Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Miguel Dahl]

Many years ago I saw a Senn WL-tech had wired all his receivers with one cable which ran from top to bottom of his rack and it tapped into all the headphone outputs. He could just turn the volume up and down on the individual receivers instead of having to plug his headphone into them individually, I thought that was a neat thing. I don't know where or into what his headphones were actually plugged into.

How would I go about doing this? Is it as simple as just make one cable where TRS from each jack is connected, or is there some impedance things or such to worry about? Then add a headphone preamp, or just a jack-connector where I plug in my headphones?

[Ike Zimbel]

Many years ago I saw a Senn WL-tech had wired all his receivers with one cable which ran from top to bottom of his rack and it tapped into all the headphone outputs. He could just turn the volume up and down on the individual receivers instead of having to plug his headphone into them individually, I thought that was a neat thing. I don't know where or into what his headphones were actually plugged into.

How would I go about doing this? Is it as simple as just make one cable where TRS from each jack is connected, or is there some impedance things or such to worry about? Then add a headphone preamp, or just a jack-connector where I plug in my headphones?

I would think you would need to add a pair of series resistors on each plug; as what you are really doing is creating a mix-bus. Not sure what value would be best but I would say somewhere between 22 and 100 ohms, 1/4 watt types.

[Miguel Dahl]

I would think you would need to add a pair of series resistors on each plug; as what you are really doing is creating a mix-bus. Not sure what value would be best but I would say somewhere between 22 and 100 ohms, 1/4 watt types.

Right, does this mean a resistor on each leg? TRS?

[Ike Zimbel]

Right, does this mean a resistor on each leg? TRS?

Yes, it does. If it was me, I would just wire the jacks per normal, and have all of the summing resistors and the output jack in a small box or on a 1-U rack panel. Trying to build the resistors into the jacks is a pain.

[Brian Jojade]

Doing a simple combine of all of the headphone outputs should be avoided for the same reason you don't want to combine audio level signals. The back feed of one signal can cause potential problems with the output circuits on another device.

Using the series resistors should prevent this problem, but will cut down on the level of your headphones.  Chances are it will mean you then need to use a headphone amp as well.

It might be a little more graceful to either use just a rotary switch, or a series of push buttons that lets you turn on and off each unit that you're monitoring. (DPDT pushbuttons could be wired in such a way that signal would pass through and only one signal could ever get through) No resistors necessary then.

[Keith Broughton]

Depending on how many receivers you have, you could buy a Behringer RX1602 line mixer for about $125 .

[Russell Ault]

{...}individual receivers instead of having to plug his headphone into them{...}

{...} How would I go about doing this? {...}

Not quite the answer you're looking for, but this is what I'd use.

-Russ

[ProSoundWeb Community]