Several years ago, I bought this: Hitachi Mini Hi-Fi Component System AX-M137
It works nicely. However, I want to know if it is worth upgrading the speakers, and what sort I should buy.
The amplifier output power is 50W x2, and the frequency response is 20HZ-20kHZ.
The existing speakers have an impedence of 4 Ohms and an input power of 50W
All advice gratefully received.