Thanks Simon for being so generous in your explanation. Looking forward to the annotated pics when you have them. I'm not sure I'm up to assembling it but lets see. Don't need remote switching, just remote attenuation control.

My interest was piqued when I saw you mention Bruno Putzey who is doing some pretty edge things in the audio world and getting wide recognition. Love to have a listen to his Kii Three speakers (doubt I will ever afford them though).