Instruction Manual
P20
P21
troubleshootingpc setup - lan
 Using A40 MixAmps™ together in LAN or at a 
 tournament (PC)
Using the built-in voice communication function will instantly enable a high-
quality, ‘lag-free’ voice channel while using ZERO network bandwidth and no 
CPU cycles. This voice communication channel is also ‘hands free’. 
Simply use the included daisy-chain connector (or one of the included 
3.5mm-to-3.5mm cables for longer runs) to connect two or more A40 Mix-
Amps™ to each other. Connect two or more A40’s by using the front 3.5mm 
connectors at the bottom of the MixAmp™ (where the Daisy-chain connector 
usually resides). Once both units are powered on, you can now freely speak 
to your teammates in this new voice channel. Adjust the BALANCE control 
dial to mix in the ideal amount of Game/Voice ratio.
Important: You can continue to use VOIP programs as well as a local (daisy-
chained) voice channel, as long as your A40’s PC MIC output is still con-
nected to your PC’s MICROPHONE INPUT. Using a PTT (push to talk) key is 
best for this scenario, but experimentation with different congurations will 
pay off in the long run.
 Basic Troubleshooting
If the A40 MixAmp™ turns on briey when switched on, but then turns off 
again, check…
Is a headset connected to the A40? (The A40 is designed to shut down • 
automatically if there is no headset present, to prevent accidental dis-
charging).
If game sound is very low, check…
Is the •  BALANCE control knob dialed all the way to the VOICE side? If so, 
turn it back to the 12 o’clock position and adjust from there.
Is the unit connected to a source with a separate volume control (like a • 
television’s headphone jack)? If so, make sure that the TV volume is suf-
cient - about halfway up is a good starting point.
If voice communication cannot be heard from Xbox Live, check…
Is the •  BALANCE control knob shifted all the way to GAME? Dial it back 
to the 12 o’clock position, and ne-tune it from there.
Is the Xbox Controller connected with the 2.5mm-to-2.5mm cable? Make • 
sure that it is properly inserted at both ends.
If voice communication from Xbox Live has an audible echo, or you cannot 
adjust it with the BALANCE control, check...
Is the Xbox Live voice output set up correctly? Tap the Xbox guide • 
button, then enter Personal Settings/Voice and select “Play Through 
Headset” under Voice Output.
If voice communication cannot be heard when A40’s are Daisy-chained, 
and/or there is interference and noise, check…
That all connection cables are fully inserted and seated.• 
That all A40’s in the voice communication chain are powered ON.• 
Do all A40’s in the chain have ‘GOOD’ power status (no ashing red • 
lights)? If so, try replacing the batteries or connecting with USB power 
and see if this alleviates the problem.
Support
If you have an issue and you need further help to resolve, please contact us 
via email at: support@astrogaming.com










