Personal Monitoring System. Four XLR Inputs with Two Additional Auxiliary Inputs. Four Split Outputs. Ideal for Meeting Rooms- Restaurants- Schools and Much MorePower Supply: 12-18Vdc- 600mA Inputs: 4 x 1/4″ Jack/XLR Combo Sockets Aux Input: 2 x 1/4″ Jacks Output: 1/4″ Jack Dimensions: 205 x 212 x 43.5mm Weight: 1.4Kg. The PMM4 is ideal as a primary or submixer for meeting rooms- Houses of Worship- broadcast and educational public address systems. Four inputs with XLR 1/4″ jack combo connecter. Two additional auxiliary inputs and four split outputs are provided for expansion capabilities.. mixer-channel monitoring mixer