If your thinking of buying any Chinese amp off eBay please think more than twice. A while ago I posted about my NS1000 speakers that I was planning to bring back to life. After re-wiring them (QED Silver Anniversary) and fitting binding posts I was somewhat surprised at only a slight increase in clarity, not as much as i expected, but the internal wiring looked fine before, not what i was expecting considering other peoples experiences, just a bit thin. I rechecked all the rewiring and it's 100% correct. I decided it was probably the amp or CD NAD521BBE and NAD C352 so as I was impatient looked at what I could buy with what funds I had. To cut a long story short I bought the VK2100 off eBay All in it cost £127.99, arrived in 3 days, weighs a tonne. My Brother (an electrician thank god) was here when it arrived. It was plugged in and it worked (Brother very surprised) The sound was detailed but a bit lean, the loudness button sounded awful. After a few days the selector knob got fussy only wanting to randomly let both channels work (email to seller worthless, no reply, as to later ones, this i expected) My Brother fixed this fault quite quick for me but was amazed at how well it looked built but like others was dubious about some of the components originality, He was also quite shocked at how much heat the unit gave off. Well after 3 weeks the unit was giving off a burning smell and on closer inspection there is discolourings on the board and i've decided to leave it off till my brother has time to pull it apart and rebuild it if it's worth it. To add insult to injury DHL sent me a VAT invoice for £27.53 this mornng for the unit. If you think you want one THINK VERY HARD.