Well suited to a wide range of public and commercial installations, the Rolls RM167 is a single-rack-space mixer with wireless Bluetooth capabilities that allows you to seamlessly mix together three balanced mic/line inputs and four stereo sources and output them to mono or stereo balanced outputs.

Mixer for Retail & Public Installation    1 RU Rackmount Chassis    3 Balanced XLR Mic/Line Inputs    4 RCA Stereo Inputs, Front 3.5mm Input    Bluetooth Input Option for Source 1    2 TRS 1/4" Outputs    Knobs for Levels, Master Volume Control    Bass & Treble Controls for Source Inputs    Switchable 12V Phantom Power    Adjustable Ducking & Priority Settings

• Featuring three XLR microphone inputs with Mic/Line level switches, a convenient send/return Insert jack, and individually switchable +12 VDC phantom power, the RM167 ensures effortless integration and exceptional audio performance.
• Connect up to four stereo sources via RCA connectors.
• Source 1 can be switched to Bluetooth for wireless connectivity to a wide range of computers and mobile devices.
• Discover the added convenience of source 1′s front-panel 3.5mm input, offering even more options for connecting your preferred devices.
• Capture your audio with ease using the pre-master RCA output for recording purposes.

• Experience enhanced functionality with priority talkover capabilities, complemented by adjustable duck sensitivity on microphone one for seamless paging—perfect for jukebox, telephone systems, and more.
• Enjoy complete control over your audio with dedicated level and tone controls for each microphone input as well as individual level controls for source inputs. Fine-tune your sound with bass and treble controls, conveniently available for all sources, while the master output level control allows precise adjustment of all mixed signals.
• For effortless, on-the-fly adjustments, the RM167 also provides a remote volume output jack, allowing seamless connection to a 100-kilohm linear taper potentiometer for use as an external master level control (not included).

Related Questions and Answers

Q: 1. Which Rolls preamps are battery powered?

A: NO LO SE

Q: 2. Can this be re-purposed to be used from an XLR out from the back of my amp (Peavy Vypyr Pro 100) to patch headphones in to monitor the signal being sent from the amp to the mixer board on the bands PA system?

A: If your amp is a XLR Mic level output yes. It will take Line level out also but it will take much less boost to power the headphones. If it is speaker level out you may blow out the preamp.

Q: 3. I'm looking for blend a piezo pickup and condenser mic both mounted on double bass. Does this will works?

A: It might. Give it a try. It is a returnable item.

Q: 4. can this be repurposed and used to pre amp a playback tape head? i know this is unconventional but i just need it to work. HELP!

A: The Rolls MP13 is a mic preamp so it is designed to receive a mic level signal but the output from the playback tape head is a line level signal. It could work, as long as you can control the output level from the tape head so it does not overload the input of the preamp, unless that is the desired effect that you wish to achieve.

Q: 5. Is the case metal or plastic? Any RFI suppression built in?

A: Works Great. Metal case. I used it with an ethernet adaptor and was able to send the audio signal through a schools cat5 wiring for their school PA System.

Q: 6. I have just realised that these are incopatible with my Klark Teknick CT1 Mic Booster as the CT1 requires 48V phantom power and the Rolls MP13 provides 24V. Can you recommend a quiet, affordable alternative?

A: ART Tube MP Preamplifier B&H # ARTUBEMP Single-Channel Tube-Based Hand-Selected 12AX7A Vacuum Tube Variable Input & Output Gain Control Ideal as a Tube DI Box XLR & 1/4" Connections Inexpensive, Professional Performance Exceptionally Low Noise A Staple in Many Studios

Q: 7. Does this provide "plug in" power to the 3.5mm input jack?

A: Yes, the Rolls MP13 will supply plug-in power to the 3.5mm mic input.

Q: 8. How much power does this draw?

A: Rolls does not specify. It is very low ()14-24 VDC. Please refer to the schematic below:a href= http://static.bhphotovideo.com/lit_files/89467.pdf target= _blank http://static.bhphotovideo.com/lit_files/89467.pdf/a

Q: 9. Will this preamp boost an XLR signal a further distance than without using it? I have to cover a distance of ~300ft and am trying to assure no loss of signal.

A: The Rolls Mini-Mic Preamp is not really designed for boosting signal on a long cable run. For 300 feet, you should use high quality shielded audio cables to avoid signal loss and if you do need to increase the gain without adding noise, you might want to try the Cloud Microphones Cloudlifter CL-1 Mic Activator (B&H # CLCL1) which improves signal-to-noise ratio and improves the performance of passive microphone signals by driving stronger, cleaner signals over longer XLR cable runs.

Q: 10. Will this boost an XLR signal a further distance? I have a cable run of ~250ft and am trying to assure that I don't lose a signal.

A: The Rolls Mini-Mic Preamp is not really designed for boosting signal on a long cable run. For ~250 feet, you should use high quality shielded audio cables to avoid signal loss and if you do need to increase the gain without adding noise, you might want to try the Cloud Microphones Cloudlifter CL-1 Mic Activator (B&H # CLCL1) which improves signal-to-noise ratio and improves the performance of passive microphone signals by driving stronger, cleaner signals over longer XLR cable runs.