Dozens of applications for this extremely useful mixer at a very affordable price The Nady MM-242 allows you to easily combine mono or stereo signals together and adjust their relative volumes. Ideal for DJ equipment, synths and guitar rigs, studio, stage, the MM-242 is a great tool to have around everywhere. Mono/stereo mode selector switch determines whether all 8 inputs are mixed to both 1/4" outputs or are preserved as stereo signals, so you have greater flexibility and mixing options. Connect the ¼” outputs of this little workhorse directly to your PA or recording device for ultra-clean audio. Eliminate the need for bulkier, more expensive mixers, and take the MM-242 anywhere with you with its 9VDC operation using either a 9V alkaline battery or the optional PAD-1 AC/DC external adapter. Specifications Input Impedance: 50kΩ Output Impedance: 120Ω Maximum Output: +7dBm Frequency Response: 20Hz-30kHz THD: 0.07% S/N: -95dB Noise Floor: 120uV Inputs/Outputs: 1/4” unbalanced Peak LEDs: light 3dB before clipping Current Drain: 19mA 9V Battery Life: up to 35 hours Power Requirements: 9V battery or optional PAD-1 AC/DC adapter