We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular VFD spectrum analyzer with 25 by 15 display and Bluetooth 5.0

LORDWORLD

LORDWORLD AK2515 PRO V3 VFD Spectrum Analyzer 25x15 Bluetooth 5.0

SKU CH-JWJY-XMNH0

A 25×15 vacuum fluorescent display visualises audio across 20 Hz–20 kHz with Bluetooth 5.0, 3.5 mm AUX and mic inputs plus automatic gain control

  • Clear spectrum view with 25×15 VFD display
  • Accurate audio capture across 20 Hz to 20 kHz range
  • Wireless streaming via Bluetooth 5.0 input
  • Real-time automatic gain control balances visuals
  • Functions as precise clock when audio stops

VFD Spectrum Analyzer for Audiophiles

The LORDWORLD AK2515 PRO V3 is a 25×15 vacuum fluorescent display that visualises audio across a 20Hz–20kHz range. It functions as a real-time spectrum analyser and doubles as a clock when idle. The integrated noise filter removes hum so the bars reflect only the music.

Check Audio Sources and Power

Verify that your source can connect via 3.5 mm AUX, the built-in microphone or Bluetooth 5.0. The 3.5 mm jack also serves as an output when the unit receives audio wirelessly, turning the analyser into a Bluetooth receiver for your amplifier. Ensure a suitable USB power supply is available.

Build Quality and Daily Use

The high-resolution VFD panel offers seven brightness levels and remembers all settings after power-off. Adjustable peak-hold and fall speeds plus three display modes let you tailor the visual response. Compact connectors mean the unit sits neatly on a desk or shelf without cable strain.

Highlights

  • Clear spectrum view with 25×15 VFD display
  • Accurate audio capture across 20 Hz to 20 kHz range
  • Wireless streaming via Bluetooth 5.0 input
  • Real-time automatic gain control balances visuals
  • Functions as precise clock when audio stops

Specifications

BrandLORDWORLD

Questions about this item

What cables or accessories are included with the AK2515 PRO V3?

The unit includes a 3.5 mm AUX cable and a microphone; Bluetooth 5.0 allows wireless streaming without extra hardware.

Which version of the AK2515 PRO V3 should I choose for wireless use?

The V3 model adds Bluetooth 5.0 alongside the 3.5 mm AUX and mic inputs, so no separate version is needed for wireless playback.

What does the 25x15 VFD resolution mean for real-time spectrum viewing?

The 25 by 15 vacuum fluorescent display renders 20 Hz to 20 kHz across 25 bands with adjustable peak-hold and fall speeds for precise visual feedback.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.