Subwoofer suggestions for budget system?


My current setup is a pair of Magnepan 1.6 speakers, a pair of Schiit Vidars, Schiit Sol turntable w/Goldring E3 cartridge (I have a VAS-rebuilt Denon DL-103 with Ebony shell and microridge stylus when I can get someone to come set it up for me), Mani 2 phono stage, Asgard 3 headphone amp acting as preamp, Schiit SYS as source selector, Modi 3+ connected to Volumio for streaming digital and an Orchard Audio RCA-to-XLR converter to drive the Vidars in monoblock mode.

I'd like to add a subwoofer to the mix that can keep bass out of the Maggies.  I'd, of course, prefer a dipole sub to go with the dipole speakers, but not terribly picky ATM.  My budget is around $200 to $300 for now.  I have been very tempted to build a pair of my own subs, but that's not in my budget right now.

Suggestions?

technotoad
Post removed 

I should add: the labels on the back of the Klipsch are not possible to read. Who designed it? I took pictures of it with my phone and DSRL and still cannot read the numbers 

Your Dynaudio"s are not at all the issue.

Where are that rooms bass modes?

With five corners in that room I’d be surprised if the mode you say your hearing between your speakers is a major culprit.

Unless you consider a subwoofer swarm no amount of equalization, room optimization processing or brand of subwoofer can solve the lack of placement flexibility and/or cable limitations you seem to be dealing with.

@m-db

yes I am dealing with a lot of limitations, making slow progress.... and it's not even my post :)

@soix 

I made some progress with the SVS. The Klipsch is just too hard to blend in, I never found the sweet spot. It's very possible that it's me not the sub, and it's just a lot more testing. It seems that there is no one setting, one place that fills the room correctly for every track and genre, maybe that's why people use 2?