In theory, I would shy away from adding a second layer of amplification onto my existing one (i.e. "supercharger"). OTOH, were this to be used, I would have to reconcile myself with the idea of listening to a MF -- rather than an Atma.
In practise, and given low sensitivity spkrs, I would simply cut off low frequencies fm my Atmas at line level. In fact, I would try that right now if I were you (at a total expected cost of around $25). Either off the shelf ones (you know, P-express & alia sell these rca plugs with xover inside them) or better still make them myself (it;s a simple circuit): maybe even, Ralph from Atma can give some pointers:)
In practise, and given low sensitivity spkrs, I would simply cut off low frequencies fm my Atmas at line level. In fact, I would try that right now if I were you (at a total expected cost of around $25). Either off the shelf ones (you know, P-express & alia sell these rca plugs with xover inside them) or better still make them myself (it;s a simple circuit): maybe even, Ralph from Atma can give some pointers:)