Which speakers for McIntosh tube amp MA2275-Why?


I would like to get advices on how to select the best speakers for my McIntosh MA2275 tube amp at 75 Watt per channel. Using these opinions I will limit my search to a handful of speakers. It would be best to listen to as many as possible but there is no high-fi in my area and even listening to a hand full of speakers would require significant traveling.I live in a remote area. My budget? I would buy used,$6000 maybe? Size is not an issue and would like efficient speakers.I need fair bass response for pipe organ. Transparent with low distorsion and a huge sound stage would be nice. I listen to 30% classical 30% rock 30% Jazz 10% other. Being a physicist technical discussions may help in my preselection.

Thank you,
dmartine
Sorry to sound like a broken record but, "Best" is in the eye/ear of the beholder. There is no definitive "best" anything, it's all subjective. When you ask a question like this, the answers will always be what folks think is "best" to them in their system.
I know the speaker you are looking for. It will exactly fulfill your requirements for huge sound stage, high degree of transparency and low distortion. It is located at the Rocky Mountain Audio Fest which is a terrific hi fi show in Denver October 14th. 15th. and 16th. From your remote area you can simply fly in to DIA and for $30+- get a round trip shuttle to the hotel where the weekend rates are very low. There you can list to lots and lots of speakers and see or hear what floats your boat.
I remember one year I bumped into a guy who was shaking his head. He had purchased speakers unseen and unheard and realized there was so much stuff out there that would have been better and some cheaper.

The best
Jim
Jim makes a great suggestion. It is a great idea for a person who lives far from audio dealers, or anyone who wants to hear many different brands in one place.