Up for sale here is this set of 4 new metal flat connectors.  These are perfect fits for all the gear that used the speaker plugs.  All you will need to do is solder wires to these and use a little electrical tape or heat-shrink tubing to cover the wire connection.  These are great replacements for the speaker plugs.  You will receive four metal connectors, enough for one pair of speaker plugs (for two speakers).  This listing is just for the four metal connectors, as shown in the picture.  These measure 28.2mm long, 3.77mm wide, and 1.1mm thick.  They will work for the following:

Akai:

AA Series: AA-910, AA-920, AA-930, AA-940, AA-960, AA-970, AA-980

AS Series: AS-980

ALLIED:

335, 365, 380, 395, 399, 429, 435, 445, 490, 498, 475, 495, 995
Pioneer:

K Series: K71-032, K71-642, K72-007

QA Series: QA-800

SA Series: SA-100, SA-302, SA 302R, SA-500, SA-500A, SA-600, SA700, SA-800, SA-900, SA-1000

SX Series: SX-300T, SX-400, SX-410, SX-424, SX-440, SX-525, SX-626, SX-727, SX770, SX-820, SX-828, SX-990, SX-1000, SX-1000TD, SX-1000TW, SX-1500, SX-1500TD, SX-2500, SX-3000, SX-6000, SX-9000

QX Series: QX-4000, QX-8000, QX-9000, QX-9900

US shipping and handling is $6, and international is $20, no matter what quantity you buy. If you want to buy other items from me as well, just use "add to cart" on everything you want, then go to your cart and click "request total from seller" and I will send you a combined invoice. If you have any questions, please ask.

Looking for more parts?  I have power switches, feet, pushbuttons, top case screws, bottom screws, faceplate screws, white LED fuse lamps, blue LED fuse lamps, 6.3v bi-pin bulbs, 8v bi-pin bulbs, 12v bi-pin bulbs, wired 8v 50ma bulbs, new power cords, new main capacitors for the Marantz 1060/2230, wired Pioneer speaker plug replacements, new 630v yellow film capacitors at 38 different values, new 1200v yellow film capacitors at 15 values, a large variety of transistors for vintage stereo repair, new Wima film capacitors for stereo repair, new 250v yellow film crossover capacitors, and more.  Just use "add to cart" on everything you want and then check out for combined shipping.