Cloud Electronics is a solely-owned British company based in Sheffield that designs, engineers and manufactures high- quality audio mixers, zoners, multi-channel amplifiers, and headphone distribution systems including the DCM-1 Digitally Controlled Mixer and the renowned VTX series of amplifiers. The company’s commercial audio products are designed with installation applications in mind and all are built and tested to the most exacting professional standards, to ensure outstanding reliability and consistent performance. Cloud Electronics products are distributed worldwide under the “Cloud” Brand.
Overview
4 Channel 70/100V Digital DSP Amplifier
Cloud CV4250 digital amplifier is a versatile 4-channel power amplifier of advanced design, able to drive 100 V/70 V loudspeaker systems directly. It is ideal for sound reinforcement applications in the retail, leisure, hospitality, commercial or industrial sectors. Large installations using multiple amplifiers will benefit from the amplifiers’ network connectivity: each amplifier may be configured individually, controlled and monitored remotely over a standard Ethernet network.
The CV4250 includes an on-board, user-configurable DSP permitting great flexibility of internal architecture, and a wide variety of remote control options including Ethernet, RS-232 and DC: the latter providing compatibility with standard Cloud remote control plates. It is not necessary to either connect a computer nor remove the lid to access internal jumpers to set primary configuration parameters such as input routing, which may be done using rear panel DIP switches. Where more advanced configuration options are needed, they can be easily accessed through the internal web server and an Ethernet connection to an external device.
Flexible Output
The CV4250 offers a total power output capability of 1kW, shared across the amplifier channels. This flexible approach allows a single, multi-channel amplifier, to drive loudspeaker systems differing in load size, in different areas of a building or venue, whilst optimising overall power output capability.
Energy Star
The CV4250 digital amplifier is designed to be Energy Star compliant. Automatic Power Down, triggered if an input signal is not detected for thirty minutes, reduces power consumption to just 2.5 watts. Remote control of the power down state is available via an external contact closure.
Ethernet / DSP
A full suite of user configurable DSP functionality is on-board and includes input routing, multi-band parametric room and speaker optimisation EQ, output level control and limiting, and 1.5s of assignable delay. The amplifier can be easily set up for multi-channel or parallel channel operation and bi-amping, with full control of crossover parameters.
Auxiliary Outputs
Providing the same DSP power as the normal amplifier channels, the auxiliary outputs can be configured as traditional slave outputs, or used as independent signal processing and routing channels.
Analogue and Digital Control
The CV4250 digital amplifier is compatible with the standard Cloud RL series remote level control plates. DSP parameters are accessible via RS-232 and Ethernet, for interfacing to third-party control systems including Crestron, AMX, Control4 etc. A 3-way GPIO port can be configured for external master mute and fault condition signalisation.
Product Details
- 4-Channel Digital Class-D Amplifier
- Nominal power rating: 4x 250 W
- Transformerless output stage drives 70 V/100 V systems directly
- Energy Efficient Switch Mode Power Supply
- On-board, per-channel DSP section providing extensive routing, filtering, EQ and limiting for all channels including the auxiliary outputs
- 1450ms assignable audio delay
- Basic / Advanced User Modes
- Power Sharing Capability
- Ethernet / RS-232 configuration and control
- Per-channel, front panel LEDs for signal presence, peak level, protection activity and power status
- GPIO (General Purpose Inputs/Outputs)
- Rear Dip-Switch Configuration of routing, high-pass filters, and 70/100V level
- Two configurable Aux Outputs capable of independent operation, or as slaves to an existing amplifier channel
- 2U Lightweight Chassis
- Compatible with standard Cloud RL Series remote level control plates (per-channel)
- Energy Star Compliant
- Optional Dante™ input card
- Optional web monitor card performs load impedance tests and reports out-of-tolerance results via a web interface or SNMP