1 Pair (2 pieces) 40mm Hi-End Headphone Dynamic Drivers, Flagship Product

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

$69.99$89.99

40mm Hi-End Headphone Dynamic Drivers40mm Hi-End dynamic driver

  • The voice coil is manufactured in Japan with high-strength copper clad aluminum wire (CCAW) and has been specially optimized for over-driven to increase the toughness and elongation.
  • Luxurious 20-core 5NOFC coils offers clearer and more vocal than ordinary 13-core or 16-core coils.
  • Sound quality/pattern comparable with Sennheiser HD650 (seeHD-650 spec and reviews from headphone.com)
  • Impedance @ 1kHz: 32 Ohms, suitable for smart phones, iPhones and iPads, strongly recommend working with earphone amplifiers.
  • Sensitivity: 102 dB SPL/V
  • Flat frequency response – 20-20000Hz
  • Harmonic distortion < 0.3% at 1KHz
  • Power: 50mW, max 150mW
  • Magnetic steel: N42 NdFeB
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SKU: 40mm Flagship Headphone Dynamic Drivers Category: Tags: , , , , , , ,

Description

This 40mm dynamic driver is an audiophile class product manufactured by Ultrastone ODM factory offering quite similar sound as Ultrastone ED9 and HD650, and designed for upgrading any <$200 headphones for much better sound quality.

Our study clearly shows that most commercial headphones won’t spend the major budget on improving sound quality, especial those priced $100~250 Bluetooth headphones with fancy functions like ANC. So if you are an real audiophile and won’t mind to get your hands dirty, you should think about upgrading the driver unit by yourself! See tutorials on how to upgrade headphone drivers, and be brave!

Features and specifications

  • 40mm Hi-End dynamic driver
  • The voice coil is manufactured in Japan with high-strength copper clad aluminum wire (CCAW) and has been specially optimized for over-driven to increase the toughness and elongation. 
  • Luxurious 20-core 5N OFC coils offers clearer and more vocal than ordinary 13-core or 16-core coils.
  • Sound quality/pattern comparable with Sennheiser HD650 (seeHD-650 spec and reviews from headphone.com
  • Impedance @ 1kHz: 32 Ohms, suitable for smart phones, iPhones and iPads, strongly recommend working with earphone amplifiers.  
  • Sensitivity: 112 dB SPL/V
  • Flat frequency response – 20-20000Hz
  • Harmonic distortion < 0.3% at 1KHz
  • Power: 50mW, max 150mW
  • Magnetic steel: N45 NdFeB

Package

1 Pair (2 pieces) 40mm Hi-End Headphone Dynamic Drivers

if your headphone using dynamic drivers in different sizes (typically 50mm), please contact us for adapters. 

Most recommend to be used with our wooden headphone shell

Note: the dynamic drivers have been paired to ensure sound and quality fully balanced between right and left channels. Therefore we don’t offer single unit.  

40mm Sennheiser headphone drivers

 

40mm Sennheiser headphone drivers

See the demo below how the adapter ring being used for 50mm headphone shell.

Installted in headphone

 

Proceed with caution: dynamic driver is with extremely fragile (1~5μm) diaphragm and can be easily damaged in following situations.

  • Soldering: overheated (>250 degree C) soldering iron or overtime soldering (>2s) may permanently damage the driver. Please managed down both in your DIY. 
  • Installation: the driver has Sintered NdFeB Magnetic inside with extremely strong attraction power. Damage may caused by attracting anything hitting the fragile diaphragm. 
  • Others: applying high-voltage, storing in high temperature/humidity environment… all may cause unrecoverable damage. 

Additional information

Weight 0.1 kg
Dimensions 15 × 10 × 5 cm
Impedance Options

32 Ohm for portal device, 150 Ohm for AMPs

1 review for 1 Pair (2 pieces) 40mm Hi-End Headphone Dynamic Drivers, Flagship Product

  1. Rated 5 out of 5

    bnngv (verified owner)

    Hi,
    My goal is is to have a compact headphone, with a 40 mm drivers, without spending a lot of money. You can buy a used headphone at any thrift shop, the fun part is like a treasures hunt.
    I installed them into a SkullCandy shell, model is “lowrider”. The worst part is removing the original drivers from the shell without breaking the shell itself. With a little bit of soldering skill …. et voila I got a light weight headphone.
    I have it “burn-in” for 72 hours intermittently, I use my ipad gen 7(classic),gen5, gen 4, connect to Fiio E17K ALPEN 2 . I change the volume up and down when ever I can. Is it necessary to do the burn-in, well …Yes! For me it sounds “better”, but it all comes down to your liking.
    Sound: I am not a pro, but I am trying to describe what I hear from these drivers. It gives deeper tight bass, I can feel the thumb thumb sound not just hearing them, not muddy, it does not muffle other “notes’. Clear male voice and female voice not harsh. I do not feel tired listen to my music for one hour, I do not have time to listen beyond 1 hour. I also test it using same players through my Vintage NAD preamp Adcom GTP-500II Now, I stop using my Sony MDR 7506, but I still like the sound from this Sony MDR 7506, but my ears got warm after a while using it though.
    I listen from classic to rock music. I have Sennheiser HD414, AIAIAI Track-Pipe-TM2 with S04 drivers, Koss Porta Pro, Koss KSC75, Mee M6, Mee M6 pro second Gen, Sony MDR 7506, but I put the AIAIAI TM2 in the side because the sound is not what I prefer. I like bass , bass is fun for me.
    Recommended!

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