Detail 01
12 Vdc phantom power
Runs low-voltage electret mics. Many studio condensers expect 48V and will underperform or not work.
Product detailSKU #1274034493889
ShureSCM410 4-Channel Automatic Mixer
1/2
Independent shopping perspective
The Korena take
Rack automatic mixer for four mics in conference rooms, courtrooms, and houses of worship. Gates unused channels so only active talkers pass.
Strong match
Who this is for
- Boardrooms where nobody wants to ride faders during a meeting
- Fixed installs with four gooseneck or boundary mics
- Panel discussions where open mics build up room noise
Consider the trade-offs
When to look elsewhere
- Music mixing — no aux sends, no per-channel monitor path
- Recording setups needing 48V condensers; phantom here is 12V
- Anyone under four mics; a small manual mixer costs far less
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
13 dB off attenuation
Idle channels drop rather than mute fully, so gating sounds smooth instead of chopping the room tone.
Detail 03
4 ms attack, 0.4 s hold
Opens fast enough to catch the first syllable and stays open through short pauses in speech.
Detail 04
Peak limiter at +16 dBu
Catches a podium thump or shouted word before it clips the output. Red LED shows when it engages.
Detail 05
Low-cut with adjustable corner, 25–320 Hz
Dial out HVAC rumble or proximity boom per channel without a separate outboard EQ.
Detail 06
1-3/4 inch height
Single rack space, so it fits a shallow AV rack alongside amps and DSP.
Final check
Know before you order
- 01Mics, cables, and rack ears are separate purchases
- 02100–120 Vac only — not for 230V regions without conversion
- 03Check your mics run on 12V phantom before ordering
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can I use an SM7B or other 48V mic with this?
Dynamic mics like the SM7B need no phantom and work fine, though they'll want more gain. Condensers rated for 48V won't get it here — phantom is 12 Vdc.
02Do I have to set anything up for the auto-mixing?
Channels activate on speech automatically. Set gain per channel and the low-cut corner; the gating handles itself from there.
03How many can I link together?
For more than four mics you'd add units and connect them together. Check the link connections on the rear against your channel count.
04Will it work for a band?
No. It's built for speech. Automatic gating fights sustained instruments, and there are no monitor sends.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsPickups & controls
- Frequency Response At 1 KHZ Channel Controls Centered
- 50 Hz to 20 kHz +/- 2 dB; -3 dB corner at 25 Hz
- Output Hum and Noise Channel Controls Full Counterclock Wise
- Master full counterclockwise: 90 dBV: Master full clockwise: 70 dBV
4 detailsConnections & power
- Phantom Power
- 12 Vdc open-circuit through 680 ohm resistors
- Operating Voltage
- 100-120 Vac rated nominal, 50/60 Hz,100 mA (maximum)
- Input Channel Activation
- Attack Time: 4 ms; Hold Time: 0.4 s; Decay Time: 0.5 s
- Input Leds
- Green on channel activation, red at 6 dB below clipping
2 detailsSize & weight
- Weight
- 3.86
- Overall Dimensions H X W X D
- 1-3/4 inch x 8-5/8 inch x 10-1/2 inch (44 x 219 x 267 mm)
7 detailsOther
- Equalization
- Low-frequency: 6 dB/octave cut, adjustable corner from 25 to 320 Hz; High-frequency: +/- 6 dB at 5 kHz, +/- 8 dB at 10 kHz, shelving
- Common Mode Rejection
- >70 dB at 1 kHz
- Overload and Shorting Protection
- Shorting outputs, even for prolonged periods, causes no damage. Microphone inputs are not damaged by signals up to +10 dBV (3V)
- Off Attenuation
- 13 dB
- Limiter
- Type: Peak; Threshold: +16 dBu (at output); Attack Time: 2 ms; Recovery Time: 300 ms; Indicator: Lights red when limiting occurs
- Temperature Range
- Operating: 7 degrees to 49 degrees C (20 degrees to 120 degrees F ); Storage: 29 degrees to 74 degrees C (-20 degrees to 165 degrees F)
- Polarity
- All inputs to all outputs are non-inverting
