Do more expensive amplifiers make a difference?
I'm looking for clarification further to recent threads on amplifiers, and their apparent 'lack of positive SQ effect' on easy to drive speakers. It has been picked up by many Harbeth fans in particular.
I read that an easy load speaker like Harbeth will have no better SQ by 'feeding' it with a more expensive amplifier if it is played at the same, moderate volume from a decent source.
So does this mean that I can amplify a decent source with a very basic amplifier into some easy to drive (eg Harbeth) speakers, and it will sound as good as a very expensive amplifier if played it at moderate volumes?
For example, will a basic amplifier such as a 85wpc Yamaha A-S500 at around £300 do the same job as a much more expensive amplifier such as a Luxman 505ux, Naim Supernait, Sugden etc?
I realise build quality, reliability, service support etc are important factors, but other than these, are there any benefits to expensive amplifier upgrades if the cheaper one fullfills its duty to the same sonic standard?
I might be able to save lots of money of this is the case! And get some tone controls to boot!