Get 2 monoblock amps for your R1's and a mono amp for your center speaker.
That is what I'm doing. Model 12's monoblocks for my floor standers and a model 201 for my center speaker. All through a Classe SSP-800.
That is what I'm doing. Model 12's monoblocks for my floor standers and a model 201 for my center speaker. All through a Classe SSP-800.