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Compact black box with a glowing green VFD grid display, front-panel 3.5 mm AUX and MIC jacks, and a small control knob

LORDWORLD

LORDWORLD AK2515 Pro Audio Spectrum Analyzer VFD Display MIC Input AGC

SKU CH-S2XG-M4VX0

A 25×15 VFD spectrum analyzer covering 20 Hz–20 kHz with 3.5 mm AUX and MIC inputs, adjustable AGC gain, and multiple display modes

  • Precise sound-level metering with 25x15 VFD resolution
  • Accurate timekeeping via SD3078 crystal at ±3.8ppm
  • Full-range analysis from 20Hz to 20kHz
  • Flexible input through 3.5mm AUX and MIC ports
  • Advanced AGC with selectable gain and display modes

High-Resolution VFD Display

The LORDWORLD AK2515 Pro Audio Spectrum Analyzer features a 25x15 resolution VFD display that provides accurate frequency band representation. A built-in SD3078 crystal oscillator delivers precise clock accuracy of ±3.8ppm, keeping monthly error within 10 seconds. This unit serves musicians and audio enthusiasts who need visual sound level monitoring with reliable timekeeping.

3.5mm AUX and MIC Connectivity

The analyzer covers a 20Hz-20kHz frequency sweep for high-precision testing across the audible range. Both 3.5mm AUX and MIC inputs accept wired or wireless sources, allowing flexible signal capture for live or studio use. It integrates into a setup by connecting directly to audio sources without requiring additional interfaces or specific amplification stages.

Adjustable Gain and Display Modes

Five selectable gain settings from -10dB to 0dB adapt the visual response to varying input levels, replacing fixed-sensitivity meters that clip or under-represent signals. Three display modes and five spectrum modes let users match the output to specific monitoring preferences. Builders who need more than two input channels or automated logging should consider other instruments.

Highlights

  • Precise sound-level metering with 25x15 VFD resolution
  • Accurate timekeeping via SD3078 crystal at ±3.8ppm
  • Full-range analysis from 20Hz to 20kHz
  • Flexible input through 3.5mm AUX and MIC ports
  • Advanced AGC with selectable gain and display modes

Specifications

BrandLORDWORLD

Questions about this item

What is the first limit the VFD display reaches during continuous operation?

The 25x15 resolution VFD display has a fixed 25 columns by 15 rows grid, so the visual limit is the number of frequency bands that fit in that matrix.

How much heat or noise does the AK2515 produce when running all day?

The unit has no fan or moving parts, so it runs silently and generates only minimal warmth from the VFD and clock circuitry.

Which audio source must I already have to feed the MIC input?

You need a microphone or line-level device with a 3.5 mm plug to connect to the MIC or AUX jack.

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