Hi!
Beolab1 is (in the B&O portofolios logic) the sucessor of Beolab Penta.. but imho it is difficult to compare them as they very different in their caracteristics.
Beolab1 is a very analytic speaker with a precise but cold sound. For me, when listening to Beolab1 the middle frequencies are overrepresented compared to the bass and hights. To my ears Lab1 sounds hard and cold as surgical steel.
Beolab Penta has a more warm and full sound but lacks details and sounds a bit "muddy" in the middle frequencies.
At my delaer I often listenend to Lab1, but it was always kind of exhausting and after I while I had to stop... the detailed but hard and cold sound is not my taste. In the end it is down to the personal taste/listening preferencies... there is no better/worse. For me it is definitely Beolab Penta.
For the short story: I went to a B&O store in Vienna (not my dealer) to listen to Beolab1. I brought my own CD and after a while the dealer saw my sceptical face and asked how I liked them. I told him they sound good, but could not convince me to change from my current spaeakers. The dealer asked my which one I have and when I told him I have a pair of Pentas he paused, sighed shortly and said "I can understand you".
My two cents
cheers
Foxtrott
"The first thing we do, let's kill all the lawyers."
Henry VI, Part 2 William Shakespeare