I have recently bought a pair of immaculate Quad ESL-63s to complement my Yamaha A-S3000 amplifier and have been extremely pleased with the results. However, I recently came upon the following quote of a comment by the Australian reviewer Greg Borrowman on using electrostatics with the A-S3000.
You will need to remember that because the output is balanced, the negative (–) speaker terminal is not at ground potential, so you should not try to connect the speaker terminals to anything other than a standard pair of speakers (that is, don’t connect the amplifier to electrostatic speakers or to a powered subwoofer).
I am now concerned that I am living on borrowed time (so to speak) and that the amplifier is likely to explode, shut down or damage the speakers. In the user's manual, much is made of the floating and balanced power amplifier technology, but the only warning Yamaha make is of connecting an active subwoofer to the speakers L/R CH terminal, as well as of various cross connections between the left and right terminals. Surely they would have written something if the Yamaha shouldn't be used with electrostatics?
If someone could help me out with this and (hopefully) put my mind at rest, I would be very grateful!
You will need to remember that because the output is balanced, the negative (–) speaker terminal is not at ground potential, so you should not try to connect the speaker terminals to anything other than a standard pair of speakers (that is, don’t connect the amplifier to electrostatic speakers or to a powered subwoofer).
I am now concerned that I am living on borrowed time (so to speak) and that the amplifier is likely to explode, shut down or damage the speakers. In the user's manual, much is made of the floating and balanced power amplifier technology, but the only warning Yamaha make is of connecting an active subwoofer to the speakers L/R CH terminal, as well as of various cross connections between the left and right terminals. Surely they would have written something if the Yamaha shouldn't be used with electrostatics?
If someone could help me out with this and (hopefully) put my mind at rest, I would be very grateful!