The Numark Pro SM-3 is a 3 channel version of the Numark PRO SM-1 in different color faceplate.

Features

2 Channel stereo audio mixere
8 Position Rotatable Input Selector Toggles
3 Phono Inputs with low-noise RIAA preamps
6 Line Inputs
User replaceable Active Optical Crossfader with photo coupler
Crossfader Reverse (Hamster) Toggle
Crossfader Slope Control
Linear Fader Style Balance Control per channel:
 -  -6, -20, -30dB at 50% fader position
4 Bar 12-Segment Display graph
Combination XLR-1/4” Neutrik™ Mic input
Mic input with Treble and Bass EQ
Slider Cueing with PFL (pre-fader listen) and Program Blend
Gold Plated Headphone Jacks
Balanced 1/4” TRS and Unbalanced RCA connection Master Outputs
Monitor/Zone Level Control with Mono/Stereo Switch
Smooth Screwless Faceplate
Hard Rubberized Knobs for Quick Non-Slip Gripping.
Extra Wide Rubber Feet for Maximum Stability
Same Height as PRO TT-1 turntable
All Gold Plated Connectors
User Replaceable Faders
Carbon Composite Resistors for more Natural Warm Sounds
Dual Gold Plated Grounding Screws
Channel EQ
- Bass: +12/-30dB @60Hz
- Middle: +12/30 @ 1KHz
- Treble: +12/30 @ 15KHz

Specifications

Headphone: 0.5W into 47ohm
Distortion: less than 0.01%
Signal to Noise Ratio (line) : >90dB
Frequency Response (line) : 20Hz-22KHz ±0.5dB
Power Consumption : 28.8 Watt with full headphone output
Weight 3,2 kg