--- product_id: 61567865 title: "- Nobsound AK2515 Pro Audio Spectrum Analyzer with VFD Display, MIC Input & Advanced AGC - Precise Sound Level Meter for Musicians and Audio Enthusiasts" brand: "douk audio" price: "£53.69" currency: GBP in_stock: true reviews_count: 13 category: "Douk Audio" url: https://www.desertcart.co.uk/products/61567865-nobsound-ak2515-pro-audio-spectrum-analyzer-with-vfd-display-mic store_origin: GB region: United Kingdom --- # 25x15 VFD resolution 20Hz-20kHz frequency range Advanced AGC with 5 gain settings - Nobsound AK2515 Pro Audio Spectrum Analyzer with VFD Display, MIC Input & Advanced AGC - Precise Sound Level Meter for Musicians and Audio Enthusiasts **Brand:** douk audio **Price:** £53.69 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your sound game with precision and style — see what others only hear! ## Quick Answers - **What is this?** - Nobsound AK2515 Pro Audio Spectrum Analyzer with VFD Display, MIC Input & Advanced AGC - Precise Sound Level Meter for Musicians and Audio Enthusiasts by douk audio - **How much does it cost?** £53.69 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/61567865-nobsound-ak2515-pro-audio-spectrum-analyzer-with-vfd-display-mic) ## Best For - douk audio enthusiasts ## Why This Product - Trusted douk audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Visualizer:** Experience ultra-clear 25x15 VFD display for pinpoint frequency analysis. - • **Seamless Connectivity:** Plug in via MIC or AUX inputs for wired or wireless audio capture anytime. - • **Smart Noise Filtering:** Enhance clarity with advanced noise filtering and five amplification curve modes. - • **Pro-Level Frequency Sweep:** Cover the full audible spectrum from 20Hz to 20kHz with unmatched accuracy. - • **Customizable Audio Insights:** Switch between multiple display and gain modes tailored to your sound environment. ## Overview The Nobsound AK2515 Pro Audio Spectrum Analyzer features a high-resolution 25x15 VFD display and covers a wide 20Hz-20kHz frequency range. Equipped with advanced AGC and customizable display modes, it offers precise sound level metering for musicians and audio enthusiasts. Its versatile inputs, noise filtering, and adjustable settings make it a professional-grade tool for detailed audio analysis and visual feedback. ## Description Product description Nobsound AK2515 Pro Packing List 1× AK2515 Audio Spectrum Analyzer Board 1× USB Cable (Type-C) 1× 3.5mm Audio Cable 1× 1:2 3.5mm Cable 2× Acrylic Board 1 Set × Installation Screws VFD Audio Spectrum with MIC AK2515 Pro is a high-precision music spectrum analyzer with a 25x15 VFD display and a reliable clock function. It supports a broad frequency range and offers versatile input options. Advanced algorithms ensure clear audio visualization, and customizable settings with memory function cater to diverse user needs. High-Res VFD & Precise Clock 25x15 display for detailed spectrum analysis and a ±3.8ppm accurate clock. 20Hz-20kHz Frequency Support Dual 3.5mm AUX/MIC inputs for versatile audio input options. Customizable AGC & Dynamic Display Adjustable gain (-10 to 0dB) and display modes for various audio levels, with user-friendly interface and settings memory. Noise Filter & Efficient Analysis Modes Enhance sound clarity with noise filtering and switch between auto, sleep, spectrum, and clock modes for tailored audio analysis. Parameters Review: Great! - Great little miniature Spectrum Analyzer for audio. Some skills are needed to assemble because of the small parts, but it's not too difficult. There are display modes, but as other posters mentioned, the instructions are not useful; e.g., then "press the button," without specifying which button is meant, thus you can still refer to YouTube. It should also be noted that there is a microphone, so if there's no direct audio and the unit is on, you may see it respond to noise/and or voice. Recommended for audio geeks. Review: Fun Addition - Maybe there's a good way to use this is an actual calibrated analyzer but I'm just using it as a vibe piece. Has a bit of a vintage 90's appeal to it. Turns into a clock with calendar when not playing sound. The included booklet was fairly useless and the menu isn't intuitive but if you spend 10 minutes playing with the controls, you'll figure it out. Might try to build housing for it out of wood at some point but even as is it still looks pretty good on a shelf. ## Features - High-Resolution VFD Sound Level Meter: The AK2515 analyzer boasts a 25x15 resolution VFD display, ensuring accurate frequency band representation. It also includes a precise clock display, utilizing an SD3078 built-in crystal oscillator for ±3.8ppm accuracy, with a monthly error within 10 seconds, providing both functionality and style. - Versatile Frequency Range and Connectivity: Covering an extensive 20Hz-20kHz frequency sweep, the AK2515 offers high-precision frequency point testing. The 3.5mm AUX and MIC inputs support both wired and wireless connections, capturing every nuance in sound with ease. - Advanced AGC and Customizable Display Modes: The AK2515 features a special AGC and spectrum algorithm for optimal visual effects across a wide range of input signals. Switch between -10/-5/-3/-1/0dB gain settings and choose from three display modes (real output, smooth output I, smooth output II) to meet your specific needs. - Extensive Customization and Adjustable Settings: Tailor your experience with adjustable brightness, main light column falling speed, peak holding and falling speeds, and more. The AK2515 also supports date and time display, four font types, five music spectrum modes, five clock modes, and three level modes, all with a power-off memory function for convenience. - Noise Filtering and Multiple Modes: With five frequency division and amplification curve modes, the AK2515 enhances visual clarity and sound quality. The noise filtering function significantly improves sound clarity, making it suitable for various environments. Choose from auto, deep sleep, music spectrum, and clock display modes to optimize your audio analysis. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07BRSSR8H | | Best Sellers Rank | #16,188 in Electronics ( See Top 100 in Electronics ) #73 in Audio Component Amplifiers | | Brand | Douk Audio | | Brand Name | Douk Audio | | Customer Reviews | 4.4 out of 5 stars 272 Reviews | | Manufacturer | Nobsound | | Maximum Supply Voltage | 5 Volts (DC) | | Minimum Supply Voltage | 5 Volts (DC) | | Model | PJ454_US | | Mounting Type | Surface Mount | | Number of Channels | 15 | | Package Type Name | box | | Part Number | PJ454_US | | Specification Met | FCC | | Voltage | 38 Volts | ## Product Details - **Manufacturer:** Nobsound - **Maximum Supply Voltage:** 5 Volts (DC) - **Minimum Supply Voltage:** 5 Volts (DC) - **Mounting Type:** Surface Mount - **Voltage:** 38 Volts ## Images ![- Nobsound AK2515 Pro Audio Spectrum Analyzer with VFD Display, MIC Input & Advanced AGC - Precise Sound Level Meter for Musicians and Audio Enthusiasts - Image 1](https://m.media-amazon.com/images/I/81XOG0NpT7L.jpg) ![- Nobsound AK2515 Pro Audio Spectrum Analyzer with VFD Display, MIC Input & Advanced AGC - Precise Sound Level Meter for Musicians and Audio Enthusiasts - Image 2](https://m.media-amazon.com/images/I/81VJd5lbEAL.jpg) ![- Nobsound AK2515 Pro Audio Spectrum Analyzer with VFD Display, MIC Input & Advanced AGC - Precise Sound Level Meter for Musicians and Audio Enthusiasts - Image 3](https://m.media-amazon.com/images/I/71f15IFVrDL.jpg) ![- Nobsound AK2515 Pro Audio Spectrum Analyzer with VFD Display, MIC Input & Advanced AGC - Precise Sound Level Meter for Musicians and Audio Enthusiasts - Image 4](https://m.media-amazon.com/images/I/81WTlqBacYL.jpg) ![- Nobsound AK2515 Pro Audio Spectrum Analyzer with VFD Display, MIC Input & Advanced AGC - Precise Sound Level Meter for Musicians and Audio Enthusiasts - Image 5](https://m.media-amazon.com/images/I/81S+WXwiUIL.jpg) ## Questions & Answers **Q: Is this plug and play unit?** A: Hello. Yes. It is a finished product. You only need to connect signal input and power input. **Q: The clock is very annoying! Any way to disable it, so it only acts as a spectrum display? Thanks** A: Disconnect from headphone jack when not in use. **Q: when plugged in to a audio source, Ii have 2 or 3 bars flickering like there picking up some interference. any solutions?** A: Got something similar happening with many bands even when there is minimal audio input. The problem appears to be a poor connection between the 1/8" plug and the socket on the analyser. What I have done is remove the plug, clean it, re-insert it and check. If that doesn't immediately solve the issue, I twist the plug in the socket until I get it to a position that zero input registers nothing on the analyser. **Q: What are the unit's dimensions?** A: 7" x 2" x 1" ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great! *by C***O on April 6, 2026* Great little miniature Spectrum Analyzer for audio. Some skills are needed to assemble because of the small parts, but it's not too difficult. There are display modes, but as other posters mentioned, the instructions are not useful; e.g., then "press the button," without specifying which button is meant, thus you can still refer to YouTube. It should also be noted that there is a microphone, so if there's no direct audio and the unit is on, you may see it respond to noise/and or voice. Recommended for audio geeks. ### ⭐⭐⭐⭐⭐ Fun Addition *by A***R on February 17, 2026* Maybe there's a good way to use this is an actual calibrated analyzer but I'm just using it as a vibe piece. Has a bit of a vintage 90's appeal to it. Turns into a clock with calendar when not playing sound. The included booklet was fairly useless and the menu isn't intuitive but if you spend 10 minutes playing with the controls, you'll figure it out. Might try to build housing for it out of wood at some point but even as is it still looks pretty good on a shelf. ### ⭐⭐⭐⭐ Works as advertised *by D***Y on November 27, 2025* Works as advertised and I really like the rear facing USB C power connector in addition to the side jack that is not mentioned in the listing. ## Frequently Bought Together - Nobsound AK2515 Pro Audio Spectrum Analyzer with VFD Display, MIC Input & Advanced AGC - Precise Sound Level Meter for Musicians and Audio Enthusiasts - Amazon Basics 3.5mm Stereo Aux to 2 x RCA Audio Cable Adapters, 4 Feet/1.2 m, for Connecting Amplifiers, Speakers, with Gold-Plated Plugs, Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/61567865-nobsound-ak2515-pro-audio-spectrum-analyzer-with-vfd-display-mic](https://www.desertcart.co.uk/products/61567865-nobsound-ak2515-pro-audio-spectrum-analyzer-with-vfd-display-mic) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-19*