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User Manual for Cloud USA 46-50T 4-Zone 2 U Rackmountable Mixer Amplifier Click to enlarge the picture
Contents of the user manual for the Cloud USA 46-50T 4-Zone 2 U
- Product category: Mixer/Amplifiers Cloud USA
- Brand: Cloud USA
- 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 Cloud USA Mixer/Amplifiers
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User manual for the Cloud USA 46-50T 4-Zone 2 U 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 Cloud USA 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 Cloud USA 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 Cloud USA product will considerably shorten its lifespan!
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Product description The 46-50T 4-Zone 2 U Rackmountable Mixer Amplifier from Cloud USA combines simple control of background music, microphone paging, and power amplification for up to four zones in a single unit. It is suitable for use in many types of premises, such as pubs, bars, clubs, leisure, and fitness centers, shops, offices, hotels, and more. It has six stereo line inputs and two microphone inputs; one mic input can be configured for paging purposes. Each line and mic input has its own preset sensitivity control on the rear panel, and each mic input additionally has HF/LF EQ adjustment to optimize the inputs for better clarity.
The 46-50T has four mono zone outputs, each being driven by a 50W (nominal rating) power amplifier stage. Pre-power stage outputs (0 dBu, unbalanced) are also provided for Zones 1 and 2. Line 6 input may be set to have priority over any other selected music source in Zone 1, to facilitate connection of a jukebox, digital sound store, or similar device. The priority feature has selectable release times, to allow a smooth return to the original music source.
Any or all of the outputs may be configured as high impedance, allowing the 46-50T to drive 70V-line loudspeaker systems with the addition of an optional 4-channel, internally-fitting transformer module. Alternatively, single transformers are available as standard accessories for external connection. If less than four separate zones are required, the power amplifier stages for Zones 2 and/or 3 may be fed with the program from Zone pre-amp sections 1 and/or 4 respectively, doubling the amplifier power available. The front panel provides separate user controls for adjusting the level of each mic input, music source selection, and music level, for each zone. Preset controls for HF and LF EQ adjustment of each zone output are also fitted.
The mixer amplifier is compatible with all Cloud PM Series paging microphones. The paging mic input can be configured to suit most OEM paging systems. Zone selection for paging is via short-to-ground access connections, and the unit may be configured by internal jumper for automatic music ducking (mic-over-music priority), triggered by VOX control. Furthermore, this mixer amplifier features a Facility Port that allows remote input plates of various types (sold separately) to be connected so that mic and/or line sources such as radio mics, DJ mixers, iPods, laptops, or other audio sources can be connected in the zone itself. A remote Music Mute facility is provided, which can be used to satisfy the requirements of the Local Fire Officer. Compatibility - With Standard Cloud Remote Control Panels: RL Series (music level) and RSL Series (music level and source selection), per-zone
General - 2 U 19" rack mounting unit
- Eight input (6 x line, 2 x mic) mixing amplifier for four zones
- Provides flexible music, paging, and announcement facilities in each zone
- Dynamic clip limiting in power amplifier stage
- Zones 1 & 2 auxiliary line level outputs (pre-power amplifier), for connection of additional external amplifiers
- Front panel user controls for music source, music level, and level of each microphone, for each zone
- Front panel preset controls for HF/LF EQ for each zone output
- Six (unbalanced) stereo line inputs with individual gain trim controls
- Contact closure access port for paging zone selection
- Selectable VOX-triggered mic-over-music priority
- Sensitivity and HF/LF EQ adjustment for mic input (rear panel)
- Selectable Line 6 priority in Zone 1, with choice of release times
- Slave Mode: Two power amplifier stages may be fed from a single program source
- Zone 1 Facility Port for connection of optional LM-1 (mic/line) or DM-1 (dual mic) remote input plates
- Facility Port may also be used as additional balanced line input to Zone 1
- Selectable 65 Hz high-pass filter per-output (for use with 70V line systems)
- Music mute control input (N/O or N/C) for interface to emergency system
- EQ cards (sold separately) to suit various popular installation loudspeakers may be fitted in any or all outputs
- Thermostatically-controlled fan cooling
Table of Contents
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Technical parametersCloud USA 46-50T Specs | | | Frequency Response | 20 Hz to 20 kHz, +/-0.5 dB | | Distortion | <0.03%, 20 Hz to 20 kHz | | Sensitivity | 195 mV (-12 dBu) to 2.0 V (+8 dBu) | | Input Gain Control | 20 dB range | | Input Impedance | 47 kOhms | | Headroom | >20 dB | | Noise | -90 dB (0 dB gain, 22 Hz to 22 kHz) | | Equalization | HF: ±10 dB @ 10 kHz
LF: ±10 dB @ 50 Hz | | | | Frequency Response | 100 Hz -3 dB (fixed filter) to 20 kHz ±0.5 dB | | Distortion | <0.05%, 20 Hz to 20 kHz | | Gain Range | 10 to 50 dB | | Common Mode Rejection | >70 dB @ 1 kHz | | Input Impedance | >2 kOhms (balanced) | | Headroom | >20 dB | | Noise | -128 dB EIN 22 Hz to 22 kHz (Rs = 150 Ohms) | | Equalization | HF: ±10 dB @ 5 kHz
LF: ±10 dB @ 100 Hz | | | | Low Impedance | 4 Ohm Load: 50 W
8 Ohm Load: 35 W | | Auxiliary Output | Zones 1 & 2: 0 dBu (unbalanced) | | Outputs | 100 V-Line Balanced: 250 Ohms minimum load
70 V-Line Balanced: 125 Ohms minimum load
(with optional CL-4160 module fitted internally) | | Amplifier Protection | Dynamic clip protection, VI limiting, DC offset, thermal & switch-on delay | | Cooling | Variable speed DC fan | | | | Power Input | 115 VAC ±5% or 230 VAC ±5% | | Fuse Rating | 115 V: T6.3AH
230 V: T3.15AH | | Fuse | Type: 0.7 x 0.2" (20 x 5 mm), 250 V | | Dimensions | 19 x 3.5 (2 U) x 15" (48 x 8.9 x 38 cm) | | Weight | 17 lb (7.7 kg) |
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