Too much power?

I find the ideal volume depends on your whole system. But in general, the better my system has gotten, the less volume is needed. 
 

Over the decades I have pursued this hobby, more power has increased the punch and fullness in solid state amps. Although, for less power tube amps bested them overall.
 

Looking over your system, if I were you I would look to upgrade my preamp before looking to increase the power of your amps. I would guess that a really good audiophile preamp would increase details and midrange bloom and have a huge improvement on the overall performance of your system. I would recommend the best used Audio Research, VAC, Conrad Johnson or Presto preamp you can afford. Then you can revisit the amp issue later.

More power isn’t always the answer in hifi. My speakers are 92db sensitivity and I also listen mostly in the 65-80 db range.  Probably using 2-25 watts of power. 
Maybe I missed it, but what’s the rest of your system?

@dain,

At 70dB SPL your speakers are not getting 1 watt or 2 watts or 10 watts, in fact they are not even getting 1/2 watt. At 70dB SPL your speakers are getting milliwatts from the amp. In my experience driving low efficiency speakers with milliwatts will sound anemic at low volume; high efficiency speakers can play well with milliwatts and not sound anemic at low volume. Also amplifiers, tube amplifiers and SS amps produce more distortion in lower impedances then higher impedances. In my opinion, higher efficiency (not higher sensitivity) and higher impedance speakers make more sense then a more powerful amp. 😎
Hope that helps. See article below:

Mike

@mulveling Wrote:

You should definitely subscribe to the "First Watt" philosophy.

I agree!

In the know Maggie owners all say that the more power the better.

Sanders certainly does.  Clipping does not sound good.

I listen at 60-70dB max as well. People have advised me that

planar or electrostatics would be best for me. Female vocals, etc.

If you have EC and Maggies just sit back and enjoy the ride.

Why bother to listen to a "system" at 70db, try a clock radio. I listen to music at the volume as recorded and meant to be heard.

When Vladimir Ashkenazy made a recording of Beethoven's piano sonata No. 28 in 1977 on a Steinway D, that is what I want to hear 45 years later in my room. Complete with his musical intent and it's necessary dynamics.

Ambitious audio is a manner of having a different but equal experience to hearing music in the flesh.