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Bang! Posted on: 14.03.2013 by Doreen Schurle So I'm playing my usual Thursday evening , and mid-way through my set, I hear an almighty BANG. Everything's still working, so I'm desperately trying to work out just exactly what it is that blew up on me... then I notice my mixer smells VERY strongly of burning. And yet, everything's still going strong :-/ going to have to disassemble it when I get home, mebelieves.
Doreen Schurle 15.03.2013	Originally Posted by makar1 Wow ok. I'd be more worried about damage to the 1000X running your Master Out through its preamps. Never send a line signal through a Mic input! The manual says the TRS Line inputs accept both balanced and unbalanced inputs so they're best way to connect your mixer. Yeah I just discovered that haha. Unfortunately the "Mic" lettering wasn't there so I just assumed it was for balanced inputs :P EDIT: It wasn't ACTUALLY a Studiomaster Powerhouse, it was a practically identical Chinese clone without the branding.
Doreen Schurle 15.03.2013	Originally Posted by makar1 Please tell me the XLR outs of the Reloop weren't connected to the XLR inputs on the Studiomaster Yep, that's what it was. MY fault... Completely forgot about the phantom power issue Still, we live and learn! And at least no serious damage was done
Alphonso Deitchman 15.03.2013	Originally Posted by Steve Zorilow False, like I said about the phantom power. your capacitor are 16v rated VS 48v Phantom (assuming it was it) If you REALLY want to play safe.... use galvanic isolation. In leman term: passive Isolation Transformer or D.I. Please tell me the XLR outs of the Reloop weren't connected to the XLR inputs on the Studiomaster
Lisa Lochotzki 15.03.2013	Originally Posted by makar1 Capacitor plague doesn't blow the tops off like that! Depending on many factor yes... or no. But smaller sized one like those are more susceptible to explode.
Lisa Lochotzki 15.03.2013	Originally Posted by mdcdesign Moral of the story: use unbalanced outputs if you're plugging into junk gear . False, like I said about the phantom power. your capacitor are 16v rated VS 48v Phantom (assuming it was it) If you REALLY want to play safe.... use galvanic isolation. In leman term: passive Isolation Transformer or D.I.
Ara Tima 14.03.2013	Originally Posted by SirReal BOOOOooooo, can you get the venue to kick down some dosh to help with the "fix"? That'd be one very nice venue if they did, they'd probably be better off putting the money towards better gear...
Doreen Schurle 14.03.2013	Originally Posted by DJ Asand haha damn son! what mixer is that? Reloop RMX-40; the caps are actually relatively good quality, was my fault for running it into substandard gear (Studiomaster Powerhouse 1000X)
Doreen Schurle 14.03.2013	Well, mystery solved... anyone wanna see the carnage inside? :P Capacitors-1.jpg See that white thing? That USED to be a capacitor. Capacitors-2.jpg It was attached to one side of the balanced output, I'm guessing there was an impedence imbalance into the venue's powered mixer (which was quite a piss-poor one tbh, one of those nasty Chinese generics) and it blew the cap. Capacitors-3.jpg As you can see, I managed to locate the sheath of the capacitor; rattling around inside the bottom of the casing! Moral of the story: use unbalanced outputs if you're plugging into junk gear .
Doreen Schurle 14.03.2013	So I'm playing my usual Thursday evening , and mid-way through my set, I hear an almighty BANG. Everything's still working, so I'm desperately trying to work out just exactly what it is that blew up on me... then I notice my mixer smells VERY strongly of burning. And yet, everything's still going strong :-/ going to have to disassemble it when I get home, mebelieves.
Doreen Schurle 15.03.2013	Originally Posted by makar1 Wow ok. I'd be more worried about damage to the 1000X running your Master Out through its preamps. Never send a line signal through a Mic input! The manual says the TRS Line inputs accept both balanced and unbalanced inputs so they're best way to connect your mixer. Yeah I just discovered that haha. Unfortunately the "Mic" lettering wasn't there so I just assumed it was for balanced inputs :P EDIT: It wasn't ACTUALLY a Studiomaster Powerhouse, it was a practically identical Chinese clone without the branding.
Alphonso Deitchman 15.03.2013	Wow ok. I'd be more worried about damage to the 1000X running your Master Out through its preamps. Never send a line signal through a Mic input! The manual says the TRS Line inputs accept both balanced and unbalanced inputs so they're best way to connect your mixer.
Doreen Schurle 15.03.2013	Originally Posted by makar1 Please tell me the XLR outs of the Reloop weren't connected to the XLR inputs on the Studiomaster Yep, that's what it was. MY fault... Completely forgot about the phantom power issue Still, we live and learn! And at least no serious damage was done
Alphonso Deitchman 15.03.2013	Originally Posted by Steve Zorilow False, like I said about the phantom power. your capacitor are 16v rated VS 48v Phantom (assuming it was it) If you REALLY want to play safe.... use galvanic isolation. In leman term: passive Isolation Transformer or D.I. Please tell me the XLR outs of the Reloop weren't connected to the XLR inputs on the Studiomaster
Lisa Lochotzki 15.03.2013	Originally Posted by makar1 Capacitor plague doesn't blow the tops off like that! Depending on many factor yes... or no. But smaller sized one like those are more susceptible to explode.
Lisa Lochotzki 15.03.2013	Originally Posted by mdcdesign Moral of the story: use unbalanced outputs if you're plugging into junk gear . False, like I said about the phantom power. your capacitor are 16v rated VS 48v Phantom (assuming it was it) If you REALLY want to play safe.... use galvanic isolation. In leman term: passive Isolation Transformer or D.I.
Alphonso Deitchman 15.03.2013	Capacitor plague doesn't blow the tops off like that!
Lisa Lochotzki 15.03.2013	Capacitor plague (sort of) really usual stuff. Nothing to worry about that. Seems to be the output capacitor at first glance. also seems to be 22uF. I would change those 4 one in one shot while having the "hood open". It's nothing that critical as long as they're all the same value. 22uF to 47uF are "standard"/popular values for most audio devices. 25v or greater. 50v is on the safer side when you plug your device to any console with the phantom power left on... yeah, it happen really often. 22uF-47uF, 50v, 105C with a decent ESR and away you go for another couple of years.
Alphonso Deitchman 15.03.2013	What makes you sure it was the Studiomaster that caused it?
Jefferson Grigor 15.03.2013	At least it kept working and the music didn't stop hope you get it sorted, this is a bit of a fail on the venues part.
Clemmie Peton 14.03.2013	At least you found the sheath, should be an easy fix
Ara Tima 14.03.2013	Originally Posted by SirReal BOOOOooooo, can you get the venue to kick down some dosh to help with the "fix"? That'd be one very nice venue if they did, they'd probably be better off putting the money towards better gear...
Antonetta Wikel 14.03.2013	BOOOOooooo, can you get the venue to kick down some dosh to help with the "fix"?
Doreen Schurle 14.03.2013	Originally Posted by DJ Asand haha damn son! what mixer is that? Reloop RMX-40; the caps are actually relatively good quality, was my fault for running it into substandard gear (Studiomaster Powerhouse 1000X)
Ralph Alderette 14.03.2013	haha damn son! what mixer is that?
Doreen Schurle 14.03.2013	Well, mystery solved... anyone wanna see the carnage inside? :P Capacitors-1.jpg See that white thing? That USED to be a capacitor. Capacitors-2.jpg It was attached to one side of the balanced output, I'm guessing there was an impedence imbalance into the venue's powered mixer (which was quite a piss-poor one tbh, one of those nasty Chinese generics) and it blew the cap. Capacitors-3.jpg As you can see, I managed to locate the sheath of the capacitor; rattling around inside the bottom of the casing! Moral of the story: use unbalanced outputs if you're plugging into junk gear .
Jetta Drenzek 14.03.2013	Maybe just a static discharge that hit the audio circuitry? That would explain the bang. No idea about the burning smell though. Imaginary, perhaps?
Antonetta Wikel 14.03.2013	What track were you playing? Maybe it was just too awesome for the mixer to handle.

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