So far, I have built my family room front mains (Ego) and center speakers (Zaph) based on proven DIY designs and am very happy with the results. I am now ready to turn to my sub-woofer.
Initially confused on which way I should go based on all the reading and reviews from the forums, and comparing DIY with commercial products I was honing in on the SVS - PB12+ as capturing what I wanted out of a sub. The price was, however, about 400 more than I wanted to spend. I almost broke down and bought the SVS SB-12+ as the price range was right and it had most of what I wanted. However, the SVS PB12+ had great reviews and I really wanted the extra punch at the lower frequency ranges since I will be using this with a lot of movies.
One thing I noticed in several reviews of the PB12+ was a comparison to what they were calling their reference which was a Shiva 12 DIY sub. While the PB 12+ produced a respectable showing, the Shiva was the ultimate winner. So, I thought, why not just DIY using a Shiva and get the price I can afford and the low end response I will enjoy when watching movies. The above was my thought process and I would appreciate it is anyone can tell me if my logic has any fault.
I have a family room of 2400 cubic feet. I have read the Shiva_app.pdf file and believe that based on size and performance, I will build the 4.3 cubic feet tuned 19hz ported box. I have ordered the Shiva driver and the 500W O-Audio Plate Amp.
All I need now is the design of the box and unfortunately, while the Shiva app file mentions that I can find drawings for the Shiva driver in something called the Shiva Enclosure Documentation I can not find this anywhere on the Shiva web site. If anyone can point me to this documentation I would be grateful.
I will keep you posted as this project develops.