Thanks!Yes, but I can see it on both units.
Thanks!Yes, but I can see it on both units.
My serial # starts P1TF235005xxx.Looks like date/time stamp indeed, but I'm not convinced that this a production date. For example it doesn't follow the week number in the serial number.
"uboot_verinfo" for my 2 units is week before the week from the serial number.My serial # starts P1TF235005xxx.
And the 50th work week would match my "uboot_verinfo": "231211.095208"
But I agree it is still probably not a production timestamp. The binary build date seems more likely. It could just be coincidence that my dates aligns or maybe they need to build a new binary when the line switches over for each production run.
My unit has no class II power supply mark, the packaging has colourful music service icons, but the RCA inputs are as your new unit.A new unit is with me. Because new device is too cold to be powered, I can focus on external differences. Both units are almost undistinguishable.
One difference is reversed channels on RCA inputs. Second one is a class II power supply mark printed on the bottom.
I've seen units with reversed RCA plugs in some recent YouTube movies, so this change was probably applied in the meantime.
There are also subtle differences between outside boxes, like the mentioned class II mark. Another one are black and white icons of the music services vs colorful ones for the box of old unit.
Different combinations are possible obviously. What about PCB_version of your Amp?My unit has no class II power supply mark, the packaging has colourful music service icons, but the RCA inputs are as your new unit.
EDIT: my unit makes only the faintest of pulsing noises when my ear is within a couple of inches from it.
I will need to open up the case. It’s bed time now in the UK.Different combinations are possible obviously. What about PCB_version of your Amp?
No need for that. Just look what your Amp reports when you callI will need to open up the case. It’s bed time now in the UK.
Yes, sure.Does it have CE marking?
measuring and creating a thread of an "all in one" amplifier, its inputs, its outputs etc. is much heavier (especially since this is a repeat) and technic than simple DAC sources etc. so good luck... ;-)A new unit is with me. Because new device is too cold to be powered, I can focus on external differences. Both units are almost undistinguishable.
One difference is reversed channels on RCA inputs. Second one is a class II power supply mark printed on the bottom.
I've seen units with reversed RCA plugs in some recent YouTube movies, so this change was probably applied in the meantime.
There are also subtle differences between outside boxes, like the mentioned class II mark. Another one are black and white icons of the music services vs colorful ones for the box of old unit.
First things first, as the full set of measurements and tests takes a lot of time, I will verify known issues at the very beginning.
PSU noise - absent, it's (almost) deadly silent. I can hear something only when my ear touches the chassis directly. Well, I know it could be pretty risky idea...
PCB_version - 5.
HF switching signal on sub out - absent.
Low frequencies / multitone bad performance - seems to be greatly improved in my quick and dirty measurements. I will provide more details tomorrow.
Stay tuned.
You may have mentioned this in previous posts, so forgive me if I missed this, but are these comparisons with original and new units running same updated firmware i.e just comparing hardware difference?Of course it's not near perfect, it's not a Purifi class amp. But so far it measures in accordance with my expectations without flaws I've seen previously.
And notice that I've no idea if my unit is like every ver 5 unit, or maybe it's different.
Could you also post your results in the Wiim Amp Thread on ASR? I guess a lot of people there might be interested in the new measurements.A new unit is with me. Because new device is too cold to be powered, I can focus on external differences. Both units are almost undistinguishable.
One difference is reversed channels on RCA inputs. Second one is a class II power supply mark printed on the bottom.
I've seen units with reversed RCA plugs in some recent YouTube movies, so this change was probably applied in the meantime.
There are also subtle differences between outside boxes, like the mentioned class II mark. Another one are black and white icons of the music services vs colorful ones for the box of old unit.
First things first, as the full set of measurements and tests takes a lot of time, I will verify known issues at the very beginning.
PSU noise - absent, it's (almost) deadly silent. I can hear something only when my ear touches the chassis directly. Well, I know it could be pretty risky idea...
PCB_version - 5.
HF switching signal on sub out - absent.
Low frequencies / multitone bad performance - seems to be greatly improved in my quick and dirty measurements. I will provide more details tomorrow.
SMPTE, 5W:
View attachment 4658
Multitone, 5W:
View attachment 4659
Differences are huge.
Stay tuned.