Basically it comes down to implementation of the design. All of the designs have their benefits and detriments. Coupling capacitors have a wide bandwidth but can give up dynamics, details, and transparency to transformer coupled. With transformer coupled you can get fantastic sound at 20K but designs up to 40K is even better. They look pretty bad looking at the square wave but you do not need 100 to 200hz to make them sound fantastic. I have built both (and own both) and the transformer coupled just has more transparency and details. I use V-Capacitors in the preamplifier as I prefer their sound to the others we have tried. The Servo design also depends on the implementation. I have heard some that sounded very poorly but the old Luxman power amp that I have is just incredible.
So is one better sounding than than the other - to me again design implementation is the key but each has its benefits if done well. Coupling caps is a much easier design to implement IMO.
Happy Listening.
So is one better sounding than than the other - to me again design implementation is the key but each has its benefits if done well. Coupling caps is a much easier design to implement IMO.
Happy Listening.