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CLOUD CV SERIES DIGITAL AMPLIFIERS
MODELS: CV2500/CV4250/CV8125
General Description
Cloud CV digital amplifiers are versatile multi-channel power
amplifiers of advanced design, able to drive 70/100
loudspeaker systems directly. They are 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.
Every Cloud product is exhaustively tested for electronic performance and sonic perfection in Sheffield, England.
482.6 mm
19"
441.2 mm
17.4"
V-line
All Cloud products are exclusively designed in the UK.
Cloud CV8125 - front panel view
(CV2500 & CV4250 differ only in number of LEDs)
Cloud CV8125 - rear panel view
Cloud CV4250 - rear panel view
Cloud CV2500 - rear panel view
All models include 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. An important aspect of the design is that "out of the box",
the amplifiers emulate earlier Cloud amplifier designs. It is not
necessary to either connect a computer nor remove the lid to access
internal jumpers to set primary configuration parameters such as
C l e a r l y b e t t e r s o u n d

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Summary of Contents for Cloud CV Series

  • Page 1 Ethernet network. internal jumpers to set primary configuration parameters such as All Cloud products are exclusively designed in the UK. Every Cloud product is exhaustively tested for electronic performance and sonic perfection in Sheffield, England.
  • Page 2 (equivalent to the contact closure. Wake-up time is typically 200 ms. Music Mute control input on most other Cloud products), or for fault condition signalisation. In addition to the “soft” power switch and associated LED, the front...
  • Page 3: Key Features

    <3 W power consumption with all channels quiescent • RS-232C serial port for remote control of all amplifier functions, including DSP configuration • Compatible with standard Cloud RL Series remote level control plates (per-channel) • Remote Power Down control input •...
  • Page 4: Block Diagram

    C l e a r l y b e t t e r s o u n d Block Diagram SPEAKER AUX1 OUTPUTS CHANNEL 1 OPTIONAL REMOTE LEVEL 65Hz LEVEL AUX2 CONTROL ROUTING PROTECT ONE CHANNEL SHOWN FOR CLARITY * 8 CHANNEL MODEL SHOWN, OTHER MODELS HAVE REDUCED CHANNEL COUNT Input Routing The input routing switches permit various permutations of mono, stereo and multi-channel operation without any external parallel wiring.
  • Page 5: Software Configuration

    C l e a r l y b e t t e r s o u n d Software configuration The EQ sections have “basic” (2-band) and “advanced” (7-band All models can be easily configured for specific amplification tasks fully parametric) modes. using the on-board web server via a computer (or any device with a compatible web browser) connected to the rear panel Ethernet port.
  • Page 6 C l e a r l y b e t t e r s o u n d The two auxiliary outputs can be fully configured: source, level, EQ, filtering, etc., are all available. Up to 10 different users may given unique passwords, allowing them control of level and/or source of certain channels.
  • Page 7 C l e a r l y b e t t e r s o u n d A total of 1482 ms of delay can be freely shared between the Additionally, with the optional WM monitor card, each channel main amplifier channels and the auxiliary outputs.
  • Page 8: Application Example

    C l e a r l y b e t t e r s o u n d Application Example The example above shows an how the eight channels of a CV8125 A Wireless Access Point is connected to the Ethernet port, allowing amplifier may be used to provide audio to different areas of a hotel.
  • Page 9: Technical Specifications

    Output connectors 2-pole 5 mm-pitch plug-in screw-terminal connectors Remote level control connectors 3-pole 5 mm-pitch plug-in screw-terminal connectors Compatible with Cloud RL Series remote control plates Power input 85 to 264 V AC, 40 to 60 Hz Mains protection Class 3T 250 V fuse, 20 x 5 mm, rating T8A 0 °C to 35 °C (Note performance and specifications cannot be guaranteed outside this...
  • Page 10 C l e a r l y b e t t e r s o u n d Technical Specifications (continued) General (continued) Overcurrent Amplifier Protection Thermal monitoring Switch-on delay Status Indicators Power applied, Protection active, Signal peak, and Signal present Cooling Variable speed fan Dimensions...
  • Page 11: Performance Graphs

    C l e a r l y b e t t e r s o u n d Performance Graphs Frequency Response Open Circuit Frequency Response Frequency Response, Ch1 into 80 Ohms Frequency Response, Ch1 No Load Crosstalk Ch1 to Ch2 THD+N Crosstalk Performance, Ch1 to Ch2, Ch1 @100V O/P into 80 Ohms THD+N % VS Output Power into 80 Ohms...
  • Page 12: Architect's And Engineer's Specification

    The amplifiers shall include a digital signal processing (DSP) section: this shall be controllable through a series of web pages stored The power amplifiers shall be the Cloud CV2500 (two channels), internally which shall be accessible on a web browser application CV4250 (four channels), and CV8125 (eight channels).The load...
  • Page 13 C l e a r l y b e t t e r s o u n d...
  • Page 14 C l e a r l y b e t t e r s o u n d www.cloud.co.uk www.cloudusa.pro Issue_2.1 E&OE...

This manual is also suitable for:

Cv2500Cv4250Cv8125

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