vintage PIONEER 8” woofers from ProMusica 80 speakers, c.1980—new foam surrounds

Description

Offered for your consideration is a pair of
Pioneer
part number NW-2002
8 inch woofers
removed from my Pioneer ProMusica80 speakers, manufactured c.1980.  These 8” mid/bass woofers were possibly used in other period speakers from Pioneer, but the buyer is ultimately responsible for determining their suitability for any models other than the ProMusica80.
So, please see my large photos, the measurements, and read the remainder of the description to decide if these Pioneer 8” mid/bass woofers should be yours.
This pair of Pioneer 8” woofers is in clean, excellent condition. They have sturdy paper cones that are structurally flawless and the fabric voice coil dust caps are dimple-free perfect.  Also, the steel baskets are also in great shape with no dings, finish wear, or oxidation noted.  Most importantly,
the aged original factory foam surrounds were just replaced
.
The main drawback to most US and foreign-made speakers from the early 1970’s through 1990’s was the use of foam surrounds for woofer cone suspension. Though foam offers better excursion than coated linen and rubber, it invariably rots and/or disintegrates in 15-20 years no matter what climate you live in. Light, sunlight in particular, seems to be the culprit.  These Pioneer woofers were no exception—the surrounds had dried out and fallen apart.
Some of you have replaced speaker surrounds before, so you know that it’s a time-consuming process that takes a great deal of patience and a steady hand. First, I slowly removed the spongy, four-section flange gaskets.  Then, I carefully cleaned the cone edge/basket flanges to remove the old gummy foam and stubborn factory adhesives, which takes some time to do thoroughly, and glued the inner surrounds to the cones.  Next, I glued the outer surround lips to the basket flanges after careful voice coil centering to verify no rubs or distortion during play.  Lastly, the factory flange gaskets were neatly reapplied.  Now these woofers are in great shape once again; perhaps even better than new with the improved polyether foam surrounds of today!
Most importantly, they’ve been fully tested after the new surrounds were installed and sound terrific—strong and clear with fast, detailed midrange, and solid bass response.  I also tested their DC resistance at a
perfectly
-matched 5.2Ω each, consistent with a nominal 6 ohm driver rating.  Lastly, the basket flanges measure 8⅝” square, 10” from rounded corners, they stand about 3⅜” tall, and the four mount holes are spaced 6½” adjacent / 9⅜” on the diagonal apart, c-t-c.
These are a nice find if your ProMusica80 speakers, or other suitable Pioneer’s, have been sitting idle with woofers that are blown or unplayable due to decayed surrounds—your speakers will be sounding their finest again!
As pictured and described, this pair of Pioneer 8” woofers with painstakingly refurbished surrounds is offered at a competitive price.
Terms of Sale
:
I encourage prospective buyers to ask any questions they may have about this pair of Pioneer woofers.
Payment is due at checkout by
PayPal
or other accepted methods. U.S. lower-48 mailing addresses will pay .95 for
very
carefully packed shipping via U.S. Postal Service, FedEx, or UPS with tracking and delivery confirmation.  International purchases accepted only from those who are able to pay with
PayPal
including shipping by U.S. Postal Service Global Priority Air Mail.
Thanks for looking, and I look forward to doing business with one of you!
*
the above product label photo is presented only for donor model reference