Very nice ?
I agree with the description of Big Ambience.
Exceptional fidelity for 47 & 48 year old recordings. I cannot speak to the technical merits of the piece, orchestra, and conductor as I am not really a classical fan; however, even a novice like me can tell this is a well performed and conducted arrangement.
I did need to boost the rears a tad to level all four channels but that isn’t an isolated occurance for my system.
While my ears think there are some subtle discrete placement of instruments in the rears, the booklet states that DG’s 4 channel mixing console was used in the recording with the rears being focused ato capture the reflected sound of the recording space with omnichannel mics. So maybe not really discrete but a trick of sound reflection?
Interestingly - The booklet also offers its own theory as to why quad never lasted as a format. To quote the booklet: “The vinyl LP - the problem child of the quadraphonic concept”.
“the needle technology used during the vinyl era was simply unsuitable for four channels.”
Interesting viewpoints.