The 3000 are older and the screen is different, but in term of sound quality, is it comparable? Is one more powerful?

 p.

Hi Philippe,

Power output seems identical and sound quality is the same. I've got both Lab 3000 and 4500 and although the 4500 amp is supposed to boost the bass slightly I must say that I can't notice it.

I've just replied to your question on ebay with my phone number so call me if you wish to discuss.

They both boost the bass slightly - see the superb Beocentral article about them. Tim repairs these products and has a good working knowledge of their workings.

Hi Filippe,

the only difference between the two is the display imho.

I own both versions and can't hear any difference at all.