The Rolls PM60 is an all in one Personal Monitor headphone amp with a fully functional Microphone Preamp built in. Now there is a way to have a personal monitor without the need for a dedicated mixer board with a mic preamp and microphone phantom power. The PM60 has all those features built in. The PM60 has many uses other than personal monitoring it can be used as a stand-alone mic preamp with headphone monitoring it can be used as a mic monitoring headphone amp for direct recording and it can also be used as a two channel mixer with stereo line 1/4-" or 1/8-" out. It is perfect for podcasting home recording mixing boom mic monitoring for camera recording and mixing or as a stand-alone personal monitor. The PM60 is an all in one unit that has many capabilities. Made in the USA with an all steel chassis the PM60 is built to last. SpecificationsGain 10 dB 1/4-" or 1/8-" 48 dB XLR-"MIC-"Input Impedance: 600 Ohms XLR22K 1/4-" or 1/8-"Output Impedance: 10 OhmsFrequency Response: 3Hz to 100kHzTHD:.05 percent 1kHzS/N Ratio: 90 dBPower: 9-15 VDCIndicator: 1 Power LEDSize: 4 x 3.25 x 1.6-"Weight: 1.1 lbs