Alesis M1 Active 520 USB M1A520USB Manual De Usuario

 

 

 

 

 
"Latency" is the delay between the moment when audio is generated and the moment when you actually hear it.  Higher 
latency means a longer delay.   
 
The M1Active 520 USB speakers feature zero latency direct monitoring so you don’t have to worry about latency when 
monitoring input sources connected to the rear of the speakers.  However, latency may become an issue when using software 
synths and instruments.    
 
Generally, you want to keep latency as low as possible while still allowing your equipment to operate without glitches. 
Latency and buffering is usually adjusted in your software’s Preferences settings.   
 
If you still experience too much latency or "lag" when using software synths and instruments, you might want to download 
one of the free and widely available ASIO (Audio Stream Input/Output) drivers from the Internet.  In general, ASIO drivers 
may perform better and with lower latency since they create a more efficient communication between audio devices and 
software. You may download and install the free ASIO4ALL driver (PC) by visiting www.asio4all.com. 

 

 
1.

 

VOL/POWER – This knob is used to turn the speakers on and adjust their volume.  
To turn on, simply turn up the knob; you will feel a click when the speakers turn on.   

2.

 

HEADPHONES – Connect your 1/4" headphones to this output to hear the mix 
through your headphones.  Note that while the headphones are connected, you will 
not be able to hear sound out of your speakers until the headphones are 
disconnected. 

3.

 

POWER / CLIP INDICATOR – This light will illuminate blue when it detects incoming 
audio signal.  It will illuminate red if that signal is clipping. 

 

1.

 

POWER – Use the 
included power cable 
to connect the 
speakers to a live 
power source.  Make 
sure your AC 
VOLTAGE 
SELECTOR is set to 
the correct voltage for 
your country. 

2.

 

AC VOLTAGE 
SELECTOR – This 2-
position switch sets 
the AC input voltage 
for the speaker.  US 
users should set this 
switch to "100-120V" 
whereas UK and most 
European users will 
need to set this to 
"220-240V." 

3.

 

USB (1.1) – Use the 
supplied USB cable to 
connect the speaker 
system to your 
computer.  Note that the M1Active 520 USB speakers are Plug-
and-Play so there is no additional driver installation necessary; 
the speakers should be ready to use as soon as they are 
plugged in. 

4.

 

OUTPUT TO LEFT SPEAKER – This is the audio connection to 
the left speaker.  Use the included XLR cable to connect the right speaker to the left speaker.   

5.

 

1/4” TRS INPUTS – Use 1/4" TRS cables (not included) to connect external sound sources to these inputs. 

6.

 

BASS BOOST – This 2-position switch allows you to boost the speakers’ bass frequencies. 

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