AUSTRALIAN MONITOR AMIS23X Bedienungsanleitung

Clever Features, Contractor Friendly

AMIS23X

Stereo 2-way/Mono 3-way crossover

Installation

And

Operation Manual

Introduction

The Australian Monitor Installation Series AMIS23X is a one rack unit, fourth

order Linkwitz-Riley electronic crossover. The AMIS23X can be configured as

either a stereo two way or a mono three way crossover. Featuring clip LED

indication per band per channel, frequency range selector switch, CD horn

boost switch & polarity reverse switching, the AMIS23X is an extremely well

featured crossover at a contractor friendly price.

Front Panel

1. Power Switch

This switches the mains power “on” to the unit.

2. Channel 1 Crossover Section

This section refers to the controls for channel one. This section is duplicated

for channel 2.

1 2

4 5 6 7 8 9 10

3. Clip LED’s

These LED’s indicate that the high range or low range signals are clipping

& entering distortion. Occasional flickering of these LED’s is acceptable

but if the LED remains on continuously, the level should be turned down to

avoid distortion.

4. Input Level.

This controls the input level of signal being fed to each channel.

5. Low Mute.

This switch will mute the low frequency band signal output for each

channel.

6. Low (lo) Level.

This controls the level of the low frequency band output of each channel.

7. Range Selection Switch

This switches the frequency value of the frequency control (8) from the

frequency shown on the front panel when the switch is the “off” position

to 10 x the frequency shown when in the “on” position.

8. Mid (lo/Mid) Frequency.

This will determine the crossover frequency between Low frequencies &

High frequencies for each channel when used in 2 way stereo mode. In 3

way mono mode this control will determine the (Lo/Mid) crossover point &

the corresponding Channel 2 control will determine the (Mid/Hi) crossover

point.

9. Hi Mute

This switch will mute the Hi frequency band signal output for each

channel.

10.High Level.

This controls the level of the high frequency band output of each

channel.

Back Panel

1. Channel 2 High output XLR

Channel 2 XLR high frequency output/ Mono 3 way high frequency

output.

2. Channel 2 High output Jack

Channel 2 Jack high frequency output/ Mono 3 way high frequency

output.

3. Hi Phase.

This switch reverses the polarity of the high frequency output.

4. Channel 2 Low output XLR

Channel 2 XLR low frequency output/ Mono 3 way mid frequency output.

5. Channel 2 Low output Jack

Channel 2 Jack low frequency output/ Mono 3 way mid frequency

output.

6. CD Boost Switch.

This switches in a constant directivity horn equalization circuit. This is used

with horns that require a high frequency boost. This boost is +3 dB @ 3.5kHz

rising 6dB per octave to 22.5kHz. If constant directivity horn equalization is

required engage this switch. Consult your horn manufacturer to determine

if this equalization is required.

7. Mode Mono/stereo.

This switch will determine if the AMIS34X will operate in 2 way stereo or 3

way mono configuration. The switch “in” is 3 way mono mode & switch

“out” is 2 way stereo mode.

911

17 18

8. Channel 2 Input XLR

This input accepts a balanced line level signal in 2 way stereo mode. This

input is not used in 3 way mono mode.

9. Channel 2 Input Jack

This input accepts a balanced line level signal in 2 way stereo mode. This

input is not used in 3 way mono mode.

10. Channel 1 High output XLR

Channel 1 XLR high frequency output. This is not used in Mono 3 way

mode.

11. Channel 1 High output Jack

Channel 1 Jack high frequency output. This is not used in Mono 3 way

mode.

12. Hi Phase.

This switch reverses the polarity of the high frequency output.

13. Channel 1 Low output XLR

Channel 1 XLR low frequency output/ Mono 3 way Lo frequency output.

14. Channel 1 Low output Jack

Channel 1 Jack low frequency output/ Mono 3 way Lo frequency output.

15. CD Boost Switch.

This switches in a constant directivity horn equalization circuit. This is used

with horns that require a high frequency boost. This boost is +3 dB @ 3.5kHz

rising 6dB per octave to 22.5kHz. If constant directivity horn equalization is

required engage this switch. Consult your horn manufacturer to determine

if this equalization is required.

16. Channel 1 Input XLR

This input accepts a balanced line level signal in 1 way stereo mode. This

input is the input used in 3 way mono mode.

17. Channel 1 Input Jack

This input accepts a balanced line level signal in 2 way stereo mode. This

input is the input used in 3 way mono mode.

18. Voltage Selector Switch

This switches the correct voltage for your part of the world.

19. Fuse Holder.

The AMIS23X has a 500mA mains voltage fuse.

Modes of Operation

2 Way Stereo

When using the AMIS23X in 2 way stereo mode, firstly ensure the Stereo/Mono

Mode switch (7) is set to the correct position (switch “out”), then simply patch

the left line level output signal into input 1 (16 or 17) & the right line level

output signal into input 2 (8 or 9). Connect low output 1 (13 or 14) & low

output 2 (4 or 5) to your low frequency amplifiers. Connect the Channel 1

high output (10 or 11) & the channel 2 high output (1 or 2) to your high

frequency amplifiers.

3 Way Mono

When using the AMIS23X in 3 way mono mode, firstly ensure the Stereo/Mono

Mode switch (7) is set to the correct position (switch “in”), then simply patch

the line level output signal into input 1 (16 or 17). Connect low output 1 (13 or

14) to your Low frequency amplifiers, connect low output 2 (4 or 5) to your

mid frequency amplifiers & connect high output 2 to your high frequency

amplifiers. In this mode ensure Channel 1 Range Selection Switch (7) is set to

X1 & Channel 2 Range Selection Switch (7) is set to X10,& that both Channel

2 High Level (10) & Channel 2 Input Level (4) are set to ‘0’.

AMIS23X Specifications

1. Frequency Range; x1: 80Hz – 920 Hz

x10: 800Hz – 9.2 kHz

2. Frequency Response; 20 Hz – 20 kHz

3. S/N Ratio; Low Frequency Output @ 0dB <-106dBu

High Frequency Output @ 0dB <-97dBu

Inhaltsverzeichnis

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