Pioneer speaker plugs ( are they universal in size?)

[kydog]

I sent a fellow AK'r a set of speaker plugs for his SX 770 and to his surprise they did not fit. They were returned for another set DIRECTLY off my Sx 770
and again today I was informed THAT pair was also a non/match:scratch2:

What gives? Any one else experiance this with the pioneer plugs? are they unique to that given receiver?

 

[nolan]

That is interesting. I will soon own a SX-990 that is in need of plugs. If I remember correctly it uses # AKM-003 plugs. I will be watching this thread for info.

 

[Pioneer72-81]

I would have guessed that they all used the AKM-003 speaker plug. However, the SX-770, SX-990, etc, were built starting in 1970, and all the pieces I own that use the AKM-003 style speaker plug were built in 1972 or later. The 1970 style may have been a slightly different size. Is it possible that something is jammed in the insert where the speaker plug slides in? Some people that lost the speaker plugs would just jam the speaker wire into the socket. Maybe the slots are jammed up. My oldest component is from 1972, so ultimately I cannot offer any other advice. Good luck.

 

[kydog]

The thing is this; The slot is not jammed The bottom spade of the plug is too wide & won't fit into the slot per owner explanation, It came right out off my SX 770 but too wide for his unit:scratch2: The first set that was sent came off my SX 727, when he returned them I compared the size of the two(SX 770 vs.SX 727) & it appeared to be a perfect match, But not a fit for his unit.

 

[Waterland]

This is correct. Kydog sent me the plugs and the bottom spade is indeed too wide to fit the bottom slot. The top spade is the right size to fit, that is 3/16" wide, whereas the bottom plug is 1/4" and therefore does not fit. If both spades were 3/16", it would fit just fine, and i have seen pictures of the plugs that seem to be that size. It's just odd to me that plugs from one SX-770 wouldn't fit another SX-770, unless for some reason the speaker inputs on my stereo have been retrofitted from another unit.

 

[nolan]

Would it be possible to file it down to fit?

 

[luckyed]

I have plugs from an sx 2500 that I am using for my sx 727 that I got without plugs. Best I can offer.

 

[NealinNevada]

Would it be possible to file it down to fit?

There is the answer :yes:! Take a 1/16" off the bottom spade...

 

[markthefixer]

I'm basing this on a sx-828 speaker plug set.

First, the thickness: 1/16 inch = 0.060 inch. Think wall power plug, not fast-on terminals for thickness. Fast-ons are 1/32 or 0.030 inch. Two WILL do to get the correct tension. Wall power plugs are typically 0.060 or 1/16 inch.

The width: for one (vertical, ground side, usually ) is 0.250 - 1/4" , the larger fast-on width.
for the other(horizontal, hot side, usually) is 0.187 - 3/16" the narrower fast-on width.

It looks to me that a cheap wall cord could be carefully split in two, sculpted to allow the horizontal and vertical bars to be placed in close proximity, and the horizontal plug shaved/filed off on each side of the plug to fit.

 

[Ed in Tx]

I have some AKM-003 plugs I keep for testing purposes, which I've had for 30 years that I got when I worked at Pioneer so I know they are genuine, and the spades on those are exactly the same dimension. I've never heard of two different AKM-003 plug sizes. Very odd why there would be two slightly different incompatible plugs with the same part number. :scratch2:

 

[Mark W.]

Gee's just take a 6" mill file and in a few strokes remove the extra material problem solved.

 

[Ed in Tx]

Handy little adapter I made with mine...

 

[markthefixer]

I'm basing this on a sx-828 speaker plug set.

First, the thickness: 1/16 inch = 0.060 inch. Think wall power plug, not fast-on terminals for thickness. Fast-ons are 1/32 or 0.030 inch. Two WILL do to get the correct tension. Wall power plugs are typically 0.060 or 1/16 inch.

The width: for one (vertical, ground side, usually ) is 0.250 - 1/4" , the larger fast-on width.
for the other(horizontal, hot side, usually) is 0.187 - 3/16" the narrower fast-on width.

It looks to me that a cheap wall cord could be carefully split in two, sculpted to allow the horizontal and vertical bars to be placed in close proximity, and the horizontal plug shaved/filed off on each side of the plug to fit.

Gee's just take a 6" mill file and in a few strokes remove the extra material problem solved.

You COULD go with two narrow ones that are just 3/16 wide to start out with.....

 

[kydog]

Gee's just take a 6" mill file and in a few strokes remove the extra material problem solved.

There you go:yes: Didn't know if filing them down would cause a problem.
Still weird out about the size difference. maybe a factory miscalculation on his particular unit. ( bottom plug slot).:scratch2: That caused the misfit.

 

[nolan]

I will soon have my sx-990 in hand,is it clearly marked which is the positve and negative? If so can you tell me which is which,horizontal= Vertical = ??? I will have to make something up for now until I can purchase the proper plugs. Everything is budget sensitive at this time.

Thanks for any info.

 

[33&athird]

I will soon have my sx-990 in hand,is it clearly marked which is the positve and negative? If so can you tell me which is which,horizontal= Vertical = ??? I will have to make something up for now until I can purchase the proper plugs. Everything is budget sensitive at this time.

Thanks for any info.

Should be, if not: the top part is horizontal, and positive; and the bottom is vertical and negative. That should be correct for every pioneer receiver:yes:

I will say, those plugs are a tremendous pain just because of the price and the like. I can't imagine they made different sizes, maybe there was a bad day at the factory on your amp?, either that or the plug was a slighly different model originally, as I recall, they used those plugs from 1970 to 1974 or so? I know they replaced them one year with the basic spring-loaded terminals, and no-one missed the old plugs.

You would think that since every pioneer came with them that there would be alot more out there for alot cheaper, since thousands were produced, but no:scratch2:.

 

[nolan]

Should be, if not: the top part is horizontal, and positive; and the bottom is vertical and negative. That should be correct for every pioneer receiver:yes:

I will say, those plugs are a tremendous pain just because of the price and the like. I can't imagine they made different sizes, maybe there was a bad day at the factory on your amp?, either that or the plug was a slighly different model originally, as I recall, they used those plugs from 1970 to 1974 or so? I know they replaced them one year with the basic spring-loaded terminals, and no-one missed the old plugs.

You would think that since every pioneer came with them that there would be alot more out there for alot cheaper, since thousands were produced, but no:scratch2:.

Thanks for the info. I will surely be making my own,I just do not have the moolah right now.

 

[33&athird]

Thanks for the info. I will surely be making my own,I just do not have the moolah right now.

$20 is very steep for a small bit of plastic and two conductors:yes: I bought a set for my sx-525, and swore I wouldn't again, then I turn around and buy a sx-727:scratch2:.

There was a topic that mentioned using standard spade connectors, and adding solder to them so they fit firmly in place, I think i'll go that route, same effect, and avoids cramming in wires.

 

[markthefixer]

I'm basing this on a sx-828 speaker plug set.

First, the thickness: 1/16 inch = 0.060 inch. Think wall power plug, not fast-on terminals for thickness. Fast-ons are 1/32 or 0.030 inch. Two WILL do to get the correct tension. Wall power plugs are typically 0.060 or 1/16 inch.

The width: for one (vertical, ground side usually ) is 0.250 - 1/4" , the larger fast-on width.
for the other(horizontal, hot side, usually) is 0.187 - 3/16" the narrower fast-on width.

It looks to me that a cheap wall cord could be carefully split in two, sculpted to allow the horizontal and vertical bars to be placed in close proximity, and the horizontal plug shaved/filed off on each side of the plug to fit.

I will soon have my sx-990 in hand,is it clearly marked which is the positve and negative? If so can you tell me which is which,horizontal= Vertical = ??? I will have to make something up for now until I can purchase the proper plugs. Everything is budget sensitive at this time.

Thanks for any info.

^^^^^
edit:
ground is negative (-)
hot is positive(+)

Thanks for the info. I will surely be making my own,I just do not have the moolah right now.

You don't have some junk 2 wire AC wall plugs/cords sitting around??
They aren't pretty, but they are brass, made to handle far more power than the receiver can put out, FIT SNUGLY, and are bright plated with something for long lived contacts.

You do have to file one of them down a bit, but a sharp file can cut through brass rather quickly and easily as I found out...

The file can be used to dress up the plastic's appearance a bit, I gnawed through these with a sharp pair of side cutters, after splitting the plug with a dremel blade.

 

[EchoWars]

Ghetto fix!

Damn those connectors were a stupid idea.