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CSL4 – Quad‑Channel Digital UHF True‑Diversity Wireless Microphone System

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Four‑channel wireless power for busy stages

The Galaxy Audio CSL4 packs four independent Digital UHF True‑Diversity receivers into a single 1U rackmount chassis. It shares the same high‑performance RF features as the single‑channel CSL with Auto Scanning, RF Spectrum Analyzer, and IR Sync—so you can easily manage multiple transmitters in congested RF environments. With four channels, it’s ideal for multi‑performer setups, theatre, worship teams, and installed sound.

Key Features

  • Quad‑channel digital True‑Diversity receiver with four independent receivers in one 1U rack (19 in) chassis.
  • Auto Frequency Scanning & RF Spectrum Analyzer simplifies multi‑channel frequency coordination.
  • IR Sync pairs each transmitter with its receiver instantly.
  • Up to 1480 selectable frequencies across multiple bands:
    • P‑Band (470–507 MHz) – 1,480 frequencies; up to 18 compatible systems.
    • M‑Band (520–554 MHz) – 1,360 frequencies; up to 17 compatible systems.
    • B‑Band (572–596 MHz) – 960 frequencies; up to 14 compatible systems.
  • 7‑band graphic EQ per channel and customizable display colors (six options) help tailor and identify each channel.
  • 300‑foot (91 m) operating range, digital latency under 3 ms, and 32‑bit‑encrypted modulation for secure transmission.

CSL4 Receiver Specifications

  • Rackmount size: 1U height × 19 in (483 mm) width, 7 in (178 mm) depth; weight 3.34 lb (1,515 g).
  • Outputs: four balanced XLR connectors (one per channel) plus a summed unbalanced ¼‑inch output for simplified cabling.
  • Power requirement: 12 V DC, 1 A.
  • Signal‑to‑noise ratio: ≥80 dB; frequency response 50 Hz–16 kHz; THD <0.5 % at 1 kHz.
  • Digital modulation: 32‑bit encrypted; <3 ms latency; <100 kHz bandwidth; IR Sync.

Optional Transmitters

  • HH48 Handheld Transmitter: cardioid dynamic capsule; PLL‑phase‑locked; LCD display (frequency, battery life, mute); 10 mW max RF output; runs on two AA batteries for about 8 hours.
  • MBP48 Body‑Pack Transmitter: LCD shows frequency, battery status, mute, gain, and RF power; 4‑position input gain; 10 mW max RF output; ~8 hours battery life on two AA cells.

What’s in the Box

  • CSL4 quad‑channel receiver.
  • Four transmitters of your choice (mix and match HH48 handhelds and MBP48 body‑packs to suit your application).
  • Antennas, power supply, and an unbalanced ¼‑inch cable for the combined output.
  • Quick‑start guide.

From multi-singer performances to theatre productions, the CSL4’s four independent digital wireless channels, robust RF features, and professional-grade audio quality ensure reliable operation and flexible sound-shaping in demanding live environments.

Additional information

Weight N/A
Dimensions N/A
FREQUENCY CODE

Frequency B: 572-596 MHz, Frequency M: 520-554 MHz, Frequency P: 470-507 MHz

Configurations

CSL4-HHHHM Four-Channel Digital Wireless Microphone System w/ (4) HH48 Handheld Mics. M-Band, CSL4-HHHSM Four-Channel Digital Wireless Microphone System w/ (3) HH48 Handheld Mics & (1) MBP48 Body Pack Transmitters w/ Headset Mic. M-Band, CSL4-HHHVM Four-Channel Digital Wireless Microphone System w/ (3) HH48 Handheld Mics & (1) MBP48 Body Pack Transmitter w/ Lavalier. M-Band, CSL4-HHSSM Four-Channel Digital Wireless Microphone System w/ (2) HH48 Handheld Mics & (2) MBP48 Body Pack Transmitters w/ Headset Mics. M-Band, CSL4-HHVVM Four-Channel Digital Wireless Microphone System w/ (2) HH48 Handheld Mics & (2) MBP48 Body Pack Transmitters w/ Lavaliers. M-Band, CSL4-HSSSM Four-Channel Digital Wireless Microphone System w/ (1) HH48 Handheld Mic & (3) MBP48 Body Pack Transmitters w/ headset Mics. M-Band, CSL4-HVVVM Four-Channel Digital Wireless Microphone System w/ (1) HH48 Handheld Mic & (3) MBP48 Body Pack Transmitters w/ Lavaliers. M-Band, CSL4-SSSSM Four-Channel Digital Wireless Microphone System w/ (4) MBP48 Body Pack Transmitters w/ Headset Mics. M-Band, CSL4-SSSVM Four-Channel Digital Wireless Microphone System w/ (3) MBP48 Body Pack Transmitters w/ Headset Mics, & (1) MBP48 Body Pack Transmitter w/ Lavalier. M-Band, CSL4-SSVVM Four-Channel Digital Wireless Microphone System w/ (2) MBP48 Body Pack Transmitters w/ Headset Mics, & (2) MBP48 Body Pack Transmitters w/ Lavaliers. M-Band, CSL4-SVVVM Four-Channel Digital Wireless Microphone System w/ (1) MBP48 Body Pack Transmitter w/ Headset Mic, & (3) MBP48 Body Pack Transmitters w/ Lavaliers. M-Band, CSL4-VVVVM Four-Channel Digital Wireless Microphone System w/ (4) MBP48 Body Pack Transmitters w/ Lavaliers. M-Band, CSL4M Four-Channel Digital UHF Wireless Microphone (Receiver ONLY). M-Band

Configurations

CSL4-HHHH
This system includes the CSL4 Quad Receiver, & (4) HH48 Handheld Mic Transmitters, Antennas, 1/4″ to 1/4″ cable, and Power Supply.

Additional products in this configuration:

  • HH48 Dynamic Wireless Handheld Microphone

CSL4-SSSS
This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis & (4) MBP48 Body Pack Transmitters w/ Headset Mics. Antennas, 1/4″ to 1/4″ cable, and Power Supply.

Additional products in this configuration:

CSL4-VVVV
This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis & (4) MBP48 Body Pack Transmitters w/ Lavaliers.

Additional products in this configuration:

CSL4-HHHS This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis, (3) HH48 Handheld Mics & (1) MBP48 Body Pack Transmitters w/ Headset Mic.

Additional products in this configuration:

  • HH48 Dynamic Wireless Handheld Microphone
  • MBP48 Wireless Microphone Body Pack for CSL Systems
  • HS13-UBK Uni Headset

CSL4-HHHV This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis, (3) HH48 Handheld Mics & (1) MBP48 Body Pack Transmitter w/ Lavalier.

Additional products in this configuration:

  • HH48 Dynamic Wireless Handheld Microphone
  • MBP48 Wireless Microphone Body Pack for CSL Systems
  • LV13-UBK Lavalier Mic

CSL4-HHSS This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis, (2) HH48 Handheld Mics & (2) MBP48 Body Pack Transmitters w/ Headset Mics.

Additional products in this configuration:

  • HH48 Dynamic Wireless Handheld Microphone
  • MBP48 Wireless Microphone Body Pack for CSL Systems
  • HS13-UBK Uni Headset

CSL4-HHVV This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis, (2) HH48 Handheld Mics & (2) MBP48 Body Pack Transmitters w/ Lavaliers.

Additional products in this configuration:

  • HH48 Dynamic Wireless Handheld Microphone
  • MBP48 Wireless Microphone Body Pack for CSL Systems
  • LV13-UBK Lavalier Mic

CSL4-HSSS This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis, (1) HH48 Handheld Mic & (3) MBP48 Body Pack Transmitters w/ headset Mics.

Additional products in this configuration:

  • HH48 Dynamic Wireless Handheld Microphone
  • MBP48 Wireless Microphone Body Pack for CSL Systems
  • HS13-UBK Uni Headset

CSL4-HVVV This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis, (1) HH48 Handheld Mic & (3) MBP48 Body Pack Transmitters w/ Lavaliers.

Additional products in this configuration:

  • HH48 Dynamic Wireless Handheld Microphone
  • MBP48 Wireless Microphone Body Pack for CSL Systems
  • LV13-UBK Lavalier Mic

CSL4-SSSS This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis & (4) MBP48 Body Pack Transmitters w/ Headset Mics.

Additional products in this configuration:

 

CSL4-SSSV This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis, (3) MBP48 Body Pack Transmitters w/ Headset Mics, & (1) MBP48 Body Pack Transmitter w/ Lavalier.

Additional products in this configuration:

 

CSL4-SSVV This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis, (2) MBP48 Body Pack Transmitters w/ Headset Mics, & (2) MBP48 Body Pack Transmitters w/ Lavaliers.

Additional products in this configuration:

 

CSL4-SVVV This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis, (1) MBP48 Body Pack Transmitter w/ Headset Mic, & (3) MBP48 Body Pack Transmitters w/ Lavaliers.

Additional products in this configuration:

 

CSL4-VVVV This system includes the CSL4 QUAD Receiver w/ four independent receivers in a single 1U rackmount chassis & (4) MBP48 Body Pack Transmitters w/ Lavaliers.

Additional products in this configuration:

 

Accessories

HH48 Dynamic Wireless Handheld Microphone

HH48 Dynamic Handheld Transmitter for the CSL Wireless Microphone System

MBP48 Wireless Microphone Body Pack for CSL Systems

Body Pack Transmitter for the CSL Wireless Microphone System

LV13-UBK

Unidirectional lapel microphone works with transmitters made by Galaxy Audio®, Shure®, Sennheiser®, AKG®, and Audio Technica®, as well as most other brands of wireless microphone systems.

·         Uni-Directional

·         Lapel / Lavalier

HS13-UBK Uni Headset

Unidirectional headset comfortable wrap-around design goes over both ears and helps ensure that this mic will stay in place. Wired to work with transmitters made by Galaxy Audio®, Shure®, Sennheiser®, AKG®, and Audio Technica®, as well as most other brands of wireless microphone systems.

  • Unidirectional headset microphone

Hooks over both ears

MICCLIPSI

Standard Mic Clip for Handheld Microphones

Antenna Distributor ANT-DISTDC

The Wireless Microphone Antenna Distribution System expands wireless microphone systems only, by splitting one pair of antennas to allow up to four single channel receivers to use the same antennas. 3dB gain compensates for any insertion loss and increases receive signal range (up to 275ft). Low-loss 50 ohm BNC connectors for mounting antenna. Includes rack ears for mounting rack space (1RU) Distributes the antenna for up to 4 Wireless Microphone Systems (PSECTS, CSL, and DHX Series). BNC connectors, single rack space, combines power for up to four wireless receivers as well.
Note: Only works with wireless microphone receivers. This Wireless Microphone Antenna Distribution System does NOT work with In-Ear systems.

 

ANT-PDL

Wireless Directional Antenna used to decrease interference to other equipment.  Frequency range 500-900MHz

The UHF wide-band (500-900 MHZ) directional LPDA (log periodic dipole array) antenna reduces outside interference while providing increased send/receive signal range. Each antenna paddle is matched to 50 ohms impedance with a low-loss BNC connector; 7dBi gain. Professional wireless antenna for permanent or temporary installation; mounts to 5/8″-27 threads.

It is suggested that the angle between the paddle antenna and the thransmitter should be from 90º to 120º. Normally the effective range can reach about 300′.

 

19.69” BNC Cable & Connector Combo

This Includes:
One Wire BNC Connector Cable (Part# CN-BNCPM) and
One 19.69″ (50 cm) RG58 Cable (Part# EXTBNC) for front mounting antenna.

Universal Power Adaptor AS-UA12-14.5

Universal Power Adaptor. The AS-UA12-14.5 supplies 12V DC at 1000mA to Our Wireless Microphone & Monitor systems such as the DHT, DHX, DHTRQUAD, DHXR4, PSE, ECM, ECD, EDX, AS-900, Galaxy Audio AS-1100 & AS-1800 using the common 5.5mm barrel plug with center positive. The universal AC power adaptor comes with 4 different AC plug adaptors, and will accept any input voltage from 100 to 240v AC, 50-60Hz, which means it will work in nearly every country on the planet.

  • 12V DC 1000mA  
  • 5mm PLUG

Converts Systems To Accept 230 VAC.

Specifications

CSL4 SYSTEM SPECS  
Available Frequencies Up to 1480
Frequency Ranges

P-BAND, 1480 frequencies available 

470-507 MHz, The maximum compatible frequencies are 18.

M-BAND, 1360 frequencies available 

520-554 MHz, The maximum compatible frequencies are 17. 

B-BAND, 960 frequencies available

572-596 MHz, The maximum compatible frequencies are 14.

Band Digital UHF
Operating Range Under Typical Conditions, 300′ (92 m), the actual range depends on RF signal absorption, reflection, and interference.
Operating Temperature Range 14° F to 122° F (-10° C to 50° C), battery characteristics may limit this range
   
CSL4 QUAD RECEIVER  
CSL4 Main Frame Size

EIA STANDARD 1 U 

Frequency Pairing IR Sync Transmitter w/ Receiver
Oscillation Synthetic Module Chip
Digital Modulation 32-bit encrypted
Latency Digital Audio Circuit (less than 3ms)
Bandwidth

<100KHz

Sensitivity -6dBm
Signal-to-Noise Ratio >80dB
Frequency Response

50Hz – 16KHz

Sound Processing

7-Band Adjustable EQ

T.H.D.

<0.5% @ 1KHz

Output Connections

Balanced XLR 1 for Each Receiver, 1 Unbalanced 1/4″ for Combined Output 

Power Requirements

12Vdc, 1000mA

Dimensions

1.79″ x 19″ x 7″ (45 x 483 x 178 mm)(HxWxD)

Weight

3.34 lbs (1515 g)

 

 

HH48 HANDHELD TRANSMITTER  
Polar Pattern Cardioid
Element Type Dynamic
LCD Display

 Frequency, Battery Life, Mute

Oscillation Mode PLL Phase-Locked
Digital Modulation 32-bit Encrypted
Max Transmission Power 10mW
Current Drain <130mA
Gain Fixed
Power Requirements

2 “AA” Batteries, alkaline or rechargeable batteries

Battery Life

About 8 Hrs 

Dimensions

10″ x 1.9″ (254 x 49.5 mm)(LxW)

Weight

12.2 oz (345 g)

   
MBP48 BODY PACK TRANSMITTER  
LCD Display

Frequency, Battery Life, Mute, Gain, RF Power

Oscillation Mode PLL Phase-Locked
Digital Modulation 32-bit Encrypted
Input Gain 4 Position Line to Mic
Max Transmission Power

10 mW

Current Drain

<130mA

Power Requirements

2 “AA” size alkaline or rechargeable batteries

Battery Life About 8 Hrs
Dimensions

3.31″ x 2.44″ x 1.04″ (84 x 62 x 26.4 mm)(HxWxD)

Weight 2.6 oz (74 g)
 

Downloads

Quickstart Guide ( PDF – 5.2 MB )
Manual ( PDF – 10.4 MB )
Pamphlet ( PDF – 9.30 MB )
Frequencies ( PDF – 0.00 MB )
EQP Files ( 0.00 KB )

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