Audiophilepure

https://www.innerfidelity.com/content/astell-kern-sr15-anorma-review

“If you’re looking for something pocket-friendly that can take advantage of digital audio in both a wireless and wired world and replace your mobile phone as your main music experience that does streaming services like TIDAL, Qobuz, Deezer or Spotify via wi-fi, has gobs of internal storage, can handle every file type imaginable, and won’t break the bank, then the Astell&Kern SR15 at $699 USD is a no-brainer. The increase in SQ over the iPhone/Lightning/Buetooth pairing is obvious, and the fact you don’t get interrupted by a call or text while listening is a huge bonus for me personally. When I’m listening to music, I’d rather not be distracted with social media, the Internet, etc. That said, the fact that the A&norma is a separate unit, it allows unhindered listening while you work on your laptop or scroll Instagram on your phone, so it’s a bit of a win-win from either angle. For the level of SQ, wired and wireless feature set, and future-fi that the SR15 has built-in at its price point, I can only highly recommend it.