Better Subwoofer for 2 channel Music: Focal Utopia Sub or JL Fathom f113


Hello Everyone,

I am looking for a good sub at about the 2K price point and am considering either the Focal Utopia Sub (15" woofer, 1000W RMS) or the JL Fathom f113 V1 (13.5" woofer 2500 RMS)- The fathom being slightly more expensive on the ’used’ market.  Both subs are highly rated and the Fathom seams to be very highly regarded on this site so I would like to try it. At the same time, my speakers are FOCAL Utopia BE series so I think the Utopia Sub will gel nicely and I would be able to save several hundred bucks to put towards other tweaks if I went with the focal sub. Currently I have a Monitor Audio Gold 12 Sub (12" woofer 600W RMS) which is very good, but want to see if either the Utopia or the Fathom is much better,  and I mostly use the Monitor Audio in my HT set up anyway.

Specs wise:

Focal Utopia BE Sub  - 15" woofer, 1000W RMS

JL Fathom f113 V1  - 13.5" woofer 2500W RMS

Both subs go down to ridiculously low Hz.

Usually, I am less into specs and more about hearing music (and not sure how important these specs are anyway) but I am not able to audition either of the subs (let alone in my system) , so kinda shooting in the dark and would appreciate some advise on which way to go as these are also heavy and expensive to move around to deal with!.

I imagine I will keep the new sub for a while.

I’d like the sub to merge with my speakers as seamless as possible, and provide that extra lower-level feeling and punch when needed.

Does anyone have experience with either (or both to compare)? Thank you in advance.


Aside -   My 1 pair of preamp LXR-outs is taken up by the connection to the Amp. So I would connect the sub via one of the two remaining RCA outs from my preamp - is there is a better way?

Ag insider logo xs@2xjmarshak

Showing 2 responses by erik_squires

The issue with sub size is integration.

Smaller subs are just less problematic than larger subs. The higher cut off prevents you from waking the dragons that live in the depths. Less chance of exciting nasty room modes, therefore, they sound better if you don't have adequate EQ and room treatment.

However ... given good EQ, treatment, and exact calibration, larger subs can be breathtaking.
Um, no. It's actually quite easy to build a good sub. The problem is always integration with the other speakers and the room.

If you don't have room correction already, buy the sub with the best options built in. 

If you can't get that, buy the smallest sub you can.

Best,

E