Digitech Stereo Amplifier AA0520

Providing plenty of crisp audio power with two channels at 120WRMS each, this amplifier is ideal for powering a second set of speakers elsewhere in your home or office. With dual line audio input, you can connect your favourite audio sources. It also provides audio line back out, so you can install it inline with your current equipment too. A small headphone amplifier (and output socket) is conveniently provided, and heavy duty speaker terminals provide cable / banana plug connection. A large volume dial and black look is at home amongst any decor, and it includes a remote control so you don’t have to walk over to the unit every time you want to use it.

Features:

• 6.5mm headphone output
• Two line-level inputs
• RCA stereo line output
• Output Power: 120W + 120WRMS Max into 4 
• Power Input: 220VAC @ 2A Max.
• Audio Input: Dual Stereo RCA Sockets
• Audio Output: 1 x Stereo RCA Sockets
• Speaker Output: 2 x Stereo Speaker Cable Receivers/Banana Plugs

The lowest allowable speaker impedance is 4 Ohms, which gives the maximum rated power of 120 Watts per channel.
It will work perfectly well with higher impedance speakers such as 8 Ohms, it's just that the maximum power will be reduced in proportion to the increase in speaker impedance.
With 8 Ohms you will only get 60 Watts per channel, 6 Ohms you would get about 80 Watts per channel and so on.