. Mike said that if I tuned the subwoofer to 19hz (with that 17cm in diameter pipe), I could shorten the length with 25.5cm.. So I think I will go for a bit higher tuning (19hz), so the pipe doesn't have to be that long.
So my main concern right now, is, should I go with 6" pipe (that has rougly 15.2cm inner diameter), or the cardboard pipe that has 19 (or 18.2cm) inner diameter ? (Mike said that a smaller port area than 35square inches might cause port noise - but he also said that It would most likely not be an issue unless I sit right next to the subwoofer). And - how can I calculate how long the pipe will be (in order to get the right tuning on the sub) ?
I guess I can mention that I plan on using a Behringer EP2500 to drive the subwoofer. .. And that this is my first DIY project, so im a bit green when it comes to TS parameters (and how to calculate length on the pipe etc). But I do have the skill to make the box at least.. I hope