- Thread Starter
- #81
No effect other than power loss which is reflected in my testing.What would be the effect of the 4 ohm output impedance on HE400SE headphones (25 ohm impedance, very low but also entirely flat)?
No effect other than power loss which is reflected in my testing.What would be the effect of the 4 ohm output impedance on HE400SE headphones (25 ohm impedance, very low but also entirely flat)?
As for @solderdude measurements, absolutely nothing.What would be the effect of the 4 ohm output impedance on HE400SE headphones (25 ohm impedance, very low but also entirely flat)?
Ok, that might be a nice solution if you are on the go. But this device is, at least in my eyes, too big and clumsy to be comfortably carried around. And if I am using it at my desk, why should I use a power bank if I can just have gear using a plug?I'm using this Y cable for a USB device. On one side I have power, I use a very normal 5V power bank and on the other the phone.
Don't take it as a scientific answer: in fact, maybe someone can be more explanatory. or even prove its ineffectiveness.Ok, that might be a nice solution if you are on the go. But this device is, at least in my eyes, too big and clumsy to be comfortably carried around. And if I am using it at my desk, why should I use a power bank if I can just have gear using a plug?
Thanks chiefIt's an entirely different device -- the SK01 is a preamp/EQ/headphone amp box (no DAC) that's battery powered (with only charging via its USB C receptacle), the SK02 is a DAC/headphone amp (no EQ) box that's powered via USB. The form factor is pretty much all the two devices have in common.
Please, no. You may consult the measurements and tests of a bunch of power conditioners and the like here on ASR. There is simply no evidence for any effect of the source power to sound.Don't take it as a scientific answer: in fact, maybe someone can be more explanatory. or even prove its ineffectiveness.
I have read from many places, even with serious comparisons, that DC power is very good for these devices.
It would improve the silence and the bass.
But I repeat, I can't give you a scientific answer, or measurements.
I tried it just out of curiosity, the cable cost a few euros and the power bank too...also the phone practically doesn't run out of battery!
I see this everywhere on marketing of chinese audio products, maybe a common glitch of automatic translators CHN-ENalso funny to read sound is masterfully restored instead of reproduced
Hehe... If you think that is amusing the Japenglish would amaze and entertain you as you use some of the best technical literature and schematics ever made... There is such a contrast to the funny terminology Japenglish used and the sophistication of the awesome service literature from Japan.I see this everywhere on marketing of chinese audio products, maybe a common glitch of automatic translators CHN-EN
Local reviewer here ran a noise signal through the little DAC and got worrisome results. I don't know how to properly interpret it, maybe it is due to the rising THD up the high frequencies shown here as well?
Other than that, the high gain power max was 40% behind spec, but should be fine for class and price. In this sense, I must admit, this device's feature set astonishes me for the price. Not mentioned here in the review is it's DDC capability: it's aux out doubles as spdif out. Maybe you could measure it too @amirm ?
I know it well, as a former anime fansubber I encountered many funny examples back in the days.Hehe... If you think that is amusing the Japenglish would amaze and entertain you as you use some of the best technical literature and schematics ever made... There is such a contrast to the funny terminology Japenglish used and the sophistication of the awesome service literature from Japan.
Thank you for your corrections. We'll revise them shortly.@Fosi Audio
specs say 1100mW in 32 ohm... why not specify it as others do... 2x550mW in 32ohm (balanced)
of course 1100mW looks more impressive on a spec sheet.
The Ultra-Low Noise spec is funny.. it states it in micro Farad instead on micro Volt (so not μF but μV)
also funny to read sound is masterfully restored instead of reproduced
Here's a better picture, y axis is SPL (10 dB delta) and x axis is frequency up till 22khz.Not sure what we are looking at here - I can't read what the axes are - but it looks pretty bad.
I've scanned the thread to see if anyone else has commented and I don't see anything.
Do you have any more info or can anyone else shed some light on what this is showing?
Your valid post may have just caused a copy-editor's job.@Fosi Audio
specs say 1100mW in 32 ohm... why not specify it as others do... 2x550mW in 32ohm (balanced)
of course 1100mW looks more impressive on a spec sheet.
The Ultra-Low Noise spec is funny.. it states it in micro Farad instead on micro Volt (so not μF but μV)
also funny to read sound is masterfully restored instead of reproduced
Your valid post may have just caused a copy-editor's job.
Can someone please re-translate what a "Ring Cow" is and how it came about?
View attachment 356707
I am not a native English speaker myself, but I always wonder why some companies don't get a a native speaker to proof-read. It's not a million pages, just a dozen per product. Won't cost a fortune. Even a free product would do Would look much more proferssional without a Ring Cowalso funny to read sound is masterfully restored instead of reproduced
I dont think so, the headphone can work, but not the microphone. Fosi has a K5 PRO which can support microphone.I have a Sennheiser momentum 2, which has an integrated microphone.
Would the Microphone still work when connected to this amp/dac?