These speakers have undergone a thorough electrical and cosmetic restoration by Muse Audio of Ann Arbor, MI and sound fantastic. The cabinets are in near mint condition. The crossovers have been rebuilt with high quality components and the cloth has been redone. All drivers are original but have been thoroughly tested and restored / re-surrounded where necessary. The potentiometers which nearly always fail due to corrosion have been replaced with high quality new production potentiometers. The stands are made of heavy welded steel. Our master technicians are degreed electrical engineers who are passionate about audio. Please refer to our Google reviews for a sense of restoration quality. Please contact our Ann Arbor store for more details.