General
If you're looking for an affordable, reliable mixer that is ideal for live mixing of a large number of musicians, the Mackie ProFX22v2 is a particularly good option. This ultra-rugged analogue mixer has 16 mic inputs, 4 stereo inputs, powerful effects, two submasters, two monitor outputs, four compressors, and last but not least extremely silent Mackie Vita microphone preamplifiers. To top it all off, the ProFX22v2 also features a USB audio interface, for digital input or output of the stereo mix, and a handy 7-band master EQ.
ProFX22v2: professional sound
If you're familiar with Mackie's built like a tank reputation, you don't have to expect anything less from the ProFX22v2. This ultra-rugged mixer can cope perfectly with the rough stage life, while providing professional amplification of your mics with Mackie's signature Vita preamps. Adjust the sound to perfection with the 3-band EQ with adjustable mid-range frequency, or use any of the 16 built-in effects, like reverb or chorus, and adjust the volume for each channel strip individually.
Outputs
With the ProFX22v2 you can easily combine multiple channels into one stereo submaster and control the level with two faders. This mixer features two submasters that can be sent to two separate outputs. Other outputs are the main (XLR or jack), two monitor sends, FX send, and a control room output. You can also send a digital stereo signal to your PC or Mac via the USB interface, that can also receive a stereo mix, that you can then assign to any of the stereo channel strips.