CARDIOD-Miniature Black Condenser Mic 12 Attached Cabl

Ideal Use Cases

The Shure MX391/C is a miniature black cardioid condenser microphone in the Microflex series. Shure identifies the MX391 as a boundary microphone and associates it with conference-room solutions. That combination defines the intended use clearly: a compact microphone configuration for conference environments where the microphone, cable, and preamplifier need to be planned as one signal path. The black finish and miniature description are part of this specific listing, while the MX391 model and MX391/C SKU make it straightforward to verify that the selected version matches the required item.

Why Choose This Model

The main reason to choose this model is its clearly documented connection package. The microphone has a 4 meter (12 ft) attached cable, so the provided lead length can be evaluated before installation. That cable terminates in a 4-pin mini connector and is supplied with a separate preamplifier. The provided rubber strain relief also supports an alternate integration method when the 4-pin mini connector must be removed. For projects that specify exact model, cable, connector, and preamplifier details, the MX391/C presents those elements as a defined configuration.

Installation and Integration

Plan the installation around the attached 4 meter (12 ft) cable and the location of the separate preamplifier. In the standard documented arrangement, the cable arrives terminated with a 4-pin mini connector. Shure also provides a rubber strain relief for applications that require removing that mini connector and routing the microphone cable directly to screw terminals in the preamplifier. This gives installers two documented connection paths: use the terminated 4-pin mini connection or prepare the cable for the preamplifier screw terminals. The latter path specifically involves connector removal, so the integration approach should be selected before the cable is finalized.

Performance Highlights

The available source data identifies the core microphone characteristics without adding unverified numerical claims. The MX391/C is described as a miniature cardioid condenser microphone and as part of Shure’s Microflex boundary microphone line. The cardioid designation defines the supplied variant, while the condenser and boundary descriptions establish its microphone type. Its documented 4 meter cable provides a known physical connection length between microphone placement and downstream preamplifier positioning. No frequency response, sensitivity, maximum sound pressure level, impedance, or power figures are stated in the supplied data, so none are claimed here.

What Makes It Different

What stands out in this listing is the combination of an attached cable and installation-specific termination details. The source does not merely state that a cable is present: it gives the 4 meter (12 ft) length, identifies the 4-pin mini termination, confirms a separate preamplifier, and explains the purpose of the included rubber strain relief. That level of connection detail matters when the microphone is being matched to an existing conference-room plan or a preamplifier location. It also makes the alternate screw-terminal integration route explicit instead of leaving the installer to infer it.

Final Assessment

The Shure MX391/C is best assessed as a specific Microflex conference-room boundary microphone package: miniature, black, cardioid, and condenser, with an attached 4 meter (12 ft) cable. Buyers receive a configuration built around a 4-pin mini connector and separate preamplifier, plus the rubber strain relief intended for direct screw-terminal wiring after connector removal. Choose this listing when those exact model and connection details match the project. Because the supplied data does not state broader acoustic, electrical, dimensional, or warranty specifications, those items should remain outside the purchasing comparison unless separately confirmed.