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Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => LAB: The Classic Live Audio Board => Topic started by: Matt Marcus on April 09, 2021, 12:09:23 pm

Title: Sennheiser EW instrument cable wiring
Post by: Matt Marcus on April 09, 2021, 12:09:23 pm
Anyone know know the proper wiring for a 1/4 to locking 1/8 connector for a Sennheiser EW transmitter?
Title: Re: Sennheiser EW instrument cable wiring
Post by: Daniel Levi on April 09, 2021, 01:33:20 pm
Seen this from Sennheiser UK

(https://hf-files.s3.amazonaws.com/hdpsennheiserusa_kb_attachments/2014/04-15/e8631749-a111-4408-a9cc-006d0ea1a1f7/EWwiring.png)
Title: Re: Sennheiser EW instrument cable wiring
Post by: Matt Marcus on April 09, 2021, 03:17:13 pm
Seen this from Sennheiser UK

(https://hf-files.s3.amazonaws.com/hdpsennheiserusa_kb_attachments/2014/04-15/e8631749-a111-4408-a9cc-006d0ea1a1f7/EWwiring.png)

So did I, but wondering if any resistor is needed like the lav wiring.
Title: Re: Sennheiser EW instrument cable wiring
Post by: Daniel Levi on April 09, 2021, 03:34:02 pm
Doubt a resistor is required for a guitar input, AFAIK neither my AT or AKG systems have resistors in the jack.
Seen this from the blue room, no resistor is mentioned https://www.blue-room.org.uk/index.php?showtopic=60632
Title: Re: Sennheiser EW instrument cable wiring
Post by: Scott Helmke on April 09, 2021, 03:53:28 pm
So did I, but wondering if any resistor is needed like the lav wiring.

No.
Title: Re: Sennheiser EW instrument cable wiring
Post by: Russell Ault on April 09, 2021, 03:56:53 pm
So did I, but wondering if any resistor is needed like the lav wiring.

The spec'ed line input impedance on the SK x00 Gx beltpacks is 1 MΩ, which really ought to be enough on its own.

-Russ
Title: Re: Sennheiser EW instrument cable wiring
Post by: Matt Marcus on April 09, 2021, 04:43:32 pm
Thanks, gang!