I did go and demo 2 Luxman amplifiers before i brought the Yamaha A-S3000 hooked up to Dali rubicon 6s and one of the luxman amplifiers where a class A and the other was a A-B amplifier but can not remember model numbers but felt at the time i liked the class A much better then the A-B amplifier was .
But this could of been that the class A-B wasn't run in properly but at the time i owned the Yamaha A-S2100 and thought there was not much in it between the luxman class A-B and my Yamaha A-S2100 and the luxman was a lot more money then my Yamaha was i think about £7000 worth .
I would say the build was the same between luxman and Yamaha may be a little better with Yamaha but ended up buying the Yamaha A-S3000 instead as i like Yamaha sound and goes well with Dali speakers but do not regret buying the Yamaha one bit .
But i do love class A which at the time i tried sugden and luxman class A amplifiers and both sounded nice but its all personal choice hifi at the end of the day and learnt over the years that speakers play a bigger part in getting things sounding right to your ears
But this could of been that the class A-B wasn't run in properly but at the time i owned the Yamaha A-S2100 and thought there was not much in it between the luxman class A-B and my Yamaha A-S2100 and the luxman was a lot more money then my Yamaha was i think about £7000 worth .
I would say the build was the same between luxman and Yamaha may be a little better with Yamaha but ended up buying the Yamaha A-S3000 instead as i like Yamaha sound and goes well with Dali speakers but do not regret buying the Yamaha one bit .
But i do love class A which at the time i tried sugden and luxman class A amplifiers and both sounded nice but its all personal choice hifi at the end of the day and learnt over the years that speakers play a bigger part in getting things sounding right to your ears