Hiya guys, I have recently acquired a quad 405-2 power amp and a 34 pre-amp. I'm not sure if they work properly or not as I don't think have been used for a few years, so thought I should get them serviced first to make sure everything is alright...Does anyone know how much quad charge to service things? If they needed any repairs, does anyone know if quad are expensive in that regard? Also does anyone have any info on these models - do they compare to todays hifi in terms of sound quality? A quick scan on google seemed to give me the impression that the 405-2 is quite a powerful and good quality amp.... Any opinions or information on either of these amps would be great, I have enclosed a couple of pics if anyone could help me date them? (I understand that different colours ones denote different ages) Also the 34 has a CD button so surely it can't be that old? Looking forward to any responses!