I'm selling my like new Astell & Kern AK100 with the Red Wine Audio RWAK100 Modification. I have all original packaging and contents. This was cared for and kept in a pet/smoke/child free environment and probably listened to for less than 50 hours. This item is in perfect working/cosmetic condition and is as good as new, but better since it has the mod! I need money, or else I'd be enjoying this for years to come.
Info about the mod:
The RWAK100 is a modified version of the Astell & Kern AK100 digital audio player (DAP)
We achieve this by:
- Bypassing the 22-ohm resistors in the headphone output stage, which results in a < 1-ohm output impedance that can drive IEMs and headphones whose impedance is as low as 8-ohms
- Hardwiring the headphone output stage FETs directly to the pins of the headphone output jack to provide the shortest, cleanest signal path. This also bypasses the tiny circuit board traces and the header that connects the main board to the smaller headphone jack board.
The result is a very portable (smaller and lighter than an iPod) DAP that now has a clean, low-impedance headphone output stage. The RWAK100 can drive IEMs with ease, as well as most full-sized headphones to more-than-adequate volume levels. The RWAK100 unravels layers and layers of detail and nuances from your music, and is free of any audible background noise.