Is shanling UA2 worth it?
The Shanling UA2 can push almost any headphone out there to an acceptable level especially if you use the balanced output. The single-ended side is not too shabby either. With efficient IEMs the bottom level of the volume was enough to reach loud volume levels.
How to charge Shanling UA5?
This battery charges itself automatically when you turn the Hybrid Power off. You also have the option to charge the battery with a wall adapter. The battery provides up to 6h of clean power, with a full charge. When the battery depletes, UA5 switches off the Hybrid Power mode and automatically enables charging.
Does Hidizs S9 Pro support MQA?
Inside the S9 PRO, there’s an ESS9038Q2M DAC chip that does PCM up to 32bit/768kHz, and DSD up to 512, but no MQA. Correspondingly, a logo indicator light on the outside panel shows the sample rate and file type employing six different colors: Yellow: DSD64/128. Purple: DSD256/512.