Currently there is only one G3 IEM receiver in my possession, normally used by curious directors, a boom OP or sometimes by myself if I do a car bagdrop.

I have a bunch of G3s and as I am sure many others do, my ordinary G3 receivers are sometimes utilized as additional IEMs with various degree of success.

Some of its culprits include:

– No volume knob, volume is adjusted in 6 db steps by the rocker switch once you are in the right menu setting.

– Mono out, which means that you will only have audio in only one side of your headphones unless you have a dedicated cable or adapter which will lower the volume – which leads us to the last point.

– Last but not least, the output is not that hot and when used as a headphone amp, it is struggling to give enough volume. To compensate for this one can ride the TX quite a bit over unity gain, but that will distort any spikes as we know.

I had a gig coming in where I needed an additional IEM for the talent and had to come up with something usable that didn’t break the budget in the course of a couple of days.

Here is what I did:

After some research I decided to give the 30 dollars/euros or so Behringer P2 a go. There was some vague information about it supporting mono/stereo, but not much about its implementation, so I will cover that.

The Behringer P2 connected to a Sennheiser G3 receiver. Both units utilizes a belt clip.

The idea is to take the mono signal of a G3 receiver, make dual mono to be able to listen in both sides of the headphones and that the amplifier is powerful enough to bring up the signal to a comfortable level.

Stereo/dual mono switch is found on the inside.

In order to make dual mono from it, you need to open the P2 and toggle a little switch inside of the unit.

The output volume is fine unless you use high impedance studio headphones. All in all this unit solves all the pitfalls of using a regular G3 receiver as an IEM.

Note: I had to send back the unit as it didn’t last one day in the field, so just received a second one and with 3 years warranty I do really hope that I was just unlucky with the first unit.

Hopefully this gave some ideas how to improve your regular Sennheiser G-series wireless for IEM purposes.

Links to Behringer Powerplay P2:

thomann, which were kind enough let me change the unit without additional shipping costs.

US Amazon / German Amazon

Links to passive TS to TRS adapter (the quieter 2 dollar/euro dual mono solution):

US Amazon / German Amazon