I don't know anything about the preamp but I have the EAR 534 power amp. It sounds marvellous, is built like a tank and punches $$$ above its weight, which is considerable. Also, when I wanted info on the tubes EAR responded with the information immediately. The only criticism I have relates to the manual which is very basic but who needs a manual for a power amp anyway. My experience is totally different to that of newbee.
