Side-Address vs End-Address Microphones for Live Sound

TL;DR — A side-address microphone is normally aimed with sound arriving at a marked side of its body; an end-address microphone is normally aimed toward its grille end. Address type describes the intended acoustic axis, not the polar pattern, diaphragm size, or quality. Confirm the exact model's front face, rotate its rejection zones with that axis, test the real mount and sightline, and document orientation before approving a substitute.

What microphone address type means

Address type describes the direction from which a microphone is designed to receive its intended source. An end-address microphone points its grille end toward the source. A side-address microphone presents a designated side of its body toward the source.

The distinction sounds simple, but a wrong assumption can put a source off axis, turn a rejection zone toward the performer, or point an active lobe at a loudspeaker. Body shape alone is not proof. Read the model marking and manual before placing it.

Address type is separate from the polar pattern. Either form can be directional or omnidirectional, and some side-address microphones offer several switchable patterns.

Compare the two geometries

These are common forms, not rules. A small diaphragm does not guarantee end address, and a large diaphragm does not guarantee side address. The diaphragm-size guide explains why capsule size and acoustic axis are separate specifications.

Find the active face before adding gain

Look for a front mark, logo, pattern diagram, capsule symbol, or explicit manual instruction. Multi-pattern models may label a front even when the selected pattern also accepts sound from the rear. Some microphones have similar-looking faces but different front and rear frequency response.

Use this setup sequence:

1. Identify the exact manufacturer and model.
2. Find the intended front face or end in the manual.
3. Confirm the selected polar pattern, pad, and filter.
4. Mark the source axis with the microphone in its final mount.
5. Trace the active lobes and nulls toward monitors, PA, backline, and room surfaces.
6. Apply gain only after orientation and cable clearance are correct.

Do not use the connector exit as an aiming reference. Connectors, switches, and logos can appear in different positions across otherwise similar bodies.

Aim the pattern, not just the capsule

When a cardioid end-address microphone points at a source, its rear rejection generally points in the opposite direction. Rotate that microphone and the rejection rotates with it. With a side-address cardioid, the same relationship is built around the marked side rather than the top of the grille.

For figure-8 and switchable-pattern microphones, both active sides require attention. The figure-8 microphone guide explains why a rear lobe is not a safe place for a wedge.

Published pattern icons are only a starting point. Polar response changes with frequency, and mounts, nearby surfaces, performer movement, and reflections affect the complete system. Test at the required show level.

Check placement, sightlines, and mechanics

A side-address body may need more horizontal room than an end-address replacement. Its shock mount can move the capsule farther from the boom, block a performer's view, conflict with a music stand, or place the cable in a visible or stressed route.

Before approving the position, verify:

• capsule-to-source distance and angle;
• stand reach, counterweight, base stability, and thread adapter;
• mount compatibility and the microphone's center of gravity;
• cable bend radius, strain relief, and connector clearance;
• performer access, camera sightlines, lighting, and scene changes;
• wedge and PA geometry through the full movement range.

Use the microphone stand guide to choose the support, then check the assembled microphone rather than judging each part alone.

Test substitutions at matched output

An approved replacement must reproduce the job, not merely fit the connector. If a side-address model replaces an end-address model, rebuild the position around the new acoustic axis. Match useful output after gain so level does not bias the comparison.

Test quiet, normal, and peak source levels. Check direct tone, off-axis spill, feedback stability, handling or structure-borne noise, sightlines, and every destination. Repeat likely performer and stand movement. The off-axis response guide provides a practical comparison method.

Document the orientation in the rider

Show the stand footprint and microphone orientation on the stage plot. Put model, channel, power, mount, axis, distance, pattern, pad, filter, destination, and substitute in the input list.

Avoid common address mistakes

• Do not sing into the top of a side-address microphone unless its manual specifies that axis.
• Do not assume every broad microphone body is side-address.
• Do not confuse address type with cardioid, omni, or figure-8 pattern.
• Do not rotate a microphone for switch access without rechecking its acoustic axis.
• Do not approve a substitute before checking mount, sightline, cable, and loudspeaker geometry.
• Do not describe placement only as “on a boom”; record the active face and angle.

FAQ

What is the difference between side-address and end-address microphones?

The intended source arrives at the side of a side-address microphone and at the grille end of an end-address microphone. The exact active face or end must be confirmed from the model documentation.

Which way do you point a side-address microphone?

Point its designated front side toward the source. A logo or symbol often identifies that face, but the manual is authoritative because markings and rear response vary by model.

Are all large diaphragm microphones side-address?

No. Diaphragm size and address geometry are separate design choices. Confirm both for the exact model instead of inferring one from the other.

Can you use a side-address microphone on stage?

Yes. Test its pattern, position, mount, sightline, spill, feedback behavior, movement, and required level in the real system. Its larger body or mount may need extra planning.

Does microphone address type change the polar pattern?

It does not define the pattern, but it tells you how the pattern is oriented relative to the body. Aiming the wrong face also aims the microphone's lobes and nulls incorrectly.

Make the acoustic axis unambiguous

Build the stage plot and input list in Techrider.live, mark the microphone's active face, and invite collaborators to edit the same rider. Save the tested axis, distance, mount, loudspeaker geometry, channel, and approved substitute so the venue can reproduce the position.