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SM Pro Audio Q-DI - 4-Channel Direct Box and Line Mixer

SM Pro Audio Q-DI - 4-Channel Direct Box and Line Mixer

SM Pro Audio Q-DI - 4-Channel Direct Box and Line Mixer Back View

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Product Highlights

  • 4-Channel DI Box and Line Mixer
  • Balanced Output for Each Input
  • Volume and Pan Controls
  • Per Channel Pad
  • Ground Lift Per Channel
  • Headphone Output with Volume Control
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Questions? Ask our experts:

The Q-DI from SM Pro Audio is a four-channel DI box featuring high quality unbalanced to balanced line conversion, in addition to providing an extremely useful built in line mixer. Each input features an attenuation switch, a ground lift switch, volume and pan controls, and terminates in a balanced XLR output.

Housed in a rugged road-worthy half rack-mount enclosure, the unit will find use in home and professional studios, sound reinforcement systems and live PA applications, as well as many other audio fields. It covers all typical applications, such as instrument routing to line inputs. Additionally, its versatile four-channel layout and headphone output makes it ideal for small line mixing applications.

Four channel DI box and line mixer with master control
Balanced XLR output for every 1/4" input
Stereo line out on RCA phono connectors
Volume and pan control on each channel
0, -20 and -40dB attenuation switch on each channel
1/4" headphone output
Ground lift per channel
Type Direct Inject box with Line Mixer
Input Connections 4 x 1/4" TS phone
Input Impedance 47kΩ
Minimum Sensitivity -20dB
Maximum Input Level +16dB
Output Connectors 4 x XLR
2 x RCA phono
Output Impedance 600Ω
Maximum Output Level XLR: 0.0dB (peak level +18.5dB)
RCA: +2.0dB (peak level +18.5 dB)
Frequency Response 20Hz to 20kHz, 0/-2.0dB
Distortion 0.02%
Noise SNR: >74dB
Crosstalk >80dB @ 1kHz, -20dB input
Power 17VDC via included adapter
Dimensions (WxDxH) 8.5 x 8 x 1.75" (216 x 203 x 45mm)
Weight 3.9 lb (1.8kg)
Packaging Info
Package Weight 2.45 lb
Box Dimensions (LxWxH) 8.9 x 8.5 x 3.4"
SM Pro Audio Q-DI - 4-Channel Direct Box and Line Mixer
  • External Power Supply
  • One (1) Year Warranty
  • Be the first to review this item


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