I don't think that's accurate... Of course it's possible I'm misremembering something from 35+ years ago, but there's no performance benefit for 14 bits over 16- either way, it's a 2-byte fetch, you don't save anything by leaving off two bits. So I'd almost believe it was 8-bit rather than 16, but the difference in sound quality is huge, and the Amigas had a 16-bit data bus so 16-bit fetches took no more effort than 8-bit. The sample rate I'd be more likely to believe I had wrong, but again, there are technical reasons for the 44.1 kHz rate that have to do with recording digital audio to videotape, so I could see it being half that, but not some random number. But again, huge sound quality difference between 44.1 and 22.05.

All that said, I'm not too familiar with the 1000, I had the 500 which was basically the same machine as the 2000 but in a more compact case. My uncle had a 1000, but he used it professionally so he wouldn't let me near it :D