NAD T973 Power Amp - Power Rating 7x145w or 2x200w

I haven't acually seen any product specifically mentioning it like that... Have you? Any other products actually state that?

This is from the NAD website;

Its feature list includes:
- 7 x 140W Minimum Continuous Power (8 / 4 Ohms); all channels driven simultaneously
- 2 x 200W Continuous Power (8 / 4 Ohms)
- 230W, 390W and 450W IHF Power into 8, 4 and 2 ohms, respectively
- Mono-block, Modular construction
- Differential, Class A input circuit topology
- High Current Holmgren™ Toroidal Power Transformer
- Input gain control for each individual channel
- Gold Plated RCA Inputs
- NAD Soft Clipping™
- 12V Trigger for automated ON/OFF operation

http://www.nadelectronics.com/ht_amplifiers/T973_shortform.htm

Thanks guys! very helpful.

Here is another multi-channel amp with similar spec, but it looks like it's not as good(effective) as NAD I guess

POWER OUTPUT (Anthem PVA 7)
# of Channels Driven --------- 1 ----- all(7) -------
Power rating ----------------- 125 --- 100 -------

http://www.anthemav.com/NewSitev2.0/AnthemProduct/PVASeries/PVASpecs/PVASeriesSpecs.html

It means
when listening to movie(5 or 7 channels) = 100W/ch
and when listening to music(2 channels) = little less than 125W/ch.

Only 25% increase, compare to 40% increase for NAD for 2 channel applicaton.

So, whatever their design method, I geuss that NAD amp is better deal in terms of 2 channel application?

I thought it's very natural to provide the 2 channel only power rating, but surprisingly not many provide it like NAD and Anthem.

NAD is known to be very conservative and honest in their power ratings, and I guess it fits my need well, so I'll probably get it after reading some more reveiws and auditioning.