Why Shop With Us?
Free Shipping
Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
Orders placed before 3 p.m. ET usually ship the same business day.
Learn More2-Year Free Warranty on Guitars
Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.
Contact Us for DetailsWe're Here for You
Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.
Contact UsContact Us
Hablamos Español
866.226.2919
Hours:
MON - FRI 6 AM – 7 PM PT
SAT 7 AM – 6 PM PT
SUN 8 AM – 5 PM PT


Soundcraft Si Expression 2 Digital Mixer
true true- Free Shipping
- Flexible Financing
- Lowest Price
Gold Coverage Protection
Protect your gear
Si Expression 2 Digital Mixer Specifications:
- Frequency Response
- Mic input to Line output . . . . . . . . . . . . . . . . . . . . . . . . . . +0/-1dB, 20Hz - 20kHz
- Stereo input to master output . . . . . . . . . . . . . . . . . . +0.5/-0.5dB, 20Hz - 20kHz
- T.H.D. & Noise (10Hz - 22kHz)
- Mic In (min gain) to Bus output . . . . . . . . . . . . . . . . . . . . . . . . . . 0.006% @ 1kHz
- Mic In (max gain) to Bus output . . . . . . . . . . . . . . . . . . . . . . . . . . 0.008% @ 1kHz
- Stereo input to master output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.005% @ 1kHz
- Mic Input E.I.N.
- 22Hz-22kHz bandwidth, unweighted . . . . . . . . . . . . . <-126dBu (150 Ohm source)
- Residual Noise
- Master output; no inputs routed, Mix fader @ 0dB . . . . . . . . . . . . . . . . . . <-88dBu
- CMRR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80dB @ 1kHz Mic input
- Sampling Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48kHz
- Convertor Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 bit
- Latency
- Mic Input to Bus output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 1ms @ 48kHz
- DSP Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-bit floating point
- Internal Clock
- Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < +/- 50ppm
- Jitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < +/- 5ns
- Input & Output Levels
- Mic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +26dBu max
- Stereo Inputs / Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +22dBu max
- Bus Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +22dBu max
- Nominal Operating Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0dBu (-22dBFS)
- Input & Output Impedances
- Mic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.8 kOhms
- All other analogue Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >10 kOhms
- Line Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <75 Ohms
- Oscillator . . . . . . . . . . . . . . . . . . 20Hz to 20kHz Sine/Pink Noise, variable level
- Filters
- High Pass Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Hz - 1kHz
- EQ (Inputs and Bus Outputs)
- HF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800Hz-20kHz, +/-15dB shelving
- Hi-Mid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Hz-20kHz, +/-15dB, Q=0.3-6.0
- Lo-Mid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Hz-20kHz, +/-15dB, Q=0.3-6.0
- LF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Hz-500Hz, +/-15dB shelving
- Metering
- 7x 8 segment meters for selected channel/bus, masters & monitors
- Each fader strip offers 4 segment level plus gain reduction & Gate Closed status
- Mains Voltage Operating Range . . . . . . . 90-264V, 47-63Hz, autoranging
- Mains Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200W
- Temperature/Humidity Range
- Operating Temperature Range . . . . . . . . . . . . . . . . . . 0C - 45C (32F - 113F)
- Relative Humidity . . . . . . . . . . . . . . 0% - 90%, non-condensing Ta=40C (104F)
- Storage Temperature Range . . . . . . . . . . . . . . . . . . -20C - 60C (-4F - 140F)
- Weights and Dimensions (net)
- Si Expression 1
- Dimensions (WxDxH) . . . . . . . . . . . .482mm/19" x 520mm/20.5" x 168mm/6.6"
- Width with rack ears removed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445mm/17.5"
- Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11.8kg (26lbs)
- Si Expression 2
- Dimensions (WxDxH) . . . . . . . . . . .716mm/28.2" x 520mm/20.5" x 168mm/6.6"
- Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15.5kg (34lbs)
- Si Expression 3
- Dimensions (WxDxH) . . . . . . . . . . .928mm/36.5" x 520mm/20.5" x 168mm/6.6"
- Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19.2kg (42lbs)
Questions & Answers
Do you have questions about this product?
- Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
- Orders placed before 3 p.m. ET usually ship the same business day.
Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.
Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.
