SS RL-p 15 Designs...

[masse1369]

I am looking to build a single 15" unit, ported, and was wondering if there is an "ideal" design for amp, eq, etc...Everything I have found to read about seems to be a double driver design.

I have looked on this forum and AVS and have not come up with anything. I am open to either a box or a sonotube. Does one work better than the other with this driver. Does the D2 or D4 have an advantage in a single driver unit? Total Budget, I would say for amp, eq and sub, would be around $800 or so. Thanks in advance.

[Inu_Yasha]

$800 is about what many people pay for their RL-p15 projects. I have a single driver in a ported box powered by a Behringer EP2500. Most people choose that as their amp of chocie bc of price/performance ratio.

Check out the mission accomplished thread about subs here:

http://www.htguide.com/forum/showthread.php4?t=18218

My sub is a little larger than ---k---'s except mine is tuned to 16 hz and downfiring. I forgot what thread I posted my pics on. It seems like more people are jumping on sonotubes over boxes; I went with a box because I needed something functional while being a speaker (mine is going to be a table when completed).

[SteveCallas]

I don't know how well the search functions work, but ported RL-p15 D2 designs have been mentioned numerous times here and at AVS. Heck, there's another thread on the same topic on this very page :B I probably sound like a robot now mentioning this design so much: ~260 effective liters with a 6" diameter port that is 30" long with 600-900 watts for the D2. Steve nn has noticed better sound quality with a sonosub model than a box model - take that for what you will.

[masse1369]

Thanks for the replys. I have decided to go the sonotube route. Now, what all will I have to have in order to complete this project?

Obvisously when they become available, I will pick up a RL-p15 D2, probably going to go with the Behringer EP1500 and DSP1124P for power and EQ. Which size sonotube should i use? What all do I need to get for the port, baseplates and the such? Connections, Cloth, etc...?

Thanks in advance for the help.

Actually is there just a good link to "building a sonotube?"

I want to stain the endplates a dark cherry color and have just black cloth over the tube.

[ThomasW]

The search function for this forum works very well.

There are a few dozen tube sub projects posted here.

The only step by step guide tube sub I've ever seen is from Pat Sun.

http://www.io.com/~patman/sunosub.html

[chasw98]

Check the link in my sig.

[mooseknuckles]

I'm about to start almost the same project (15" RL-p ported sonosub). Going to be purchasing an EP2500 to power it. Is it worth waiting for the D2, or is there little difference in the D4?

[strossos]

Fancy this, I'm also starting my Rl-p Sonotube project.

I got an email from mike (great service btw), and he says due to a 15" basket shortage the D2 models won't be in stock for another 4 weeks.

That brings up the question, how well does the 4 ohm model work with a EP1500 or EP2500?

[Jerm357]

The d4 will work great with EP1500 (depending on the design) You can just wire each VC to a channel of the EP1500 for 800watts.

[SteveCallas]

To get roughly the same low end performance, the D2 doesn't need as large an enclosure as the D4. The D2 is also a little easier to power, as it can be wired for a single 4 ohm load. Finally, it's a bit more sensitive down low, so it doesn't use as much excursion.

[Brian Walter]

To get roughly the same low end performance, the D2 doesn't need as large an enclosure as the D4. The D2 is also a little easier to power, as it can be wired for a single 4 ohm load. Finally, it's a bit more sensitive down low, so it doesn't use as much excursion.

Steve, being more sensitive will only mean that it will need less power/voltage. For the same SPL, you'll need the same displacement/excursion, at least that's my understanding of how this works.

Brian Walter

[SteveCallas]

Upon looking at the designs more closely, yes, the difference in output corresponds with slighty less excursion from the D4 between 14-21hz. My mistake.

[Jack Gilvey]

Heh...you confused me with your original response, but I was willing to listen to the "why".