Audio Database

612C Monitor

This is a monitor speaker system refined from the 612A system that has been used for many years.

The unit is equipped with 38 cm coaxial type unit.
The 612C Monitor uses different units depending on the age. Initially we used 604-8G, in 1979 we used 604-8H, in 1981 we used 604-8KS.

The enclosure 612C for the enclosure.
In 612C, the bass reflex port is precisely adjusted to improve the low-frequency characteristics.

Model Rating
Method 2-Way, 1-Speaker, Bass Reflex System, Floor Type
Timing Initial Mid-term Late stage
Units used, etc. For all bands 38 cm coaxial type
38 cm coaxial type
38 cm coaxial type
Enclosure 612C
Impedance 8 Ω
Playback frequency band 20 Hz to 20 kHz
Output sound pressure level (new JIS) 104 dB (New JIS) 103 dB (New JIS)
Allowable input (continuous program) 40W 65W
Crossover frequency 1.5kHz
External dimensions Width 648x Height 749x Depth 508 mm
Weight 53.0kg 51.2kg 51.5kg