I think it might go down to 40hz. but not certain. I had a bass tone disk awhile back but lost it but I remember 40hz. bass and on some recordings it does good job. It's really a good speaker for the price of 2,500.00. Transparent with good soundstage and bass and plenty of details if source offer it. It can get a little harsh up top but since I got a carpet in my room, it seemed to settle down a bit.
I've heard sonus. Olympicaw, kef ls50, b&w, fritz speakers, Dynaudio c1.s, to name a few..
Compared to olympicas, more details in bass but as you would expect, a bit more forward in overall presentation.
Dynaudio c1 signature bookshelfs, sweeter mid and highs on Dynaudio and better soundstage depth.
But Dynaudio was hooked up to 20k audio research monos and preamp etc.
I haven't heard the micros with the dartzeel.. gear when it was first showed in audio shows.
But even without the dartzeels, they are very good speakers and would recommend it, very good sound with Hugo dac and job 225 atm. Can't wait to play them on my clones monos arriving next week.
I've heard a lot of speakers bookshelves because I went to a audio show and I can say I preferred the microones to any monitor at the show.. and there were quite a few of them.
the Dynaudio c1 are better imo including the setup.
I don't know how they would sound on the dartzeels so I can't say, but with audio research gear, I would take the c1s.
I contacted Jonathan tinn. to see if the micro2 were coming out early next year but he said he's not sure so ill prabably end up either getting a Dynaudio c1 or the Soundwave kaos 40s, so pm if you can remember
Or i might must keep it but if i dont, I'll prabably put it up for about 1,300.00 with stands shipped to Audioshark members.