SHOW CAS-304 Series Column Array Speakers User Manual

The Column Array Speakers are designed for use in Public Address
Systems. They come in different models with varying power and
system impedance specifications.

Installation

CAS-304 / CAS-308 Installation:

Ensure the mounting brackets can support the product weight
securely.

Install the bracket vertically at the specified location.
Securely attach the bracket to the wall and ensure it is
vertical.

Use the provided screws to fix the column to the bracket.

CAS-312 Installation:

Verify that the mounting brackets can support the speaker’s
weight.
Install the bracket vertically and securely attach it to the
wall.

Use the screws provided to fix the column speaker to the
bracket.

System Connection Plate

The CH1/CH2 settings depend on the input voltage (70V or 100V)
and whether it is a mono or dual-channel input. Select the
appropriate settings to ensure correct operation.

Accessory

Speaker cables and power selections may vary based on the model.
Follow the provided guidelines for proper power selection and cable
connections.

Back Panel Description

The back panel features connections for power selection and
speaker cables. Ensure correct connections are made based on the
model and input voltage requirements.

FAQ

Q: How do I select the correct power settings for
CAS-308B/CAS-312B models?

A: Do not connect BLACK and WHITE for 70V
input, and avoid connecting BLACK and BROWN for 100V input.

Q: What precautions should I take during installation?

A: Make sure the mounting brackets are secure,
install them vertically, and use the provided screws to fix the
speakers to the brackets. Ensure correct power connections are
made.

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User’s Manual COLUMN ARRAY SPEAKERS

NF05047-1.0

CAS-304 CAS-308 CAS-312

INDEX

01 SAFETY RELATED SYMBOLS

02 WARNING

03 INTRODUCTION

04 INSTALLATION

05 ACCESSORY

06 BACK PANEL DESCRIPTION

07 SYSTEM CONNECTION PLATE

08 TECHNICAL SPECIFICATIONS

TECHNICAL SPECIFICATIONS

Model Passive System Type Input Voltage Transformer selectable Power
System Impedance
Sensitivity (1w/1M) Max SPL(1M) Frequency Response(-6dB) Speaker Angle of coverage(HxV) Connect Enclosure Construction Suspension/Mounting Dimensions(H×W×D) Net weight

CAS-312B / CAS-312W Column Array Speaker 70V/100V 15W / 30W / 60W / 120W 70V 330 / 167 / 83 / 41 100V 667 / 333 / 167 / 83 99dB 125dB 120Hz-18KHz 12×3″ full range speaker, 20mm Voice Coil 120°x30° @ 4 kHz Cable conductor Body in extruded aluminum, resistant paint, 1.0mm aluminum grille 12×M8 Points For Mounting 1112mm(43.7″)×121mm(4.8″)×140mm(5.5″) 13.3KG/29.3Ibs

TECHNICAL SPECIFICATIONS

CAS-304B / CAS-304W Column Array Speaker 70V/100V 5W / 10W / 20W / 40W 70V 1000 / 500 / 250 / 125 100V 2000 / 1000 / 5000 / 250 93dB 114dB 150Hz-18KHz 4×3″ full range speaker, 20mm Voice Coil 120°x10° @ 4 kHz Cable conductor Body in extruded aluminum, resistant paint, 1.0mm aluminum grille 6×M8 Points For Mounting 448mm(17.6″)×121mm(4.8″)×140mm(5.5″) 5.2KG/11.46Ibs

CAS-308B / CAS-308W Column Array Speaker 70V/100V 7.5W /15W / 30W / 60W 70V 667 / 333 / 167 / 83 100V 1333 / 667 / 333 / 167 95dB 116dB 150Hz-18KHz 8×3″ full range speaker, 20mm Voice Coil 120°x20° @ 4 kHz Cable conductor Body in extruded aluminum, resistant paint, 1.0mm aluminum grille 6×M8 Points For Mounting 763mm(30″)×121mm(4.8″)×140mm(5.5″) 8.6KG/18.9Ibs

Please read the instructions in details before you use, and follow the contents to do the most proper installation. After you have made the proper installation, please keep this instruction well for your references at any time. If you would like to do any changes for the installation regarding this product, please must make sure if the specifications are correct or not. Otherwise, the incorrect installation will probably result in the permanent damage to this product, therefore, please use it with cautions.
Cautions: 1. Absolutely not to do the installation that exceeds the specifications of this products because it will result in affecting the life and the capacity with regard to this product. 2. Keep away from the place that wets in rain directly if installing at outside. 3. Do not clean the appearance of the column speaker with an organic solvent or alcoholic detergent. 4. Do not repair or disassemble the product yourself if there is any damage or unusual situation, please should contact the person in charge of service immediately.
INTRODUCTION
The CAS series is a professional column array speaker developed by SHOW. With 1.0mm mesh and 1.0mm grille, it can effectively protect unit from external damage and prevent dust into the speaker. Cabinet is made by aluminum alloy with coating, to make delicate touch. 8 pieces 3 ” full-range horn unit with linear paper cone , cloth surrounding can achieve high sensitivity. The system apply power transformers to switch power, effectively protect the units. To prevent high power input signal damage units, they can be used in parallel to avoid causing damage to the PA amplifier with low impedance. Locked bracket screws to fixed plate inside cabinet. The fixing plate with 3 mm thick iron can effective decompose the bracket pull force.

SYSTEM CONNECTION PLATE
CH1/CH2 loaded with 70V, dual channel input: 1. Select “MONO/DUAL” at ” DUAL” position, dual channel input; 2. CH1/CH2 output select at ” 70V” position, both loaded with rated 70V speaker; 3. Select “L/H CUT” at ” ON” position, to prevent low frequency protection and improve the
transmission efficiency. Applicable to Public Address System.
CH1/CH2 loaded with 100V, dual channelinput: 1. Select “MONO/DUAL” at ” DUAL” position, dual channel input; 2. CH1/CH2 output select at ” 100V” position, both loaded with rated 100V speaker; 3. Select “L/H CUT” at ” ON” position, to preventlow frequency protection and improve the
transmission efficiency. Applicable to Public Address System;

CAS-308

Speaker Cable-L

Speaker Cable-R

CAS-304

CAS-308
3

CAS-312

Stereo Power Amplifier 70V
8

100V

CAS-308B / CAS308W POWER SELECTIONS 1) Do not connect BLACK and WHITE for 70V input 2) Do not connect BLACK and BROWN for 100V input
CAS-312B / CAS312W POWER SELECTIONS 1) Do not connect BLACK and WHITE for 70V input 2) Do not connect BLACK and BROWN for 100V input
7

INSTALLATION
CAS-304 / CAS-308 1) Make sure the expansion screws of mounting brackets can filmy support the product weight
before installation to avoid causing the injuries of the facilities and a worker if there is a falling. 2) Make sure the bracket is installed in vertical position and install expansion screw in the identified
location. 3) Lock the bracket (in attached) to the wall enough tightly and ensure it’ s vertical between bracket
and wall. 4) Remove the 6*M8 screws on back of column and fix it to the racket via the screws( in attached).
Please make the column straight and firmly locked. 5) Adjust the column to appropriate angle with bracket adjustable angle vertical 0 °~ 30 °, horizon
-90 ° ~ 90 °. 6) Please first confirm the system you connected output of 100V, 70V. And make the cables con-
nected. · 180 ° x 30 ° bracket (angle vertical 0 °~ 30 °, horizon -90 ° ~ 90 °)
· L bracket(angle horizon -90 ° ~ 90 °)
4

CAS-312 1) Make sure the expansion screws of mounting brackets can filmy support the product weight
before installation to avoid causing the injuries of the facilities and a worker if there is a falling. 2) Make sure the bracket is installed in vertical position and install expansion screw in the identified
location. 3) Lock the bracket (in attached) to the wall enough tightly and ensure it’ s vertical between bracket
and wall. 4) Remove the 12*M8 screws on back of column and fix it to the racket via the screws( in attached).
Please make the column straight and firmly locked. 5) Adjust the column to appropriate angle with bracket adjustable angle horizon -90 ° ~ 90 °. 6)Please first confirm the system you connected output of 100V, 70V. And adjust band switch to the
correct position, also the input signal must be connected correctly.
· 180 ° x 30 ° bracket (angle horizon -90 ° ~ 90 °)

· 180 ° x 30 ° bracket · L bracket

ACCESSORY

· L bracket(angle horizon -90 ° ~ 90 °)

BACK PANEL DESCRIPTION
CAS-304B / CAS304W POWER SELECTIONS 1) Do not connect BLACK and WHITE for 70V input 2) Do not connect BLACK and BROWN for 100V input

Documents / Resources

SHOW CAS-304 Series Column Array Speakers [pdf] User Manual
CAS-304, CAS-308, CAS-312, CAS-304 Series Column Array Speakers, CAS-304 Series, Column Array Speakers, Array Speakers, Speakers

References

User Manual

SHOW CAS-304 Series Column Array Speakers User Manual

CAS-304 Series Column Array Speakers

Specifications

Product Usage Instructions

Introduction