Thiel Owners

I am a completely newbie to these things, but I am now a Thiel owner. A pair of Thiel CS2's fell into my lap last week. I was utterly amazed at how good they sounded, and how I could hear so much more going on in the music. I leapt at the opportunity to get them. I was recommended to this thread by someone from a different thread. Wow. You all are both extremely knowledgable and kind.

I have a question about adding a subwoofer to the system. Because of some of the music I listen to, and because the speakers are hooked up to my tv, I wanted a subwoofer just to capture some deeper bass. I went ahead and bought one. I guess I rushed it. No worries, as I can return it or exchange it easily.

The system I have is:

Thiel CS2s
Rotel RC-1070
Audionics BK-ST 140 (BT-2)
NAD 5000

The speakers are hooked up to the Audionics, which--along with the NAD--is in turn hooked up to the Rotel.

I bought a refurbished Martin Logan Dynamo 12" sealed sub for $583. It is connected through LFE to the Rotel. The main issue is that it makes me feel nauseous. This is so weird to me. I have never heard of that before. I feel unsettled and just plain physically sick. Some additional points:

1. It's better if I set the Low Pass Filter to 35-40 Hz, so it isn't in the same range as the CS2's. But I can still sense it.

2. It's also better if I set the volume incredibly low. In fact anything past the barest minimum volume on this makes me feel bad, and overwhelms the speakers.

3. I have played around with the Phase selection and this doesn't seem to affect anything.

It seems to me that if I have to set something at the barest level and it still doesn't sound great, I don't have the right sub, or the right set up. Do I need something smaller? Or a different brand or set up?

It's in a roughly 10' by 30' space with sloped ceilings.

Thanks in advance for any ideas!

That’s a really interesting idea! Unfortunately there is only a high-pass filter so I can’t experiment with that.

Thank you!

I have definitely unplugged it for now! I can consider keeping it without a sub. But I did notice something lacking while watching a movie the other night. Any sci fi movie with a deep music track will make me want more bass. I also listen to hip hop and trap music. Those sound really great and clean without the sub, but there is a something missing. And even orchestral music, which is the main thing I listen to, sometimes feels like it could benefit from a little bit of something at the bass end. Maybe a smaller or less powerful subwoofer would do the job better?