MXL FR-401M Supercardioid Boundary Microphone - Stage and Room Capture

In this review the MXL FR-401M Supercardioid Boundary Microphone is assessed as a compact, versatile option for capturing multiple sound sources at once. The FR-401M is best for engineers and performers who need a boundary mic that rejects rear noise while picking up room ambience; the single biggest reason to buy is its three capsule array that captures sound from three sides while minimizing unwanted sounds from behind the mic. The built-in 15-ft XLR cable and Mogami internal wiring make it ready for stage and field use without extra adapters.

Key Features

• Three capsule array: Provides broad coverage across a stage or table while allowing focused pickup from the front and sides.
• Supercardioid boundary pattern: Rejects sound from the back so you can record the performers while keeping audience noise low.
• Built-in 15-ft XLR cable: Lets you position the mic at a distance from the mixer or camera without adding cables on set.
• Mogami internal wiring: Ensures a strong, clean signal path and reduces the chance of noise from cheap internal cabling.
• Multipurpose design: Suitable for stage, live performance, interviews, podcasting and simple studio work where room sound is desired.

Who It's For

The FR-401M is aimed at live sound techs, small venue performers, podcasters doing roundtable interviews, and videographers who need a boundary mic they can lay on a stage or near talent and capture multiple sources. Its supercardioid boundary design is useful when you want to pick up a group or a stage area while minimizing rear noise, such as audience bleed.

It is less appropriate for a user who needs a tight, single-instrument close mic for studio overdubs or highly directional broadcast work; those users should consider mics purpose-built for close-up single-source capture. Also, users needing wireless or USB convenience will need additional gear, since the FR-401M uses a hardwired XLR connection.

Pros & Cons

Pros

• Reliable room and stage coverage from the three capsule array for multi-source pickup.
• Good rejection of rear noise thanks to the supercardioid/boundary configuration.
• Durable, ready-to-use setup with a 15-ft built-in XLR and quality Mogami wiring for strong signal output.

Cons

• Not ideal for extremely close, single-source studio tasks where a different pickup pattern would be preferable.

Specifications

Model	MXL FR-401M
Polar pattern	Supercardioid boundary (three capsule array)
Cable	Built-in 15-ft XLR
Internal wiring	Mogami cable
Typical uses	Stage, live performance, interviews, podcasting, studio room capture

Our Verdict

The MXL FR-401M is a practical, value-minded boundary microphone for anyone who needs to capture multiple sources or room ambience while reducing rear noise. With its three capsule array, built-in 15-ft XLR and Mogami wiring, it is a dependable choice for stage work, interviews and field video audio where simple setup and reliable signal are priorities.

Frequently Asked Questions

Can this mic be plugged directly into a camera?
Yes, the FR-401M can be used with a video camera when the camera has an XLR input or via an appropriate external XLR interface.

Does it pick up audience noise?
It rejects sound from the back, so when the back is pointed at the audience the mic reduces audience bleed compared with omnidirectional boundary mics.

Is the cable removable?
No, the FR-401M includes a built-in 15-ft XLR cable that is internally wired with Mogami cable and is not intended to be removed.