User Manual for JBL CSM -21 2 x 1 Stereo Public Address Mixer Click to enlarge the picture
Contents of the user manual for the JBL CSM -21 2 x 1
- Product category: Install Sound Mixers JBL
- Brand: JBL
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for JBL Install Sound Mixers
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User manual for the JBL CSM -21 2 x 1 contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any JBL product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official JBL user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a JBL product will considerably shorten its lifespan!
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Product description The JBL CSM-21 2 x 1 Stereo Public Address Mixer is a digital commercial mixer for conferencing, retail, and hospitality applications. The mixer features two stereo music inputs with bass and treble equalizers and one line input for connecting the mixer to a building's alarm system. It also features one microphone input with phantom power, gain control, and a ducker that can lower the volume of the music when making announcements.
The mixer also features one stereo output with a zone equalizer, an active crossover, and a separate subwoofer out. The unit does not require a computer to operate. Designed with a simple analog style control panel, you can switch between source 1, source 2, and remote control with the turn of a knob. An included security plate can be installed over the front panel to prevent changes to the unit's controls once configured.
The mixer works with optional CSM remote wall controllers, allowing you to remotely adjust the input source and volume level. Additional output zones may be added to the system by connecting multiple CSM mixers together using a Cat5 cable plugged into the unit's RJ-45 link ports. With the above features, the mixer provides flexible options for different sound applications such as in restaurants, retail stores, yoga studios, and other commercial establishments. - LevelGuard
- LevelGuard optimizes the compression of incoming source signals to keep the overall output signal under control. The threshold of the LevelGuard is adjustable by turning the threshold pot on the front of the mixer
- AutoWarmth
- AutoWarmth optimizes the tonal balance and musical character of incoming source signals
- Mic Minimum
- The mic minimum trim pot sets the minimum output volume level for the microphone. The main mic volume control knob will not go below this level, ensuring the microphone can be heard during announcements
- Source 1 Priority and Priority Hold
- The source 1 priority on/off button determines whether audio from source 1 will override audio from source 2. The priority hold pot adjusts the time it takes for the other input sources to take over after the priority source is finished, such as when the music resumes after a page is complete
- Limiter
- A built-in limiter prevents the signal from clipping
- Mono and Stereo Operation
- A push button switches the output of the mixer between mono and stereo
- Music Volume Ducking for Microphone Announcements
- The mixer allows you to adjust the ducking depth for lowering the music volume while using the microphone input for paging or to make announcements. The ducking depth can be set between cutting the music out completely to no ducking at all during announcements
- Remote Controls
- The mixer can be controlled by the optional JBL CSM remote controls CSM-V, CSR-2SV, and CSR-3SV which connect to the mixer's RJ-45 remote port
UPC: 691991401329 In the Box JBL CSM -21 2 x 1 Stereo Public Address Mixer Power Supply Security Plate 2 x Rack Mounting Brackets Limited 5-Year Warranty Table of Contents
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Technical parametersJBL CSM-21 Specs | | | Type | 2 x stereo, unbalanced RCA connectors | | Nominal Sensitivity | -10 dBV | | Input Impedance | 20 kΩ | | Maximum Input | +12 dBu | | Equalization | Bass ±10 dB @ 80 Hz,
Treble ±10 dB @ 8 kHz with 6 dB/octave shelf | | | | Type | 1 x balanced, 0.2" (5.08 mm) Euroblock connector | | Input Impedance | 2 kΩ | | Noise | EIN <117 dB, 150 Ω, DSP band-limited 120 to 8,0000 Hz, BW24 | | Maximum Input | +20 dBu | | Equalization | Bass ±6 dB @ 250 Hz
Treble ±6 dB @ 2 kHz with 6 dB/octave shelf | | CMRR | >40 dB, typically >55 dB @ 1 kHz | | Preamp Overall Gain | +30 dB to +60 dB adjustable | | Phantom Power | +48 VDC at 10 mA | | | | Type | 1 x stereo (left, right, sub) balanced 1/8" (3.5 mm, Euroblock connector) | | Output Impedance | 120 Ω balanced | | Maximum Output Level | +20 dBu | | Crossover Frequencies |
Left and right in: 125 Hz high-pass (BW24)
Sub in: 125 Hz low-pass (BW24)
Left and right out: 20 to 20,000 Hz
Sub out: 20 to 20,000 Hz (mono summed) | | LED Indicators | Source inputs:
Signal present LED (turns on at -20 dBu)
Signal clip LED (turns on at +10 dBu)
Mic input:
Signal present LED (turns on at -20 dBu)
Signal clip LED (turns on at +18 dBu) | | | | Frequency Response | 20 to 20,000 Hz, +/-0.1 dB | | Dynamic Range | 104 dB, A-weighted, 20 to 20,000 Hz | | Converter | Mic input implements dbx Type IV conversion system | | Sample Rate | 48 kHz | | Crosstalk | >75 dB | | THD & Noise | 0.005% typical at +4 dBu, 20 to 20,000 Hz, 0 db gain | | | | Direct Inputs | 1 x Balanced, 1/4" (5.08 mm) Euroblock connector
Input impedance: 10 kΩ
Maximum input: +20 dBu
Frequency response: 20 to 20,000 Hz | | Mute | 1 x 2-pin 1/4" (5.08 mm) Euroblock connector
Connecting the pins mutes all source inputs, does not mute mic input. | | Paging | 1 x 2-pin 1/4" (5.08 mm) Euroblock connector
Connecting the pins will assign a page to the output zone | | Link | Source: 1 x RJ45 port requires CAT3 cable or higher with maximum length 7.9' (2.4 m)
Main:1 x RJ45 port requires CAT3 cable or higher with maximum length 7.9' (2.4 m) | | USB | 1 x USB Type B port for firmware updates | | | | Power Consumption | 10 W | | Power Requirements | 100 to 240 V thermal fuse in external transformer | | Rack Mountable | Yes with included brackets | | Dimensions (H x W x D) | 19.0 x 1.8 x 7.0" (48.3 x 4.6 x 17.8 cm) | | Weight | 5.3 lb (2.4 kg) | | | | Package Weight | 7.4 lb | | Box Dimensions (LxWxH) | 22.0 x 11.2 x 2.5" |
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