All good info in posts with which I generally agree. To the OP who asks about specific subs, Focal, JL, I’ll say this:
I know nothing about the Focal but enough about JL to be dangerous. Using a JL in my system F112 v2 has really upped my game, one of the most valuable upgrades I’ve made. That said JL has had their share of issues that were addressed in their v2 versions. I’d stay away from earlier versions. The JL IMO is the current leader in subwoofers. Very well defined, articulate, tight, fast, accurate and reproduces the lows down to below your hearing, below hearing you can feel it though.It has all the functions available to integrate it with your system regardless of name brand and will integrate seamlessly with some effort. Once I properly integrated my sub it gave a truly magical representation of the material. It’s a powerful piece of audio equipment. It also has its own room correction software to tame the modes. I do not use the correction as my listening space is such that it’s not necessary. Depending on material localization can be easily determined at frequencies mentioned in other posts depending on your crossover settings. Would I like a dual setup? Absolutely but at the price I easily can live with just one.
Add in to address hook up question,
I have my sub connected to the Preamp via its available variable RCA output. This allows for the Preamps volume control to adjust sub volume simultaneously with the left and right channels.
My space dimensions are 15 x 23 x8
Hope this helps,
I know nothing about the Focal but enough about JL to be dangerous. Using a JL in my system F112 v2 has really upped my game, one of the most valuable upgrades I’ve made. That said JL has had their share of issues that were addressed in their v2 versions. I’d stay away from earlier versions. The JL IMO is the current leader in subwoofers. Very well defined, articulate, tight, fast, accurate and reproduces the lows down to below your hearing, below hearing you can feel it though.It has all the functions available to integrate it with your system regardless of name brand and will integrate seamlessly with some effort. Once I properly integrated my sub it gave a truly magical representation of the material. It’s a powerful piece of audio equipment. It also has its own room correction software to tame the modes. I do not use the correction as my listening space is such that it’s not necessary. Depending on material localization can be easily determined at frequencies mentioned in other posts depending on your crossover settings. Would I like a dual setup? Absolutely but at the price I easily can live with just one.
Add in to address hook up question,
I have my sub connected to the Preamp via its available variable RCA output. This allows for the Preamps volume control to adjust sub volume simultaneously with the left and right channels.
My space dimensions are 15 x 23 x8
Hope this helps,