Can't tell...
But I can give you an exampleof the many problems ancountered with SD mics: would you consider buying an ADK SD mic if it was priced at over 500? When you can buy a pair MK012, a used 184, a refurbished 451, a Josephson series 4 etc for the same amount? If it was GREAT you probably would. But we MUST make the mic affordable or it won't sell. Selling ie. 5 units a month is unfortunately not acceptable, or the profit margin would have to be huge to make up for the low sales figure. Know what I mean? Like, Soundelux mics are more expensive than many brands, but they're beautiful and you know you have a quality piece of kit when you hold one.
So they're better; they cost more to manufacture; so they sell less than, say, MXL (I'm just comparing sales figures here, nothing more) mics; not only do Soundelux have to pay more $$$ to put a similar product on the market, but they have to make more profit on each sale to stay in business. I know it sucks, but that's how it is. Take those THE mics, they're great but not exactly selling like hot cakes.
Believe me, it's not easy coming up with a product that "puhses all the right buttons"!!!
Of course we've considered and are still considering other sources for capsules, amongst other things, but these days profit margins are paper-thin; ans since we're very reluctant to sell crap... we need to find an affordable small capsule. If other brands are OK with the curent SD capsule production from Chian, fine, but after the V and H it's hard for ADK to sell a product that's obviously so inferior. And sure, most chinese SD mics are fine for drums etc... But when I compare and find that my 30 year old mics are ie. 6 dBs quieter and sound MUCH better, I'm not too happy!
JP