Product guide

4
Description of the device
Features
The MPA-440 is a professional multi zone Public Adress Amplifier:
• Four independent channels
• One balanced XLR and one 6.3 stereo input socket
• Five sets of gain, treble, bass and volume controls
• Five groups VU meter for output level
• Three XLR+1/4” TRS combo input and two RCA inputs
• Telephone paging function and monitor output
• Priority of MIC-1. VOX mute function
• Input matrix
• Output impedance 4 ohm, 8 ohm
•High impedance output: 25V-70V-100V
• Power output: RMS 40W x4
• Intelligent cooling fan
• 19” rack mount type (3U size)
Frontpanel
Fig. 1
1. Zone selector
Use Z1, Z2, Z3, Z4 to assign a channel to zone1-4.
2. Volume
Use to adjust the volume level for channel 1-4 to your preference.
3. Mute
Press this button to mute the channel.
4. Clip LED
The LED lights up when the output of the channel starts clipping.
5. Bass
Use to adjust the Bass frequencies for channel 1-4 to your preference.
6. Treble
Use to adjust the treble frequencies for channel 1-4 to your preference.
7. Gain
Use to adjust the input gain level for channel 1-4.
8. Phones level
Use to adjust the headphone level.
9. Phones jack
To connect a headphone.
10. Monitor level
Use to adjust output level of the monitor output.