A
bookshelf-type 3-way speaker system that's all APM, with performance comparable
to floor-standing studio monitors. The flat and square woofer is driven by 4
independent voice coils with direct dual-surface drive for outstanding low
frequency response and resolution.
Maximum
power handling capacity of 200 W.
The Sony
APM-77 is the original "affordable" APM loudspeaker. It sported a
stark grey finish and was thus quite futuristic. However, as the 1980s turned
out to be far more conventional than expected, it is the later APM-77W (W for
Wood) that is well remembered. Unfortunately, wood or not, the APM-77 didn't
sell that well although it does provide a very balanced sound.
APM drivers
are made of an aluminium honeycomb mainframe with ultra-thin aluminium covers -
100x more rigid than paper cones. The japanese magazine Audio Accessory often
used Sony's APM loudspeakers for its reviews.
Specifications:
System: 3-way, Bass-reflex
Speakers:
Woofer
: 530 cm² APM
Midrange
: 27 cm² APM
Tweeter
: 7 cm² APM
Impedance: 6 Ω
Power
Handling Capacity [Nominal/Maximum] :
100 / 200 W
Sensitivity: 90 dB/W/m
Frequency
Range: 28 - 30,000 Hz
Dimensions
(W x H x D): 405 x 745 x 325 mm
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