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Elephant ear-shaped loudspeaker JA-6001

Elephant ear-shaped loudspeaker JA-6001; Yamaha Co.; (ID = 1724374) Speaker-P Elephant ear-shaped loudspeaker JA-6001; Yamaha Co.; (ID = 1724375) Speaker-P
Elephant ear-shaped loudspeaker JA-6001; Yamaha Co.; (ID = 1724941) Speaker-P
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Elephant ear-shaped loudspeaker JA-6001; Yamaha Co.; (ID = 1724374) Speaker-P
Yamaha Co.;: Elephant ear-shaped loudspeaker JA-6001 [Speaker-P] ID = 1724374 930x401
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For model Elephant ear-shaped loudspeaker JA-6001, Yamaha Co.; Hamamatsu:
This is an astonishing giant loudspeaker; compare with the two 12” and 15” diameter loudspeakers.
Country:  Japan
Manufacturer / Brand:  Yamaha Co.; Hamamatsu
alternative name
Nippon Gakki
Year: 1970 ?? Category: Loudspeaker, headphone or earphone
Wave bands - without
Power type and voltage No Power needed
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
Power out 25 W (unknown quality)
from Model: Elephant ear-shaped loudspeaker JA-6001 - Yamaha Co.; Hamamatsu
Material Various materials
Shape Chassis only or for «building in»
Dimensions (WHD) 880 x 640 x 180 mm / 34.6 x 25.2 x 7.1 inch

These big elephant ear shaped loudspekaers were initially used for Yamaha Electones and for (bass) guitar amplifiers. Some loudspeaker makers (e.g. TEAC) used the unit as bass driver (up to 5 kHz), complemented with mid range and high frequency range loudspeakers.

The unit is very efficient especially for ultra low bass sounds and has a robust aluminium diecast frame. It uses a strong permanent magnet (Yamaha patented). The voice coil has a diameter of 66 mm and an impedance of 8 ohms and is coupled to the big diaphragm made from pressed styrene foam.

Net weight (2.2 lb = 1 kg) 8 kg / 17 lb 9.9 oz (17.621 lb)

Model page created by Moisés Piedade. See "Data change" for further contributors.

All listed radios etc. from Yamaha Co.; Hamamatsu
Here you find 748 models, 683 with images and 374 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.