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Chile, Santiago
1 Level
681 Review
45 Karma

Review on πŸ”Š Nobsound KS25 Crystal Cube LED Music Audio Spectrum Analyzer Kit: Accurate Sound Level Display for Vacuum Tube Amplifier DIY (Assembled) by Robert Worlds

Revainrating 3 out of 5

Nice decoration for a computer desk. But be careful!

I added this to one of the outputs on my USB hub, which is also used for my external hard drives and SSDs for my iMac. Two weeks ago my SSD suddenly got damaged. I ended up having to buy a hard drive repair tool and didn't think too much about it. But sometimes my drives went offline and today my 3TB hard drive failed and I had to rebuild it (fortunately nothing is lost). Now I understand that this gadget has one drawback. There are no capacitors or filters in USB power, and you should avoid sharing them with anything critical to your data. You might get lucky, but it's better to run this from a separate power supply. If you want to share USB power with something important, you can try adding a capacitor, which should have been in this product from the start. I added a 220uF 16V electrolytic capacitor on the back between GND and VCC of the microphone jack.

Pros
  • 8 kinds of classic display modes: 1. Bar mode; 2. Columnar with peak hold mode; 3. Columnar with tip, tip movement upwards; 4. Mirror mode, from the center to both sides; 5. Single point mode; 6. Peak pull-up mode; 7. Single peak mode; 8. Mute when all lights are on (available for LED testing).
Cons
  • No

Comments (4)

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June 14, 2023
Forstrictly entertainment it’s passable. For anything else it’s a colorful trinket. Pass.
April 27, 2023
Should have put a active mic on it..hard to hook up ..
March 03, 2023
Directions are not very clear as to adjusting to flow with the music
January 16, 2023
i really like your product and as an electrician i hope the LEDs last a long time :) thank you