Crest Audio CKi Series Introduction, Barrier strip output, Module bay for NxCobraNet or, pin euro

Introduction

Crest Audio, the first company to offer com- puter controlled amplification now raises the bar. With the introduction of the CKi series of amplifiers, Crest Audio has added many standard features that other manufactures either charge additional for or don’t offer at all.Whether your requirements are sim- ple or extremely complex, CKi series amplification sys- tems are perfect for permanent installations of any size. As with all Crest Audio amplifiers, reliability and sonic performance are the most important factors in the amplifiers design.

With three different types of amplifiers, two add-on modules, and plug in options, the CKi series of amplifiers allows you the flexibility to install exactly what you need to do the job. CKiS amplifiers are the low impedance series, CKiV units are specially designed for distributed systems, and CKiX is the 100 Volt, transformer isolated version of the amplifier. Module options include NxEtherNet and NxCobraNet cards which can be ordered installed in the amplifiers or easily added later. The NxEtherNet card is an ethernet based network module that enables the amplifier to communicate with NexSys and MediaMatrix software for control and reporting of amplifier functions by remote computer control. The NxCobraNet card incorporates all of the functionality of the NxEtherNet module plus the ability to decode 2 channels of CobraNet digital audio.

CKi amplifiers standard features include sequential turn-on / turn-off (STO), input gain switch

(x20, 0dB / .775V, and x40), mode switch (stereo, par- allel, bridged), ground lift switch, and removable detent- ed potentiometers. In addition, status LEDs are provid- ed on the front and rear of the unit for signal, ACL, IGM, and protect conditions. Power monitoring is by two LEDs, one which displays that power is present to the amplifier and one that signifies that the amplifier is operating (Active LED). Input is through 3-pin euro style connectors and output is provided on 4 position barrier strips. Fault I/O closure outputs are provided on a three pin euro-style connector to alert external supervisory systems, such as a control room display, if an amp problem exists.

Amplifier options available include NxDSP processor plug-in board and the transformer input iso- lation board. The NxDSP option allows control of speaker related functions such as delay, EQ, and limit- ing.The transformer isolation board helps to eliminate problems with improper audio grounding and imped- ance mis-matches between equipment.

Crest TourClass protection includes active clip limiting (ACL) which prevents speaker damage by pro- viding gentle gain reduction at the onset of clipping. Instantaneous gain modulation (IGM) monitors speak- er loads to detect conditions that overstress ampli- fiers. Autoramp gradually increases gain to the preset amplifier setting when the amplifier is turned on.

Backed by Crest Audio’s 5 year warranty* and exceptional service departments,CKi amplifiers are a per- fect choice for all of your fixed installation requirements.

User resettable AC	Barrier strip output	Detented rear panel	Module bay for NxCobraNet or
		attenuators with
mains breaker	connectors		NxEthernet modules

removable knobs

			Mode switch for	Status LEDs make	3 pin euro	Selectable input
Sequential Turn-on	Fault I/O for con-	Signal ground	stereo, parallel, and	in-rack trou-	style input	sensitivity
			bridged mode	bleshooting a	connectors
connections	nection to moni-	switch
			operation	breeze

toring systems

2

*USA, Canada, and many other countries.