takodje srodan primerak - AD12100/M4 : This speaker from 1973 is the successor of the Philips AD1255M and AD1256M.Very high class sensitivity, 93 dB / W / m. The 12 inch wide chassis has a double cone and a ceramic magnet. The type AD12100 was in production between 1979 and 1985, and is intended for use in a 120 liter bass reflex cabinet. Besides the / M4 was also a / M8 delivered. The price was 127 Fl.A variant is the type / G, the speaker cone has a weighted, running through to 12 kHz and is designed for Guitar and PA applications.The / HP variant (/ HP4 and HP8) Fl originally cost 123.30, resonates at 60 Hz and a dissipated power of 50 watts. This execution continues until 10 kHz.The variant is called the woofer / W, it resonates at 19 Hz. Came with a voice coil of 4 or 8 ohms. The frequency range runs through to 1000 Hz. The woofer version is designed for a closed box of 60 liter, under this condition the power 60 watts. The price was 163.75 Fl.Another variant is the type / MFA, intended for use in an MFA box. This is a 4 ohm woofer with a resonance frequency of 26 Hz.