Cassette receiver amplifier [vintage]

The "Inter-M POP-30" refers to a specific model of Inter-M public address (PA) amplifier, a compact, 30-watt unit designed for commercial and institutional sound systems, featuring multiple inputs (mic, aux), tone controls, built-in chimes, and a cassette deck, known for reliability in schools, offices, or retail.

Key Features & Purpose:
30W Output: Delivers 30 watts of RMS power for modest sound distribution.
Multiple Inputs: Accepts signals from microphones (MIC 1-3), auxiliary sources (AUX), and a built-in cassette player (DECK).
Integrated Functions: Includes 4-tone chime, speaker selection, and tone control.
Applications: Ideal for paging, background music, and announcements in small to medium spaces.
Essentially, it's a versatile, all-in-one audio solution for basic PA needs.

I noticed that Tuner doesn't work :-(
I could not test the cassette player (I don't have any tapes with me).

Collection: Galway