A microphone boom arm clamps to your desk and positions the mic exactly where you need it — directly in front of your mouth — then folds out of the way when not in use. For home office workers on frequent calls, podcasters, or streamers, a boom arm is the correct way to mount a desktop microphone. Without one, microphones sit on a desk stand below mouth level, picking up more desk noise and requiring you to lean toward the mic.
This pairs with a desk microphone — the arm positions it; the microphone captures the audio.
Boom arm vs. desk stand
- Desk stand: Mic sits on the desk. Lower cost. Picks up desk vibrations (typing, tapping). Occupies desk space. Microphone typically below ideal placement height.
- Boom arm: Clamps to desk edge. Positions mic at exact mouth height. Keeps desk clear. Dampens vibrations via spring tension. Far better for recording quality.
For casual calls (Zoom, Teams), a desk stand is sufficient. For recording, podcasting, streaming, or anyone who records voice regularly: boom arm is essential.
Arm types
- Scissor arm: Spring-loaded scissor linkage, folds flat against desk when not in use. Most common design. Compact when folded.
- Single-arm broadcast: One rigid arm, professional look, usually found in radio studios.
- Flex/gooseneck arm: Flexible neck arm. Holds position without springs. Less adjustable but no spring tension to manage.
What to look for
- Weight capacity: Must support your microphone's weight. Most condenser mics weigh 300–700g. Check the arm's max load spec.
- Clamp thickness range: Desk clamps grip 10–70mm edges typically. Check your desk thickness. Very thick desks (hardwood, butcher block) may need a wider clamp or grommet mount.
- Internal cable routing: Quality boom arms route the XLR or USB cable internally — cleaner look, cable protected from tangling. Budget arms have cable runs outside (use velcro ties to manage).
- Movement smoothness: The arm should hold position firmly and move smoothly. Cheap arms drift down under mic weight.
- Build material: Metal arms last; plastic arms develop wobble in joints over months. Steel or aluminum builds are worth the price premium.
- XLR vs. USB pass-through: Some arms have built-in XLR routing (for XLR mics); others are cable-agnostic. USB mics route the cable externally regardless.
Our top picks
1. Best professional (RODE PSA1 Studio Boom Arm)
All-metal construction, internal cable routing, clamp mount, 360° rotation at desk clamp, 180° rotation at mic mount, compatible with any mic with standard 5/8" threading, supports up to 1 kg. The RODE PSA1 is the broadcast standard for studio boom arms — used in radio stations, podcasting studios, and streaming setups worldwide. Smooth movement, holds any position, built to last indefinitely. The reference pick if you're serious about audio.
2. Best for cable management (Elgato Wave Mic Arm)
Internal cable routing (USB and 3.5mm), low-profile design, cable exit at desk clamp, connects via 3/8" and 5/8" mic threads, max 1 kg. Designed specifically with streaming and home office setups in mind — the cable exits clean at the desk clamp with no visible runs. Pairs particularly well with the Elgato Wave microphone line but works with any standard mic. Better aesthetic integration than RODE for modern desk setups.
3. Best budget (Heil Sound PL-2T Overhead Broadcast Boom)
All-metal, internal cable routing, low-profile horizontal reach, standard 5/8" and 3/8" threads, spring-loaded scissor arm. Heil builds pro-audio broadcast equipment — the PL-2T is their entry into the desktop arm market. Better build quality than most budget alternatives, with internal cable routing and all-metal construction at a price below the RODE PSA1. Good mid-tier option for home office users who want professional quality without the RODE price point.
Quick comparison
| Pick | Cable routing | Material | Best for |
|---|---|---|---|
| RODE PSA1 | Internal | All-metal | Professional, longevity |
| Elgato Wave Arm | Internal | Metal + plastic | Streaming, clean desk |
| Heil PL-2T | Internal | All-metal | Budget pro quality |
Setup guide
Step 1 — Clamp to desk edge. Position clamp within easy reach — typically to the side of your monitor, same side as dominant hand. Tighten firmly; the arm takes torque from the extended mic weight.
Step 2 — Attach microphone. Most mics thread onto a standard 5/8" thread. Use the included adapter if your mic has 3/8" thread. Tighten until the mic doesn't rotate freely but can still be repositioned with effort.
Step 3 — Route cable. For internally-routed arms, thread cable through the arm before attaching mic (easier than after). Exit the cable at the desk clamp side.
Step 4 — Position the mic. Position directly in front of your mouth, 4–8 inches away. For most mics, speaking across (not directly into) the front of the mic reduces plosives. The arm should hold position without drifting.
Step 5 — Test for vibrations. Tap the desk while recording — if you hear thumps, add a shock mount between the arm and microphone.
Shock mount pairing
A shock mount isolates the microphone from mechanical vibrations transmitted through the arm from desk tapping and keyboard sounds. Most quality microphones come with a shock mount. If yours doesn't, universal shock mounts ($15–30) fit most mics.
For home office call quality (not recording), a shock mount is optional. For any recording, it's recommended.
FAQ
Will a boom arm hold my heavy condenser microphone? Check the arm's weight rating. The RODE PSA1 holds up to 1 kg (1000g). Most large-diaphragm condensers (Blue Yeti, Audio-Technica AT2020) weigh 500–680g — within range. Very heavy broadcast mics (Shure SM7B at 766g) also fit.
Can I mount two microphones on one arm? No — boom arms are designed for one microphone at the end. For two mics, use two separate arms.
Does a boom arm reduce keyboard noise in recordings? Partially. The arm isolates the mic from desk vibrations (tapping, keyboard typing transmitted through the desk surface). Airborne keyboard sounds (actual noise) aren't affected by the arm — those require noise suppression software or a quieter keyboard.
Boom arm vs. mic stand vs. desk stand — which for home office calls? Desk stand for occasional calls (simple, low cost). Boom arm for anyone on calls 2+ hours daily or doing any recording — the arm positions the mic correctly and keeps the desk clear. Tall mic stand for conference room or standing setups.
