Luxman R-341 speakers cutting out at moderate volume
I've got a Luxman R-341 amp, I'm having an issue where by at reaching a certain volume output, which I would call moderate, there is a faint clicking sound from within the amp and the speakers cut entirely. By turning the volume knob down near to 'off', the clicking sound occurs again and the speakers work perfectly, up until a certain volume output... when it does the same thing.
I have noticed that it will also do this during songs with a wide dynamic range. It will work perfectly during a quieter section of a track, but when there is a significant bass swell or volume increase within the song, the amp will cut out for the duration of that louder part.
Has anyone got any ideas on how I might fix this? I've got some basic skills at fixing amps, but am by no means an expert.
The manual can be found here!
Thanks in advance for any information!