Yeah that's why I added you can pickup whatever that meets the spec.
I'll grab this:
https://www.idealpower.co.uk/products/15dys618-150120w-k/
Yeah that's why I added you can pickup whatever that meets the spec.
That looks pretty legit to me. Has double insulation, 1.2A 15V 2.1mm. I think this is good.
I haven't done testing but I'm pretty confident that it is.Hi @amirm , is the low output impedance (1 ohm measured in this review) across the full audio range of 20 Hz to 20 kHz?
I haven't done testing but I'm pretty confident that it is.
The capacitors at input are at 25v and all the regulators accept 28v. For safety let me try on my device.
The output of regular is fixed. Using high voltage makes not difference.Hi, did you end up trying a 25Vdc external power supply?
Actually the smps are double insulated so already no ground noise to pass through.
SMPS runs at very high frequency so not a problem. In fact, power bank also has smps in side to make sure the voltage is constant.But SMPS's can be sources of AC leakage current? A battery will not?
SMPS runs at very high frequency so not a problem.
In fact, power bank also has smps in side to make sure the voltage is constant.
Idk man. I never in my life have seen those. With dx3pro and stock smps, the mains noise is less than -134dbFS. FS = 10V.Sure they have switching regulators but they are immune from AC related issues, like leakage current 'loops', unlike SMPS's.
no,@JohnYang1997
I see the spec for DX3 Pro states compatibility with 16-300 ohms.
Would 450 ohm impedance headphones present any increase in measured distortion?
I dont know it for a fact, but im quite sure it just does pcm conversion and volume goes from there.Hi, does anyone know how DSD is handled with the headphone output of the DX3 Pro, with digital volume control?
Is DSD converted to PCM?
Maybe you know @amirm or if you have a Topping contact, can they clarify?
I would say 8ohm to no upper limit.@JohnYang1997
I see the spec for DX3 Pro states compatibility with 16-300 ohms.
Would 450 ohm impedance headphones present any increase in measured distortion?
SMPS runs at very high frequency so not a problem.