Easy to drive, outstandingly natural sound from 40-50 Hz up.....AN-E, O/96, others?

@salectric , I have been interested in Spendor SP 100s, as well as Harbeth M40.2s but both of those have relatively low sensitivity for a 50-watt amp, although both are somewhat "easy" to drive from the standpoint of impedance.  Just not sure 50 watts would make them jump.

From Stereophile:

Spendor Classic SP100R2 loudspeaker Specifications
Sensitivity: 89dB/W/m. Impedance: 8 ohms nominal, 5.5 ohms minimum.

Harbeth M40.1 loudspeaker Specifications
Sensitivity: 85dB/W/m. Impedance: 6 ohms nominal. Suggested amplification: >50W.

http://www.stereomojo.com/Onix%20XCD-50%20and%20XIA160%20review/XCD-50ReferenceCDPlayerReview.htm

With ceramic midrange driver, it has an organic midrange sound with good details.

Also with active bass it is easy to drive with 50 W SET.

I drove this speaker with Line Magnetic 508 with good result.

I keep this one as second speaker to Lansche 4.1 (55K$ speaker with plasma tweeter).

Although it go down decent, it will help to match it with good subwoofer.

If you are interested, I can loan VAUGHN CABERNET to you for 2 weeks.

Tweeter: Split Ribbon
Mid Range: 6.5" Ceramic w/ 6.5" Passive
Woofers: Two 10" w/ Dual 10" Passives
Impedance: 8 ohms nominal, 12 ohms in
bass region, minimum 6 ohm
Sensitivity: 93 db
Response: 34 hz - 60,000 hz
Power: 8 - 120 watts
Weight: 86 lbs
Size: 9" x 14" x 42"

Klipsch Heresy IIIs, astonishingly clear and coherent down to about 58hz where subs should do the low range heavy lifting. A relative bargain.

Mitch2,

i owned the Spendor SP-100 for over 15 years and used it with a variety of amps ranging from Classe CA-300 (300 watts per channel) at one extreme to a single ended 46 tube amp (1 watt) at the other extreme, with lots of other tube amps in between.  They all sounded good (although the 1w amp clearly had its limits).  Based on my experience, with some occasional loud volumes, I would say the Spendors sound their best with a high-quality push-pull tube amp of 35-50 watts per channel.  The sensitivity rating of 90db only tells part of the story, however.  The SP-100 also has a rather flat impedance and is easy to drive.

My comments are limited to the SP-100, not the R or R2 models which are different speakers.

I considered the Harbeth 40.2 when I was in the market for a new speaker.  Although I wasn’t able to compare them directly, I am pretty confident the Harbeth would have a similar tonal balance with slightly better detail.  The Harbeth is not as easy a load as the SP-100 though and many people feel it needs a powerful solid state amp.

Living Voice speakers are what I moved to from AudioNote ANE's and I find them a better overall sound. 94db 6ohm nominal. I run them on a 8wpc 300b SET but honestly double that would be better.