A quick look at the PBN Audio Olympia PXis phono preamplifier. On the photo first preamp PCB. This board is more than versatile as it supports Current Injection gain, which means it makes the cartridge a ground resistor in the feedback circuit – really nothing over 6 ohms internal impedance of a cartridge needs to be applied. It also works with voltage gain – any cartridge can be used. This is a further development of the very successful Olympia PX circuit, stay tuned.