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P-audio IS-M215B (a GSUB15 similar plan)

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heavydub View Drop Down
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Joined: 07 October 2020
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    Posted: 18 April 2021 at 10:15pm

I can't find any thread that talks specifically about this plan, so I'm opening this one instead of resurrect old topics where this plan was cited.

Anyway I did a lot of research here in the forum about this plan and other double reflex 15 bass design, to be used as kick bins/upper bass (around 80-200hz) in a 4/5way  sound system, above scoops.

First of all, I will post the link of the plan, in High resolution (I can't find it in HQ in SP forum, I can only find low resolution images) https://sonotone.in/images/cabinet_drawings/Dual%2015%20inch%20Subwoofer%20C15-600EL%20x%202.pdf

  1. Do you have any direct experience with this box?
  2. How do you consider it? It's loud?
  3. What frequencies will cover?
  4. What drivers should I put inside? Here, Dub Specialists (that seems to like very much the p-audio box), says that PD1550 are deadly inside it but I'm interested to know if there are also other drivers that will work very good, just to have the ability to choice. https://forum.speakerplans.com/anybody-have-plans-for-the-gsub-but-15_topic59687_post913684.html#913684
  5. Should I put polyester fibre inside? how much and where? Sorry I am totally noob about how polyester fibre works in speaker boxes and how can you decide where to put and how much.
  6. Also a last question: can you compare the P-audio design vs the BBC BR 215? http://boomboomcollective.free.fr/site_downloads/BBC.BR215.MidBass_Speaker_Design.pdf

I am not considering the G-SUB 15 mod because I've read here in the forum (check for example the link in point 4) that P-audio design should be more loud. In the same link you can find other info about G-sub 15, P-audio design and also the BBC BR 215.
As I told, my idea is to use a double 15 reflex box as a kickbin/upper bass above 4 superscoops v-1000 loaded, and below 4XMT121 (that I still have to build). After lot of reading it seems that P-audio plan should be the one of the best choice and before buying wood and drivers, I would like to read opinions about people more expert than me. Thank you for your time.

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