maranta 2270

Good evening people... Does anyone have an idea why my Marantz 2270 puts out less volume (per same position on the dial) than my Marantz 2230? Sound is fine on both... Marantz 2270 runs much hotter.... I didn't check DC offset or bias... but I wonder, could it be a cold solder joint on the...

Hi guys, I am replacing the headphone socket on my 2270 as the original fell apart in situ... My question in what to do about the two 47 ohm resistors that I believe were wired to the + L and R channels in the old socket and to a common ground. The new socket is a Monocor one (apparently the...