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Post by rhinoman on Apr 24, 2019 17:14:37 GMT -7
EDIT: Okay, I grew a brain and plugged this into an 8 ohm cab and checked the load....seems to fall into the accepted norms of the load I should see on each setting. Thanks everyone that offered suggestions. This is weird. This was just delivered today....I purchased it on line and never saw the sides. The unit has two outputs on the "To Speaker" side. This is what it looks like inside. Any thoughts here? I'm sure I've only seen one output with these.
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Post by KeithA on Apr 24, 2019 17:22:51 GMT -7
I know the Brake Lite SA has two speaker outs wired in parallel.
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Post by rhinoman on Apr 24, 2019 19:10:02 GMT -7
I know the Brake Lite SA has two speaker outs wired in parallel. Okay, cool...this definitely looks like a modded unit to me. Don’t wanna blow my amps up!!
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Post by KeithA on Apr 24, 2019 20:23:19 GMT -7
I know the Brake Lite SA has two speaker outs wired in parallel. Okay, cool...this definitely looks like a modded unit to me. Don’t wanna blow my amps up!! Yeah, it may be. Are the inputs centered on the end or is one right in the middle with the other off to one side? They look to. E not centred so it may be a modded unit.
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Post by rhinoman on Apr 24, 2019 20:29:21 GMT -7
Okay, cool...this definitely looks like a modded unit to me. Don’t wanna blow my amps up!! Yeah, it may be. Are the inputs centered on the end or is one right in the middle with the other off to one side? One is centered and the other is off to the side....and they're not exactly the same height. I can't imagine that this is a factory job. At the same time I don't know how much I care as the wiring is solid and if it works correctly out of the main output then I'm good. I just want to be sure before I plug this in. I think there would be enough information of a problem in the photo to tell....maybe?
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Post by KeithA on Apr 24, 2019 20:37:08 GMT -7
Yeah, it may be. Are the inputs centered on the end or is one right in the middle with the other off to one side? One is centered and the other is off to the side....and they're not exactly the same height. I can't imagine that this is a factory job. At the same time I don't know how much I care as the wiring is solid and if it works correctly out of the main output then I'm good. I just want to be sure before I plug this in. I think there would be enough information of a problem in the photo to tell....maybe? Yeah, looks modded to me. I guess the main thing to note is if the outputs are wired in series or parallel and what impedance th unit is seeing with multiple cabs hooked up? Doc may be able to tell us pretty easily. It may be fine as the Brake Lite SA has two parallel outputs wired in parallel.
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Post by rhinoman on Apr 24, 2019 20:41:33 GMT -7
One is centered and the other is off to the side....and they're not exactly the same height. I can't imagine that this is a factory job. At the same time I don't know how much I care as the wiring is solid and if it works correctly out of the main output then I'm good. I just want to be sure before I plug this in. I think there would be enough information of a problem in the photo to tell....maybe? Yeah, looks modded to me. I guess the main thing to note is if the outputs are wired in series or parallel and what impedance th unit is seeing with multiple cabs hooked up? Doc may be able to tell us pretty easily. It may be fine as the Brake Lite SA has two parallel outputs wired in parallel. I'll only be playing one cab at a time...ever. So I could clip the extra jack out and just use a plastic plug on the hole if all else is well....or just plug into the main jack and ignore the other one. I don't much care. Just want to me sure I'm good. I'm actually gonna post a full guts shot in case that helps....I'm sure the Doc will know what's up. Thanks!
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Post by KeithA on Apr 25, 2019 3:02:43 GMT -7
Yeah, looks modded to me. I guess the main thing to note is if the outputs are wired in series or parallel and what impedance th unit is seeing with multiple cabs hooked up? Doc may be able to tell us pretty easily. It may be fine as the Brake Lite SA has two parallel outputs wired in parallel. I'll only be playing one cab at a time...ever. So I could clip the extra jack out and just use a plastic plug on the hole if all else is well....or just plug into the main jack and ignore the other one. I don't much care. Just want to me sure I'm good. I'm actually gonna post a full guts shot in case that helps....I'm sure the Doc will know what's up. Thanks! Yeah, looks like the second output is just jumpered off the first so I'd say it will just run normal through the original output.
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Post by Maddog on Apr 25, 2019 4:39:08 GMT -7
More than likely, and as best as I can tell from the pics, it's wired in parallel.
If the mod is wired in Series, and you only used one speaker, there will be no sound.
If it's wired in Parallel, and you connect two speakers of the appropriate impedance, your amp will be seeing only half the resistance it needs to be "matching." And that's not ideal!
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Post by rhinoman on Apr 25, 2019 7:25:26 GMT -7
More than likely, and as best as I can tell from the pics, it's wired in parallel. If the mod is wired in Series, and you only used one speaker, there will be no sound. If it's wired in Parallel, and you connect two speakers of the appropriate impedance, your amp will be seeing only half the resistance it needs to be "matching." And that's not ideal! So if this is wired in parallel and I only use one speaker cab then I'd be good? The price was right on this one and I'd like to stay with it unless it's just a bad idea.
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Post by Maddog on Apr 25, 2019 7:54:39 GMT -7
So if this is wired in parallel and I only use one speaker cab then I'd be good? IMHO, Yes.....But I'd feel better saying that if some of our (smarter) members also agree.....
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Post by rhinoman on Apr 25, 2019 8:01:11 GMT -7
So if this is wired in parallel and I only use one speaker cab then I'd be good? IMHO, Yes.....But I'd feel better saying that if some of our (smarter) members also agree..... Haha! I appreciate it. I really think I could snip the leads to the added jack and plug the hole....or I could just return it and get one that hasn't been molested but this was less than $200 and that makes it more attractive to keep if possible. It l doesn't look mucked with except fo this bit.
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Post by Maddog on Apr 25, 2019 8:14:43 GMT -7
Yeah, I agree. Clip the brown wires and remove the added jack so you can't make a costly mistake, and your good. Great buy, bro!!!
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Post by premiumplus (Dave) on Apr 25, 2019 14:14:13 GMT -7
Yeah, I agree. Clip the brown wires and remove the added jack so you can't make a costly mistake, and your good. Great buy, bro!!! I concur. You'll be fine, and it's a great unit, you did good!
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Post by Chilly Gibbons (Todd T.) on Apr 25, 2019 15:23:51 GMT -7
Agree with above. Clip the leads, remove the jack, and for goodness sake plug that hole!
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Post by pcns on Apr 25, 2019 17:51:38 GMT -7
looks like whoever did the model used lamp chord for the wire.
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Post by Maddog on Apr 26, 2019 4:23:33 GMT -7
looks like whoever did the model used lamp chord for the wire. Funny thing is; it works really well..... Don't ask me how I know!
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Post by rhinoman on Apr 26, 2019 8:07:30 GMT -7
I’ll be honest, I’m mostly concerned at this point that someone may have done more than add the second jack. Looking at other Z Air Brake guts on line MAY indicate a couple difference with the purple wire. I hope one of Doc’s crew can tell from the photo.
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Post by rhinoman on Apr 30, 2019 10:47:58 GMT -7
EDIT: Okay, I grew a brain and plugged this into an 8 ohm cab and checked the load....seems to fall into the accepted norms of the load I should see on each setting. Thanks everyone that offered suggestions.
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