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A professional, hand-held, analogue-audio signal-analyser, with built-in microphone, balanced and unbalanced line inputs, 100 x 64 pixel back-lit LCD display and simple, menu, control buttons.

The display-screen shows menu options and measurement values, with either large-scale numerical read-out or graphic display (including frequency-response and oscilloscope). Auto-ranging algorithms provide fast, accurate readings, with a minimum of menu selections for rapid testing and analysis. A 3.5mm headphone jack-socket is also provided, for aural monitoring. Minilyser can be used with the NTI Audio Minirator or other signal sources, such as Canford “Quick Check” test media. Battery-powered (3 x AA dry or NiCd), with over 16 hours continuous use (typical) from alkaline batteries. A carrying pouch is also available.

Technical Specification:

Input connectors: Balanced XLR, unbalanced RCA (phono)
Frequency range: 20-20,000 Hz, resolution 0.1%
Level range (dBu or dBV): +20 to –95 dBu balanced; +14 to –95 dBu unbalanced
Level range (V RMS or V peak): 4 digits, max 7.75 V RMS (balanced input)
Resolution 0.1dB/±0.5%
PPM/VU range: Dual linear bar as PPM Type 1, IIA, Nordic, VU
Signal balance: Deviation from balance shown in % or dB (0 to –60)
Distortion range: –99.9 to 0dB THD, 10-20,000 Hz; residual THD+N <–85 dB(0.005%) at 0dBu, unweighted
Polarity function: Built-in microphone input
Oscilloscope: Auto-ranging, scaling and triggering
Filters: Unweighted; A and C weighting; high-pass 22, 60 or 400 Hz; band-pass 300-3,000 Hz
Dimensions: 163 x 86 x 45 (w x h x d ) mm
Weight: 300 g, including batteries

An upgrade kit is available to provide PC connectivity and data storage via USB for NTI Audio (formerly Neutrik) Minilyser and Digilyser. The kit includes a plug-in board, replacement battery covers, USB cable and software CD-ROM. See NTI AUDIO MINILINK.


The MiniSPL is a 1/2” omni-directional pre-polarized condenser microphone that can be used in conjunction with the Minilyser to form a comprehensive integrating sound level meter. It is battery powered.

Technical Specification:

Microphone type: 1/2”, omni-directional, pre-polarized condenser, free field transducer
Sensitivity: (20±2) mV/Pa, (-34±1) dBV/PA @ 1kHz, balanced out
Frequency response: 100Hz - 1250Hz ±1.5dB
20Hz - 20kHz ±3dB
Peak acoustic input: 130dB SPL @ 1kHz
Noise: 30 dB SPL, A-weighted
Output impedance: 200 ohm (XLR balanced)
Power supply: 1 x AA size 1.5V battery, lifetime typically 300 hours
No phantom power required, phantom power resistant
Dimensions: 22mm diam. x 180mm
Weight: 100g including battery
Ordering Note

Unless otherwise stated, all products are exclusive of calibration certificate(s). NTi ML1 Minilyser calibration certificates can be purchased optionally along with the product. Please ensure you add multiple calibration certificates if the system you are purchasing includes multiple products.

  Description Price £
ex. VAT
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NTI ML1 MINILYSER SIGNAL ANALYSER Analogue audio, without calibration certificate   Stock code: 25-422
Please login for stock availability and lead times.
NTI SOFT POUCH For ML1, DL1 or AL1   Stock code: 25-423
No longer manufactured. Unfortunately we are not currently able to offer an alternative.
NTI MINISPL MEASUREMENT MICROPHONE Without calibration certificate   Stock code: 25-424
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Please login for stock availability and lead times.
NTI AL1 ACOUSTILYZER AL1/ML1 Crossgrade firmware   Stock code: 25-398
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