This is a stock 11ch amplifier from a 1995 Cadillac DeVille concours 4 door I use to https://offerup.com/redirect/?o=b3duLkl0 is in mint condition and it is only made for this year ,make, and model. My Audio installer is 2nd to none...and was my stereo guy for all my vehicles....so once it was time...my sound system was removed...along with this factory amplifier...which has been sitting in my storage for many years now. This is for serious Cadillac enthusiasts only...as it is for those who might have a need for a factory amplifier for there Cadillac as well....