"...Receives unbalanced audio input from a preamplifier with single-ended outputs. These signals are converted to balanced signals upon entering the chassis and processed as balanced signals thereafter."
Most probably, this amplifier uses phase splitter to process unbalanced audio inputs as balanced signal thereafter.
As far as I know, Joule-Electra LA-300/150 single-ended preamps use this technology processing all input single ended signals (RCA) in balanced mode i.e. canceling preamp induced distortions and reducing the noise and before output converting these signals back to single ended in order to exploit RCA outputs.
This is very clever approach allowing these preamps to do balanced processing "on the cheap". Indeed, this is could be one of the explanations of why LA-300 is so quit (more quit then most ss preamp I auditioned) with so much "black background" making music so much more realistic.
Thank you
Rafael
Most probably, this amplifier uses phase splitter to process unbalanced audio inputs as balanced signal thereafter.
As far as I know, Joule-Electra LA-300/150 single-ended preamps use this technology processing all input single ended signals (RCA) in balanced mode i.e. canceling preamp induced distortions and reducing the noise and before output converting these signals back to single ended in order to exploit RCA outputs.
This is very clever approach allowing these preamps to do balanced processing "on the cheap". Indeed, this is could be one of the explanations of why LA-300 is so quit (more quit then most ss preamp I auditioned) with so much "black background" making music so much more realistic.
Thank you
Rafael