Willmax

Thanks all for the very helpful comments. It helps to clarity some misconceptions and/or assumptions. It is a pity that published specs from manufacturers most often than not don't tell the whole picture.

Yes I saw that as well, pretty amazing stuff.

My google search didn't get very far so I'd appreciate if the savvy people out there could shed some light on this please? The diagram below indicates 70 watts per valve, so I'm wondering what would be the approx. rated power output when 4 KT150 valves are used? 2 per each channel for instance - this seems to be the most common setup I gather. Thanks in advance.

32 Ohms, as per above, easy to drive even from most portable players and mobile phones.

Nice score of a top player.

Shiny Chrome cups, very nice! GLWTS

Awesome

Item: Opera Audio Consonance Cyber 100 15th with KT150 valves Location: SA Price: $1650 Item Condition: Immaculate with original retail packing. Reason for selling: NLR Payment Method: Pickup - Cash, EFT, PayPal Extra Info: Amp is about 12 months old fitted with quad matched KT150 valves (approx. 70 watts), full working order with no marks or blemishes whatsoever, would suit new buyer. Great synergy with Yamaha NS-1000 speakers, only looking to sell so that I can go up the food chain :-) High quality point-to-point wiring, gold plated speaker bidding posts and I/O RCA terminals. For more info head to Greg Osborn website here. Please send any questions or comments strictly via PM. Pictures: 

Hey @yamaha_man , Do you still have your NS-1000?

Dawns by Tallisker. Thanks to @Grizzly

This is some serious receiver for very little money. GLWTS

Magnificent!!! I'm lost for words mate, simply stunning craftsmanship and attention to detail. 👏

The cheaper crates are a bit smaller and flimsy but they'll do the job until the black 30L ones are back in stock at CaC. They'd be my preferred as well.