Finished converting both and the sound is AMAZING. :) It's hands down beaten my Cambridge Audio 540R Holy balony batman! Anyway pictures etc tomorrow.

Humm finally solved, I've had to change to an IEC kettle plug and hook up the ground to the IcePower board. According to the B&O dev manual it's not necessary (like hell it isn't). Not a trace of hum or noise now. I'm aiming to have both speakers done by today. Sound is different but I can't really test it with only one speaker

Hum solved. I'm running crappy phono plugs until my nice ones arrive tomorrow (I've always used spdif in the past). Grounded the phono plug and can't hear anything. From a technical viewpoint that means SUCCESS :) :) :)

Good news! My kit arrived - I spent 6 hours doing the first one. The components are so tight they need only minor tacking in with the glue gun, they are like a perfect fit! It's now 00:00hrs so I can't pump it up, however I have quite a large mains hum coming through to the speakers which I need to sort. This could be because only one phono

The first and easy stage is to get the display panel working. The IcePower's have two LED outputs, one is standby, one is power on and if both are on there is a fault. Here I have inserted a dual-colour LED into the original Penta socket. It's a perfect fit. I measured and cut two rubber strips and used a glue gun to secure. You can use anything

Those M100's were really awesome, and really big. But the edge & control of the Class D IcePower should give the Pentas the edge I reckon. I'm not too concerned for stats to be honest. I'm taking a speaker that's reknown for it's sound quality (and has no cap/spr problems) and matching it to an amplifier that's highly regarded

Mucho agreeance on the active amp side of things. I didn't know the Pentas crossover changed I thought they were all the same. It makes sense since the amp changed from Beolab 150 to 200 and they were probably tweaking to meet the new characteristics. I'm working on the original Beovox from 1989 (e.g mk1). I don't see any reason to put polypropylene's

You're never going to hear the difference unless they are on the input side, it's the same old snakeoil argument for speaker wire. His capacitors were blown, and how his drivers looked like that I don't know (mine are perfect and been playing since 1989). The original capacitors and crossover must be fine if the Pentas sound this good. Yeah

Of course these speakers can be driven by anything (Beo 8000) but I'm after the glorious sound that comes from a proper Class D. In a nutshell I'm upgrading the speakers to B&O's latest technology but shifting the active filtering to passive filtering. Regarding the Pentas, I believe the reason they sound so good is to do with the phasing

A while ago I contacted Peter from this forum thinking my 70's 3800's were a match for his Pentas. I was wrong. At anything other than low volume the Pentas rock. They rocked so much I went and bought some. I still have them, and consider them to be better than anything else I've heard (I've not heard the 5's though). Of course the