Hi,
I've just discovered dongle dacs and they may be the perfect solution to what I am after, just a couple of questions and would appreciate any answers. Thanks
I have an old Redmi Note 5 mobile, which I will be upgrading to the note 9 which is being released this week. The problem I am trying to solve is the volume I am getting from my headphone jack on the phone is not loud, I am assuming the new phone will be somewhat similar. On top of this I would like a 'cleaner' sound, however I don't want to sacrifice too much battery life.
I know that the MEIZU has a vrms of 1.748 but I don't know if that would translate into a significantly louder sound on the kit I am using ? (below)
Phone audio review and Stats
https://www.gsmarena.com/xiaomi_redmi_5_plus-review-1713p3.php
Frequency response Noise level Dynamic range THD IMD + Noise Stereo crosstalk
+0.06, -0.02 -92.4 92.3 0.0023 0.025 -76.3
SoundMagic 10c
Impedance (ohm) - 16 Ω | Frequency response - 15-22kHz| Sensitivity - 100dB/mW
The other concern is battery drain; I know that depends on a number of factors such as type of earphones and volume etc, but in the review below, it suggests a battery drain of upto 20-25%, which seems quite high. I know it states that high impedance load drains battery quicker, but to be honest I'm not sure what that means for me - I only use budget type earphone, currently the SoundMagic 10c
5:00 onwards