Pair of Pioneer Model HPM-40 Crossover – Teletechproaudio
Pioneer HPM-40 Crossover | diyAudio
Could use some refurb advice (Pioneer HPM-40) : r/vintageaudio
Used hpm 40 for Sale | HifiShark.com
Found these first gen pioneer hpm 40's for free on craigslist. They look pretty good after cleaning, and all they need are new surrounds and possibly a new tweeter (one of the
Pioneer HPM-40 Vintage Bookshelf Speakers; Classics! - The Music Room