Upgrading sub to get a live feel.


I currently have a set of JBL 4319 which has its history as 4310. They are studio monitors and as a result they sound like studio monitors you hear everything, but they lack the physical presence on the low end. They have wonderful mid range and voice presence. I also have a pair of SVS SB1000 to help with the low end. 

I want to eventually upgrade to JBL 4367 with upgraded pair of subs, for this reason, but in the mean time would a sub upgrade be considered before the speakers. 


thewatcher101
mijostyn:
"I would rather two high quality subs than four cheap ones. Room control is a must for thewatcher with two subs as his room is very square. Make yourself a plan and stick to it. Messing around for the sake of messing around is a waste of money. "

Hello miijostyn,

Even though I’ve learned it is true that 4 cheap subs if properly positioned and configured will typically deliver better in-room bass performance than two subs regardless of their quality, I believe you’ve confused the current $500 half-off sale price of thewatcher101’s subs he’s already using, two high quality SVS SB-1000s, and assumed they are cheap, low quality subs which they definitely are not..

It’s also becoming more apparent that you have a lack of knowledge and experience concerning the distributed bass array (DBA) concept in general. I’m basing this on your comment that the OP would need to use larger and more powerful JL F212 subs on a previous post and your comment that room control is required on your last post, neither of which are true.
My previously proposed plan for the OP to use a 3-4 sub DBA system is based on my belief that home audio systems are best optimized in performance by considering them as two systems, a bass system and a system for everything else, due to the very different manner that the very long bass and much shorter midrange/treble soundwaves behave in any given room.
I recommend first getting the bass sounding good (powerful, dynamic, smooth, detailed, with a seemingly effortless and unlimited quality and seamlessly blended with the main speakers) because it’s typically the most difficult to achieve in most rooms. The best method I’m currently aware of to get the bass sounding good in virtually any sized and shaped room, even in an acoustically challenging square one like the OP’s room, is a 3-4 sub DBA system.
The lowest octave on music is about 16-32 Hz with the audible range extending down to 20 Hz and anything lower only felt and not heard. The ability of a bass system to accurately reproduce deep bass tones down to at least 20 Hz creates a solid bass foundation that a lot of music is built upon and on which the OP can build the remainder of the audible frequency spectrum, reproduced by his main speakers, upon.
Utilizing a 3-4 sub DBA system also allows the OP to extend the deep bass response performance by adding one or two PB-1000s subs (with a rated bass extension limit of 19 Hz) to his two existing SB-1000s (with a rated bass extension limit of 24 Hz).
Just to be clear to you and the OP about 3-4 sub DBA systems:
-There’s no lack of bass output or dynamics since bass duties will be shared between 3 or 4 subs and you can adjust to your preferences using the volume and crossover frequency controls on each. You definitely do not need to purchase higher quality and more expensive subs.
-There’s absolutely no mics, room correction, parametric equalization, bass room treatments or anything else required.
- The main reason the DBA concept works so well is the psychoacoustic principles involved which take advantage of how our brains naturally process bass soundwaves below about 100 Hz.
-The quality, agility, smoothness and speed of the bass produced by 3-4 sub DBA systems allows them to be seamlessly integrated with virtually any pair of main speakers you currently own or will own in the future.

Hopefully, the OP will check back in soon and let us know his thoughts and impressions.

Tim
I ordered two PB-1000 subs and will work with two my SB-1000, they are free returns for 45 days, so there is no harm, with wonderful upsides, and will report with my experience.

I’ve also found a store around me with JBL 4367 to demo, and I will see how much low end those speakers will produce, and if my current setup can compete.

JBL 4367 do lack the lowest octave, because of their driver design, and will need subs regardless. 

Check back in a month.

Thanks Tim.
I would have stuck with sealed subs and got more of the SB 1000 or SB 2000.  Are you using the system for home theater also?
Should I have the seal or ported closer to me?

I watch a few movies here and there, maybe once a month. I don’t really care that much for movie sound quality, most of the time it isn’t master very well, at lease the ones I am watching. But when it does it’s nice.

I think you can always plugged the ported ones up and get close for testing. 
I'm not sure what the best answer to that question is.  My intuition is that it would be better to have the ported ones farther away in case there's port chuffing.  On the plus side, the PB 1000 will go lower and have more output than the SB 1000.  I suggest giving SVS a call and let them know how you plan to use them and get their advice.