I also have the DVP-NS999es DVD/SACD/CD player. The analog output stage (in the US version, other parts of the world get better opamps, according to the factory service manual) uses some pretty cheap opamps. I replaced them (and installed sockets) with better opamps. The Analog Devices AD826 or the Burr-Brown (owned by Texas Instruments) OP2132 are noticeable improvments!!!

I use the Sony TA-P9000ES to do various switching functions between the 999ES, SCD-XA77ES and a couple of other sources. Following the TA-P9000ES, I have an ICBM for bass management and active crossover function for my speakers and subwoofer. Bass management in my other pieces of equipment is not used.

Bridge Guy

I'm assuming that you have now integrated a sub into your system and am curious to know what your thoughts are regarding the addition?