100 watts enough?

@unsound wrote,
’Many amp designers suggest that amplifiers are typically at their most linear when operating at about 20% of their output and further suggest having about 80% headroom.’
This seems very logical. 20% = 20 watts from the CH Precision amplifier.

Kijanki calculated based on robal’s seating distance from his speakers (Accurately in my opinion) 1 watt will provide 82 db SPL and 10 watts will provide 92 db SPL So definitely not exceeding the range of desired amplifier output linearity. 92 db is loud (Assuming no hearing deficits) and probably well above robal’s listening levels in his condo environment (Achieved with only 10 watts).

CH Precision amplifier is providing 100 watts of very high quality.
I don’t see the rationale for recommending higher power amplifiers for robal’s stated needs and circumstances. His speakers are 6 ohm impedance (Minimal) so they are not demanding of high current capability amplifiers. 
Charles

@charles1dad, I haven't recommended higher powered amplification here. I agree with most of yours and Kijanki's posts, though I don't think 92 dB is all that loud, and I think the OPs rather large room is a consideration. IMHO, while 100 dB is most certainly verging on the loud side; 105-115 dB peaks are LOUD.

@arcticdeth,

you sound like the type of neighbor I would avoid at all costs. 

Hi @unsound,
I get your point about loud volume levels and certainly it is subjective amongst respective listeners and their perception of such. Given the OP’s stated condo listening limitations/situation I’m guessing (And could be wrong) that 92 db SPL would be pretty loud relatively speaking.
Charles

my speakers adequately. I have EgglestonWorks Andra III speakers which are 88db efficient


~~~~~~~~~~~~~~~~
There is your problem. 
88 db ~~~IN~~ Efficient speakers, 91db+ = EFFicinet speakers, 
91db < = INefficinet speakers, 
Power = power, 
you only need 25 watts to drive a   wide band.