+1 @cmach
You perfectly nailed the differences between the D30 and D48.
@itzhak1969,
I remember my demo at AXPONA 2017. I was in the medium sized room and they had just started playing Boz Scaggs "Thanks To You" through a Naim system. The low end was really powerful. This track is used to test the low frequency extension of loudspeakers, and I was amazed at how much bass the D30 produced. I made sure that there were no subwoofers installed. It was kind of overloading the room a bit. But the musicality was amazing. This was the first time I was listening to this track.
Now, the D48 has a "larger scale" as a whole. They will sound bad in your room. I am able to say this because I recently interacted with a audiogoner who installed Spendor D9 in his listening room which was almost your dimension. I have listened to the D7 extensively and can imagine how much bass the D9 can produce. It is almost like the ProAc D30 and D48. Anyways, he loved his previous A6/A5, but was thoroughly disappointed with the D9s. The issue was not the D9, but his room. He eventually went with Devore Fidelity loudspeakers in his room and is very content. He told me that his regret was that he sold the ProAc D30 (previous generation). So even if you had money to buy the ProAc D48 or even the K6/K8, they might not fit your room. Hope this helps.
You perfectly nailed the differences between the D30 and D48.
@itzhak1969,
I remember my demo at AXPONA 2017. I was in the medium sized room and they had just started playing Boz Scaggs "Thanks To You" through a Naim system. The low end was really powerful. This track is used to test the low frequency extension of loudspeakers, and I was amazed at how much bass the D30 produced. I made sure that there were no subwoofers installed. It was kind of overloading the room a bit. But the musicality was amazing. This was the first time I was listening to this track.
Now, the D48 has a "larger scale" as a whole. They will sound bad in your room. I am able to say this because I recently interacted with a audiogoner who installed Spendor D9 in his listening room which was almost your dimension. I have listened to the D7 extensively and can imagine how much bass the D9 can produce. It is almost like the ProAc D30 and D48. Anyways, he loved his previous A6/A5, but was thoroughly disappointed with the D9s. The issue was not the D9, but his room. He eventually went with Devore Fidelity loudspeakers in his room and is very content. He told me that his regret was that he sold the ProAc D30 (previous generation). So even if you had money to buy the ProAc D48 or even the K6/K8, they might not fit your room. Hope this helps.