Nilfisk-ALTO Discover Features of the Stereo Amplifiers: Alto MAC 2.3 and MAC 2.4

Page 6

Signal LED

These signal indicators light up when the output is more than 100mV.

5. Level Control

5

These level controls are used to adjust the output signal level, you'd better adjust them properly to avoid any distortion.

3.2 Rear Panel

11

 

CH-2

 

INPUT

 

 

CONNECTION

 

(+)

SRT

 

LINE

2

1

 

3

T(+)

 

 

 

(GND)

2

1

(-)

R(-)

 

3

 

S(GND)

 

OFF

 

ON

 

LF 30HZ

 

 

FILTER

 

BALANCED 1.15V/20K

 

INPUT

 

 

 

 

 

BRIDGED

 

LINE

 

STEREO

2

1

PARALLEL

 

3

(MONO)

 

OFF

 

ON

 

CLIP LIMT

CH-1

BRIDGED INPUT

 

6

7

CH-1

CH-2

WARNING

 

BREAKER

TO REDUCE THE RISK OF FIRE

 

 

OR ELECTRIC SHOCK, DO NOT

 

 

EXPOSE THIS APPARATUS TO

 

 

RAIN OR MOISTURE.

 

 

SEE INSTRUCTION BEFORE

 

 

USING!

 

BRIDGED

Apparaten skall anslutas till

 

MONO

jordat uttag nar den ansluts

 

 

till ett natverk

CHANNEL 1

CHANNEL 2

 

MODEL

SERIAL

A104

8

10

12

13

9

6. Breaker

6

This switch works as fuse for protecting the unit from damage. When the unit is overloaded or the temperature inside the unit is too high, this pushing-button will spring up and break the power supply. The power supply will be restored with pushing the switch down again.

7. AC Inlet 7

This connector is meant for the connection of the supplied main cord. Do not insert the power cord into this unit until voltage has been correctly set. Do not plug the power cord into the mains until the voltage has been correctly set.

8. Input Connectors

8

These connectors include the balanced XLR servo connectors and 1/4" TRS phone jacks. It is used to connect the input signal.

9. Output Connectors

9

These connectors include the speak-on jacks and binding post terminals, you can output the powered signal by the specific output connectors according to the actual application circumstance.

Caution: turn off the unit before connecting the output connectors so as to avoid any electric shock!

10. Clip Limit Switch 10

Set this switch at "ON" position, once the output level is above the maximum level, the clip limt begin, which is used to keep fixed output level for protecting apparatus. If the switch is at "OFF", this clip limt function doesn't work.

11. LF 30Hz Filter 11

Setting this switch to "ON" is equal to adding an appropriate low-pass filter in the input circuit, which is used to protect the speaker system from the damage caused by large subsonic frequencies.

12. Mode Selector 12

The MAC 2.2/2.3/2.4 stereo power amplifier presents three operating modes:

-Stereo Mode

In this mode, CHA and CHB operate independently (as a conventional stereo amplifier)

The CHA input signal will be output from the CHA output connector, and CHB input signal will be output from the CHB output connector.

-Parallel Mono Mode

In this mode, CHA input signal will be output from the output connectors of both channels, detail wiring diagram you can refer to chapter 5.

-Bridged Mode

5

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Contents MAC 2.2/2.3/2.4 Power Supply Safety Related SymbolsImportant Safety Instructions External ConnectionPreface Table of Contents CH1CH2 Rear Panel Rack Mounting Installation & ConnectionMains Connection Audio ConnectionOperate MAC 2.2/2.3/2.4 in Stereo Mode OperationOperate MAC 2.2/2.3/2.4 in Parallel Mono Mode Channel B Channel aOperate MAC 2.2/2.3/2.4 in Bridged Mode General Application InstructionTechnical Specifications SpecificationsBlock Diagram Warranty Warranty Registration CardNo.1, Lane 17, Sec , Han Shi West Road, Taichung, 401 Taiwan

MAC 2.2, MAC 2.3, MAC 2.4 specifications

Nilfisk-ALTO has long been recognized for its innovative cleaning solutions, and the MAC series, encompassing the MAC 2.2, MAC 2.3, and MAC 2.4 models, exemplifies the brand’s commitment to quality and efficiency in high-performance vacuum cleaning. These machines are designed to meet a variety of industrial and commercial cleaning demands, providing effective solutions tailored for professional users.

The MAC 2.2 model is known for its compact design without compromising power. It features a robust two-stage motor that delivers a strong suction performance, able to tackle both wet and dry debris with ease. Ideal for small to medium-sized applications, the MAC 2.2 is equipped with an easy-to-use control panel for effortless operation. Additionally, it boasts a durable filter system that ensures optimal airflow while maintaining cleanliness even in the toughest conditions, making it suitable for environments such as workshops, garages, and small industrial settings.

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All three models share the hallmark of Nilfisk-ALTO design philosophy, focusing on durability, ease of use, and cleaning efficiency. Each machine is equipped with high-quality materials, ensuring longevity and reliability, even under demanding conditions. The MAC series is also environmentally conscious, with reduced energy consumption and improved dust control, supporting cleaner work environments.

In summary, the Nilfisk-ALTO MAC series, through its MAC 2.2, MAC 2.3, and MAC 2.4 models, offers a comprehensive range of industrial vacuum solutions that enhance cleaning processes with their robust features, user-centric design, and advanced technologies. These models are ideal choices for professionals seeking reliable, efficient, and powerful vacuum cleaning solutions.