the sa12 was the predesesor to the sa100 amp, it is a hybrid amp which for what these amps are selling for in the used market would be hard pressed to beat. I have found Counterpoint equip to be very inexpensive on the used market due to a bad reputation in regards to reliability. I own their flagship sa11/9 preamp phono stage and have so for over 6 years without much problems. I have 8 other pieces in the past and other than human error on my part they were very satisfactory.
