[b]That late night, laid back easy listening experience - a result![/b] A couple of years back I used a combined Ben Duncan mains conditioner and transformer for some US electrostatics I then had - Audiostatics. The BD made a significant difference to the speaker performance. When I moved the speakers on, the BD went with them. Recently, been very intrigued at how much better the system sounds later at night. I know about environental ambient noise issues etc - but I wondered whether I could get this really pleasant and involving music experience elsewhere. I rembered the ben Duncan sound with just the electrostatic speakers. I considered some isoteks but they use filters and BD reckons this is not the best way to go. I found a s/h ben Duncan Transformer for sale from a mains supply enthusiast. These things are so sought after I thought it was worth a go - if it did nothing I'd sell it on. I know Frank aka Effem, Zanash and others don't advocate mains conditioners - but this one doesn't use filters - and wow does it make a difference? Oh yes, and significantly for the better. Being on holiday at the moment I spent most of the day listening to record and Cds and not believing how great they sounded. What is more interesting is that my main amp - a Krell is away being serviced so I am using an old Classe power amp - which is sounding superb - so v interested to hear what it will sound like with the Krell back in place - a few weeks yet. So what did I hear - definitely more space airiness and detail - but a really powerfully musically involving experience, making me want to try out familiar recordngs and not at any point being disappointed. I have read that conditioners can strangle music - not here, I can only suggest it may be system and mains dependent but this has to be one of the single most effective devices I have heard lately, that really delivers. And without wishing to start a mains conditioner vs non mains conditioner argument I thought I'd let you all know what this did in my kit. Faaaantastic!:D