I've heard the 4800A (earlier version) and the Cherry Plus at Lapsan's (orientalexpress) house, but this was a while back and not on a system I was that familiar with. I've heard Lapsan's 4800A and compared it to the Jr. on my system, so can't speak to the Plus with authority.
IIRC, the Cherry Jr.'s top end has more in common with the Cherry Plus than it does the 4800A (earlier version), and this is in my own system. Bass handling is similar all around. I'm trying to relate what the 4800A sounded like compared to the Cherry Plus in Lapsan's system, so I may be wrong. Don't know if this is helpful or not.
Lapsan, can you comment?