Choice between these headsets depends on your specific flight priorities. Choose the Bose A20 if you want the industry benchmark for lightweight design and top-tier noise cancellation. Select the Lightspeed Zulu 3 if you prioritize long-term durability, a stronger warranty, and better overall value with comparable performance.
2Bose A20 Aviation HeadsetBest if you want the industry standard for silence and low weight. It is widely recognized for superior noise cancellation, though it may trail slightly in connectivity features compared to competitors.50%
Choosing between the Bose A20 and the Lightspeed Zulu 3 is the classic face-off in general aviation . Both are elite, top-tier ANR (Active Noise Reduction) headsets, but they have distinct personalities.
Here is how they stack up head-to-head:
To see a detailed visual breakdown of how these two stack up side-by-side, check out this comparison:
Noticeably lighter (about 12 oz vs 14 oz for the Zulu 3 ) with lower clamping force . It uses a sheepskin-wrapped headband that "floats" on top of your head. Most pilots find the A20 disappears on your head during a 4-hour cross-country.
Features slightly larger ear cups and deep, contoured ear seals. Pilots with larger heads, larger ears , or thick glasses often report that the Zulu 3 distributes weight better around the ear rather than on top of the head.
2. Active Noise Reduction (ANR) & Audio
Generally considered the gold standard for pure quiet. Its ANR attenuation is slightly superior at snuffing out low-frequency engine and propeller roars. Audio crispness for comms is exceptionally sharp.
Incredible quiet as well , though a hair behind the A20 in absolute attenuation . However, the Zulu 3 has a larger 40mm driver , meaning music streaming sounds richer, deeper, and more robust than on the Bose.
3. Build Quality & Durability
Built well with high-grade plastics and composite materials to keep it featherlight. It's durable, but feels a bit more "instrument-like" and delicate compared to the tank-like Lightspeed.
The undisputed winner in ruggedness. It features magnesium ear cups, a stainless steel headband, and Kevlar-reinforced cables. Lightspeed backs this up with a stellar 7-year warranty (compared to Bose's 5-year warranty).
4. Control Module & Features
Simple, reliable layout. The Bluetooth integration handles dual-audio streaming smoothly, but the physical control box feels a bit more compact.
Features a very tactile, easy-to-operate control box with distinct buttons that you can navigate blindly by feel in heavy turbulence. Its "ComPriority" feature automatically drops music volume cleanly when radio traffic comes through.
Summary Verdict
Go with the Bose A20 if your priority is featherlight comfort and the absolute highest level of noise cancellation for long days in the cockpit.
Go with the Lightspeed Zulu 3 if you prefer a tighter budget, rugged all-metal durability , a longer warranty, extra ear cup room for glasses, and richer bass response for music.
If you want to narrow it down further, tell me:
What type of aircraft do you fly most often (loud tailwheel, quiet glass-cockpit trainer, multi-engine)?
Do you wear glasses or sunglasses on every flight?
If you’re choosing specifically between the Bose A20 and Lightspeed Zulu 3, they’re both excellent ANR headsets, but there’s a pretty clear split in what each emphasizes.
Side-by-side
Bose A20
Lightspeed Zulu 3
ANR
ChatGPT Search· Sep 22, 2026
I’ll compare them on the things that matter most in the cockpit: ANR performance, comfort, audio/mic quality, durability, connectivity, and value.
The Bose A20 and the Lightspeed Zulu 3 are two titans of the general aviation cockpit. (Note: While Bose has since introduced the newer A30 , the A20 remains heavily circulated and used, and Lightspeed also offers the [Lightspeed Delta Zulu ](https://www.lightspeedaviation.com/) with a built-in CO detector).
For a pilot choosing between the Bose A20 and Lightspeed Zulu 3, you’re really choosing between maximum comfort/low weight and ruggedness/value. Both are excellent ANR (active noise reduction) headsets with Bluetooth, good microphones, and cockpit-friendly features.
Choosing between the Bose A20 (and its successor market footprint) and the Lightspeed Zulu 3 comes down to legendary active noise cancellation versus rugged value and ear comfort. Both are top-tier ANR (Active Noise Reduction) choices, but they feel and perform quite differently in the cockpit.
Watch these pilot reviews comparing comfort, audio quality, and features between Bose and Lightspeed headsets:
If you’re buying new in 2026, I’d lean Lightspeed Zulu 3 over the Bose A20—but there’s an important wrinkle: the A20 is discontinued, while Bose’s current successor is the A30.
If you’re choosing today, I’d take the Lightspeed Zulu 3 over the Bose A20—unless you find a genuinely good deal on a new/unused A20 or have a specific reason to prefer Bose.
One important wrinkle: Bose discontinued the A20 in 2023, so you’re generally looking at remaining stock or used/refurbished units.
The Bose A20 and the Lightspeed Zulu 3 have long been the two heavyweight champions of the general aviation cockpit . While Bose has since introduced the newer A30 and Lightspeed has the Delta Zulu, both the A20 and Zulu 3 remain heavily sought after (with the A20 often found on the secondary market or via remaining stock, though superseded by the A30).
Here is how they stack up head-to-head to help you decide which fits your flying style.
If you're choosing specifically between the Bose A20 and Lightspeed Zulu 3, I'd take the Zulu 3 for most GA pilots in 2026—especially if buying new. The big caveat is that the A20 has been discontinued, while the Zulu 3 is still actively supported.
Sources AI cites
27% of citations to these sources link to brands' own websites.
Bose's documentation specifies 12 oz and at least 45 hours from two AA batteries, while Lightspeed lists the Zulu 3 at 14.6 oz and about 40 hours.
Where I'd focus as a pilot
For long days in a piston/turboprop: the Zulu 3's fit is particularly compelling. Lightspeed uses tapered seals designed to fit around the jaw and glasses, and its ANR is optimized over a broad range of low-frequency noise.
For minimum weight: the A20 wins at 12 oz versus 14.6 oz. That 2.6 oz difference doesn't sound like much, but after several hours on your head, it can matter.
For rough everyday use: I'd give the nod to the Zulu 3's construction. Magnesium earcups, stainless-steel structure and a Kevlar-core cable are specifically designed around durability, and Lightspeed backs it with a seven-year warranty.
For regulatory/airline considerations: this is where the A20 has an important advantage. Bose's A20 is TSO-C139 approved; Lightspeed says the Zulu 3 isn't TSO-certified. Lightspeed also notes that TSO isn't generally required for GA, but it can matter for certain commercial/airline operations.
One important 2026 consideration
The A20 has been discontinued; Lightspeed's own comparison page notes the discontinuation, while Zulu 3 remains an active product.
That's significant if you're buying new. You're essentially deciding between a mature, discontinued headset with a huge installed base and a currently supported Zulu 3. The A20's continued availability through aviation retailers/refurbished channels can make the price comparison unusual.
Bose A20 ANR Aviation Headset - $995.00 (J.A. Air Center)
If both are available to you at roughly the same price, I'd look at it this way:
Lots of piston/turboprop hours + comfort/durability: Zulu 3
Long hours + you strongly prefer a lighter headset: A20
Professional operation where TSO matters: A20
Buying new and wanting ongoing manufacturer support: Zulu 3
You already know the A20 fits your head perfectly: don't underestimate that—fit and seal matter enormously with ANR.
One wrinkle: if you're shopping new in 2026, I'd also put the Bose A30 into the comparison rather than automatically buying an A20. The A30 is the successor to the A20, and current retail pricing is around the same territory as premium aviation headsets.
If you tell me what you fly (e.g. 172, Bonanza, King Air, Citation, airline jet), how many hours/month, and whether you use glasses, I can narrow this down much more specifically.
Widely considered the gold standard for lightweight comfort . It exerts minimal clamping force, has plush ear seals, and "floats" on your head. If you have a sensitive head or do multi-hour cross-countries, the A20 is famous for disappearing on your ears.
Slightly heavier and features a more robust, contour-built fit with robust contoured ear seals. It has a slightly tighter clamp out of the box, which some pilots prefer for a secure seal, though pilots with very narrow or pointed heads occasionally note it can rest heavily on the absolute crown.
2. Build Quality and Durability
Uses more plastics in its construction to keep weight down. It’s durable for normal cockpit environments, but feels a bit more fragile compared to its competitor.
Built like a tank. It features contoured stainless steel headbands and magnesium ear cups wrapped in a rugged Kevlar-reinforced cord. Lightspeed backs this up with an impressive 7-year warranty (compared to Bose's 5-year warranty).
3. Audio and Bluetooth Integration
Features seamless Bluetooth pairing and intuitive multi-device connectivity options depending on the module version. Its audio mixing allows auxiliary/Bluetooth audio to blend smoothly with incoming radio traffic.
Features "Com Priority," which automatically drops your music volume down dynamically when a radio transmission comes in (which many pilots find cleaner than Bose's mix/mute system). Physical volume control adjustments on the Zulu 3 feel very tactile and precise.
4. TSO Certification
TSO-certified, meaning it meets FAA standards for commercial flight operations. If you fly airlines or plan to transition to a professional/commercial flight deck that requires TSO gear, Bose checks that box.
Not TSO-certified (though it's fully certified for 98% of general aviation/Part 91 training and private flying).
The Verdict
Go with the Bose A20 if your top priorities are ultra-lightweight, cloud-like comfort over 6+ hour legs and a TSO rating for commercial/professional flight paths.
Go with the Lightspeed Zulu 3 if you value rugged, indestructible physical build quality, a longer 7-year warranty, and a slightly lower price point without sacrificing top-tier active noise reduction (ANR).
To help narrow it down, tell me:
What type of flying do you mostly do (training, weekend cruising, commercial)?
What is your aircraft environment (loud vintage tailwheel, piston single, multi-engine)?
The A20 is famously light and has very low clamping pressure. If you fly 3–6 hour legs, that reduced head pressure can matter.
It’s also a little more compact and less noticeable in a cramped cockpit.
Audio quality
Many pilots prefer the A20’s audio tuning for music and voice clarity.
The microphone performance is excellent and very consistent.
Ergonomics
The control module layout and side-swappable mic are nice touches for pilots who care about setup flexibility.
Where the Lightspeed Zulu 3 wins
Durability
The Zulu 3 feels more like a piece of cockpit equipment built to be abused: metal components, stainless headband, and a reinforced cable.
Value
It delivers most of the same premium features for less money in many markets.
Fit for larger ears
The ear cups are roomy, which some pilots find more comfortable, especially with glasses.
Flight recording
Lightspeed’s FlightLink app support lets you record cockpit/intercom audio with compatible mobile devices.
My recommendation by flying style
Primary trainer / Cessna 172 / Piper Archer / Diamond / general GA:
→ Lightspeed Zulu 3. It’s hard to beat for the money.
Professional pilot or frequent long cross-countries:
→ Bose A20 if the lighter feel matters to you.
Noisy aircraft (older taildraggers, open cockpits, high-performance singles):
→ Lean Zulu 3 because many pilots like its low-frequency attenuation and robust construction.
If you fly passengers often:
→ Either works; many owners buy one premium headset for themselves and a second (often Zulu 3) for passengers.
One additional note: if you’re buying new rather than used, the Bose A20 has largely been replaced in Bose’s lineup by the newer Bose A30, so pricing and availability may affect the decision.
If you tell me what you fly (172, Bonanza, Cirrus, turbine, helicopter, etc.), typical flight length, and whether you wear glasses, I can narrow it down.
Active Noise Cancellation (ANR): Industry-leading. It clamps down on high-frequency turbine and low-frequency piston drone exceptionally well.
Audio & Bluetooth: Crisp, clear audio separation for comms, and seamless auxiliary/Bluetooth integration.
Fit & Clamping Force: Uses a tension spring on the headband. It is lightweight, but the clamping force can feel slightly tighter on larger heads. Ear cups are slightly smaller.
Build: Renowned reliability, though lots of plastic components. Backed by fantastic customer support.
Lightspeed Zulu 3
Comfort & Ear Seals: Features massive, contoured faux-leather ear seals that comfortably accommodate larger ears and distribute side pressure evenly. Many pilots find it superior for all-day cross-countries if the Bose clamp gets to them.
Build Quality: Rugged, contoured stainless steel headband with kevlar-reinforced cables designed to take a beating in tight GA cockpits.
Value: Typically comes in at a lower price point than Bose flagship models while offering a stellar warranty and robust features.
Audio & ANR: Excellent ANR—just a hair behind the Bose in absolute quieting capability, but more than enough for any piston or light turbine single/twin.
Quick Comparison Breakdown
Noise Reduction: Winner is Bose A20 (by a narrow margin, best-in-class quiet).
All-Day Comfort / Ear Real Estate: Winner is Lightspeed Zulu 3 (larger ear cups, great weight distribution).
Durability / Toughness: Winner is Lightspeed Zulu 3 (stainless steel and kevlar build feels virtually indestructible).
To help narrow this down:
What aircraft are you primarily flying (piston single, multi, jet)?
Do you wear glasses/sunglasses or have larger ears?
Lightspeed itself says the Zulu 3 and A20 are very close acoustically, with the Zulu 3 having an edge in low-frequency attenuation and the A20 an advantage in some mid frequencies. Lightspeed also reports that professional pilots who flew both rated the Zulu 3 more comfortable 2:1.
What I'd choose
For GA / piston / turboprop flying:Zulu 3.
It's the better buy today if you're deciding specifically between these two. You get comparable ANR and communications, excellent comfort, a longer warranty, and you avoid buying a discontinued headset.
If you can find a genuinely new A20 at a substantial discount: I'd consider it. The A20 remains an excellent headset, and its lighter weight and very low clamping force are meaningful advantages on long legs. But I'd want a good price and confidence about warranty/support.
If you're willing to spend more: I'd actually put the Bose A30 into the comparison. Bose currently lists it at $1,299 and it is the direct successor to the A20, with three selectable ANR modes, tool-free mic swapping, and TSO/EASA certification.
One other 2026 wrinkle: Lightspeed has introduced the Zulu 4, the successor to the Zulu 3, so I'd compare Zulu 3 vs. Zulu 4 vs. A30 before spending ~$900–$1,300.
My ranking for a pilot buying today:
🥇 Zulu 4 — if budget allows
🥈 Bose A30 — especially if TSO matters
🥉 Zulu 3 — best value
A20 — excellent, but I'd only buy one at a compelling price
If you tell me what you fly (e.g., 172, Cirrus, King Air, jet), roughly how many hours/month, and whether you're buying dual-plug or LEMO, I can make a much more specific recommendation.
Lightspeed says the Zulu 3 has 30% more ear-seal padding, larger ear cavities and a headband designed to distribute pressure more evenly. Its construction is also substantially more metal-intensive, with magnesium ear cups, stainless steel components and a Kevlar-reinforced cable.
The A20's big advantage is its proven ANR and very low clamping force. Bose specifically designed its ANR system around sensing cockpit noise both inside and outside the earcups. It is also TSO-certified, whereas the Zulu 3 isn't.
For an actual pilot, I'd break it down this way
Long cross-country / GA piston:Zulu 3. I'd favor its comfort, seal and low-frequency attenuation.
Very noisy piston aircraft:Zulu 3, particularly if engine/prop noise is your main annoyance.
Lots of glasses:Zulu 3 gets the nod; its tapered seals are designed to maintain a seal around glasses frames.
Small head: I'd try both before buying. Fit matters enormously with ANR, and the A20's low clamp can work better for some pilots.
Airline/commercial operation where TSO matters:A20, assuming your operation accepts it and you can source a legitimate unit. The Zulu 3 isn't TSO-certified.
Buying new and keeping it for years:Zulu 3, no question. The seven-year warranty and current support are meaningful advantages.
One more thing: if you're buying new in 2026, I'd actually put the Lightspeed Zulu 4 into the comparison rather than buying a Zulu 3 automatically. The Zulu 3 remains available, but it's no longer Lightspeed's newest generation.
If you tell me what you fly (e.g. 172, SR22, King Air, helicopter), roughly how many hours/month, and whether you're buying GA dual-plug or LEMO, I can tell you which one I'd personally put on your head.
Bose A20: Known for being ultra-lightweight with a lower clamping force. It uses a sheepskin-wrapped cushion and a tension spring headband. It rests very gently on the head, which is fantastic for short-to-medium flights, though some pilots with larger heads find the ear cups a bit compact.
Lightspeed Zulu 3: Features slightly larger, contoured ear seals (tapered at the jawline) and a sturdier stainless steel headband. The clamping force is distributed a bit more broadly . If you wear thick sunglasses frames or have larger ears, the Zulu 3 often wins out on long cross-countries because the ear cavity feels more spacious.
2. Active Noise Reduction (ANR) and Audio
Add to list Bose is an audio titan, and it shows . The ANR baseline on the A20 is slightly quieter and more dialed-in across deep low-frequency engine rumbles. Audio crisper for ATC communications, and music streaming via Bluetooth has a richer profile.
Add to list Excellent ANR performance that trades blows closely with Bose, though slightly more ambient white noise might bleed through in extreme cabin environments. Audio is clear and natural, and Lightspeed’s "ComPriority" feature automatically lowers music volume when radio traffic comes in.
3. Build Quality and Durability
Add to list Mostly high-grade plastics and composite construction. It is lightweight, but some components feel slightly more delicate compared to Lightspeed's tank-like build.
Add to list Built with rugged, kevlar-reinforced, kink-free cables and a robust metal headband. It feels practically indestructible and handles being tossed into a flight bag day after day with zero complaints.
4. Value and Warranty
Add to list Generally commands a higher resale value and brand prestige, backed by Bose's reliable customer service.
Add to list Typically comes in at a slightly lower price point than Bose flagships and features an industry-leading 7-year warranty (compared to Bose's 5-year warranty), showing serious manufacturer confidence in durability.
The Verdict
Go with the Bose A20 if your priority is absolute maximum ANR quietness , crisp audio quality, and a feather-light feel that virtually disappears on your head.
Go with the Lightspeed Zulu 3 if your priority is rugged durability , a roomier ear cup for glasses/larger ears, a longer warranty period, and a slightly better value-to-performance ratio.
To help narrow it down further, tell me:
What kind of aircraft do you fly (noisy vintage tailwheel, pressurized twin, or quiet trainer)?
Do you wear glasses or sunglasses with thick frames?
Bose A20 Aviation Headset - $995.00 (J.A. Air Center)
Quick comparison
Bose A20
Lightspeed Zulu 3
ANR
Excellent
Noise profile
Slight edge in mid-frequency attenuation
Comfort
Excellent
Weight
~12 oz
Bluetooth
Yes
Battery
~40+ hr
Construction
Lightweight/plastic-heavy
Warranty
5 years originally
Current status
Discontinued
TSO
Yes
Best reason to buy
Proven A20 fit/feel, TSO
Lightspeed itself says the Zulu 3 has better low-frequency attenuation while the A20 has an advantage in some mid frequencies. Both have excellent communications quality and essentially the same major features such as Bluetooth, ComPriority and automatic shutoff.
Where I'd lean
Choose the Zulu 3 if:
You're flying piston singles/twins and want a headset for the next 5–10 years.
You fly a lot and care about long-term durability.
You wear glasses—the Zulu's tapered seals are specifically designed to maintain a good seal around glasses.
You want the longer warranty. Lightspeed currently provides 7 years on new Zulu 3s.
You're buying new and don't have a strong preference for Bose's fit.
Choose the A20 if:
You already know the A20 fits your head/ears exceptionally well.
You find a good-condition, reasonably priced A20 from a reputable seller.
TSO certification matters for the aircraft/job you're flying. Lightspeed notes that the Zulu 3 is not TSO-certified, whereas the A20 was.
One important 2026 wrinkle: I would not pay a premium for an A20 simply because it's an A20. Bose discontinued it in 2023, and Bose's current around-ear aviation headset is the A30.
My pilot-oriented verdict
Zulu 3: 9/10A20: 8.5/10
For a working GA pilot, I'd buy the Zulu 3. It's slightly heavier, but the combination of comfort, robust construction, excellent ANR, and a 7-year warranty makes it the more sensible long-term purchase.
If you're flying turboprops, jets, helicopters, or doing 500+ hours/year, though, the answer changes somewhat. Tell me what you're flying (e.g. 172, Cirrus, Bonanza, King Air, helicopter, jet) and roughly how many hours/year, and I'll tell you which headset I'd personally buy for that cockpit.
