Need hEEEEEEEElp!!!! wiring problem!!!!

guitaratiug · 27th October 2005, 05:44 PM

Hello and thanks to all audio fanatics...

I need help connecting and wiring this gear:

Mesa Boogie Triaxis preamp 6'3 jack balanced output ---> Klark Teknik Dn-405 parametric equaliser XLR balanced input (pin 2 hot jumper ON) ; and

DN-405 XLR UNBALANCED output (pin 2 hot jumper ON) ---> TC Electronics G-Force UNBALANCED 6'3 jack input.

I think the correct wiring should be:

TRIAXIS BALANCED JACK OUTPUT: TIP (+), RING (-), SLEEVE (G)

DN-405 BALANCED XLR INPUT: PIN 1 (G), PIN2 (+), PIN 3 (-)

DN-405 UNBALANCED XLR OUTPUT: PIN1 (G), PIN 2 (+), PIN 3 (DISCONNECTED)

G-FORCE UNBALANCED JACK IN: TIP (+), RING (G)

But I get -6 dB and a high frequency loss at the output of the DN-405 in comparison to the Triaxis output!!! Also, it sounds perfect if I turn off the DN-405. (???)

kepa1 · 30th October 2005, 03:43 PM

Hi guitaratiug,

I'm not sure I totally understood your setting but whenever you connect a balanced output with unbalanced adaptors, you lose 6db.

That would explain your loss, wouldn't it?

guitaratiug · 30th October 2005, 10:10 PM

Thank you for your reply, but

The signal path goes from an UNBALANCED XLR (where pin 1 and 3 are connected in the output) to an unbalanced input jack. There should be no signal loss at all in this case!

[My conclusion is that it may be occuring an impedance problem...]

27th October 2005, 05:44 PM	#1
guitaratiug diyAudio Member Join Date: Oct 2005	Need hEEEEEEEElp!!!! wiring problem!!!! Hello and thanks to all audio fanatics... I need help connecting and wiring this gear: Mesa Boogie Triaxis preamp 6'3 jack balanced output ---> Klark Teknik Dn-405 parametric equaliser XLR balanced input (pin 2 hot jumper ON) ; and DN-405 XLR UNBALANCED output (pin 2 hot jumper ON) ---> TC Electronics G-Force UNBALANCED 6'3 jack input. I think the correct wiring should be: TRIAXIS BALANCED JACK OUTPUT: TIP (+), RING (-), SLEEVE (G) DN-405 BALANCED XLR INPUT: PIN 1 (G), PIN2 (+), PIN 3 (-) DN-405 UNBALANCED XLR OUTPUT: PIN1 (G), PIN 2 (+), PIN 3 (DISCONNECTED) G-FORCE UNBALANCED JACK IN: TIP (+), RING (G) But I get -6 dB and a high frequency loss at the output of the DN-405 in comparison to the Triaxis output!!! Also, it sounds perfect if I turn off the DN-405. (???)

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30th October 2005, 03:43 PM	#2
kepa1 diyAudio Member Join Date: Apr 2004 Location: Paris	Hi guitaratiug, I'm not sure I totally understood your setting but whenever you connect a balanced output with unbalanced adaptors, you lose 6db. That would explain your loss, wouldn't it?

30th October 2005, 10:10 PM	#3
guitaratiug diyAudio Member Join Date: Oct 2005	Thank you for your reply, but The signal path goes from an UNBALANCED XLR (where pin 1 and 3 are connected in the output) to an unbalanced input jack. There should be no signal loss at all in this case! [My conclusion is that it may be occuring an impedance problem...]

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