ARX CP32 Owner's manual

Brand: ARX

Model: CP32

Category: Audio equalizers

Type: Owner's manual

CP32

8 1

CP32

Three Channel

2 way Crossover

OWNER’S MANUAL

INTERNATIONAL LIMITED WARRANTY

ARX Systems (ARX) warrants to the first purchaser of any ARX equipment that it is free

from defects in materials and workmanship under normal use and service. ARX’s sole

obligation under this warranty shall be to provide, without charge, parts and labour

necessary to remedy defects, if any, which appear within twelve (12) months from date of

purchase, and for a further twelve (12) months supply parts only.

This is our only warranty. It does not cover finish or appearance items, or if the

equipment has been, in ARX’s sole judgement:

•Subjected to misuse, abuse, negligence or accident;

•Repaired, worked on, or altered by persons not authorized by ARX;

•Connected, installed, adjusted or used for a purpose other than that for which it was

designed.

This warranty gives you and us specific legal rights and you may also have other rights

which may apply.

Warranty Service Procedure

Should it become necessary to have your equipment serviced under the

terms of the warranty, please follow these steps:

1. Call your ARX distributor for a Return Authorization (RA) number;

2. Carefully repack the unit, in its original packaging where possible,

including a note with a description of the problem, and a copy of

the receipt showing date of purchase. Attach these to the actual

unit itself. Don’t forget to write your name and address clearly, and

include a phone number where you can be contacted during

normal business hours. Make it easy for our service technicians to

contact you if they have a question. Also, use plenty of packing

material - better to be safe than sorry.

3. Send the unit freight prepaid to ARX Systems, at the address given

you with your RA number. We will pay the return freight when the

serviced unit is returned to you.

4. We strongly recommend you insure the package. We can’t fix it if it

gets lost! Send it by UPS, Fedex, or any similar service that can track

the package. Parcel Post is not recommended

If Warranty Registration Card is missing, please write to ARX in the

country of purchase, stating model and where purchased, or to

ARX, PO Box 15, Cheltenham, Victoria 3192, Australia.

Or you can Email us at: [email protected]

ARX Systems Pty Ltd, PO Box 15,

Cheltenham, Victoria 3192, Australia

Phone: 03 - 9555 7859 Fax: 03 - 9555 6747

International Fax: +61-3 -9555 6747

On the Web: http://www.arx.com.au

Email: [email protected]

CP32

to the unit via a standard IEC AC

Mains connector with built in fuse

and voltage selection switch.

CP 32 Specifications

Input Impedance

Balanced 20K Ohms

Unbalanced 10K Ohms

Input Headroom

+21 dB

CMRR

>45dB 1KHz

Output Impedance

Balanced 300 Ohms

Unbalanced 150 Ohms

Output Level

+21dB

Filter Type

24dB (fourth order) Linkwitz Riley

Zero error state variable summing

filter.

Gain

Low Output

Unity Gain 0dB (except for +6dB

Low Frequency EQ as applied)

Low Frequency EQ

(For Thiele/Small alignments )

Supplied flat; to vary LF EQ see

notes on pages 4-5 in this manual

High Output

Unity Gain 0dB to infinity (Full

attenuation) variable via rear

panel trim pot

High Frequency EQ

+6dB @ 10KHz variable via rear

panel trim pot

Frequency Response

40Hz to 20KHz ±0.5dB

(40Hz low point set by HP filter)

(Specs assume no HF EQ is applied).

Distortion

.004% THD 0dB 1KHz

Signal to Noise

Low Output -93dB Unweighted

High Output -90dB Unweighted

(Specs assume no HF EQ is applied).

Dynamic Range

Low Output 114dB

High Output 111dB

Input Connector Type

Female XLR

Pin 1 Ground Pin 2+ Pin 3 -

Output Connector Type

Male XLR

Pin 1 Ground Pin 2+ Pin 3 -

Power Requirements

100/120 VAC, 220/240 VAC

50-60 Hz, 8 Watts (8 VA)

Weight

5 lbs / 2.2 KG

Dimensions

19"W x 1¾"H x 6"D

482 x 44 x 155 mm

Note: Chassis ground and electronic

ground are soft connected via a 100nF

Capacitor to eliminate Ground loops.

This symbol indicates that a Slow Blow fuse is used in this equip-

ment. Replace with same type and value only

This symbol is intended to alert you to the presence of uninsulated

dangerous voltage within the product's enclosure that may be of

sufficient magnitude to constitute a risk of electric shock.

This symbol is intended to alert you to the presence of important

operating instructions contained in this owner's manual

WARNING SYMBOLS USED ON THIS EQUIPMENT

IMPORTANT - PLEASE READ THIS FIRST

This is a dual voltage unit. It is essential that you check that the voltage on

the fuseholder cover below the AC connector on the rear of the chassis is

set correctly before connecting it to AC power.

To change, pull fuseholder out and rotate 180

, then push in again. Do not

insert power cable into unit until voltage has been correctly set. Do not plug

power cable into AC power until voltage has been correctly set

THIS IS SET FOR

100 V AC TO 120 V

AC OPERATION

THIS IS SET FOR

220 V AC TO 240 V

AC OPERATION

Complies with 89/336/EEC EMC Directive,

amended by 92/31/EEC and 93/68/EEC and

meets the following standards:EN 55013 :

1990, Sections 3.2 and 3.5 EN 55020 : 1988,

Sections 4.3, 5.4, 6.2, 7.0, 8.0.

Complies with Australian Standard AS/N25

1053

CP32

4 5

Front panel controls

• AC power status LED

Rear Panel Connectors

• Balanced XLR Input socket. Pin 2 HOT +, Pin 3 Cold -, Pin 1 GROUND

• Balanced XLR Low Frequency Output socket (same wiring as Input)

• Balanced XLR High Frequency Output socket (same wiring as Input)

• High Frequency EQ trim

• High Frequency level trim

(Left, Centre and Right channels have identical connectors and controls)

• IEC 3 pin AC connector and integral fuseholder. Replace fuse with correct

value only: 100 - 120 V AC 1 amp, 220-240 V AC 0.5 amp. Please also refer to

voltage details on Page 2

Changing CP 32 Performance Parameters

• Crossover Frequency

Unless ordered specifically from the Factory the CP 32 is preset at a Crosso-

ver Frequency of 500HZ on all three channels. To vary the frequency the

values of RX1, RX2, RX3 & RX4 must be altered. Luckily these are all identi-

cal values so the operation is not overly complicated.

The technically minded can work out the values using the following

formula:

RX1,2,3,4 = 6.28 x (3.9 x 10

-9

) x Crossover Frequency in Hz

However, standard frequencies use the following resistor values:

Frequency RX1,RX2,RX3,RX4

250 Hz 163K Ohm

500 Hz 82K Ohm

800 Hz 51K Ohm

1 KHz 40K Ohm

• Low Frequency Equalisation.

Some Low Frequency Systems (especially those derived from Thiele Small

alignments) now require the use of low frequency equalisation to achieve

smooth frequency response. The CP 32 is supplied with this equalisation set

flat with the highpass set at 40Hz. To vary this parameter use the following

scale:

6dB boost at R11, RA11, RB11 R10, RA10, RB10

25Hz 18K Ohm 280K Ohm

32Hz 13K Ohm 220K Ohm

35Hz 12K Ohm 200K Ohm

40Hz 10K Ohm 180K Ohm

45Hz 9K Ohm 150K Ohm

50Hz 7.5K Ohm 140K Ohm

60Hz 7K Ohm 120K Ohm

CP32

Introduction

Thank you for choosing this ARX Cinema PRO series CP32 Three Channel 2

way Crossover. We hope you enjoy using it as much as we enjoyed creating

it. As with all ARX equipment, it has undergone extensive factory calibra-

tion and ‘burn in’ before shipping. To ensure continued trouble free use,

please familiarise yourself with the contents of this manual before using the

CP32.

About the CP32

The ARX Cinema Pro CP32 is a three channel Phase Correct 24dB Electronic

Crossover designed specifically for Professional Cinema applications.

• Tamper Proof Controls

To ensure the CP 32 is tamper proof Crossover points are internally adjusta-

ble. HF level and HF EQ are accessed via rear panel trim controls.

• Balanced Inputs & Outputs

The CP 32 features electronically balanced inputs and outputs using XLR

connectors or terminal blocks.

• High Pass Filter

All channels feature a pre-set 18dB per Octave high pass filter factory set at

40Hz to remove unwanted subsonics that can damage loudspeakers and

cause intermodulation distortion.

• State of the Art Filter Design

Innovative product design requires uncompromising circuitry. The CP 32

features Linkwitz Riley 24dB (fourth order) state variable filters to ensure a

smooth phase correct transition through the crossover region.

• Universal AC Power

AC power range is a universal 100/ 120V or 220/240V AC, and is connected

Resistor Layout

For modifying Crossover Frequency and/or Low Frequency EQ

Low Freq EQ

Crossover Point

ARX CP32 Owner's manual

Brand: ARX

Model: CP32

Category: Audio equalizers

Type: Owner's manual

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ARX CP32 Owner's manual

ARX CP32 Owner's manual

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