hi there everybody, i'm a new member of this forum but not to audio ... so let's get to the facts (excuse my french) : I think on building a quad amplifier, didn't yet decided which model and I could use some help deciding 
... also I recently found out about quad 909 and wanted to take a closer look at it but unfortunately I can't seem to find a schematic for this can anyone point me to a schematic of it or explain me what has changed from the 707 series to the current 909???? tnx in advance
... also I recently found out about quad 909 and wanted to take a closer look at it but unfortunately I can't seem to find a schematic for this can anyone point me to a schematic of it or explain me what has changed from the 707 series to the current 909???? tnx in advance