Audio Nirvana 300b amp - has anyone heard it?


Audio Nirvana 300b amp looks like grate value at ~$1500 
Its designed in the US, assembled in China, though appears of high build quality
Has anyone heard it, or can provide impressions??
Thanks
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Wonder what transformers they are using as that's the single most costly parts in a SET. For that dollar I'm thinking the parts quality can't be all that good. I meen desent 300B tubes cost $300 a pair. I suppose it's a wait and see what people think after listening.