Camco Vortex 200V User Manual download pdf (Page 17)

3 INSTALLATION / 4 OPERATION

USER MANUAL

VORTEX 6, 4, 2.6 and 200V

P.16

WARNING !

SPEAKON connectors marked with the lightning ﬂ ashes indicate high vol-

tages that are potentially life threatening.

Wiring to these terminals requires installation by an instructed person or

the use of ready-made leads or cords.

Custom wiring should only be carried out by qualiﬁ ed personnel.

To prevent electric shock, do not operate the ampliﬁ er with any of the

conductor portion of the speaker wire exposed.

NOTE:

For reasons of safety and performance, use only high-quality fully in su-

lated speaker cables of stranded copper wire. Use the largest wire size that

is economically and physically practical, and make sure the cables are no

longer than necessary.

IMPORTANT:

When connecting speaker cabinets in parallel, always use all the contacts

in both SPEAKON connectors. If not, this may cause permanent damage to

the connectors and considerably reduce performance.

4.1 Controls

4.1.1 Volume Control

A microprocessor-controlled DCA (Digital Controlled Attenuator) with a control

resolution of 12 bits per channel is integrated into the signal path. This means

that the signal is not subject to an A/D followed by a D/A conversion with

associated losses.

Using a DCA instead of the “conventional” VCA signiﬁ cantly reduces distortion

and, at the same time, it improves the noise characteristics. A volume control

with 41 notched settings controls the DCA via a microchip.

These settings have been selected to correspond to human hearing

characteristics (logarithmically) and therefore guarantee an optimal range of

settings for practical applications. Each channel can be set individually except

when operating in mono modes whereby only channel A is active.

Set the volume to zero before turning on the ampliﬁ er to prevent the occurrence

of sudden high volume levels which may cause damage to your hearing and/or

the speakers.

The volume controls are also used to set the CAI address. (See 5.2.2 CAI Address

Settings)

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Camco Vortex 200V User Manual Page 17