Hey all, So I've just bought the following: Dali Concept 8's (Front's) 160w (Max) @ 6Ω Dali Concept Centre (Duh..) 120w (Max) @ 8Ω Dali Concept 2's (Rear's) 120w (Max) @ 8Ω Dali Concept Sub (...) Self powered (160w RMS) And wondering if I need a new amp to drive it all. I have the Yamaha RX-V473 (115 W 8 ohms, 0.9% THD Rated power output 1ch). Will this be powerful enough? And if not, Selby Acoustics appear to be doing some great deals on Onkyo Amps. For instance: Onkyo TX-NR616 for $699 (165 W/Ch at 6 ohms, 1 kHz, 1% THD, 1 Channel Driven, IEC) or Onkyo TX-NR709 for $999 (170 W/Ch at 6 Ohms, 1 kHz, 1% THD, 1 Channel Driven, IEC) So what I'm asking is firstly: 1. Do I even need to update the V473? 2. If so would you recommend either the TX-NR616 or the TX-NR709 3. Finally, if Yes to 1, but neither to 2. What would you recommend for the same price, need good reason to spend more than $1,000 btw.