ProAc DT8 vs D20R

you need to provide more information to me to be of help to you

what are your current speakers
what music do you listen to, how loud
what is rest of your system
what are you trying to improve in terms of the sound currently
what is the nature of the room

here is an example of someone asking the question in a way that lets others help them in a useful way...

https://forum.audiogon.com/discussions/speaker-upgrade-18

Thank you ver much for your advice. I realized that I wasn't clear enough. My current speakers are the ProAc DT8. My PS Audio system is the following: PerfectWave DS DAC, Stellar 1200 amplifiers, Direct Stream Power Plant 12, AudioArt interconnects and speaker cables, Triode Labs and Essence Reference II (Essential Sound Products) power cables. My system is located in my master room (crazy location-just moved to a small apartment). I mostly listen to jazz (trios quartets), acoustic music (piano and guitar) and vocals. My speakers sound great (they are close to the rear wall-14"). Will like to improve the mids, soundstage and deeper tighter bass. Thank you.

what are your room dimensions?

hard or soft room?

13x15’ between hard and soft.

When I purchased my D-30R's I had a chance to listen to the D-20R. Given how similar they look, they do sound quite a bit different. The D-20R is slightly darker speaker with a full rich sound. They imaging was top notch and the sound was very seductive. Bass was a bit soft and maybe not as precise but overall it was impressive.

The D-30R is more like its big brother the D-48R. More neutral and detailed with better dynamics. All things being equal and depending on your budget the D-30R might be the better choice.