The Allen & Heath PA20 20 Channel Stereo Live Mixer is an essential addition to any band, school, theatre, or hire inventory. The control surface is laid out in an uncomplicated format and the operator can easily see all connections for patching. Pre-fade sends (FB) and post-fade sends (FX) are clearly labelled and colour coded, and there are generous 100mm fader masters with a LED mute button, identical to the channel controls. There is a selection of 16 digital FX to complete the professional design.

The main XLR outputs derive their source from a selectable combination of LR (stereo), L+R (mono), FB1 and FB2, and provide master level trim, meters, slave outputs, patch point for external processors, and the very precise 4 band semi-parametric equalisers. This is extremely flexible and means that the PA can be operated in many different ways. For example, the user may want to run a stereo house system with separate left and right speakers and no monitors, or a mono system with a foldback monitor.

The mic preamp is probably the most important stage in the console’s signal path and its performance is often the measure of the quality of the console. The PA Series uses a high grade dualstage design, developed from our acclaimed ML and GL consoles. This ensures optimum matching and very low noise when connecting mic or line sources. A 4 band equaliser with swept frequency on each band provides more precise optimisation of the speaker system and control of feedback than the typical fixed frequency graphic type EQ found on similar consoles.

• Phantom Power- individually switched
• Two-stage Padless Preamp - directs line sources to the second stage for improved matching and performance
• Input EQ - 4-band with shelving LF and HF, a fixed LM band at 250Hz and a swept HM
• 100mm Faders - with dust covers throughout
• 4 Auxiliary Sends - with 2 pre-fade sends for foldback, one post-fade for internal or external FX and another post-fade for additional FX or special feeds
• 2 Dual Stereo Channels - each with TRS jack and RCA phono inputs with independent gain and 2-band EQ
• Outputs - source selectable main AB output, mono sum with switchable sub bass filter and analogue and SPDIF digital recording outputs.
• Output EQ - 4-band semi-parametric for speaker control more precise than achieved with the typical graphic type EQ
• Master section - 12 segment LED meters, standby switching to disconnect the speakers, an XLR lamp socket and background music mode switch