This is a description from the Soviet/ American audio system website.

Aiwa RV-1a NHK Ribbon Microphone

The RV-1a is an NHK-spec'd Aiwa VM17, which was Japan's far superior version of the RCA 77D. NHK was the main broadcasting station in Japan and had microphones custom-made to their specifications, much like RTF (French Radio and Television Broadcasting) and the BBC.

NHK ribbon models use better output transformers and components, and generally have a noticeably improved frequency response - which is saying a lot, because the Aiwa VM17 is one of the best ribbon mics we've ever heard, far outperforming the RCA 77D/DX. As with most Japanese ribbons, it has a 5-position low roll-off switch at the bottom of the mic.

It is estimated that only 600-700 of these microphones were manufactured, and this one is number 23. As with all 77D-style microphones, this mic sounds best in its unobstructed bidirectional pickup pattern, with full but balanced low-end, a meaty midrange, and remarkably smooth top-end.

This mic has some age-related finish wear, scratches, dents, and discoloration.

It sounds loud and clear with no need for a cloud-lifter.

See photos for details.

Shipping cost and Tariffs are included in the price.

If you are visiting Japan, free pickup is available with a $400. discount!

2 are available for sale