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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. | User's manual [5,41 MB]
LD Systems zone 423 2-Zone-Mixer
The ZONE 423 is a full featured zone mixer with 4 line and 2 microphone channels, that can be assigned to a master and a zone output, as well as inputs for an external emergency announcement system and remote-controlled switching mute. Through versatile connectivity, the compact 2U rack device is the perfect control centre for PA systems in food outlets, clubs, hotels, fitness centres, and is also excellent for presentations and DJs.
In addition to the two balanced microphone inputs with variable Gain and Talkover level,12V-phantom power, and a shared 3-Band-EQ, the ZONE 423 offers Line, Phono-, and Aux-stereo connections in RCA format, a FOH-input with balanced stereo jack plugs as well as a USB and 3.5mm mini jack. The USB-port is used as a stereo input and output and allows the mixer to be used as an external audio interface. The four input channels have individual gain controls with signal and peak value display, 45 mm faders for adjusting the volume and cue buttons.
The master and zone sections each have their own EQ, balanced XLR and unbalanced RCA outputs: the master output via terminal block connectors and the zone output using a mono sum switch, and 100 Hz high-pass filter. The stereo level indication can be set to master or zone, and the maximum output level can be preset for both on the back of the mixer. In addition to an adjustable headphone connection for pre-listening, the ZONE 423 also has a recording output.
- Type: stereo
- Number of Zones: 2 (Master, Zone)
- Installation Height: 2U
- Total Input Channels: 6 (2x Mic, 1x Line/Aux, 2x Line/Phono, 1x Line/FOH)
- Frequency Response: 20 - 40.000 Hz
- Microphone Channels: 2 (with phantom power 12 V)
- Microphone Channel Connections: 6.3 mm stereo jack (balanced), XLR / 6.3 mm jack (Combo)
- Microphone Channel Controls: Gain, On/Off, 1 x EQ Hi, 1 x EQ Low, 1 x Talkover, 1 x Talkover Level
- Microphone Channels Display Elements: On-LED
- Microphone Channels Input Impedance: 4 kOhm
- Microphone Channels Input Sensitivity: 8 mV
- Microphone Channels THD: 0,07 %
- Line Channels: 4 (Input 1: USB/Line, Input 2 + 3: Line/Phono/CD, Input 4: Line/FOH)
- Line Input Connectors: Input 1: 2 x RCA + 3.5 mm stereo jack + USB, input 2 + 3: 4 x RCA, input 4: 4 x RCA + 2 x 6.3 mm jack
- Line Channel Controls: Gain, Source, Cue, Level, Enable FOH
- Line Channel Display Elements: Signal/0 dB-LED, Cue-LED
- Line Channel Input Impedance: 6 Kohm (Phono 60 kOhm)
- Line Channels Input Sensitivity: 1 V (Phono 10 mV)
- Line Channels THD: 0,03 % (Phono 0,05 %)
- input sensitivity AUX/Line (3.5 mm stereo jack): 3 V
- Line Outputs: 3 (Master - Stereo, Zone - Stereo/Mono, Rec - Stereo)
- Output Connectors Master: 2 x XLR (balanced), RCA (2 x), Terminal Block
- Master Controls: Level, EQ HI, EQ Mid, EQ Low, Max. Level
- Master Display Elements: 2 x 10 segment level meter (switchable Master/Zone)
- Master Output Levels: 21 dBu (balanced), 18 dBu (unbalanced)
- Zone Output Connections: 2 x XLR (balanced), RCA (2 x), Terminal Block
- Zone Controls: Level, Source Input 2 - 4/Mix, EQ Hi, EQ Low, Max Level, 100 Hz High Pass, Mono
- Zone Display Elements: 2 x 10 segment level meter (switchable Master/Zone)
- Zone Output Levels: 21 dBu (balanced), 18 dBu (unbalanced)
- Output Connections Rec: 2 x RCA
- Headphone Output: 1
- Headphone Out Port: 6.3 mm jack stereo
- Headphone Output Controls: Cue Volume
- Headphone Output Voltage: 1,2 V 32 Ohm
- Additional Inputs: 2 (Emergency Input, Output Mute)
- Connections Additional Inputs: Terminal Block
- Additional Input Controls: Level Emergency Input
- Input Sensitivity Emergency Input: 5 V
- Additional Controls: power switch
- Operating Voltage: 220 - 250 V AC, 50 Hz
- Power Socket: IEC power socket
- Power Consumption (max.): 22 W
- Fuse: T 500 mAL / 250 V
- Dimensions (W x H x D): 483 x 89 x 210 mm
- Accessories Included: terminal blocks, power cable, operating instructions
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![]() *6 Input 21 Output Matrix *Allocate BGM Source to Desired Output Zone *Clear LED/LCD Visual Display Shows Status of Each Area/Zone *Interface for Remote Zone Controllers L-500(21 Zones) *Interface for Remote Paging Microphones RM-500(4 No.) *Adoption of RS-422/RS-232 Communication Method Supporting Long Distance *Conveient Connection with 7-Ch Power AMP with Adoption of Lump-sum Output terminal *Power Source: DC 24V *Weight: 4.3kg/9.5Ib *Dimensions(W×H×D): 482×132×380mm/19×5.2×15in
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Power Output Level: QD4240
8ohm (Quad Ch) 40W
4ohm (Quad Ch) 60W
8ohm bridged mono 120W
Input Sensitivity (8ohm, 1kHz) 0.775Vrms
Input Impedance 20kohm Balanced
Slew Rate (8ohm, Full Swing) ±30V/?sec
Frequency Response (±0.5dB) 20kHz ~ 50kHz
T.H.D. (f=20Hz~20kHz, Half Power) 0.03%
Signal to Noise Ratio 105dB
Damping Factor (8ohm, 1kHz) 100
Rasidual Noise -85dB
Channel Separation (8ohm, 1kHz) 80dB
Voltage Gain (4ohm) 26dB 29dB 32dB
Power Source 100-120VAC or 220-240VAC ; 50/60Hz
(supplied AC mains transformer depends on country requirements)
Power Consumption 300W 420W 770W
Weight 11.5kg/25.3lb 15.5kg/34.2lb 17kg/37.5lb
Dimensions 482(W) x 88(H) x 369(D) mm
/19(W) x 3.5(H) x 14.5(D) in
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The MZ-372 allows multiple audio sources (19 total) to be mixed, muted, and routed to 2 redundant outputs, controlled by familiar volume sliders and assignment buttons. Input signals can be inserted via 6 audio channels, each consisting of 2 sets of unbalanced RCA stereo pairs, and 6 XLR inputs for a total of 12 sets of RCA inputs and 6 XLR inputs. In addition, channels 2/3/4 can be set to accommodate phono-level signals for use with a turntable. Lastly, and located conveniently on the front panel, one additional XLR input is available driving a studio quality mic preamp and ducking circuit for easy voiceover and announcement work.
Multiple Zone Outputs
Twin outputs each feature a combination of balanced XLR or RCA unbalanced connectors for easy integration into virtually any audio system. This flexibility allows combinations of microphones, CD/DVD/Blu-ray players, instruments - or any other audio source - to be selected or muted, and sent simultaneously to the dual outputs, each with it’s own volume control. Finally, the convenient "Talkover” function will automatically lower any mixed channel source so the microphone connected to the front panel can easily be can be heard in whichever zones you choose.
Easy, Immediate Control
Familiar volume sliders, switches/buttons, EQ knobs, and mute buttons make the MZ-372 simple and fast to operate and set up. There is even a master recording stereo output, which can send audio to an external recorder which makes event or music performance capturing easy. The Booth outputs provide another stereo feed with independent control for additional monitoring.
- Maximum flexibility for audio routing, input selection, and multiple redundant output flow, perfect for integrator, musical instrument, and residential applications
- Multiple inputs include 12 sets of stereo RCA-type, 6 selectable mic/line XLR, and a dedicated front-panel XLR mic input; 19 total input "sets”
- Channel audio sources can easily be selected, muted, and contoured via simple volume sliders, toggle switches/buttons, and knobs
- Two redundant output channels each with stereo XLR balanced and unbalanced RCA-type connectors; each with separate volume control
- Separate stereo booth, recording, and headphone outputs each with independent control
- One additional mic-compatible XLR input on the front panel with "Talkover” function automatically lowering source audio
- Independent three-band EQ per each of the 5 channels and a two-band EQ on the additional front panel microphone input
- Compact 3U rack mount design
| REVAMP1680 is a professional 16-channel digital power amplifier with 16 x 80 watts output power @ 4 ohms, but the unit is also bridgeable to 8 x 160 watts @ 8 ohms. This 3 rack units high amplifier with very high channel separation also has a dual analog power supply with toroidal power transformers. The standby power consumption is very low, less than 0.5 watts!
Another smart feature of the REVAMP1680 is the switching mode standby power supply with multiple auto power on/off options. You can power on or power off the unit via a trigger input, audio sense... The trigger input is ideal when you want to switch on the power amplifier automatically using an external AC or DC trigger signal coming from your audio system. The amplifier will be switched on as long as the trigger voltage is present. Alternatively, you can set the power on mode switch to the audio trig position: the amp will automatically switch on when a sufficiently strong audio signal is present at the input and automatically switch off after a few minutes of silence.
This amplifier is equipped with 2 stereo bus inputs with pass through. These bus inputs are ideal when you want to hear the same audio signal in different output zones with the advantages you need less audio cables and the installation can be done very fast.
With its very low standby consumption and the fact the amplifier can easily be integrated in any audio project, the REVAMP1680 will soon become your favourite multi channel power amplifier. |
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