CX2300 I
NSTALLATION AND OPERATION MANUAL
1
CX2300 Active Filter
Installation and operation manual
Contents
Section Page
1 Introduction ................................................................................................1
2 Active Filters and Crossovers.....................................................................2
2.01 Why use an Active Filter/Crossover ? ........................................2
2.02 What are the optimum crossover frequencies? ..........................3
2.03 Why 3 pole filters ?.....................................................................3
3 Installation..................................................................................................4
3.01 Installation notes for the experienced installation engineer........4
3.02 Mounting ....................................................................................4
3.03 Audio Connections .....................................................................4
3.04 Schematic Diagram....................................................................5
3.05 Power connections.....................................................................5
3.06 Plug-in Filter Cards ....................................................................5
4 Operation and Controls ..............................................................................6
4.01 Two Way Operation ...................................................................6
4.02 Do I use the 20Hz high pass filter ? ...........................................6
4.03 The Invert Switch .......................................................................6
4.04 The Mute Switch ........................................................................6
4.05 The Gain Controls ......................................................................7
5 Circuit Description ......................................................................................7
5.01 Schematic diagram ....................................................................7
5.02 The Audio Path ..........................................................................7
5.03 The Power Supply......................................................................8
5.04 Signal Connections and EMC ....................................................8
5.05 The benefits of balanced interconnections.................................8
5.06 Using the CX2300 with unbalanced equipment..........................8
5.07 40Hz - the minimum frequency. .................................................8
6 How to change the frequency of the filter card. ..........................................9
6.01 Table of resistor values for the filter card ...................................9
7 Technical Specification.............................................................................11
(13 pages)
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