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decoud wrote:

Romy, apologies for being unclear: the amp is not yet built: this is just a spare chassis I am offering for others who may wish to build it too. Inputs and outputs have not yet been added to the chassis. I therefore cannot comment on the sound yet but will do once the thing is ready; the speakers are Danley SH50 (http://www.danleysoundlabs.com/synergy_horn.asp?model=SH%2050). The output transformers were made by Promitheus Audio (www.promitheusaudio.com) as specified in your description.  Regards, D

Hm, that is interesting. I do not know Danley speakers and I never heard the Danley SH50 but I would have a concern about them. According to the paper they drop impedance to 3,5R:

http://www.danleysoundlabs.com/pdf/SH%2050%20Spec%20Sheet.PDF

… which is OK, you will be able to take care of it by changing the loading the output stage accordingly. My primary concern is that I do not know what kind of drivers Dan Danley in his speakers. The 100dB sensitivity is irrelevant in this case. The specification suggests 1000W continues. With this power it shall be very serious current handling in VC, consequentially a high cone mass and many other things. If so I wonder how complaint they will be for minimum currents. It is very possible that Danley, as a pro speaker, uses heavy VC drivers, very beefed up suspension and ceramic magnets. These types of the drivers need to be driven by SS powerful amplification and I am not sure if 10-20W SET would be a right choice.

I might be wrong but I do have a lot of suspicions in this idea. 

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