Mix up to 4 microphones together and add echo with this high-quality, compact and durable audio mixerThe MM-14FX by Nady Systems is a great mini mixer for dynamic microphones. Versatile and highly portable, this little workhorse features four mono ¼” microphone inputs with individual volume controls, plus built-in echo effects DSP with delay time and depth controls for the ultimate mixing effects. Although small in size, the MM-14FX provides up to 50dB of gain per channel with low distortion, a high signal-to-noise ratio, and a wide frequency response to deliver all of the details in your audio.Connect the ¼” unbalanced output directly to your PA or recording device for ultra-clean audio. Karaoke, performances, recording, presentations, classes, the applications are endless… The MM-14FX is a perfect front-end solution wherever there is a need for dynamic microphones. Eliminate the need for bulkier, more expensive mixers, and take the MM-14FX 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: 5kΩ Maximum Input: -13dBm Sensitivity: -45dBm Output Impedance: 800Ω Maximum Output: +6.5dBm Max Gain: 49.1dB Frequency Response: 20Hz – 18kHz (±3dB) THD + Noise: 0.09% S/N: -78dB Noise Floor: 300uV Current Drain: 35mA 9V Battery Life: up to 20 hours Power Requirements: 9V battery or optional PAD-1 AC/DC adapter 4 mono 1/4 Microphone Inputs with individual volume controls mixed to one single 1/4 line level output.this mixer is not a stand-alone device, it should be connected to the amplifier Compact design with a heavy-duty steel construction, smooth-turn ultra-stable pots, and high-quality jacks for lasting durability The mixer delivers high-quality audio with up to 50dB of gain per channel, low distortion, a high signal-to-noise ratio, and a wide frequency response to bring out all of the details in your audio Decay time and depth control knobs let you adjust the built-in echo DSP to simulate the decay reverb of rooms, halls, and stadiums The front panel has an on/off switch with an indicator LED. The mixer can operate on a 9V battery, or via an optional external AC/DC adapter for terrific versatility Though it can be used in many applications, the MM-14FX is designed for use with dynamic microphones. If using otherwise, please be aware that significant volume increases may incur some signal distortion. UPC 634343270129 ASIN B000UZ4QY6 Frequency 20 Hz Brand Name Nady Audio Input 1/4 Item Weight 0.9 Pounds Noise Level 78 Decibels Manufacturer Nady Systems. Inc. Power Source Battery Powered Item Type Name DJ Mixer Number of Channels 4 Warranty Description 90 days. Output Connector Type TRS Connectivity Technology TRS Item Dimensions D x W x H 2 D x 3.3 W x 2 H Global Trade Identification Number 00634343270129