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previous: dale trace,i just did a ... -- 4/24/2000 5:19 PM view thread

Re: marshall jubilee-out of phase ?

4/25/2000 1:53 PM
Trace
Re: marshall jubilee-out of phase ?
quote:
"i just did a test. i rigged up an adapter so i could quickly A/B the stereo setup with and without one of the speakers out of phase. but it sounded fuller with both speakers in phase !"
 
 
I'm not sure what you mean by "both speakers"... do you mean two different speaker cabinets? (I>E> one for the Peavey and one for the Marshall?)  
 
quote:
"could it be that only certain jubilees are like that?"
 
 
That could be although every time people used those with another amp at the same time it was out of phase with the other amps but that's just my experience.  
 
quote:
"or maybe some were shipped with speakers that were either hooked up out of phase or with incorrectly labeled terminals?"
 
 
It's all possible but I would suspect that the it's the actual amp. We tried several different speaker cabinets and it was the same thing each time which is how we determined it was the amp head.  
 
quote:
"i know that sounds impossible, but I can't understand why yours sounds out of phase but mine doesn't."
 
 
I couldn't answer that unless I could actually hear your set up. Again, it's just been my experience with those amps when used in a multi amp set up (and being run at the same time).  
 
quote:
"the thing i mentiond before is probably just the way the amp sounds compared to my old 900. it's not a bad thing, just different. but i would expect a out of phase sound to definatly be worse."
 
 
It's not that it's really bad or something that most people notice. We noticed it in the studio and it was not super obvious but you could tell the low-end was out of phase when you used the Marshall with any other amp. We reversed the phase and it was better.  
 
quote:
"so apparently either mine is in phase, or theres something in the amp that makes it out of phase in a way that can't be resolved with a speaker reversal. what are your thoughts?"
 
 
That does seem to be the case. Again it's pretty darn close to being 100% perfect but even the phase meter on the Neve VR shows it as being out a tiny bit. Most people wouldn't really notice it but we do since it's under mics.  
 
 
Trace