Interested in reviews of Koss VC20 Volume Control (24 month warranty)? It got 4.6 out of 5 stars from our customers. Find specific customer reviews of Koss VC20 Volume Control (24 month warranty) below. We will appreciate if you also share your experiences with Koss VC20 Volume Control (24 month warranty) after purchasing.
Rated 21/02/2026, variant Koss VC20 Volume Control (24 month warranty)
Verified purchase
It's working exactly as it should. Of course it can't amplify sound, but nobody can expect that from a passive component without power supply. I don't understand how anyone can take stars off for this. I was surprised by the relatively high impedance of 1 kOhm at minimum volume, which could probably annoy some people if the device detects the headphone connection by impedance/resistance and not physically in the connector, but then again, the divider probably could not reasonably do otherwise, unless the maximum volume is to be reduced. At maximum volume I measured an impedance of about 4 Ohms above the headphone impedance. I've used it to remove noise on very sensitive headphones - my output has constant noise that doesn't change with volume, and on my sensitive headphones I was at about 20% volume. With this "attenuator" I lower the sensitivity of the headphones so that I can't hear the noise, and use the volume on the source to bring the volume to the original subjective level (so now I'm at 60-70% of the source volume setting).
Great, it works as it should
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Jaroslav, Černá Hora
Rated 02/08/2024, variant Koss VC20 Volume Control (24 month warranty)
Verified purchase
controls work without problems and a great addition to headphones without volume controls
long cable
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Aleš, Pardubice
Rated 06/01/2024, variant Koss VC20 Volume Control (24 month warranty)
Verified purchase
I use it as headphone output to TV (with converter to analog). It's working great. Some people may not like the fact that the device only allows you to turn the sound down. But in my opinion this is an unimportant detail, as the input device usually has sufficient volume available.
simple operation
smooth operation
it is perhaps a pity that the sound cannot be amplified above 100%
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Anonymous customer
Rated 26/10/2022, variant Koss VC20 Volume Control (24 month warranty)
Verified purchase
Great, he's doing his job.
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Pavel, Klášterec nad Ohří
Rated 28/08/2020, variant Koss VC20 Volume Control (24 month warranty)
Verified purchase
Fits headphones that do not have a volume converter
The sound transmitted through this converter cannot be boosted. You can only adjust the volume downwards. Thus, there is no point in buying this product.
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Jakub, Frýdek-Místek
Rated 09/06/2017, variant Koss VC20 Volume Control (24 month warranty)
Verified purchase
It does everything it's supposed to!
None
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Richard, České Budějovice
Rated 24/05/2017, variant Koss VC20 Volume Control (24 month warranty)
Verified purchase
Small, compact, handy.
Perfect function.
No
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Roman, Praha 10, Vršovice
Rated 02/11/2016, variant Koss VC20 Volume Control (24 month warranty)
Verified purchase
Excellent MP3/MP4 accessory for my iAudio 7.
No.
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Lucie, Potštát
Rated 23/05/2015, variant Koss VC20 Volume Control (24 month warranty)
Verified purchase
Controls super
poorly attached control
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Tomáš, Praha 9 - Vysočany
Rated 02/01/2015, variant Koss VC20 Volume Control (24 month warranty)
Verified purchase
A simple solution for a phone with a large volume step
Pleasant design
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