ROLLS PM351 Headphone Amplifier and Personal Monitor System
The Rolls PM351 More Me Personal Monitor is a personal monitor, mic splitter, and a Direct Box all in one. The PM351 was designed for the stage or recording singer/instrumentalist who needs to monitor their mic signal, an instrument signal and/or the main monitor mix. The PM351 can also pass the mic and instrument signals directly to the mixer via XLR, balanced outputs.
This unit has a 1/4-inch TRS stereo/mono Line Input, a single XLR Microphone input and hard-wired XLR pass-through, and a 1/4-inch stereo/mono Instrument input with two transformer-balanced and isolated XLR Outputs. All three of these inputs are also routed via individual Level controls, to a 1/4-inch and an 1/8-inch (3.5mm) Phone Output. The Mic Through, and Instrument outputs have jumpered Ground Lifts for elimination of ground hum.
The PM351 is ideal for live bands and church musicians, as well as studio musicians and singers. Having the ability to monitor a main mix along with the musician’s voice and their instrument make the PM351 an effective and versatile tool.
PM351 Personal Monitor System
1/4” TRS stereo/mono Monitor Input
XLR Mic Input w/pass-through
1/4” TRS stereo Instrument Input
All mix to 1/4” and 1/8” Outs
Individual Level controls
Stereo balanced Instrument DI outs
Max Input Level: -20 dB XLR, +40 dB Line, +15 dB Instrument
Instrument Input Impedance: 50K Ohms
Instrument Output Frequency Response: 10 - 30 kHz +/- 3 dB
Written By Mike Volkerding President
Freq City Sound Cincinnati,
Another option for getting
yourself an in ear monitor mix is a personal monitor mixer. There are several
on the market. Shure makes the P4M and Rolls has a few options that are about
half the money and are smaller.
The Rolls PM351 allows for
three signals to be mixed through it. For this discussion, you’re a singing
guitar player. Sorry if I’ve offended any one.
You would plug your vocal
mic in to the 351. Plug a cable from the other side of the 351 on to the FOH
mixer or snake stage box. These inputs are a “hard wired through” connection.
It sends the signal straight through the mixer but allows you to grab the
signal to mix to your ears.
You would plug the mic from
your guitar amp (or a Di / Direct out) in to the 351. Plug a cable from the
other side of the 351 on to the FOH mixer or snake stage box.
You now have control over
these two signals in to your ear mix.
Now we need to find a way to
get the whole band in to the mix. This band mix helps you and the band to be
playing the same song (don’t laugh – if we ever talk live, remind me to tell
you what I did the first time out with ears).
Couple ways we could get a
whole band signal:
If your band has a mixer
with a monitor send that’s sending signal to the wedges, you could have that
signal sent to your mixer first – then out the other side to the amp racks. You
now have the ability to mix the band monitor mix, your guitar volume and your
If the mixer you’re using
doesn’t have a monitor out or an aux send open, you could get a splitter and
get the signal before it gets to the
FOH amp racks. Keep in mind – you want the signal before it goes through the
power amp(s). You don’t want it coming out of a speaker output.
Another angle would be an
ambient mic. Put a mic on a stand somewhere out of the way that faces the band.
You’ll have to experiment with it’s placement but it can give you a decent
signal to balance your guitar and vocal against.
The options on the Rolls
PM50s and the PM55 (can also run on a 9V
and the AC wall wart like the 50s).
These can mix two signals. They are more portable than the 351