The LAL Nk2 is a compact audio analyser designed for development, testing and maintenance of professional and domestic audio equipment. It combines a low‑distortion signal generator, a six‑digit frequency counter and a versatile measuring system that can check signal levels, frequency response, noise, rumble, wow‑and‑flutter and distortion.
The manual covers first‑time setup, connection of the optional ST1 studio interface or MA2 Hi‑Fi interface, detailed procedures for generating signals, measuring various audio parameters, and routine maintenance such as battery operation, recalibration and circuit diagrams.
| Frequency range | 15 Hz – 150 kHz |
|---|---|
| Output level range | 0 V – 1 V (‑0 dBu to +2 dBu) |
| Maximum balanced output level | +26 dBm |
| Frequency counter resolution | 6‑digit display |
| Battery operation | Rechargeable nickel‑cadmium battery optional |
Turn the instrument off and use a screwdriver beneath the meter to zero it.
Set all toggle switches down, OUTPUT COARSE to 0 dB, OUTPUT FINE to MAX, FREQUENCY to 1 kHz, RANGE to ×100, FUNCTION to FLAT, INPUT COARSE to 0 dB, INPUT FINE to MAX, and DIST INPUT to READ OSC.
Yes, when the ST1 or MA2 interface is fitted the instrument can operate from 100‑120 V mains.