today i discovered a 4 Pin connector on my amp v4 2.0 which is named “phono in”. Since my pre-amp died some days ago, i have the question whether the amp v4 has a pre amplifier on board and where to get an rca 4pin connector? Every connector i found in the internet had only 2 pins.
Into the 3.5mm jack input socket you can typically input a CD player or something like a tuner without any other preampfification.
A turntable would require a RIAA equalised pre-amp.