??? Established Manufacturer or Take A Chance ???

As a manufacturer that is not well know I would say to contact the one you are considering and as about issues or future repairs.

As a manufacturer we are all point-to-point wired using the best parts versus even the well established manufacturers.  As a repair facility many repairs are because of lower quality parts and circuit boards over a period of time.

Designs can be simple even if a manufacturer is out of business if you know a excellent repair facility with a technician that has a degree in electronic design or has been doing repairs a very long time.

Happy Listening.

@richardbrand The comparing price thing becomes quite difficult, put a Off the Shelf Product from a well exposed Brand that costs $20K - $40K, against a designed item with a BOM of $4K - $5K and there is going to be a very difficult time justifying the extra $15K - $35K for the branded item, even if the aesthetic has an improved appeal.

I have heard a range of SS Amp's that have been from a Kit Design / EE - Designer - Builder compared to a Branded $50K Power Amp in a $200K system with the $50K Power Amp' in use.

I can assure that when the system value was reduced to near $150K through exchanging the resident $50K amp for other amp's significantly cheaper in cost, but from a very good design and build ethic, the overall system performance was not easily discerned for being compromised, and in the case of a Neurochrome Amp, the outcome was clearly showing the $50K amp had serious competition, where the only differences was a sonic signature from each.

I have heard the Neurochrome Amp's also show that an EAR Amplification does not separate from them in End Sound Impression able to be made.  

Very recently a report is being made of a very affordable SS Power Amp' that is a Kit Design and Turn Key, that is making a substantial impression when compared to Amp Designs produced by recognised guru's in their field of work. I will certainly take this info on board and become more investigative.         

its easier to vet the small scale manufacturers than the large scale ones. 

I would call and talk to someone at the low price manufacturer.  If you can’t talk to a real person run away.  If you can you’ll be able to tell whether theirs any substance there.  Then go with you gut, it’s usually right.