P&B. Equipamentos da marca Brüel & Kjaer sobre mesa, numerados de 1 a 2, 4 a 8. 1 - Power Amplifier type 2706; 2 - Reverberation Processor type 4422; 4 - Level Recordes type 2305; 5 - Real-time Analyzer type 3347/3348; 6 - Real time 1/3 octave Analyzer type 3347; 7 - Audio Frequency Spectometer type 2112; 8 - Random Noise Generator type 1402.
