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Junior Varsity
X32 Discussion
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<blockquote data-quote="Timo Ulkuniemi" data-source="post: 98599" data-attributes="member: 1978"><p>Re: S16 audio drop outs</p><p></p><p>Hello from Finland</p><p></p><p>I have been in sound business over thirty years now - so I have a little experience running long power cables.</p><p></p><p>Basic practice - as Rob pointed out - is to have ONE electric supply point, that is strong enough to run your entire system - here it is mostly 3-phase 240V16A outlet - or 32 or even 63 Amps - take all power from there into distribution centre close to your amp-rack, where most power is consumed. from there you pull lines for backline amps etc. And one line to FOH . With three-phase system it is also essential to load all three phases equally, if you are using a lot of power. I usually connect one side of pa into phase one, other side into 2 and monitor-amps, FOH and backline into 3 ...</p><p></p><p>Sometimes I do this in a place, that already has plenty of outlets all around the stage and musicians are wondering, why I do not allow them to use those. Simple reason is, that those outlets might get their feed from who knows where and therefore create a massive ground loop - or even worse, burn your equipment or cause personal injury or death !!!</p><p></p><p>If your power cable is of decent thickness - consult your electrician - it can be hundreds of meters long - but everything MUST be grounded in ONE point and ONLY in one point. Search internet for "ground loops" or audio grounding or or or...</p><p></p><p>Or you can imagine a tree - every single leaf has connection to ground - through branches and stem - but only one way.</p><p></p><p></p><p>One more thing - have you have electrician check the power-feed to your sound system? Is it properly grounded? Are there any machines using same powerline? Like freezers, air conditioners etc ? If yes, get rid of them or reorganize your power.</p><p></p><p></p><p>I have had my X32 since mid-august last year and S16 as soon they were available - this all has been used in dozens of places ranging from my warehouse ( we were trying to induce errors with spikes ) to small clubs to largest festival in this country. There was NEVER any issue. Of course people using system were all aware of importance of right cabling.</p><p></p><p></p><p>Most common source of problems in any audio system ranging from simple hi-fi to recording studio to live sound system has always been some fault in cabling.</p><p></p><p>I do not recall all details of your problem, but have you ruled out RF coming from somewhere outside the system? We had a serious problem with that in 1975 or so in a recording studio, who had a plastic-molding company on next lot. They had a HF-apparatus to weld pieces together and it emitted a non-frequent BZZZZZ in our left monitor in studio A - it took well over an year to find out.....</p><p></p><p></p><p>Whatever the cause of your problem is - do not give up - X32 is a lovely thing to operate - thats hy I have X32 rack coming soon, too.</p></blockquote><p></p>
[QUOTE="Timo Ulkuniemi, post: 98599, member: 1978"] Re: S16 audio drop outs Hello from Finland I have been in sound business over thirty years now - so I have a little experience running long power cables. Basic practice - as Rob pointed out - is to have ONE electric supply point, that is strong enough to run your entire system - here it is mostly 3-phase 240V16A outlet - or 32 or even 63 Amps - take all power from there into distribution centre close to your amp-rack, where most power is consumed. from there you pull lines for backline amps etc. And one line to FOH . With three-phase system it is also essential to load all three phases equally, if you are using a lot of power. I usually connect one side of pa into phase one, other side into 2 and monitor-amps, FOH and backline into 3 ... Sometimes I do this in a place, that already has plenty of outlets all around the stage and musicians are wondering, why I do not allow them to use those. Simple reason is, that those outlets might get their feed from who knows where and therefore create a massive ground loop - or even worse, burn your equipment or cause personal injury or death !!! If your power cable is of decent thickness - consult your electrician - it can be hundreds of meters long - but everything MUST be grounded in ONE point and ONLY in one point. Search internet for "ground loops" or audio grounding or or or... Or you can imagine a tree - every single leaf has connection to ground - through branches and stem - but only one way. One more thing - have you have electrician check the power-feed to your sound system? Is it properly grounded? Are there any machines using same powerline? Like freezers, air conditioners etc ? If yes, get rid of them or reorganize your power. I have had my X32 since mid-august last year and S16 as soon they were available - this all has been used in dozens of places ranging from my warehouse ( we were trying to induce errors with spikes ) to small clubs to largest festival in this country. There was NEVER any issue. Of course people using system were all aware of importance of right cabling. Most common source of problems in any audio system ranging from simple hi-fi to recording studio to live sound system has always been some fault in cabling. I do not recall all details of your problem, but have you ruled out RF coming from somewhere outside the system? We had a serious problem with that in 1975 or so in a recording studio, who had a plastic-molding company on next lot. They had a HF-apparatus to weld pieces together and it emitted a non-frequent BZZZZZ in our left monitor in studio A - it took well over an year to find out..... Whatever the cause of your problem is - do not give up - X32 is a lovely thing to operate - thats hy I have X32 rack coming soon, too. [/QUOTE]
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