Crest Audio CKV200 - User Manual

CKV200 POWER
PROCESSING AMPLIFIER
Power Specification 70.7 Volt
20Hz - 20kHz, 0.1% THD+N 100W
• Sequential Turn-On/Off (STO). Standard system uses any +8 to
+18VDC source and contact closure.
• PowerSave. Reduces power consumption at idle by turning off the
bias circuit (and fan if heat sink temperature is below allowed thresh-
old) when no signal present at input.
• 3 Module Bays. Unique chassis construction provides three separate
bays into which a diverse range of space-saving and cost effective
Input Processing, Network and Power/Output modules can be fitted.
By combining multiple processing and control functions in the ampli-
fier, CKV Series Power Processing amplifiers significantly save on
installation costs versus conventional outboard processing.
• Cool Operation. High thermal mass heat sinks, with high-efficiency
variable speed fan. Front panel mounted filter for easy maintenance.
• “Overbuilt” Power Supply. In the Crest tradition, the power supply
is “over-engineered” for ample current reserves to meet demanding
load conditions.
• More Transistors. More output devices than comparably-powered
competitive models to provide wider safe operating area and lower
heat generation.
Product Description
The Crest Audio CKV200 Power Processing amplifier is designed specifically for the unique requirements of high quality, 70V distributed sound
systems in commercial, industrial and institutional installations. Design goals met by the CKV200 include exceptional sonic accuracy, high efficien-
cy, minimum power consumption, comprehensive loudspeaker protection, and the ability to handle extended duty cycles.
In addition, the CKV200 incorporates Crest Audio’s proprietary modular approach to input/output and external control configuration. We call this
concept Power Processing. Through the provision of three plug-in module bays, these amplifiers offer exceptional flexibility with integral signal pro-
cessing, load monitoring, and either local or system-wide computer control via Crest Audio’s NexSys
®
network.
The CKV200 amplifier is manufactured exclusively in Crest Audio’s own USA plant, using only the highest quality components.
Key sub-assemblies are individually pre-tested, and all units are rigorously “burned-in” before final checkout on precision test equipment.
• TourClass
®
Protection Circuits:
ACL (Active Clip Limiting) prevents speaker damage with gentle
gain reduction at clip threshold.
IGM (Instantaneous Gain Modulation) monitors connected loads to
detect conditions that may overstress output devices, allowing safe
operation into difficult loads.
AutoRamp gradually increases gain to attenuator setting level when
amplifier is turned on.
TourClass also includes comprehensive thermal management, and
short circuit, DC voltage, turn-on/off transient, current inrush and
sub/ultrasonic input protection.
• Selectable input sensitivity/voltage gain (internal jumpers)
• UL certification
• Front panel status indication
• Rear panel attenuators with removable knobs
• Barrier strip input and output connectors
• Optional input isolation transformers
• Front panel label area
• Full five-year warranty*
CKV200 Features
Figures are watts per channel, both channels driven. NexSys is a registered trademark of Crest Audio Inc.

Summary

Product Description

CKV200 Features Overview

Sequential Turn-On;Off (STO)

Standard system uses any +8 to +18VDC source and contact closure for sequential power.

PowerSave Functionality

Reduces idle power consumption by turning off bias circuit and fan if heat sink temp is below threshold.

Modular Input;Output Bays

Three bays for space-saving, cost-effective input, network, and power/output modules.

Cool Operation Design

High thermal mass heat sinks with high-efficiency variable speed fan and front panel filter.

Robust Power Supply

Over-engineered power supply for ample current reserves to meet demanding load conditions.

High Output Transistor Count

More output devices than competitors for wider safe operating area and lower heat generation.

TourClass Protection Circuits

Includes ACL, IGM, AutoRamp, thermal management, and protection against shorts, DC voltage, etc.

Selectable Input Sensitivity

Internal jumpers allow selection of input sensitivity/voltage gain (X40, X20, or 0.775V).

Certifications and Indicators

Includes UL certification, front panel status LEDs, and rear panel attenuators.

Connectivity and Warranty

Features barrier strip inputs/outputs, optional transformers, and a full five-year warranty.

CKV200 Specifications

Output Power and Voltage

Delivers 100W into 70.7V line, with max RMS output voltage of 92V and peak of 130V.

Frequency Response and Bandwidth

Frequency response from 10Hz-20kHz (+0/-0.3dB at rated power).

Distortion and Noise Levels

THD+N <0.1% @ 70.7V out, Hum and Noise >105dB below rated output.

Input Characteristics

Input impedance >20kΩ balanced/>10kΩ unbalanced, CMRR >60 dB.

Amplifier Class and Cooling

Class AB amplifier with variable speed front panel fan for front-to-side airflow.

Power Supply and Current Draw

Configurable 100V-240V power supply, with idle current of 0.5A and max draw of 4.2A.

Thermal Emissions

Thermal emissions rated at 816 BTU/hr (1/8 power) and 932 BTU/hr (1/3 power).

Controls and Indicators

3-position power switch, rear attenuators, AC breaker, and channel LEDs (Signal, Protect, ACL).

Construction and Dimensions

Steel chassis, 16 gauge, dimensions 3.5"x19"x17.13", net weight 27.20 lbs.

Warranty Information

The amplifier is covered by a 5-year warranty.

Architects & Engineers Specifications

Performance Requirements

Minimum 100 watts/channel into 70.7V line, 20Hz-20kHz, 0.1% THD+N.

Cooling System Details

Variable speed fan turns off under appropriate ambient temperatures, front-to-both sides airflow.

Protection Circuitry

Protection against output shorts, DC voltage, thermal overload, impedance sensing, active clip limiting.

Energy Saving Feature

Automatically removes output stage bias current when amplifier is idle.

Gain and Noise Specifications

Variable gain (X40/X20/0.775V sens.), hum and noise >105dB below rated output.

Frequency Response

Frequency response greater than 20Hz-20kHz, +0, -0.3dB at rated power.

Power Supply and Current Draw

Operates at 100-240V, 50-60 Hz AC; max current draw at 120V is 4.2A.

Front Panel Interface

Includes Active, Protect, Signal, ACL LEDs; 3-position power switch; front-mounted fan filter.

Rear Panel Configuration

Three bays for modules, barrier strip I/O, Phoenix connectors, attenuators, breaker, IEC socket.

Physical Dimensions and Weight

Dimensions 19"(483mm)W x 3.5"(89mm)H x 17.13"(435mm)D; net weight 27.20 lbs.

Crest Audio CKV200 Specifications

General

Brand	Crest Audio
Model	CKV200
Category	Amplifier
Language	English