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time delay problem JBL 4343 (3143 network)
Time delay problem JBL 4343 (3143 network)
Hello fantastik group !!
(sorry for my poor english)
Recently, I run test calibration with my analyser for check spectrum response on driver.
Big surprise result the time delay integration is little false on cross-over 3143.
The time delay is 0,671 MS more faster for the 2405 for th rest of the drivers.
Well this effect is not change pretty well the sprectrum response but ruin the phase match...
Do you have any information for modification, repair or upgrade cross over for fix this effect ??
(I attache too small pict where the phenomenon is produce.)
thanks
Re: time delay problem JBL 4343 (3143 network)
Quote:
Originally posted by B&KMan
Do you have any information for modification, repair or upgrade cross over for fix this effect ??
Well, I ain't no expert in this, but one solution would be to take the 3143 out of the signal path, and go with an external four-way active crossover and time-delay the four signal components until you get the result you need.
Or, just have another glass of fine red wine, and sit back and enjoy the pleasures of vintage JBL engineering! :cheers:
Re: Re: time delay problem JBL 4343 (3143 network)
Quote:
Originally posted by boputnam
Or, just have another glass of fine red wine, and sit back and enjoy the pleasures of vintage JBL engineering! :cheers:
Yes this second option is particulary work : the acohol have a hight fading effect in high frecuency perception...
:cheers: and :cheers: again...
:)
Re: Re: time delay problem JBL 4343 (3143 network)
Quote:
Originally posted by boputnam
Or, just have another glass of fine red wine, and sit back and enjoy the pleasures of vintage JBL engineering! :cheers:
Bo, :cheers: