So I'm looking to buy a nice loop station (as the title suggests) so that I can start a band comprised entirely of myself and my Toneworks pedal..

The only two I can find much information on are the Boss RC-2 and the RC20xl, but both are for guitar.

For those in the know, will there be a noticeable loss of the lower frequencies if I get one of these?

And are there any made specifically for the bass?
There is no such thing as a guitar or bass loopstation. Only loopstations. They just record your sound and play it back, simple as. Oh, and by the way, I strongly recommend the RC-20XL over the RC-2.
i used to own the RC-2 it was pretty good but i ended up returning it for the RC-20xl it is waaaaaaaaaaaaaaay better
Telecaster bass :
[x]jazz pup
[x]split p pups
[ ]finish/paint