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
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.
area has a large rigidity, the diaphragm by a special molding has been
finished to a high durability without influence of humidity.
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.
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.
special hard duralumin foil thickness is used, having a tangential
structure corrugation, the diaphragm is raised edge strength.
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
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Available for local pickup
from Leominster, MA
We offer three local pickup locations, in Leominster, MA; Southbridge, MA; and East Hartford, CT. On receiving cleared payment we will ship via UPS Ground anywhere in the continental United States for flat rate listed. For any other location, please contact us for a shipping quote.
We accept returns within 14 days of receipt.Please inspect gear and call to report damage and we will notify shipper to process the claim.All other returns are subject to a 25% restocking fee.All shipping charges to and from the customer will be deducted from refund as well as the restocking fee.