Yamaha NS 370 3-way Hi Fi Speaker Pair

These used Yamaha speakers have been tested by our shop and are in good overall condition with all functions working. The speakers sound great! 

The front of each speaker features a Yamaha JA-3053 woofer with JA-0506B tweeter, and back side features a JA-6002 flat speaker with crossover. The back panel has banana/bare wire connectors and a three-way tone knob (one is missing the actual knob but still functions fine).

Made in the 1970s in Japan
Cabinets measure 43" long x 30" high x 14" deep each

Please contact us for a freight shipping quote, as these speakers cannot ship via our standard shipping. 

From Yamaha (this was translated from Japanese using Google translate, but the specifications are all accurate):

Floor type speaker system equipped with special large diaphragm NS unit type.

Region is carried in low-JA-6002 NS-type diaphragm woofer unit large 570 × 820mm.

Vibration area has a large rigidity, the diaphragm by a special molding has been finished to a high durability without influence of humidity.

Edgewise to the voice coil of large diameter aluminum wire ribbon 66φ is employed and the magnet are using YM-5S anisotropic magnet and manufacturing methods for ultra-zone melting alloy technology patent was born by Yamaha.

In the mid range is equipped with a JA-3053 of squawker 30cm cone type.

Paper cone in a unit that has been developed for large speakers, has been molded to scroll through the selected materials, wool has been formulated for the attenuation of high-frequency, cross-sectional shape special for reproducing rich midrange.

Is carried in the high region of the JA-0506B horn type tweeter.

30μ special hard duralumin foil thickness is used, having a tangential structure corrugation, the diaphragm is raised edge strength.

With a magnet 40φ 24,600 maxwell 17,000 gauss 23φ edgewise voice coil with aluminum ribbon line, air-gap flux density, the total magnetic flux, magnetic circuit has achieved high efficiency of 110dB also.

To avoid distortion by the network, use the air-core coil to coil, with lower DC resistance adopted the formal line of 0.8φ, we are to reduce and prevent power loss characteristic change.

In addition, the capacitor using the MP capacitor.

Enclosure serves as stately finish to adopt a relaxed classic design style, Yamaha's woodwork was alive.

Method: Open back floor type system 3 ways, 3 speakers
Use unit
For low-pass: type NS (JA-6002)
For mid ranges: 30cm cone type (JA-3053)
For high regions: Horn type (JA-0506B)
Play frequency band: 45Hz ~ 20000Hz
Minimum resonance frequency (fo): 45Hz
Impedance: 8ohm
Output sound pressure level: (JIS new) 102dB/W/m
Maximum permissible input: 90W
Crossover frequency: 200Hz, 5kHz
Network:
6dB/oct: low-pass
6dB/oct: mid-range
12dB/oct: high-frequency
Physical Dimensions: 1080 × 755 × depth 307mm height width
Weight: 37kg