Any alternatives to Astell & Kern DAP's?


I'm looking at the A&K AK 100 -2 but at $900 (cheapest I could find on the internet) it caused me to pause. Is there any alternative that would be less expensive? The Ibasso DX90 is something I would consider but the reviews I've read are mixed. Would appreciate any feedback you could give me. thanks.
russellrcncom
I prefer the sound quality of the latest iPod Touch 64gb model. Plus it can do Pandora, Spotify and Tidal. For travel I like a device that can fit in my shirt pocket. Have heard good things about the Sony NWZ A17.
Present: 7 Gen iPod 160 gb + Fiio Andes (E07K) + Kef M500. Plenty of detail, space and very good bass.

Future: Lenovo Vibe Shot + Oppo HA-2 + Kef M500.
I'm leaning towards a fiio x5 which supposedly supports24 bit /192. It can be had for about $300 new or $250 used.....stay tuned.