dual sigma22's for speaker b22 question

[el_matt0]

firstly and most obviously, WILL two S22's (using a 100VA trafo for each one) with my 4 channel b22 l be sufficient for running a pair of small high-efficiency bookshelf speakers ? I was pretty sure that i had heard of / seen people doing it with two S22's, but upon reading AMB's site further, he does at one point clearly state he recommends using one S22 and trafo per B22 board. do i really "need" 4 sigma 22's and trafos, or can i get away with at least trying two? And my second question is, when using 2 (or more) sigma 22's, what is the technique for wiring at the IEC power entry module? I assume I don’t need one IEC per S22, so do I simply just join the wires from each trafo at the IEC (in the appropriate places obviously), or will "connecting" the transformers in such a fashion be bad news? (hopefully someone can interpret what im asking lol

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[vvs_75]

As far as I understand and building mine for speakers you need one S22 board per B22 one. So total four. As for the transf.s goes, I first wanted to use 4 x 100VA but in the end bought 2 x 230VA and it should be more than enough to power all four boards. You can even use one transformer but it should be appropriate one like 400-450VA. I choose two to save money and space so one will power two s22 for the Right and the other transf. will power two S22 for the Left channels. As for IEC you can use one for both transformers sitting in parallel