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Wallin Jig 1 for Speaker Workshop: Wiring Problem?!
Wallin Jig 1 for Speaker Workshop: Wiring Problem?!
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Old 12th September 2002, 06:48 AM   #1
Rarkov is offline Rarkov  England
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Default Wallin Jig 1 for Speaker Workshop: Wiring Problem?!

I have just made a Wallin 1 Jig (Already bought components before finding the Jig 2) and thought I had done a fairly good job of it. All the resistance checks turned out right so I started calibrating. When recording the 'junk' signal, it produced nice results. When I took away one of the RCA connectors (J2 - Right) the right channel disappeared as predicted...OK so far. However, when it came to doing impedance calibrations, I got a warning signal saying the the connectors are the wrong way around - when I changed them, it read the resistance values correctly.

So now the channels are the wrong way around, it has correctly got the internal resistance values - BUT when I try and do an passive component measurement in CAL1 mode, it says it's an inductor. Moreover, when I swap the RCA J2 and J3 around (Left and Right line in) it still calls the resistor an inductor...

The other problem is that when I try to do impedance measurements on speakers, I get a straight line of about 0.25Ohms and a phase in the shape of a perfect 2nd order high pass filter! I guess they're realeated though...

Any ideas? Sounds like a switch - but I can't find any problems...where should I be looking for the error?!

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Old 12th September 2002, 08:18 PM   #2
claudio is offline claudio  Italy
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Have you done the volume settings right?
Looks like, to me, that the signal is clipping so wrong resistor measurment comes out.

What value the VU meter gives you on the signal you created?

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