Help Best 5-disc cd-changer...........

The important point is to get a reliable changer. Add the DAC of choice. I have PS audios and have been very happy with the smooth output. Doesn't have the hard top end edge like the Benchmark I tried.
Like my Sony Changers but the Wadia 170 is also quite good and comes with that fun factor!
If you get a separate Dac you won't have the expense of replacing a complete CD player, just a transport of choice.
A music server today, the jukebox of old. Seems like we're moving full circle.

Couldn't believe my ears after picking up an Onkyo DX-C390 for the office (from Amazon, brand new for around $150 with free shipping) - This is a 6-CD changer with a 192/24 DAC and Vector Linear Shaping Circuitry just as found in Onkyo's much more expensive "high end" DX-7555 player. This player really does sound special. (It seems there have been complaints by several owners regarding the unit's reliability, but mine has been used every day for almost a year with zero issues.) -gg

In my home office I still use my 2000 purchased Technics SL-PD6 which was about $150 back then. I use it with a Paradisea+ DAC. I wouldn't call it the best, but it gets the job done.