Thank you for viewing. This is a Jensen Alnico PM12H vintage amplifier speaker. It is a 1947 model, reconed, and in good condition. It is 8Ω compatible. I was told by the buyer that this is the predecessor to the current P12Q. I connected it to a Fender 8Ω amplifier and used it, and it worked without any problems, producing a dry, flavorful, and very good sound. You can enjoy high-quality alnico sound with various amplifiers. I also have many other effects pedals for sale, so please take a look if you'd like.