Twin-core mains cable works very well a speaker cable. Otherwise, anything that's suitable for carrying at least 1 amp should do fine.
Interconnects should have decent quality terminations. Gold plating reduces the likelihood of corrosion. Maplin and Poundland should probably keep you covered.
I'd spend the money you save here on getting better components, especially loudspeakers (I'm aware that others here were discussing the merits of better amps being more important in budget systems, but I disagree).
Twin-core mains cable works very well a speaker cable. Otherwise, anything that's suitable for carrying at least 1 amp should do fine.
Interconnects should have decent quality terminations. Gold plating reduces the likelihood of corrosion. Maplin and Poundland should probably keep you covered.
I'd spend the money you save here on getting better components, especially loudspeakers (I'm aware that others here were discussing the merits of better amps being more important in budget systems, but I disagree).