I have owned both and I also have the service manual. There are no differences except the type number.

My quest at the time was to find a pair of Lab 150's but there were few available. The QUAD blew my mind such that I just gave up looking! I must get to hear a BM8000 one day but I fear that a direct speaker comparison is no longer possible for me. Somebody visited and heard my set up and offered so much money that I couldn't refuse!!

Your answers to the original post are all very much missing the point. The question asked about RL140's driven by a strong, very clean amp. The 5500 certainly doesn't qualify in this respect being fairly modest 55w output. A boys amplifier really! I drove my RL140's with a QUAD 405 power amp which provides at least 100wpc into any reasonable

I know that mobeyone has a 4500 system. Might be worth sending him a PM?

Your dealer can supply new frets in a range of colours.

They are no longer available from B&O and are rarely seen on ebay due to not very many sold when in production. The ones for RL45 or 60 are more common but be aware that they are not the same and will not do the job.

I am old enough to have grown up with many cars with SU carbs. Engine oil was good for the dashpots then and I'm sure it still is.

chrishawks: Does anybody know how to clean the laser lens? Start by downloading the service manual from the site. It includes CD test instructions and dismantling procedures.

The passive is a reasonable general purpose amp rated at around 30wpc into 8 ohms (Depends on how you measure?) so most speakers capable of handling this sort of power will be OK. I have a passive which is quite happy with a pair of S80's but I often use it with CX50 as an alternative.

Frog is quite correct. It's probably in the wrong option setting. Assuming you have a Beolink 1000 do the following: Place the system in Standby. The press SOUND 1 STORE This will put it in Option 1 which is the factory default.