I took this from the work bench and i comfirmed it with B&O, If you have owned a lot of B&O equipment then you will have probably noticed that these models give a slightly disappointing sound when used witha passive loudspeakers when compared to some of of the earlier designs. This is surprising as the power amplifier circuit is very similar

I got the info for this mod from this site in the workbench. I have a 500 watt sub woofer thats set to kick in at about 60 - 70 Hz and it 's been pumping all day with no ill effect and no smoke. I also have 2 pairs of penta's 1 pair of cx100 and a cona sub connected up and I have played one cd after the other with out a break since this morning

How can it feed back through a broken circuit ? I did it on friday and have had no probs !

I have given your question some thought there is saftey measure built in that would prevent the amp from serious over heating and just cut out. Regards Henry

No problem I'm going to do the 5500 some time tomorrow and I'll post photo's Regards

Well I found the mod in the workshop so I have done it and it works thats all I can tell you and I'm over the moon with it. Theres sounds now coming from my speakers that I never heard before. If there's anyone in the Herts area PM me and you can listen and examine my amp at my house and report back I'm giving you an open invitation Regards

Hi Peter Sorry I can not take a photo as it's now back in use. They are square and white, you will find them under the plastic cover where the fan is. Undo the top board and lift it back and you will see the plastic covering, gently lift the two battery like things and remove the one screw from the plastic cover and if you have the back facing you

Hi I just wanted to say thanks for the info on the mod to improve the sound I removed the four capacitors c 215 c 216 c 415 c 416 and the sound has improved ten fold there's much more depth to the sound. Regards Henry

Hi Every One I have now tested it and it has improved the sound by giving it more depth it does not alter the volume level but the sound has improved ten fold. Regards Henry

Hi Robert I read about the mod and I have finally found the 4 capacitors that it said to remove, have now removed them and will test sound in the morning and I will let you know the results Regards Henry