All audio processing in this meeting room is handled by a centrally-located Dante-enabled DSP. The RDL DD-BN22 Bi-Directional Mic/Line Dante Interface provides inputs for up to two microphones and analog outputs to feed the two portable active loudspeakers. Each XLR input provides three switches that are set from the front of the unit before the cover plate is installed. One switch enables or disables P48 phantom; the second switch selects the mic or line gain range; the third switch sets the gain. Rear-panel switches set each XLR output to mic or line level.
DIFFERENT BGM SOURCES DISTRIBUTED TO 4 OFFICES
Format-A Audio Distribution with Local Decora-Style Active Loudspeaker
This multi-source background music system uses RDL Format-A products to simplify system design and installation. An RU-TPS4A Active Sender / Distributor converts up to three conventional balanced or unbalanced analog audio signals to Format-A and distributes the audio and operating power over a four pair UTP (CAT5 or better) cable to the four listening stations. Each listening station consists of a D SERIES-PSP1A Decora-Style Active Loudspeaker mounted in a single gang North American electrical box (or RDL WB-1U international wall box). A rear-panel switch set during installation selects which of the three audio sources is amplified by the powered speaker. The system is expandable to up to 160 listening stations using additional distribution amplifiers.
3 SELECTABLE MUSIC CHANNELS
Audio Distribution with Source Selection and Local Decora-Style Active Loudspeaker
styles of music are distributed throughout this office complex over a combination Danteâ„¢ audio network and RDL Format-A distribution. An RU-NFD Network to Format-A Interface/Distributor is used to convert the networked audio sources to Format-A. Audio and power is supplied to a source selector and active speaker in each office through a dedicated CATx cable. A D-Series-TPRX3A Source Selector and a D-Series-PSP1 Active Loudspeaker installed in each office allow the employees to listen to any of the three types of music.
FORMAT-A SOURCE SELECTOR & IN-WALL AMPLIFIER
Distribute Three Audio Sources to Multiple Locations Over UTP Cable
Three styles of music are distributed to various rooms in this facility over CAT 5 cable by an RU-TPS4A Format-A Active Sender / Distributor. A D Series-TPRX3A Source Selector and D Series-PA3 Audio Amplifier installed in each room allow the occupants to listen to any of the three types of music provided or to listen to their own program material simply by plugging their MP3 player into the front-panel input on the D-PA3 amplifier. The front-panel local input overrides the distributed audio.
DISTRIBUTED AUDIO FOR MASSAGE PARLOR
SourceFlex System Provides Individual Room Source Selection and Volume Control
The SourceFlex audio system provides individual audio source selection and volume control in each area. An external power amplifier powers the speakers in the larger waiting room. The massage room speakers are powered by room amplifiers built in to the SourceFlex Decora-style wall controls. Three sources are shown connected to the SAS-8i rackmounted controller (CD player, Satellite receiver, MP3 player) which accommodates up to 8 selectable sources plus a paging input. Stereo sources are converted to mono using RDL TX-J2 modules. A paging microphone is preamplified using an RDL STM-1 to feed the SAS-8i line-level paging input.
Clients select the source and set the volume on a D-SFRC8 wall control with integrated 3.5 W RMS power amplifier. The receptionist selects the source and adjusts the volume in the larger lobby area. A D-SFRC8L wall control is used to choose the audio source. It provides a line-level output to an external RDL RU-PA40D audio amplifier with integral VCA. An RDL D-RLC10 rotary encoder-type VCA control adjusts the lobby audio level. The reception station is equipped with a push-to-talk button used to page all the listening areas. The SAS-8i Controller powers up to 4 listening stations, and provides connections to multiple SAS-8C 8-station expansion chassis. There is no practical limit to the number of possible listening zones.
MONO AUDIO FORMAT CONVERSION
Balanced Audio Amplification for a Long Cable Run Connecting Unbalanced Equipment
The STA-1M Mono Line Amplifier is used to balance an unbalanced signal and amplify it to +4 dBu balanced for a long cable run. The TX-1A at the receiving end provides transformer isolation, adjustable attenuation and format conversion to match the unbalanced equipment input. Note: The STA-1M input may be wired for balanced or unbalanced operation.
STEREO AUDIO FORMAT CONVERSION
Balanced Audio Amplification for Long Cable Runs between Unbalanced Equipment
The STA-1 Dual Balanced/Unbalanced Line Amplifier is used for conversion of an unbalanced stereo signal to balanced and to amplify the signal to a balanced +4 dBu for transmission over a long cable run. The STA-1 is a dc coupled line-level preamplifier that provides exceptional audio quality in any format conversion application. The TX-A2D provides passive balanced to unbalanced conversion and transformer isolation of the stereo signal for connection to the -10 dBV inputs of a consumer amplifier.
The background music (BGM) audio for the retail store is connected to an ST-VCA3 Voltage Controlled Amplifier that is controlled by an
DS-RLC3 Remote Level Control. The DS-RLC3 features 4 preset levels, set by the installer, providing the retail staff with 4 different volume
choices to accommodate varying ambient audio levels. The DS-RLC3 is mounted in a single gang box with an RDL CP-1S Stainless Steel Cover
Plate. The audio from the ST-VCA3 is routed to the FP-PA35A Power Amplifier with Power Supply which powers the overhead speakers in the store.
The FP-PA35A features an integral audio compressor that controls clipping.
Installed UTP (unshielded CAT5, CAT6 or similar) cable is used to distribute facility-wide paging to multiple floors or zones. The three paging sources for this multiple story building are fed to the RDL TX-TPS3A Active Three Pair Sender. Its RJ45 output is fed to a twisted pair receiver on one floor, then in turn to additional receivers on the other two floors. By setting each TX-TPR1A receiver to a different receive pair (A, B or C) each floor receives its own paging source. An All Call initiated at the main paging station will page all floors simultaneously. All connections use UTP terminated with RJ45 plugs. A TX-TPR1A Active Single Pair Receiver on each floor delivers line-level paging audio to the local amplifier. Each Format A twisted pair receiver bridges the UTP cable, allowing the source signal to continue on to multiple receivers. The receivers are powered from the TX-TPS3A sender. (Note: If the total distances between the receivers exceeds the recommended cable length for the cable type used, one or more additional power supplies may be required. If needed, an additional power supply may be connected to any of the receiver modules. Consult the Format-A twisted pair data, or RDL technical support for more information.)
AUTOMATIC POWER CONTROL OF RETAIL AUDIO SYSTEM
Conserve Energy and Save Cost by Automating System Power-Up and Power-Down
To conserve energy and reduce operating costs, the RDL FP-ECC1 Energy Conservation Controller is used to automatically power up the
background music system in this retail store when needed and to power down the equipment when not needed. A magnetic switch on the door is used as a trigger to switch the system on. Once on, an occupancy sensor (motion detector) is used to monitor activity in the space and hold the system in a powered state. After a switch-selectable time period of 15, 30 or 60 minutes of no activity (motion), the FP-ECC1 will turn the BGM system off. No operator intervention is required to power the system on or off. A TX-J2 is used to provide a balanced mono sum of the background music receiver output. The D-ECR1L Power On/Off and Level ControlRemote allows for manual power-up/down operation of equipment controlled by the FP-ECC1 and provides a convenient remote volume control for the RU-PA40D 40 Watt Stereo Power Amplifier.
Notes: 1] A larger audio amplifier may be used in larger systems; 2] If the RU-PA40D is located with the BGM receiver, the TX-J2 is not required.
In this application, an RDL HD-MA35U 35 Watt Mixer Amplifier is used for background music and microphone paging. An RDL STD-150 Passive
Audio Combiner/Divider – 150Ω combines signals from 2 dynamic or condenser microphones and feeds the paging input of the mixer amplifier.
A background music source is inserted into any line-level input. The Mixer Amplifier can be set to fade down (duck) the background music
during a paging event. Automatic ducking is enabled usng the ducking selectors, sensitivity and release delay adjustments on the rear panel. An
RDL RLC10K Remote Level Control is provided to adjust the output level of the amplifier. This remote control is designed to be mounted in a
standard US single gang electrical box (or RDL WB-1U Universal Wall Box for international installations) with an RDL CP-1 Cover Plate. Bass and
Treble tone controls are provided on the amplifier front panel.
The RDL HD-PA35U 35 Watt Power Amplifier is equipped with a single unbalanced stereo summing input for connecting a background music
source. This amplifier includes an analog compressor/limiter allowing it to produce clear audio output levels that normally require an amplifier
with a much higher output power rating. The HD-PA35U shuts down (standby “sleep” mode) when audio is absent and automatically turns on
when needed. In this application, an RDL RLC10K Remote Level Control is provided to adjust the output level of the amplifier. This remote
control is designed to be mounted in a standard US single gang electrical box (or RDL WB-1U Universal Wall Box for international installations)
with an RDL CP-1 Cover Plate. Bass and Treble tone controls are provided on the amplifier front panel.
An RCX Room Combining System allows independent audio systems in up to five separate zones to be combined as one single system or to be combined with one or more adjacent zones. The funeral home in this example has a public space that may be divided by partitions into two or three separate areas. Each of these three zones is equipped with an RCX-2 Room Control to select between local audio sources or background music, and to adjust speaker volume in the zone. Local mic and/or line-level audio sources connect through the RCX-J3 Audio Input Plate. When partitions are opened, the RCX-5C Controller is used to combine the audio inputs and controls to feed all the speakers in the combined area. The FP-PA20A 20 Watt RMS Audio
Power Amplifier drives 70 Volt speakers in each zone.
A stereo unbalanced audio signal from the house audio system is summed and converted to a balanced mono signal using the TX-J2 Unbalanced Input Transformer. The patio is equipped with a DS-CIJ3 Consumer Input Jack DecoraÂ® plate that provides connectivity for an MP3 music player or other stereo audio source. Source selection is controlled by the house audio system and volume is controlled using the house audio system and/or the MP3 player, if it’s in use. An RDL FP-PA20A 20 Watt 70 Volt Audio Power Amplifier powers four 70 Volt outdoor rock speakers in a patio seating area. Each speaker is tapped at 5 Watts, for a total of 20 Watts. Using a 70 Volt system allows for the use of smaller cable sizes which reduce system costs and
simplify the installation. An RDL FP-PA20B 20 Watt 25 Volt Audio Power Amplifier may be used in place of the FP-PA20A if a 25 Volt system is desired.
A 70 V audio signal is being distributed to multiple zones in a facility. The RDL TX-70A provides for the expansion of the existing 70 V system by converting the 70 V signal to an unbalanced line level signal. The unbalanced audio signal feeds the FP-PA20A 20 Watt 70 V Audio Power Amplifier, which powers the speakers in the additional zone. The TX-70A is equipped with a level trimmer for achieving optimal signal level.
This system demonstrates how an auxiliary 70 V paging system can override the loudspeakers from a local 70 V background music system
(BGM) using the TX-PCR1 Paging Controlled Relay.
In normal operation, the BGM 70 V speaker line will route through the normally closed contacts of the TX-PCR1 to the local 70 V loudspeakers.
The auxiliary 70 V system (in this case the Paging/Announcement System) feeds both the 70 V input and the normally open contacts on the
relay unit (TX-PCR1). When a signal is present on the auxiliary 70 V line, the relay unit senses the signal and throws the DPDT relay routing the
auxiliary amplifier to the local loudspeakers.
BASIC PAGING OVER BACKGROUND MUSIC
User-Controlled Voice-Over Paging with 70 V Amplification of BGM and Paging
This system allows a push-to-talk tabletop microphone to interrupt background music during paging. The system can be set up to completely remove the background music or to simply duck the music to a preset level. The ST-VP2 Automatic Ducking Module allows the end user to dial in exactly how much ‘ducking’ of the music is desired. The ST-GCA3 Gain Control Amplifier insures consistency of level from the paging source. The system uses a 20 watt 70 V amplifier driving two 70 V speakers each tapped at 10 Watts.
This application distributes program sources, typically music, to two (up to four) different zones using RDL’s SourceFlex system. The stereo outputs from two separate audio sources are converted to balanced mono signals using two RDL TX-J2s. These signals feed SAS-8i SourceFlex Audio Input Chassis inputs. The SAS-8i allows the installer to set the maximum listening level at each station. Each tanning room has an SAS-RC8 Room Control Station that allows customers to select a program source and adjust the audio level. The system shown accomodates up to eight audio sources and supports up to four zones. Additional zones may be added using available RDL control modules.