Final Audio

Final Audio - Sonorous III Closed-Back Over-Ear Headphones

Product SKU: FI-SO3BD3

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Product Details from the Brand

Final Audio Sonorous III Closed-Back Over-Ear Headphones

In the Final Audio Sonorous III Closed-Back Over-Ear Headphones, the ear pads play an important part in sound quality. When there is a space between the ear pad and the ear, low frequency acoustic pressure changes greatly, and this greatly influences sound quality. So as to achieve a superior fit where it is hard to create a space, we’ve employed synthetic leather, which has an equal amount of flexibility both horizontally and vertically, and have chosen a sponge with just the right amount of flexibility. Establishing apertures on the inside and the outside of the ear pads makes for clear sound quality with sealed headphones.


BAM is the approach of optimizing the balance of pressure at the front and rear of the diaphragm. SONOROUS III has been tuned to an extremely accurate level based on new knowledge expertise gained from the development of SONOROUS VIII and SONOROUS X.

To achieve a high level of precision with the hard ABS housing, simulations were carried out until the appropriate level of fluidity with respect to the molding material was achieved. A textured finish that is also used with high-grade camera lenses is applied, and unnecessary vibrations are suppressed.

With SONOROUS X, the flagship model of the SONOROUS series, we integrated the driver unit with the front plate, and this suppresses resonance as well as realizing clear sound quality. The housing employs hard resin comprised of hard polycarbonate strengthened with 30% glass added to it. Resonance is suppressed and clear sound quality is achieved. Titanium has been employed for the diaphragm. This plays a role in enhancing resolution and the generation of high frequency harmonic overtones.

A metal plated monaural plug with a diameter of 3.5mm is employed for the connector on the headphones. By employing a connector with a long track record, trouble resulting from poor connection through changes over time is avoided. This is a cable with a locking mechanism that rotates 90°.

Final Audio Sonorous III Closed-Back Over-Ear Headphones Technical Specifications

Frequency Response N/A
Impedance 16 Ohms
Sound Pressure Level (SPL) 105 dB
Headphone Housing Material Titanium diaghpram, ABS housing
Driver Style Balanced Armature
Cable Length 1.5 m
Weight 410 g

Product Reviews

Final Audio - Sonorous III Closed-Back Over-Ear Headphones

Customer Reviews
5.0 Based on 1 Reviews
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Edwin M.
United States United States
Sometimes you need to skip the budget line and jump in the middle.

I began my experience with this headphone at the Audio46 store in NYC. I was introduced to the ATH-M50x, DT 770 as alternatives to starter headphones. I wanted more power and more intimate sounds. I am not well versed in describing sound quality however I can tell you what I experienced. I was blown away with the music I simply had music on my phone, powered by the Chord Mojo (awesome btw). Because of this headphone I am able to enjoy R&B/Hip-Hop, Metal, Pop, Classical, Country ( I have a subscription to TIDAL so I'm all over the place with music). I feel this was a great investment in my goal of finding relaxation and introducing me to a world of music I've been waiting to hear most of my life and properly in my opinion. I could have purchased this cheaper elsewhere but with my purchase is also thank you to the employees at Audio46 for assisting me. And if you're purchasing items from this store please leave reviews. Thanks for reading. TL;DR Buy headphones, Great sound, Sound isolation once audio starts. Doesn't need dac/amp but to make them shine, yes. Enjoy.


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