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
Let's talk a little bit about how to get a signal to your hardwired in ear monitor amp. On standard analog boards you have a number of auxiliary sends. If you look at a channel strip you'll see the fader, EQ section, and AUX send section. You'll need one of those auxiliary sends to be open in order for you to get a personal mix. AUX SENDS are commonly used for sending reverb, delay or a monitor mix. If you have an open auxiliary send that will be your mix. On the back of the console you'll see the AUX outputs. Take that output whether it be a tip ring sleeve (TRS) or an XLR from that output straight to your hardwired in ear monitor amplifier. The mix of instruments and vocals will be done at the console. You'll have overall volume control at your amp.
Let's say you've chosen AUX 1 as your mix. You want more guitar? Go to the guitar channel and on that channel turn up AUX 1. Repeat this for every instrument plugged into the console to create your own personal monitor mix.
It's pretty much the same on the new digital consoles and rack mixers only you have a lot more flexibility. Many digital consoles and rack consoles for ipad have as many as 10 AUX sends where our old analog boards, we were lucky to see 6 . You also have the ability within your AUX SEND to EQ your mix, ad reverb etc. The process is essentially the same though. Your AUX SEND is your in ear monitor mix.
There are a lot of creative ways to get a mix with a personal amp even if you don't have an AUX SEND on your console. Several of the monitor amps have two inputs, some three. They also have through-puts. Meaning, you plug your microphone in to the amp and then out of the other side on to the console. You now have control of that microphone volume in your ear. Now we need to consider what goes into the other input of the amplifier. Let's say you're mixing console doesn't have enough open AUX SEND's to give you your own personal monitor mix.
Get a split from what ever monitor mix their sending and plug it into the other side of your amp. Now you have an overall monitor mix and you were vocal as loud as you want.
Let's just take a split of the front of house mix and run it in to channel 2. Now you have a nice balanced full band signal to mix in your vocal and as needed.
I'm just thinking out loud here. How about we set a microphone in the room and run it into the second channel of your monitor amp. Now you pick up everything on stage with one microphone and balance your vocal and as you like.
I'm sure there are several more ideas we could come up with. They all have their pluses and drawbacks but what I'm trying to get through is the versatility of a personal monitor amp.
If you guys come up with anything new get it to me and I'll add it to our list.