- Description
Details
The JBL Commercial CSM-21 offers fixed I/O, pre-configured architecture, full stereo or mono operation, flexible routing and control of multiple audio sources, simple front-panel configuration and control without the need for a computer, compatibility with the CSR wall controllers, compatibility with the CSPM paging microphones and optional duplication of audio channels to another device via a Cat5 cable.
The CSM-21 features two stereo music inputs with gain control and clip LEDs, and one stereo output with an active crossover and a dedicated subwoofer output.
Two additional inputs are provided for music override. First, a mic input with phantom power and gain control can be routed to the output zone, ducking the music by a user-configurable amount. Second, a line input allows high-priority ducking of all sources, which is ideal for alarms.
Dedicated controls for music EQ and dedicated controls for global mic EQ allow the frequency content of each input type to be customized independently. LevelGuard™ is provided to retain consistent volumes between the various inputs, and AutoWarmth™ is provided to ensure full fidelity at all zone volume levels.
A Zone Remote port facilitates connection of the CSR wall controllers, which can provide source selection and/or volume control. Source select, music level and mic level can also be controlled on the front panel. For additional control, two logic inputs facilitate page steering and music muting via contact closure.
- Features
Features
- 2 Stereo Inputs
- 1 Mic Input
- 1 Line Input for Priority Audio
- 1 Stereo Output with Dedicated Subwoofer Output
- Quick and Simple Configuration via Front/Rear Panel Controls
- Digital Processor with Analog-Style Control
- Music EQ
- Global Mic EQ
- AutoWarmth™ and LevelGuard
- Optional CSR Controllers
- Contact Closure Control
- Link Bus for Input Sharing
- Security Plate for Front Panel Lockout (included)
- Specification
Type 2 stereo, unbalanced RCA connectors Nominal Sensitivity -10dBV Input Impedance 20k ohms Maximum Input +12dBu Equalization Bass +/- 10dB @ 80Hz, Treble +/- 10dB @ 8kHz, 6dB/Octave Shelf Type Balanced, 5.08 mm, Euroblock connector Input Impedance 2k ohms Noise EIN <117 dB, 150 ohm, DSP band-limited 120Hz-8kHz, BW24 Maximum Input +20dBu Equalization Bass +/-6dB @ 250Hz, Treble +/-6dB @ 2kHz, 6dB/Octave Shelf CMRR >40dB, typically >55dB @ 1kHz Pre-Amp Gain +30dB to +60dB adjustable Phantom Power +48VDC, 10mA Type 1 stereo (Left, Right, Sub), balanced 3.5 mm, Euroblock connector Output Impedance 120 ohm balanced Max. Output Level +20dBu Out Left, Right: 20Hz-20kHz Sub: 20Hz-20kHz (mono summed) In Left, Right: 125Hz High-Pass (BW24) Sub: 125Hz Low-Pass (BW24) Source/Mic Inputs Signal Present LED (turns on at -20dBu),Signal Clip LED (turns on at +10dBu) Frequency Response 20Hz – 20kHz, +/- 0.1dB Dynamic Range 104dB, A-Weighted, 20Hz-20kHz Converter Type Mic input implements dbx Type IV™ Conversion System Sample Rate 48kHz Crosstalk >75 dB THD+N 0.005% typical at +4dBu, 20Hz-20kHz, 0dB gain Direct Input Balanced, 5.08 mm Euroblock connector; Input Impedance: 10k ohms Direct Input Maximum Input: +20dBu; Frequency response: 20Hz-20kHz Music Mute 2-pin 5.08 mm Euroblock connector; Connecting the pins mutes all Source inputs, does not mute Mic input Source Link RJ45, CAT3 or higher. Max length 2.4m Power Consumption 10W Power Requirements 100-240V Thermal fuse in external transformer Dimensions (H x W x D) 1.8” (46 mm) x 19.0” (483 mm) x 7.0” (178 mm) Weight 5.3 lbs (2.4 kg) - Documents
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