Amp advice sought for Coincident Total Victory

The eight watt Frankenstein is a different animal. I owned a pair a while back.
"Headroom" is simply a lack of constriction when a sudden, instantaneous need for current presents itself by way of the software, isn't it?. The output power of the amplifier is only part of the scenario.
I'm (primarily) a rocker; yet there was rarely a time when I felt the need for more power. The Frankensteins have so much current on demand so to speak, that I never felt that they got "flustered" when the music got complicated. Heck, the driver tube has it's own transformer and PS!
I think the Coincident speakers had something to do with this also. Mine were similar to yours, at 95db sensitive; but I think it was more the (lack of) impedance curve that played in the music's favor. The amps were so good that I think I would have reached for more speaker sensitivity before I went for more watts; but to be honest, the resolution and completeness were so good that early on I just ate the compromise in the gain department with a huge grin on my face.

Rfogel8,I was present at that session and to be honest the Frankenstein MK2 amp was more transparent,open and dynamic than the Atma-sphere. The other listner present FWIW felt the Frankenstein better, it`s all subjective. And yes multi driver speakers can be driven quite well if designed with the intend to mate with low power SET amps.It`s in correct to equate fewer drivers with= easier load it`s not that simplistic.

Thanks everyone, now I am more confused than ever:).

After reading the replies, I took some measurements. WIth full gain (0.7 V AC input) to one amp and the other turned off, my Extech spl meter (c weighting, slow response) read only 85 dB both at 1 m from the drivers in front and at the same distance from the side mounted woofers. According to my knowledge, if the speakers really are 97 dB, then at -12 dB, the speakers are only seeing about 1/16th of a watt. Under the same circumstances a voltmeter placed across the speaker terminal read about 1.4 V AC. The current through the speaker cable was about 0.05 A AC. I am not sure if the electrical measurements have any meaning, as they were taken with an ordinary multimeter and the AC settings may only work for 60Hz. Is this an indication that I am not getting the power I should be from the amps?

The amps are original version Cary Cad 300se's. From what I can find they are somewhere between 15 and 18 years old. All tubes are new with the exception of the rectifier tube. As far as I know, the rest of the parts are original.

I would appreciate any insights.

Thanks again,

Dave

Dave
One point to keep in mind is that Israel Bloom used your speaker(mine also) heavily for the design and circuit of the Frankenstein MK2.He`s adamant that it will easily drive any Coincident speaker he has built.The fact is all 300b amps are`nt equal, they range all over the map. As Azaud mentioned above the 6em7 driver tube is ultra high current and requires it`s own PS seperate transformer.It`s very extended and powerful as per design. I hope you`ll get the chance to hear one and judge for your self. The Cary may have different design parameters.

After the above post, it dawned on me that I should be taking the electrical data while playing a 60 Hz test tone. The results with max gain from the preamp:

Voltage across the amp inputs- 3.7 V AC.
Voltage across the speaker terminals - 8.5 V AC
Current through the speaker cable - 0.7 mA AC or 0.0007 A AC