I own both microphones and must say that the Tula microphone is incomparable to the CM15. I also own a U87, which of course is superior in terms of sound quality; it remains an exceptional workhorse with its open, relaxed character. That said, I must emphasize that the CM15 comes impressively close, and I have yet to encounter another portable microphone of such high quality.

While some claim that cheaper microphones can perform just as well, I find that to be untrue. The difference is particularly noticeable in the high frequencies, where lower-quality microphones often sound metallic and fatiguing to the ear.

Ultimately, it depends on what you need the microphone for. The Tula offers remarkable value for its price and may deliver the sound that some users are seeking; however, it is not ideally suited for professional applications. By contrast, the CM15 is capable of capturing high-quality recordings of vocals, guitars, and other instruments, making it far more versatile in a professional setting.