Sub recommendation for vienna acoustics bach grand

Home Theater setup used REL B2 with Vienna Acoustics Haydns Grands.

Other options:
JL Audio
REL R Series
Paradigm Sub 12

Magic 8 ball says: Ask again.

Zd542 told it like it is, until you get a strong 200 watt + amp you will never even know what your speakers sound like and if you even need a sub.
In a room that large, with those speakers, I would not settle for an amp with less than 300w a side at 4 ohms.
Plus, using a sub in a room with even dimensions would be quite a trick.

I would tend to agree with ZD542. The Bach Grands are 4 ohm nominal speakers, meaning they probably dip below 4 ohms in part of the audio band. Very few receivers are capable of properly driving a 4 ohm or less load.

Buying a separate amp that is rated to drive 4 ohm loads will result in better bass definition and control. As ZD542 mentioned, you may find the need for a subwoofer is mitigated or even eliminated. I would certainly try this first before investing in a subwoofer.

You may want to consider auditioning something like Emotiva's XPA-200: 240 watts/ch. (into 4 ohms) stereo amp which has a 5-year warranty. The cost is only $499 (with free shipping) and they give you 30-days in-home trial and will pay to ship the unit back if you decide not to keep it.

http://shop.emotiva.com/collections/amplifiers/products/xpa200

The Emotiva amps are seriously good for the money...

-RW-

Agree with Zd542 and Schubert, those speakers need a quality, high current amp of at least 200w/ch to get the performance they are capable of. Sound from them will improve in every way, not just the bass.