The Bose A20 aviation headphones are a premium pilot headset combining active noise reduction (ANR), lightweight construction, and clear voice intelligibility for cockpit use across general aviation and turbine aircraft.
First impressions: why pilots choose the Bose A20 headset for cockpit comfort and clarity
The A20 stands out for ANR that reduces cockpit noise while preserving voice clarity on ATC and intercom channels.
Its build prioritizes low weight and balanced pressure to reduce neck and head fatigue on long flights.
Pilots pick the A20 for three clear selling points: strong noise control, comfortable fit for multi-hour flights, and reliable comms performance during cross-country, charter legs, and airline training.
Detailed fit and comfort analysis: earcups, headband, and long-flight wearability
Earcups use memory-foam seals with soft leatherette covers to distribute pressure evenly across the skull instead of pinching at a single point.
The headband is adjustable with moderate clamping force designed to hold position without creating hotspots; that balance minimizes pressure points while maintaining a secure seal in turbulence.
For glasses-wearers: position the temples inside the earcup seal, slightly loosen the clamping force before long flights, and rotate the glasses temples forward to reduce direct pressure on the frame points.
Heat buildup is normal in extended use; plan short breaks and carry replacement seals if you sweat heavily on summer hops.
Expect a break-in period of roughly 5–10 hours for the seals to conform to your head shape and for the headband padding to relax.
Active noise reduction (ANR) performance in the flight deck: real tests and noise attenuation
Bose A20 uses feed-forward and feedback ANR circuits that generate anti-noise to cut engine and airflow sounds while leaving human speech intelligible.
In piston single-engine aircraft the A20 noticeably trims low-frequency propeller rumble and medium-frequency cabin noise; in turboprops and jets it reduces engine drone and some high-frequency airflow but cannot eliminate all cockpit noise at full power.
Perceived attenuation: low-frequency engine rumble sees the largest reduction, mid-frequency cabin noise drops significantly, and high-frequency airflow is reduced but still present at high airspeeds.
To optimize ANR: keep ear seals clean, replace worn cushions, use fresh batteries or an external power source, and verify the seal edge is flush with the head. ANR performance degrades with poor seal or weak batteries.
Audio quality and communication clarity: speakers, soundstage, and microphone pickup
Speaker drivers are tuned for voice clarity over tonal richness; ATC transmissions and intercom talk come through with strong intelligibility rather than music-grade fidelity.
For music during preflight or post-flight, expect accurate mids and clear highs but limited bass depth compared with consumer headphones.
The boom microphone uses active noise-cancelling technology and proximity pickup to isolate the pilot voice; proper boom placement 1–2 cm from the corner of the mouth yields the best signal-to-noise ratio.
Sidetone levels and push-to-talk configuration depend on your aircraft intercom; adjust sidetone to confirm your microphone level without raising voice unnecessarily.
Common audio problems include static from loose plugs, intermittent dropouts from worn cables, and low mic sensitivity from a displaced boom or a failing mic capsule—swap cables and inspect the boom first.
Connectivity and wiring: dual-plug setups, Bluetooth option, and headset adapters
The A20 supports standard aviation plugs: dual GA (PJ-068/YA-200) setup for most general aviation and a 6-pin airline connector for transport aircraft; adapters are available for mixed fleets.
Single-versus dual-plug: dual-plug provides independent left/right audio channels and stereo intercom routing; single-plug setups simplify wiring but may limit channel separation depending on aircraft wiring.
Bluetooth on the A20 handles mobile devices for phone calls and entertainment; do not route primary comms over Bluetooth due to latency and reliability concerns—use Bluetooth for secondary audio only.
Carry a compatibility checklist: confirm plug type for each aircraft, verify intercom grounding practices, and keep an airline adapter and spare cable in your flight bag for rapid swaps.
Power, battery life, and power management best practices
The A20 runs on two AAA batteries or external power; expect 40–45 hours of ANR operation on quality alkaline cells and longer with lithium options.
To avoid mid-flight ANR dropouts: replace batteries before long flights, store batteries in a cool dry place, and test ANR on the ground before engine start.
Rechargeable AAA cells work but check voltage; lower voltage rechargeables can reduce ANR headroom and performance compared with alkaline or lithium cells.
Check battery health via the headset power indicator and keep a compact battery tester in your kit for quick checks on the ramp.
Installation, cockpit ergonomics, and interaction with flight helmets and oxygen masks
The A20 fits under most flight helmets; confirm earcup clearance with your specific helmet shell before flight and adjust headband height to avoid pinching between helmet and earcup.
Oxygen masks can push earcups out of seal—position the boom to the side and test mic placement with the mask donned during preflight checks.
Route the cable to avoid controls: run it to the side of the throttle quadrant and secure with Velcro ties to prevent snagging and to keep the boom from shifting during maneuvers.
Pre-flight checklist item: inspect seals, confirm secure cable routing, verify boom placement, test ANR and mic on the ground, and pack spare seals and batteries.
Performance across aircraft types: from Cessna 172 to King Air and jets
In a Cessna 172 the A20 delivers large perceived gains in comfort and reduced pilot fatigue by cutting prop and wind noise that typically dominates that cockpit.
On twin-props the A20 still reduces engine and propeller noise significantly, though structural vibration and cabin noise sources can limit total reduction.
In pressurized jets the headset handles engine and airflow well; turbofan harmonics at high speeds may remain audible but ATC and SOP communications remain clear.
Use-case guidance: training fleets will appreciate durability and comfort; IFR cross-country pilots value ANR for long periods; corporate pilots get the best return in higher-noise turboprops and bizjets.
Durability, build quality, and maintenance schedule for long-term ownership
Materials include reinforced plastics, metal headband components, and replaceable ear seals; common wear points are cable strain reliefs, ear cushion foam, and the hinge joints.
Expect multi-year service life with normal use; replace ear seals every 12–24 months for heavy use and inspect the cable annually for frays and broken conductors.
Cleaning: wipe ear seals with mild soap and water, avoid immersion, and let components air-dry fully before reassembly to protect internal electronics.
Repair: use authorized service centers for electronics and microphone replacement; mechanical wear like earcup hinges and headband pads are often user-replaceable with OEM parts.
Comparison snapshot: Bose A20 vs top competitors (Lightspeed Zulu, David Clark, Sennheiser)
The A20 beats many rivals on ANR effectiveness and balance of comfort versus weight; Lightspeed Zulu rivals match or slightly exceed comfort for some heads and offer similar ANR tuning.
David Clark models favor passive isolation and robust build for open-cockpit or heavy-duty environments but lack the same ANR sophistication.
Sennheiser headsets often provide strong audio fidelity and ruggedness; their ANR and mic pickup differ in tuning compared with Bose’s voice-focused design.
Choose the A20 for top-tier ANR and voice clarity; pick Lightspeed Zulu if you prioritize certain fit profiles; pick David Clark for passive durability or cost-sensitive fleets.
Practical buying guide: how to get the best deal and avoid counterfeit or grey-market units
Buy from authorized dealers, major flight shops, or direct from certified resellers to ensure warranty coverage and genuine parts.
Red flags for knockoffs: missing serial numbers, altered or absent labels, unusually low prices, and lack of official warranty paperwork.
Refurbished units can be a good value if sold by the manufacturer or an authorized service center; check warranty length and parts replaced before purchasing.
Bundle accessories: replacement ear seals, a high-quality aviation cable, and a sturdy carry case to protect your investment and reduce downtime.
Real pilot reviews and aggregated user feedback: what frequent flyers say
Major praise points across pilot forums: long-term comfort, strong ANR performance, and clear ATC intelligibility even in noisy cockpits.
Common complaints: higher price point and heat inside earcups during long summer flights; some pilots bump into fit differences based on head shape.
Interpret feedback by separating anecdotal fit issues from consistent performance reports; repeated mentions of battery-related ANR dropouts usually point to power management rather than headset failure.
Troubleshooting checklist: quick fixes for common Bose A20 problems in the cockpit
No ANR: replace batteries, check external power connector, inspect seal integrity, and test with another cable to isolate the issue.
Low mic level: reposition boom 1–2 cm from mouth, check PTT wiring at the connector, and swap cables to confirm harness integrity.
Static or intermittent audio: inspect plugs for corrosion, clean connectors, and replace the cable if wire breakage is suspected near the strain relief.
Bluetooth pairing issues: power-cycle both devices, clear prior pairings, and keep the headset firmware up to date via authorized service channels.
Accessories, spare parts, and worthwhile upgrades for customization
Must-have spares: extra ear seals, a replacement microphone kit, and at least one certified aviation cable compatible with your fleet plugs.
Useful add-ons: high-quality Bluetooth modules for stable phone audio, windscreen foam for the boom mic to cut gust noise, and a reinforced carry case for travel.
Third-party accessories can work but verify connector pinouts and shielding; unauthorized mods to electronics can void the warranty.
Money vs mission: evaluating total cost of ownership and resale prospects
Upfront cost for a new A20 is higher than many headsets, but long-term value comes from replaceable parts, authorized repair paths, and strong resale demand among pilots.
For flight schools buying in fleet quantities, factor in warranty bundles, quantity discounts, and spare-part inventories to reduce downtime and repair costs.
Refurbished units reduce upfront cost but check remaining warranty and part replacements; resale value typically holds well for A20s with service records and OEM parts.
Final decision checklist: match your flying profile to whether the Bose A20 is the right headset
Comfort: choose A20 if you fly 2+ hours regularly and need balanced pressure distribution; consider alternatives for very small or very large head shapes.
Noise environment: pick A20 for turboprops, jets, and noisy piston cockpits where ANR improves safety and reduces fatigue.
Budget: new A20 suits pilots who accept higher upfront cost for long-term value; consider refurbished for short-term budget constraints.
Training fleets: weigh repairability and spare parts availability; A20 works well but factor in replacement seals and cables into operating budgets.
Connectivity needs: choose A20 if you require Bluetooth for secondary audio and reliable dual-plug wiring for varied fleets.
Serviceability: prefer A20 if you want authorized service centers and OEM spare parts rather than DIY fixes.
Final steps: try a demo at a flight shop, test with your helmet and oxygen mask, and confirm adapter compatibility for your most flown aircraft before purchase.
