Is that dbx BX5 model no. a typo ?
Maybe you mean the DX5 cdp possibly ???
If you mean the RCD-1072 vs. DX5 I'd take the DX5.
But to be completely honest neither CDP really does much for me.
And the prices for both seem kinda high for a vintage "mid tier" CD player.
If it were me and I had a budget of $275.00 or so,I'd keep shopping.
Though admitedly I'm partial to specific DAC chips & transports.
So truthfully there are some CDP's I like more than others.
Pretty much every brand had good & bad models in their product lines @ any given time.
So you really gotta research the specific models and decide which ones were "built to last" -and- sound good doing so.
This place is a tremendous resource for vintage CDP hunting >>>>
https://www.dutchaudioclassics.nl/
Then it's all about understanding what specific CDPs & DACs sounds like and which you tend to prefer.
Me I tend to prefer the Phillips & Burr Brown OS ~ multi-bit based CDP's.
The Philips based players with the TDA1541 DAC & CDM transports are always @ the top of my list.
Followed closely by a BB mulit-bit PCM player even if it uses a Sony KSS transport.
(hopefully a CDP w/a KSS model that parts are still available for)
Though it also matters that I dont listen to high resolution material either.
I'm strictly Redbook CD here...
Only CDP around here that plays modern high res material is my Yamaha CD-S300RK.
So it might help others to know what CDP you're replacing,and whether you enjoyed it's SQ.
Then we can try to suggest models that may be somewhat comparable,or even a bit better.
HTH
Bret P.