Ci™ 20×8

Intelligent Networkable Power Amplifier – Constant Voltage 70V & Low-Z


The Ci™ 20×8 amplifier is designed to drive low impedance or 70V speaker loads without bridging between channels. Bridged operations are supported for additional power into 8 Ohm loads or 140V operation.

As with all Crest Audio® products, sonic performance is of primary importance. In addition, high-efficiency, comprehensive load protection, and compact packaging have been achieved in the Ci design.

The Ci Series amplifers incorporate Crest Audio’s tried-and-true modular approach to intelligent amplifier configuration. Through the provision of a single module bay, these amplifiers come with a module that facilitates load monitoring, digital audio delivery, and Crest Audio’s NexSys networking.

A full complement of features and options makes this series very versatile, whether powering airport systems, restaurant audio or a myriad of other applications.

Features Ci 20×8

• Eight channels

• 200 Watts @ 8 Ω per channel

• 200 Watts @ 70V per channel

• 400 Watts @ 16 Ω bridged

• 400 Watts @ 140V bridged

• Individual channels may be selected as low impedance or 70V (100V isolated outputs with optional accessories)

• Tour Class® protection

• Front and rear panel indicators for amplifier status

• Variable-speed fan

• Sequential turn-on standard

• Euro-style input connectors

• Barrier strip output connectors

• One controlled-voltage input per channel standard

• One fault relay per channel standard

• Module bay provided to input Nx module bay accessories for full amplifier control and monitoring via NexSys® 4 software or MediaMatrix® product and digital audio distribution

• EN60849 and ANSI60849 compliant with optional accessories

Additional information

Channels (Input)


Channels (Output)


Networked Audio

Optional (CobraNet)

Network Control


Power per Channel @ 8 Ω

200 W

Power per Channel @ 70V

200 W

Power per Channel @ 140V Bridged

400 W


Class D

Minimum Load Impedance

8 Ω

Frequency Response

±1 dB, 5 Hz to 20 kHz

Expansion-/Extension Card Slot


Input Connectors

8 x 3-pin Euro Connector

Output Connectors

8 x 2-pin Barrier Strips


Rack Mount (19")

Yes (2U)

Net Weight

36.5 lbs (16.65 kg)

Product Height

3.50" (89 mm)

Product Width

19.00" (483 mm)

Product Depth

18.55" (471 mm)

AC Power Input

120VAC 60 Hz, 230VAC 50 Hz version available



Select the fields to be shown. Others will be hidden. Drag and drop to rearrange the order.
  • Image
  • SKU
  • Rating
  • Price
  • Stock
  • Availability
  • Add to cart
  • Description
  • Content
  • Weight
  • Dimensions
  • Additional information
  • Attributes
  • Custom attributes
  • Custom fields
Click outside to hide the compare bar
Compare ×
Let's Compare! Continue shopping