Linkwitz Orion is a superb sounding speaker IMO, but it requires a fair bit of money and/or expertise with the electronics (crossover and amplification) to do it right. You can buy a very good used pair of large speakers for less than the cost of building the Orions.
recommendations for large speaker kits or DIY
Can anyone recommend a good large speaker kit or diy speaker project? Not the little things that pass for kits these days, with 6 inch woofers and slim cabinets, but a good old fashioned big speaker with both authority and finesse. Making cabinets is no problem.