MISSION 70

Commentary

This bookshelf-type speaker system is highly regarded in various countries.

In the United Kingdom, he received a "Best Buy" for a Speaker Of The Ear and a Hi-Fi Choice. In France, he received a "Decibel de Noor" award. In Austria, he received the title of "Wunder pediatrics".

The design of MISSION70 seems to differ greatly depending on the age.
In the 1983 catalog, it is described as a newly developed 17.5 cm special cone type woofer in the low range and a 2.5 cm soft dome type tweeter in the high range. In the 1987 catalog, it is described as a 17.7 cm cone type woofer in the low range and a 1.9 cm polymer dome type tweeter in the high range. Plastiflex is used in the low range.
There are also differences in characteristics, crossover frequency, and weight.

The enclosure uses a mission-specific particle duffel board, and the box itself has a sandwich structure to disperse and reduce enclosure resonance.

The terminal part is designed to be connected by 4 mm plug or wire.

There are 2 color variations, black and walnut.

The front grille cannot be removed.

The speaker stand sold separately was compatible.

Model Rating

Method		2-way / 2-speaker / bookshelf type
Age		1983	1987
Units Used	Low band	17.5 cm cone type	17.7 cm cone type
	High pass	2.5 cm Dome Type	1.9 cm Dome Type
Frequency characteristic		40 Hz to 20 kHz 70 Hz to 20 kHz ± 3 dB	60 Hz to 20 kHz ± 3 dB
Impedance		8 Ω (nominal)	6 Ω (Rated)
Recommended amplifier output		20W ~ 75W/ch	20W ~ 60W/ch
Output sound pressure level		86dB/W/m(SPL)	90dB/2.83V/m
Crossover frequency		5.7kHz	3.4kHz
Terminal		4 mm Plug / Wire
Cabinet effective internal volume		12 liters
External dimensions		Width 210x Height 350x Depth 210 mm
Weight		8kg(shipping)	10kg
Sold Separately		Speaker Stand 901 (¥ 12,000, around 1987)