Well; here's the breakdown. The low-end kit runs 30$ and the audio-phile, Black Gate Cap Rikens etc goes for 69$ w/o transformer but with PS and parts. So I needed a trans which I used a Hammond toroidal that ran me 40$ but it is a good one. Then many of the connectors and wiring I had already so there's the 90$ something. The passive parts are pretty expensive if you buy them solo. The boards on Brian GT's amp are very high quality double-sided and well laid out. There is however no option for changing to an inverting config. So there we have the skinny on those. I like the idea of the swap capability and the what looks like bigger PS caps. Oh and the heatsinks are not included I had to get those. I amfamiliar with Marchand Quality; I had a active cross-over of theirs many moons ago when he was first starting out. So how did you set-up the whole unit?