Fender Concert head Rivera Era made in the ear’y 80’s  designed by Rivera 
Probably one of the best he made to my opinion 
50w 6L6 of fender clean 
This model
Has a two channel option with a normal volume treble basse and a more complete channel with gain volume master and treble middle
Bass presence and reverb 
Super powerful and versatile clean sound a really good base for pedals etc 
Kinda twin reverb silverface cheaper and you can plug it to any cabinet with a 50 watts easy to use amp 
Really good condition 
Serviced