APX-8 1/4" connector question

APX series guitars are designed with a focus on playability. Their thin bodies and cutaways that provide greater access to the upper frets, offer smoother switching between electric and acoustic instruments.

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jakeman19
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APX-8 1/4" connector question

Unread post by jakeman19 » Thu Sep 06, 2018 2:36 am

I have a APX-8 and have always plugged the guitar in the lower 1/4" connector. It was getting a little loose so when I was inside taking pictures I noticed wires also going to the strap button. Is this another place to plug in a 1/4" cable? What is the source of the audio? Is this just a output that doesn't use the active wiring on the guitar? I don't get any audio if I plug into this jack/strap button. Could it be for external power for the pre-amp as it plugs into that? Help?
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Re: APX-8 1/4" connector question

Unread post by Saul » Thu Sep 06, 2018 9:12 am

Hi Jakeman19, welcome to yamahamusicians.com :)

Not come across the APX-8 before but the guitars I have used that incorporate two outputs normally have two pickups inside and the option to merge or blend the outputs to one of the outputs. Does the APX-8 have a blend option?
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Re: APX-8 1/4" connector question

Unread post by jakeman19 » Thu Sep 06, 2018 4:54 pm

Saul wrote:
Thu Sep 06, 2018 9:12 am
Hi Jakeman19, welcome to yamahamusicians.com :)

Not come across the APX-8 before but the guitars I have used that incorporate two outputs normally have two pickups inside and the option to merge or blend the outputs to one of the outputs. Does the APX-8 have a blend option?
Thank Saul for the greeting.

No it doesn't have a blend option, just the 3 knobs that hide, Volume, Bass and Treble also a selector for Mono, Stereo with 2 settings(see photo). I've seen what you are talking about on later models on YouTube etc.

If I could get a manual for it somehow, but nothing is on Yamaha's site for the APX-8.
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Re: APX-8 1/4" connector question

Unread post by Buzzard » Thu Sep 06, 2018 6:08 pm

Hi Jakeman, welcome to the forum and the string section. :D

Ahhh … STEREO ((i)) Try plugging into TWO amps.
yamaha apx-8.jpg
The jack/strap button is 1/4 inch output too.
This is rather common on electro-acoustics, my APX-500 II also used the strap knob as the output.

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Re: APX-8 1/4" connector question

Unread post by jakeman19 » Thu Sep 06, 2018 6:27 pm

Buzzard wrote:
Thu Sep 06, 2018 6:08 pm
Ahhh …. STEREO ((i)) Try plugging into TWO amps.

yamaha apx-8.jpg
Peter,

The lower 1/4" jack is a stereo one as I've plugged a TRS 1/4" cable to get stereo. So still not sure what the strap button connector is for as it doesn't seem to be audio out, unless it's not working. Still confused. I've send Yamaha Canada a Product Support message for a manual and hopefully get a response.

Jd
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Re: APX-8 1/4" connector question

Unread post by Saul » Thu Sep 06, 2018 8:07 pm

That's odd. Seems like one output is not working. Last guitar I had with two outputs was the Epiphone EJ200CE which had two pickups, one under saddle and the other at the neck. One output was stereo and the other mono but you could use both at the same time or the stereo output and "blend" the two pickups together. Actually sounded great but then the whole thing was made by 'Shadow' so it has a good pedigree :)

I would have said the same for your APX-8 with one output being stereo and one mono, although there is no blend function and one seems not to be connected or something is faulty.
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Re: APX-8 1/4" connector question

Unread post by Buzzard » Fri Sep 07, 2018 7:31 pm

VeraGalvin wrote:
Fri Sep 07, 2018 7:16 pm
Hi...i am a new user here. As per my knowledge It has always been about using the filter section to effect that source sound. So whatever you put in there, should go through the filter, and then you can use the filter to EQ sweep your input. At least, that has been the main use in the past with other model synths.
Hi VeraGalvin, welcome to the forum and the string section. :D

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Re: APX-8 1/4" connector question

Unread post by Saul » Fri Sep 07, 2018 8:38 pm

VeraGalvin wrote:
Fri Sep 07, 2018 7:16 pm
Hi...i am a new user here. As per my knowledge It has always been about using the filter section to effect that source sound. So whatever you put in there, should go through the filter, and then you can use the filter to EQ sweep your input. At least, that has been the main use in the past with other model synths.
Not sure what any of that has to do with the topic. I feel a ban hammer moment coming on! :twisted:
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Re: APX-8 1/4" connector question

Unread post by Miks » Fri Sep 07, 2018 8:42 pm

Perhaps we should wait and see if this is posted here accidentically...? :?
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Re: APX-8 1/4" connector question

Unread post by Saul » Fri Sep 07, 2018 8:43 pm

Miks wrote:
Fri Sep 07, 2018 8:42 pm
Perhaps we should wait and see if this is posted here accidentically...? :?
Yep that was my thought which is why it is still there but...let's see ;)
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Re: APX-8 1/4" connector question

Unread post by Saul » Fri Sep 07, 2018 8:45 pm

Actually I just did some checking. Definitely a spammer. Hammer used!
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Re: APX-8 1/4" connector question

Unread post by Buzzard » Fri Sep 07, 2018 8:53 pm

There was another post by same author in this topic, almost identical, but without mention of synth.
that one was deleted by the author, meanwhile, I was waiting for the last post to be edited, to get back to topic. :lol:
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Re: APX-8 1/4" connector question

Unread post by Mimasu » Sat Sep 08, 2018 6:36 pm

jakeman19 wrote:
Thu Sep 06, 2018 6:27 pm

The lower 1/4" jack is a stereo one as I've plugged a TRS 1/4" cable to get stereo. So still not sure what the strap button connector is for as it doesn't seem to be audio out, unless it's not working. Still confused. I've send Yamaha Canada a Product Support message for a manual and hopefully get a response.

Jd
Jd,

I think it's the same as on my APX20. I also remember having the original flyer introducing these guitars. I'll check next week and let you know. Now as far as memory goes:

The bass and treble blend in two PU's, one at the bass side of the bridge, one at the treble side.

In mono mode the end pin jack puts out the mono signal. In stereo mode at the end pin one channel is put out, while the other channel comes out of the second jack on the under side of the body.

I'll check next week if my APX20 looks stock. It could make sense that someone would change the second jack to stereo out. But that would mean that you'd have to put a plug in the end pin too, becourse there the switch for the battery power is.

Leon
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Re: APX-8 1/4" connector question

Unread post by Mimasu » Mon Sep 10, 2018 8:23 pm

Not the definitive answer yet but wanted to let you know I was wrong :roll: Looks I mixed up some Yamaha PU systems. Couldn'd find a stereo jack cable very quick.

First I'm almost sure the APX8 is electronically identical with my APX20.

Till now I've only used my APX20 in mono mode. As with a normal endpin connector the guitar puts out the mono signal. With the front knob "M" you dail in (mix) a body transducer and the under bridge PU.

The other lower jack seems to be stereo (also works wih no jack in the endpin). I'll do a definate check later this week as I want to be sure too. Depending on the stereo setting the tip presents strings 1,2 and 3, or 1,3 and 5. I assume the ring does the other strings. Maximum stereo effect when the under bridge PU is dailed in max.

I have the introduction flyer of the APX serie. The APX8 isn't mentiond but was introduced very short after the first line (production APX10 and 20 started march 1987, APX8 october 1987). At the back is some extra info on the electronics:

Image

Image

Leon
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Re: APX-8 1/4" connector question

Unread post by jakeman19 » Tue Sep 11, 2018 4:01 am

Mimasu wrote:
Mon Sep 10, 2018 8:23 pm
Not the definitive answer yet but wanted to let you know I was wrong :roll: Looks I mixed up some Yamaha PU systems. Couldn'd find a stereo jack cable very quick.

First I'm almost sure the APX8 is electronically identical with my APX20.

Till now I've only used my APX20 in mono mode. As with a normal endpin connector the guitar puts out the mono signal. With the front knob "M" you dail in (mix) a body transducer and the under bridge PU.

The other lower jack seems to be stereo (also works wih no jack in the endpin). I'll do a definate check later this week as I want to be sure too. Depending on the stereo setting the tip presents strings 1,2 and 3, or 1,3 and 5. I assume the ring does the other strings. Maximum stereo effect when the under bridge PU is dailed in max.

I have the introduction flyer of the APX serie. The APX8 isn't mentiond but was introduced very short after the first line (production APX10 and 20 started march 1987, APX8 october 1987). At the back is some extra info on the electronics:

Image

Image

Leon
Thanks Leon for the info thus far. As with all these other APX models it seems the they have mix knob to blend by the neck but mine doesn't have that at all just what you've seen in the photos.
The 1/4" strap button connector goes to a 1/8" that's where the battery is plugged into.
image.jpeg
Thoughts?

Jd
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