Good mid-priced speakers for vintage Mac?

Sorry to be this blunt, but I think Hakuchosan has no idea wwhat he/she's taking about. Larger B&Ws need a lot of power to open up, and the 801 is the second-largest in the lineup. You probably need at least 250 Wpc to start getting good results out of them. Of course, at 30 Wpc you will get sound, but far from what those amps and speakers could achieve if well-matched.

For the record, I drive B&W 804S with McIntosh MC-275 and love it. The 275 has 75 Wpc and the 804 are the smallest 3-way speakers in the B&W 800-series.

As noted above, speakers are very personal. Reference 3a De Capos could be an option. Sonus Faber monitors could be another option, although I suspect it might be too warm a combination. Try searching the virtual systems section, searching for your amps and see what hits you get.

Good luck!

Klipsch and McIntosh is a classic combo, also the Altecs someone mentioned earlier

Macs and Bozaks were a very popular pairing in the fifties and sixties. They would often use each other's equipment to demo their products. With the Mac30 there is a good chance that your father's Bozaks were the model B302A/Concerto V. They came in several furniture styles and were/are very good sounding speakers. They later evolved into the B401 Rhapsody which used improved tweeters. Both can often be found for sale on E-Bay at reasonable prices. Bozaks are one of my all time favorite speakers.

Other popular Mac parings besides the before mentioned brands were JBL and Tannoy. Not sure about the used prices on JBL, but used Tannoy's are still very expensive.

Right now I have a rebuilt Mac240 driving a pair of vintage Klipschorns. If you have the room and the corners, they are still VERY impressive. Your MC30's have more than enough power to drive them and I've often seen them for sale between two and three thousand dollars. They are still being made and parts are readily available. Have fun and good luck.

Thanks for all the good advice. Bond-san was right on: My dad's Bozaks were B302As!