Which Sub. Rel B-1 or Fathom F-113

So why did you have to use the Tube Buffer? I read your link but I still dont see why it is needed.

Oneobgyn, Thanks, I am going to send you an email.

I just ordered a JL Fathom F-113 sub.
I own Eggleston Works Andra 2 speakers and Pass Labs Amp and Preamp.

I have moved the Andra's out in the room where I get much better sound stage, but the low bass has suffered.

I do not like the idea of adding more electronics and cables using electronic crossovers.
So, I am planning to use the Andras full range and the JL F-113 to fill in the bottom.

Can the JL's be used successfully in this fashion or do I need an electronic crossover?

Thanks, My Pass Labs Preamp (XP-10) has 2 sets of outputs.
So, will that still be a problem?