3A : Art et Acoustique Appliquée ANDANTE LINÉAIRE de CONTROLE V2 (Version 2), 1979, made in France [Serial #180379, 146284]
Link: https://sgerasimuk.blogspot.com.by/2015/05/3a-art-et-acoustique-appliquee-andante.html
+
EMB ELECTROACOUSTIQUE MICHEL BIGOT Stereo Power Amplifier P300 + Preamplifier P5S, made in France
Link: https://sgerasimuk.blogspot.com.by/2016/06/emb-electroacoustique-michel-bigot.html
3A Specification:
• Input impedance : 8 Ω
• Rated power : 50 W
• Built-in amplifier power : 120 W
• Sensitivity (for 1 W at 1 m) : 90 (93!!) dB
• Amplitude frequency response curve : 25 to 35 000 Hz
• Bandwidth (±2 dB) : 35 to 30 000 Hz
• Cutoff frequencies : 400 – 5000 Hz
