![[Upgraded] VFD Audio Spectrum Analyzer Bluetooth 5.0 Receiver 3.5mm AUX Selector (Silver)](https://m.media-amazon.com/images/I/71+CwJWqKiL.jpg)

🎶 Elevate your audio game with retro-futuristic flair!
The [Upgraded] VFD Audio Spectrum Analyzer Bluetooth 5.0 Receiver combines a high-resolution vacuum fluorescent display with advanced audio input options including Bluetooth 5.0 and dual 3.5mm AUX ports. It features a precision RX8025T crystal oscillator clock, customizable visual effects, and remote control operation, all housed in a compact CNC-machined aluminum and acrylic case. Perfect for professionals seeking both style and technical accuracy in audio visualization and switching.


































| ASIN | B0BKQ1K551 |
| Best Sellers Rank | #218,496 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #55 in Spectrum Analyzers |
| Customer Reviews | 4.3 4.3 out of 5 stars (53) |
| Date First Available | October 27, 2022 |
| Item Weight | 1.21 pounds |
| Item model number | VFD253 |
| Manufacturer | Douk Audio |
| Product Dimensions | 2.95 x 7.24 x 2.6 inches |
K**X
ITEM FAILED AND NO RESPONSE FROM THE COMPANY.
Just like one of the reviewers who shared a video, this thing is great. He is right in saying the MIC alone function is horrible. Since I use my BT from my PC to send audio to my receiver, all I had to do was get a rca adapter to 1.5m stereo out to IN 1 or 2 of the spectrum analyzer. I plugged the rca side into my zone 2 pre out and the other end into the spectrum analyzer. then turn up the volume on zone 2 since most don't utilize zone 2. it works great. be sure when you receive this, it has the remote as it does simplify things when setting up. ****update**** 2-27-2025 the product is now failed and no longer powers on. I've tried to reach the company with no response. save your money and do not purchase this item. there is no product support. ****update*** 3-9-2025 after many days of no response I added the number on their web page to WhatsApp and reached out. Someone after a couple days responded but by this time I managed to get Amazon to refund the item and send the failed one back despite they charging me for a damaged item? Makes no sense. This company just sent out a replacement with out charging me. I appreciate their help and kindness to send a new one. I adjusted my review to 5 stars because they deserve it despite the initial no to slow response.
R**A
Looks nice with my black receiver
The Quality & Functionality is good but it doesn’t have some of the visuals from the older one & is missing the red lights on the bottom. Is easy to use & it gives you old school vibes when jamming your songs.👍🏼
D**N
Super cool!!!!
Easy to setup and it works like a champ! Now I can zone out on lights. The remote is nice otherwise it would be hard to operate.
D**B
Exactly what I was looking for!
Just what I was looking for, a graphic frequency display for my setup (this is daisy-chained between my Mac and my amplifier). The instruction manual is lacking, but it doesn't take long to figure things out (hint: use the remote control for everything). Once it's set up, you shouldn't have to touch it again.
P**S
Cool but could be better
Has a lot of settings to play with and overall I'm happy with it but there are a few simple things I thought would make it a bit better. 1. Option for 12hr time (24hr only from what i can tell) 2. Power supply can add a lot of noise to aux. For the price including a usb power supply should be obvious especially since using the wrong one can make the product seem broken. 3. The metal ends are nice but the plastic cover fits loosely making the product feel cheap. Some foam or silicone glue in the gaps would fix this. Overall as someone who has recently become obsessed with vfd displays this thing is really nice. Definitely have to read the instructions to set it up properly but once you do it's a cool desk toy.
M**J
Great nostalgia, brings back memories of my old Pioneer system!
I like the features and visuals. Good item. Not many to choose from in the market. This one is good on size and value. Doesn't take up too much desk space. I paired it with VU meter, shown on right side. Seller should add more similar projects, I would buy from again in a heartbeat. I do wish time could be shifted to 12 hr vs 24 hr. I would also like to buy other colors, amber would be nice. I don't mind the slightly confusing UI, I just set it and forget it. Overall very happy with product. Thank you.
J**S
Unsuable...
When I discovered this product I had high hopes that it would add a bit of a light show when playing my audio equipment. Unfortunately this may be one of the worst designed user interfaces i have ever come across. I have spent hours trying to understand how to program this spectrum analyzer and have come to the conclusion it is basically unusable as a spectrum analyzer. If you finally find a setting you like you will have no idea how to recreate it easily again. Unplugging and plugging back in seems to reset this box, and just when you may like what it is doing.....this thing's clock feature will flash and roll randomly. The deal breaker is the clock feature CANNOT be turned off. I thought I was buying a spectrum analyzer.....not a clock. Either mine is broken or it was designed horribly. It's a shame. If it was much easier to use and had a better UI this may have been a keeper. Also adding the option to change the display colors would add value to this item. There is a market for this company's products .....but they are going to have to put much more thought into designing them better. Another thought....can they make the print ANY more tiny in the direction manual they send. I had to take a photo with my phone and enlarge it to even begin to read and understand it. Jeeze ......
B**Q
Love it
Love it. The only issue is that the pads on the bottom falls off after a while for whatever reason, but it looks legit.
A**Y
Superb. One word. Got it for 8.2k
E**O
If you are a lover of music, this is a must add-on to your existing audio set-up. The 25 band audio spectrum analyzer is shipped along with user manual, warranty card, type-C USB cable for powering the unit and a remote control. AAA batteries for the remote control were not included. Just insert the AAA batteries in the remote control, power the unit with a good quality 5V 2A USB power supply and an audio patch cable and you are ready to go. Excellent visual experience of the frequency response of the audio signal. Added benefit is the BLUETOOTH 5.0 feature which makes your audio set-up wireless to connect to portable devices like Laptops, mobile phones and PC's. The received BLUETOOTH audio quality is excellent as it uses the latest BLUETOOTH 5.0 protocol. It can be also used as an extremely accurate digital clock when you are not listening to music. The product was very well packed. Extremely satisfied with the quality and build of the product. Go for it.
C**G
Pretty nifty. Looks good.
Trustpilot
1 month ago
2 weeks ago