B-Stock: Shure SCM820, Digital IntelliMax Automatic Mixer

The Shure SCM820, Digital IntelliMax Automatic Mixer is an 8-channel digital automatic mixer designed for use in speech applications, including sound reinforcement, broadcasting and audio recording. It uses IntelliMax technology to dramatically improve audio quality in any application where multiple microphones are required and to select channels to open to the mix bus, while attenuating other channels.  It comes with a logic-enabled block connector with 8 inputs and features a Dante Digital Audio network interface card.

Digital audio is carried over standard Ethernet using shielded Cat5e (or higher) cables. Dante provides low latency, tight clock synchronization, and high Quality-of-Service (QoS) to provide reliable audio transport to a variety of Dante devices. Dante audio can coexist safely on the same network as IT and control data, or can be configured to use a dedicated network.

B-stock units may have minor cosmetic scratches or dents.  Some product accessories or the original packaging may be missing when received. B-Stock units are not covered by a full manufacturer warranty. Please call us for details.

Product Specifications:

Channel Input Level Monitoring:

Configuration: Active Balanced

Impedance: 5 kΩ

Clipping Level: Line (-0): +20 dBV, Mic (+26): −6 dBV, Mic (+46): −26 dBV

Phantom Power: 48 VDC, selectable per channel, 14 mA maximum

AUX Input:

Configuration: Stereo, Unbalanced

Impedance: 10 kΩ

Clipping Level: +10 dBV

Output Connectors (Analog):

Mix Output

Configuration: Active Balanced

Impedance: 350 Ω

Clipping Level: Line (±0): +20 dBV, Aux (−20): 0 dBV, Mic (−46): −26 dBV

Output:

Direct

Configuration: Impedance Balanced

Impedance: 150 Ω

Max Output Level: +20 dBV

Headphone Output: 1/4" (6.35 mm) TRS, 100 mW, 350 Ω, dual mono (will drive stereo phones)

Connector: Block

Converter: 24-bit, 48 kHz, 113 dB dynamic range typical

Internal Processing: 32-bit

Latency:

Analog to Analog

Single Device: 0.51 ms, In a Link Group 0.76 + 4TN

Analog to Dante

Single Device: 0.29 ms, In a Link Group 0.54 + 4TN

Dante to Analog

Single Device: 0.28 + TN, In a Link Group 0.53 + 5TN

Dante to Dante

Single Device: 0.06 + TN, In a Link Group 0.31 + 5TN

Network Interface: Dual Port, Gigabit Ethernet, Dante digital audio

Cable Requirements: Cat 5e or higher, shielded, 328' (100 m) maximum

Network Addressing Capability: DHCP, link-local, static

Output Noise:

Output Pad

Line (+0): -90 dBV

Aux (-20): -110 dBV

Mic (-46): -135 dBV

at 20 Hz to 20 kHz, A-Weighted, one channel open

Power Requirements: 100 to 240 VAC, 50 to 60 Hz, 1 A

Operating Temperature Range: 0 to 145°F (-18 to +63°C)

Storage Temperature Range: -20 to +165°F (−29 to +74°C)

Shipping Weight: 11.95 lbs

Shipping Dimensions (LxWxH): 22.1 x 15 x 2.8"