We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-25 · 7 min read · Independent comparison
If you want to repair a broken pair of premium headphones with OEM-like 32Ω drivers, choose SOULWIT 40mm; if you need a ready-to-use wired headset with a mic for gaming, calls and cross-platform work, choose Joso Headset. These two share a 40mm dynamic driver size and a 32 ohm impedance rating, but that is where the similarity ends — one is a repair part, the other is a complete plug-and-play headset. Here is how I would decide between them.
• SOULWIT 40mm — biggest strength: 32Ω dynamic drivers built as OEM-like replacement parts for a long list of popular over-ear models, so you can restore headphones you already own instead of replacing them.
• SOULWIT 40mm — biggest trade-off: Installation requires soldering, and SOULWIT explicitly warns this can be challenging for beginners. If you have never held a soldering iron, this is not a casual swap.
• Joso Headset — biggest strength: A complete wired headset — 40mm drivers, a bendable noise-cancelling mic, in-line volume and mute, and both USB-A and USB-C adapters in the box.
• Joso Headset — biggest trade-off: It is wired only, so there is no wireless freedom, and it relies on a 3.5mm jack plus a one-time console setup on some Xbox controllers.
• Who each is for: SOULWIT 40mm is for tinkerers reviving dead headphones; Joso Headset is for gamers, students and remote workers who just want to plug in and talk.
SOULWIT 40mm is a pair of replacement speaker drivers, not a finished product. The listing describes a 32 ohm dynamic driver set with a circular, over-ear fit, sold as a one-pair repair part. The whole pitch is compatibility: it is built to fit a wide spread of well-known headphones — QC35/QC45/QC25/QC15/QC2/QC3, AE2 and OE2, the Studio/2/3/Pro line, Solo/2/3/4, Kraken 7.1, AKG K55, Marshall Major II and others. If your drivers have died and the rest of the headphone is fine, this is the part that puts it back in service.
The reason to buy it is simple economics of repair. You already own headphones you like. The pads, headband and frame are intact. Only the drivers are shot. Replacing them keeps a familiar fit and tuning instead of starting over with a new pair. SOULWIT markets the sound as "OEM-like" — clear, balanced and distortion-free, matching the originals rather than reinventing them.
The reason to skip it is the install. SOULWIT is upfront that this involves soldering and that beginners may find it difficult, and they advise making sure you have the tools and experience first. If you are not comfortable opening up a headphone, desoldering old drivers and reconnecting new ones, this part will sit in a drawer. It also carries no stated warranty, so there is no safety net if the job goes wrong. Buy it if you are a hobbyist, a repair-shop regular, or someone who genuinely enjoys this kind of work. Skip it if you want sound today with zero tools.
Joso Headset is the opposite kind of purchase — a complete wired headset you unbox and use. It runs a 40mm dynamic driver at 32 ohms, with a stated frequency range of 20Hz–2000Hz, dual-ear oval earcups in black faux leather and plastic, and a style Joso calls a dual-ear gaming headset. Everything about it is aimed at getting you talking and listening immediately.
The connectivity story is the headline. It uses a 3.5mm jack and ships with both a USB-A adapter and a USB-A to Type-C adapter, so the same headset moves between a PS5 or PS4 controller, an Xbox Series S/X or Xbox One S/X controller (Joso notes a one-time console setup is required, and it will not work with older Xbox One controllers), a Switch, a PC, a laptop, a Mac, an iPad, a tablet or a phone. Plug and play, no extra drivers.
For day-to-day use, the practical details matter more than the spec sheet. The mic bends and rotates 270° so you can wear it on the left or right ear, and it is designed so your voice comes through clearly. In-line controls put chat volume and mic mute at your fingertips — no software menus mid-match. The 5.91ft braided cable resists tangling and protects the oxygen-free copper inside, which Joso frames as cleaner audio transmission with less signal loss and noise. Soft faux-leather cushions and an adjustable headband are built for long sessions, and Joso also positions it for business, Skype, softphone, call centers, online classes and coaching.
The trade-offs are honest ones. It is wired, so you are tethered. It is a chat-and-gaming headset first, not a hi-fi listening tool — the frequency range tops out at 15 KHz per the audio specs, which is fine for voice and game audio but not aimed at critical music listening. And the one-time controller setup on Xbox is a real step you have to do. If you want a single headset that covers play, work and study without fuss, this is the one.
• Best for reviving headphones you already own → SOULWIT 40mm. It exists purely to replace failed drivers in a long list of popular over-ear models.
• Best for plug-and-play → Joso Headset. 3.5mm jack, USB-A and USB-C adapters included, no drivers to install.
• Best for gaming chat → Joso Headset. Bendable 270° mic, in-line chat volume and mic mute, console and PC friendly.
• Best for DIY repair skills → SOULWIT 40mm. Soldering is required, and SOULWIT warns beginners may struggle.
• Best for calls, classes and office use → Joso Headset. Joso positions it for business, Skype, softphone, call centers and online class.
• Best for long wear comfort → Joso Headset. Adjustable headband plus soft, skin-friendly faux-leather cushions designed for long periods.
• Best for matching original tuning → SOULWIT 40mm. 32Ω dynamic drivers marketed as OEM-like, so your repaired pair sounds like it did.
• Best if you want zero tools and zero risk → Joso Headset. No soldering, no warranty voiding, no chance of a failed repair.
In my opinion, most people asking this question should buy the Joso Headset. It is a complete, working product the moment it arrives, and it covers gaming, calls, classes and everyday listening across nearly every device you own. The SOULWIT 40mm is genuinely excellent at one narrow job — saving a specific pair of broken headphones with a soldering iron — and I would only recommend it to someone who already owns compatible cans and is comfortable doing the repair. If that is you, SOULWIT is the smarter move. If it is not, Joso is the buy. Either way, check the current price on Amazon before you commit, since both can shift.
what is 40mm driver in headphones
A 40mm driver is the speaker unit inside the earcup that turns electrical signals into sound, and "40mm" refers to the diameter of that driver. Both the SOULWIT replacement drivers and the Joso Headset use a 40mm dynamic driver at 32 ohms.
what are 40mm drivers in headphones
They are mid-sized dynamic drivers — larger than the tiny units in earbuds but smaller than the biggest over-ear drivers. A 40mm size is a common middle ground that gives enough surface area for decent bass and volume without making the earcups bulky.
which driver is best for headphones
There is no single best size — it depends on the design and tuning. Driver diameter alone does not determine sound quality; impedance, enclosure and tuning matter just as much. Both products here use 32Ω dynamic drivers, but the SOULWIT is a repair part while the Joso is a finished headset.
is 40mm driver good for headphones
Yes, 40mm is a solid, widely used size for over-ear and gaming headsets. It delivers enough output and range for games, chat and everyday listening, which is exactly the role it plays in the Joso Headset and in the original headphones the SOULWIT drivers are built to replace.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.
See also: Perytong Sleep Headphones vs ELECDER i37: Noise Cancelling, gorsun Kids Headphones vs XANAD Hard Case: Foldable on Ear, ADOOPE Kids Headphones vs JBL Tune 510BT