Subwoofers - Final Thoughts with Martin Logan ESL 13A


I’ve narrowed this down to 3 choices (I think) and was looking to see if anyone has had some experience with pairing these subs with ML ESLs? I can’t try and return because they are mostly secondhand purchases, so hoping to get it right the first time!

Force Cancelling subs have been highly recommended, so:

KEF KC92 (or KF92 older model) 2, 3 or possible 4 of these:

https://assets.kef.com/product-support/kc92-subwoofer/KC92_info_sheet_EN_V4_20240124.pdf

Martin Logan BalancedForced 210 - Maybe the best as they match up nicely, but I could probably only do one of these as they are HUGE. I have only one spot I could put one as far as the manual's recommendation goes. Martin Logan says these will cover 3000 sq. ft. My room is only 500 sq. ft. Two maybe overkill, but some say, "2 subs or no subs" Maybe I could put another addition on the house :-( 

https://www.martinlogan.com/en/product/balancedforce-210 - click on Specs/Lit

Lastly, The Swarm Subwoofer System - not sure how well this would work with my ESLs.

https://www.audiokinesis.com/the-swarm-subwoofer-system-1.html

Any advice would greatly be appreciated (as usual).

Thanks, and all the best of the season to you all!

 

 

 

128x128navyachts

Definitely Swarm @audiokinesis. I like the BalancedForce products, but one alone won't help with nulls (to some extent, you can equalize out peaks). The KEFs are great, but I don't know how well they integrate with non-KEF speakers.

You have powered woofers in these speakers that you can tune to a perfect blend with the panels. You can turn up the bass and still retain woofer/panel integration. Adding extra subs, in my opinion, is asking for trouble. You will most likely not get the timing right and it will be a major pain to integrate.

@joeyfed55 I was trying to keep away from RELs but I'm glad you are happy! $7800 subs with $12000 speakers, big investment!

@hedwigstheme I was thinking the other way around 3 - 4 KEFs but not sure how the Swarm would integrate with the ESLs. 

@audphile1 Hey, nice to hear from ya, hope all is well! I have tried numerous ways to tweak the bass on the MLs. From the Perfect Bass Kit, to the dials on the back. I am not savvy enough (yet) to make adjusts with the ARC Genesis software, but I did send the files into a tech at Paradigm/Anthem AV support for them to tweak and I just can't seem to get it right. Yes, I have had subwoofers before and had trouble integrating them, but I thought I'd give it on last ditch attempt as I feel something is missing here.

I had ML Spires in the past, with only one 10" woofer and it had more bass than the 11As with two 10" woofers, didn't need subs.

Hey @navyachts all good here! Hope you’re doing well!

I never felt the need for subs with the ML Montis. I’m surprised to hear your setup is lacking in bass department.

It’s possible you’re sitting in a null. That’s the only thing I can think of.
I would recommend trying to move closer to and then further away from the speakers while playing a test track that is known for good bass. See if you hit a spot where the bass response becomes acceptable. One other thing to try is to move the speakers. Further or closer to the front wall. Make small adjustments 1” at a time. But try the listening position first.