Roland M-48 Applying a Limiter to the Headphones Output, Adjusting the Line Out Output Level

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Headphones Output and Line Out Adjustments

Adjusting the Headphones Output Level

Here’s how to adjust the output level of the sound being monitored through headphones.

1Turn the PHONES [VOLUME] knob to adjust the headphone output level.

[VOLUME] knob position

Range

MIN–MAX

-Inf dB – +10.0 dB

 

 

2Turn the rear panel [ATT] knob to obtain the most suitable output level.

Adjust the output level as appropriate for the characteristics of the headphones you’re using.

[ATT] knob position

Range

MAX–0 dB

-50 dB–0 dB

 

 

Adjusting the Headphones Output Tone

Here’s how to adjust the tone of the headphone’s lower and upper ranges to achieve comfortable listening.

1Turn the [BASS] or [TREBLE] knob to adjust the tone of the lower range or upper range.

Knob (function)

Range

[BASS] knob

-15.0 dB – +15.0 dB

(adjusts the lower range)

* Center frequency: 120 Hz

 

 

[TREBLE] knob

-15.0 dB – +15.0 dB

(adjusts the upper range)

* Center frequency: 10kHz

 

 

Applying a Limiter to the Headphones Output

When monitoring through headphones, you can protect your hearing by applying a limiter to instantly lower the volume when an unexpectedly loud sound occurs.

1Turn the [LIMITER] knob to adjust the limiter effect (threshold level).

Adjust this so that the indicator above the [LIMITER] knob lights occasionally during the performance.

[LIMITER] knob position

Range

OFF

Off

 

 

OFF–MAX

0.0 dB – -40.0 dB

 

 

*The indicator above the [LIMITER] knob will light when the limiter operates.

*When the limiter is off, clipping noise may occur if the signal sent to the headphones is too great. If this occurs, take the following actions.

•Lower the volume of each group.

•Adjust the [BASS] and [TREBLE] knobs so that their settings are not excessive.

*When the limiter is operating, clipping noise may occur in the headphones, depending on the audio sources being mixed by the M-48. If this occurs, make the following adjustments to minimize the noise.

•Lower the volume of each group.

•Adjust the threshold level.

Adjusting the Line Out Output Level

Here’s how to adjust the output level of the LINE OUT L/R jack.

This allows you to adjust the output level when a floor monitor is connected to the LINE OUT L/R jack.

1Turn the LINE OUT [VOLUME] knob to adjust the output level of the line out.

[VOLUME] knob position

Range

MIN–MAX

-Inf dB – +10.0 dB

 

 

•The limiter acts upon the input signal so as to prevent unexpected surges in the level. However, the actual volume at the final stage is determined by the settings of the PHONES [VOLUME] knob, [ATT] knob, and LINE OUT [VOLUME] knob.

•With certain settings for the output level, the resulting sound could be of a volume level capable of causing permanent hearing difficulties. Do not use this device at high volumes for an extended period of time. If you should experience any loss of hearing or ringing in your ears, you should immediately stop using this product, and consult a medical professional.

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Contents Copyright 2009 Roland Corporation Ferrite core Check the included ItemsMain Features Table of Contents Do not open or perform any internal modifications on Unit Never install the unit in any of the following locationsScrews for attaching the APC-33 all purpose clamp Protect the unit from strong impact. Do not drop itNever climb on top of, nor place heavy objects on the unit Connectors. Rough handling can lead to malfunctions Distance from this unit, or switch them offMove it farther away from the source of interference Can deform or discolor the unitTop Panel Panel DescriptionsPhones Volume knob Line OUT Volume knobControl select section LO Gain button MID Freq buttonRear Panel Placing the M-48 on a Desk at an Angle InstallationAttaching the M-48 to the Top of a Mic Stand Attach the mounting bracket to the M-48If Your Mic Stand has 3/8 inch Threads InstallationItems to use Attach the mounting bracket to the mic standIf Your Mic Stand has 5/8 inch Threads Attach the APC-33 to your mic stand or drum, and fasten Attaching the M-48 to Any Part of a Mic StandMounting bracket BelowSpread the two tabs and open the ferrite core Attaching the Reac Connector CoverAttaching the Ferrite Core Connecting the M-48 to a V-Mixing System Connecting External DevicesConnecting External Devices Connecting the M-48 to an Analog Mixer SystemUnits Connecting Nine or More M-48 Units4000S-3208 Slave Reac device Front speakers 400 FOHRear panel Connecting Input/Output Devices to the M-48Turning the Power Off Turning the Power OnMaking Settings for the M-48 Other settings settings made by the mixing engineer Groups for the drummer Example setup for the DrummerSource level/pan settings Groups for the lead vocalist Example setup for lead vocalistGuitar1 L Guitar2 LSource assign settings Groups for backing vocalist Example setup for backing vocalistsOverhead L Guitar1 L Guitar1 R Guitar2 L Guitar2 RAdjusting the Volume of Each Group Adjusting the MixPress the Volume button Here’s how to monitor just the audio of a specific groupAdjusting the Input Level of AUX Adjusting the Pan of Each GroupUsing the Built-in Ambient Mic Turn the AUX in knob to adjust the AUX in input levelApplying Reverb to Each Group Using EffectsApplying EQ to Each Group Press the Reverb Send buttonAdjusting the Line Out Output Level Applying a Limiter to the Headphones OutputAbout Memory Using the Memory FunctionsStoring Mixer Settings to Memory Store Returning to the Factory Settings Factory Reset Recalling Mixer Settings from Memory RecallTurn off the power p Press the Recall buttonDimensions Main SpecificationsBlock Diagram Troubleshooting Avis Other CENTRAL/ Latin America Information
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M-48 specifications

The Roland M-48 is a versatile and powerful multipurpose digital mixer that has been designed to meet the needs of modern sound engineers and musicians. This state-of-the-art device combines advanced technology with intuitive design, making it an essential tool for live performances, studio sessions, and broadcast applications.

One of the standout features of the M-48 is its 48-channel audio mixing capability. This extensive channel count allows users to mix multiple audio sources with ease, ensuring that every instrument and vocal track is given the attention it deserves. The mixer also supports up to 16 auxiliary outputs, providing flexible routing options for monitors and effects.

At the heart of the M-48 is its digital signal processing (DSP) technology. This allows for high-quality audio manipulation and enhances the overall sound quality of the mixed output. With built-in EQ, compression, and reverb effects, users have the tools they need to craft a polished and professional sound. The M-48 also supports a wide range of sampling rates, including 44.1 kHz and 96 kHz, ensuring compatibility with various audio formats.

Another key characteristic of the Roland M-48 is its ease of use. The user interface is designed for quick access to controls and settings, making it accessible for both beginner and experienced users alike. The color-coded faders and buttons enhance visibility, which is particularly useful in low-light environments. Furthermore, the mixer comes with a comprehensive software package for remote control and deeper audio editing options.

The M-48 also features advanced connectivity options, including USB, Ethernet, and MIDI. This allows for integration with other audio devices and systems, expanding its functionality. Whether connecting to a DAW for recording or to other hardware for live performance, the M-48 provides seamless integration.

Durability is another critical aspect of the Roland M-48. Built with robust materials, this mixer is designed to withstand the rigors of both studio and live environments. Its compact and lightweight design makes it portable, ensuring that users can transport it easily without sacrificing performance.

In summary, the Roland M-48 is a comprehensive digital mixer that combines high channel counts, advanced DSP technology, ease of use, and robust connectivity options. With its impressive range of features, it serves as an invaluable asset for sound professionals across various applications, from live events to studio recordings. Its combination of quality, versatility, and durability makes it a standout choice in the competitive landscape of digital mixers.
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