Its seems clear to me that the unit probably uses two mono tpa3251 or two tpa3255 in PBTL with PFFB .
we had understood for a while that the classic approach would be used in affordable, from the amp pro amplification side...Its seems clear to me that the unit probably uses two mono tpa3251 or two tpa3255 in PBTL with PFFB .
This makes it drive lower impedances in a better way, giving more power. The 3251 has slightly lower distortion than 3255.
This is the lowest IM distortion at 19-20 kHz I have seen with tpa 3251/3255 with PFFB in PBTL.
The volume control is probably to flirt with audiophiles who dont own a WiiM streamer.
www.audiosciencereview.com
and for completedASR review ..
WiiM Vibelink Amp Review
This is a review and detailed measurements of the WiiM Vibelink stereo class D amplifier with DAC. It was sent to me by the company and I believe will cost US $400. I was relieved from the point of view of testing that is NOT a streaming product so no need to mess with apps and such to use it...
audiosciencereview.com
ASR review ..
WiiM Vibelink Amp Review
This is a review and detailed measurements of the WiiM Vibelink stereo class D amplifier with DAC. It was sent to me by the company and I believe will cost US $400. I was relieved from the point of view of testing that is NOT a streaming product so no need to mess with apps and such to use it...
Inconsistent measurement conditions by Amir, as far as I can tell.
Amir says, probably not. The SINAD value is spoiled by a ground loop in his case.
telemike agrees with you.
Consequentially, I might be willing to lend the WiiM Vibelink Amp my ear (or both of them) before coming to a final judgement. the "" ground loop "" story is not trivial and must be verified...(except to consider that only the isolated toslink input have an interest)telemike agrees with you.
The SINAD figures might have to be taken with a grain of salt. But the fact that Amir had a ground loop issue with his AP analyser is not helpful, at least.
I must admit that I enjoy my 3e Audio A5 more than my V3 Monos. That's my bashful way of saying that I thinks that there's a difference in sound quality, when objectively many would declare the differences as beyond the threshold of perceivability. That puts me in a camp I'm usually not associated with.
The nice looks and the comfort of an integrated power supply surely make it attractive, at least to me.
Exactly my thoughts... @WiiM Team why not a "Vibelink" & a "Vibelink+" (with the preamp section and DAC)?
Takeaways for me:
1 - It measures similarly, but not quite as good as my current Topping PA5 II. **
2 - However, it has more power (170W vs 120W) …
3 - …which I don't need.
4 - The WiiM costs a lot more than the Topping. At the moment it's twice as much, and even if the price drops from £400 to £300, that's 50% more than the Topping.
5 - I don't need the DAC (what is it for?).
6 - It'd look nice in a stack with my Ultra...
7 - …but strangely, seeing pics of both together, not as nice as I'd have thought, for some reason. I think the Ultra's black glass front looks classy, whilst the VibeLink's grey just looks a bit cheap and plasticky (sorry). The IOM looks far better.
8 - Lots of discussion as to whether it's better to use a digital volume control on your front end, or analogue on your power amp - here, paired with the Ultra, you get the choice of both.
Overall, if I didn't already have an excellent power amp, and were buying the Ultra fresh and wanting to see if I could find something to match, I'd certainly consider it, but I'd probably be more swayed by the Topping's much cheaper price and slightly better performance, unless I needed a lot more power.
All-in-all, better than I expected, but for me it's close but no cigar. This time.
** Topping SINAD 105 dB, WiiM 100dB - Topping SNR 107 dB at 5W/120.5 dB bits at full power, WiiM 102 dB at 5W/118 dB bits at full power, Topping MultiTone distortion 17-20 bits, WiiM 16-17 bits
.If you only had a Mini or a Pro/Plus and wanted an amp that had a better DAC (which I guess this'll have), the vibelink could be a good fit...5 - I don't need the DAC (what is it for?).
