Vibelink Wattage Query
- Thread starter Kirpo
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Aquaman
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Have fun:
www.audiosciencereview.com
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 $299 [original estimatews $400.]. I was relieved from the point of view of testing that is NOT a streaming product so no need to mess...
www.audiosciencereview.com
Hi, I’m unable to see where this review mentions ‘3 ohms’ also why does the amp have less output than what’s stated on documentation??Have fun:
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 $299 [original estimatews $400.]. I was relieved from the point of view of testing that is NOT a streaming product so no need to mess...
Peter
HansD-NL
Senior Member
A little more (but not much) than at 4ohm load is the short answer.
HansD-NL
Senior Member
Power measurements are done in 8 and 4 ohms and the difference between what WiiM says and the ASR measurements is because WiiM is a little optimistic in their specs (happens often in the audio world) A peak power figure mostly is measured at 1% distortion. What is the context of your question about the power of the amp?
dominikz
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From this measurement in the ASR review it appears that the Vibelink Amp can generate similar power into 4Ohm and 2Ohm loads, so 3Ohm should be similar as well:
Note that the practical difference in maximum sound pressure level at the listening position between a 150W and 200W amp would be only about 1dB SPL.
You need to double the power to get +3dB SPL (which would be a little louder), and you need 10 times the power to get +10dB SPL (which would be double as loud).
Truth to be told, this is not ideal territory for the Vibelink Amp, if this impedance dip is somewhere in the bass region. It's specified to be stable down to 2.66 Ω loads, so it will work reliably, but it's an edge case.
You might have noticed in the ASR review that the power output into low loads also starts to depend on the phase angle quite a bit. Unfortunately, WiiM only started to use a dual chip TPA3255 configuration with the Amp Ultra. Maybe something like the 3E AUDIO A7 with a 48 V 10 A PSU was the safer bet in your case ...
You might have noticed in the ASR review that the power output into low loads also starts to depend on the phase angle quite a bit. Unfortunately, WiiM only started to use a dual chip TPA3255 configuration with the Amp Ultra. Maybe something like the 3E AUDIO A7 with a 48 V 10 A PSU was the safer bet in your case ...
From this measurement in the ASR review it appears that the Vibelink Amp can generate similar power into 4Ohm and 2Ohm loads, so 3Ohm should be similar as well:
Note that the practical difference in maximum sound pressure level at the listening position between a 150W and 200W amp would be only about 1dB SPL.
You need to double the power to get +3dB SPL (which would be a little louder), and you need 10 times the power to get +10dB SPL (which would be double as loud).
Hey Harkpabt,
Thanks for your response can you advise who sells these amps please, I’m in Australia.
Peter
Aquaman
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I guess Aliexpress is your friend here.
I don't feel like a actively advertising competing brand's products here and I don't even know the available sales channels in Australia. But AliExpress, Audiophonics.fr and Amazon (in some countries) are the typical sources, indeed.
Make sure to evaluate all aspects of the products you consider. E.g., very few amplifiers in its price range can match the visuals of the WiiM Vibelink Amp and feature a built-in power supply, if these aspects are important to you.
Having said that, the A7 (and especially the A5, if slightly lower power output is sufficient) are pretty much the benchmark for TI based chip amplifiers. The cheaper A7se and A5se suffer from the same limitations into low loads as the Vibelink Amp.
Make sure to evaluate all aspects of the products you consider. E.g., very few amplifiers in its price range can match the visuals of the WiiM Vibelink Amp and feature a built-in power supply, if these aspects are important to you.
Having said that, the A7 (and especially the A5, if slightly lower power output is sufficient) are pretty much the benchmark for TI based chip amplifiers. The cheaper A7se and A5se suffer from the same limitations into low loads as the Vibelink Amp.
dominikz
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Perhaps the WiiM Amp Ultra is worth a look as well since it is built with 2xTPA3255 chips and can therefore drive 2 Ohm loads.
It is an all-in-one, however, so not sure if it fits your use case.
