Final audio design (aka F.A.D. or nowadays simply Final) is a Japanese brand that has its roots back in 1974 with phono cartridges, turntables, amps and speaker designs. The development of headphones, however, only started in 2007 for the OEM brand S’NEXT under the head of Molex by most of the former team. Two years later the name Final audio design was brought back to release S’NEXT’s own products. By now Final is independently working on head- and earphones.

SONOROUS III

Combines monitor-like sound quality with a vast sound stage.

The flagship model SONOROUS X employs a driver unit integrated with the front plate, which results in resonance being suppressed and clear sound quality. Here, clear, transparent sound combined with a vast sound stage is generated owing to the same titanium diaphragm employed with SONOROUS X. We've achieved sound quality that faithfully reproduces the source music and is pleasant to listen to.

The flagship model SONOROUS X employs a driver unit integrated with the front plate, which results in resonance being suppressed and clear sound quality. Here, clear, transparent sound combined with a vast soundstage is generated owing to the same titanium diaphragm employed with SONOROUS X. We've achieved sound quality that faithfully reproduces the source music and is pleasant to listen to.

Hi-Fi+ (Best Closed Back Headphone 2016, UK)

"HiFi Philosophy" GOLDEN ANALOG 2016, Poland

"Best Closed Back Headphone" 2022, UK

1.) Audio-Technica ATH-M50x (Large aperture w/ rare earth magnets, 45mm; connection: Wired; Interchangeable, Rechargeable battery)

 2.) Beyerdynamic DT 700 PRO X (STELLAR.45; connection: Wired; Interchangeable, Rechargeable battery)

3.) Beyerdynamic DT 770 PRO (Dynamic driver unit; connection: Wired, Fixed)

10.) Sennheiser HD 280 PRO (Dynamic driver unit, closed; connection: Wired, Fixed)

 - Robust construction

 - Excellent isolation

 - Replaceable components

Specifications:

Headphone fit type - Over-Ear

Type: Dynamic driver-equipped closed-back, circumaural headphones

Housing: ABS Thermoplastic

Driver complement: 50mm dynamic-type full-range with titanium diaphragm

Maximum SPL: 105dB

Impedance: 16 Ohms

Frequency response: Not specified

Cable entry: Dual Entry - Locking

Cable length: 1.5m

Connector: Straight, 3.5 mm stereo jack.

Detachable cable: Yes

Driver Size: 50mm

Driver type: Dynamic

Earcup design: Closed Back

Impedance: 16Ω

Sensitivity: 105dB

Weight: 410g

Warranty: 2 years

Features:

 - Tuned for a clear, transparent sound signature with a wide soundstage and enhanced bass

 - Earpads with sound absorption section contribute to clear sound quality

 - BAM mechanism realises bass and deep three-dimensional space reproduction

 - Rigid ABS housing finished with a rough coating

 - Integrated front plate and titanium diaphragm driver unit

 - Detachable cable with locking function

Rigid ABS housing with a rough coating:

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.

The titanium diaphragm driver unit is integrated into the front plate:

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 realising clear sound quality. The housing employs hard resin composed 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.

Precision sound:

Sonorous III headphones employ a driver unit integrated with the front plate, which results in resonance being suppressed and clear sound quality. With the same titanium diaphragm used in the Sonorous X, this model has been tuned to offer a clear, transparent sound signature with wide staging and enhanced low-end extension.

Balancing air movement:

BAM technology mechanism optimises the air movement inside the housing and controls unwanted vibrations for balanced, natural sound that reduces unwanted sibilant high-frequency sounds. Sonorous III has been tuned to an extremely accurate level based on new knowledge and expertise gained from the development of Sonorous X.

Superior craftsmanship:

To achieve high precision with the hard ABS housing, simulations were carried out until the appropriate level of fluidity with respect to the moulding material was achieved. The rough textured finish suppresses unnecessary vibrations.

Improved earpads:

To achieve a superior fit Final has used synthetic leather earpads and chosen a sponge with just the right amount of flexibility letting the Sonorous III achieve clear sound with the highest levels of wearing comfort and isolation. 

Sound quality reviews

headphones where a natural flatness and the sound field stand out. Extremely well-balanced, they produce a sound that you don’t tire of even when listening for long periods of time; having few genres that they do not handle well is also one of their characteristics. While they are monitor-like headphones, they are also headphones that you will enjoy using."

www.headphoneauditions.nl

"If you’ve ever yearned for the multi-faceted excellence of top-tier headphones such as Final’s SONOROUS X, yet have found their four-figure price tags daunting, the very good news is that the SONOROUS III can take you a surprisingly substantial way toward the sonic mountaintop at an accessible, Everyman price. The miracle, quite frankly, is hearing how much of the flavour of Final’s top model carries through into the SONOROUS III, which is why this headphone is both a sonic treasure and an outright bargain."

https://hifiplus.com/articles/final-sonorous-iii-headphones

What's in the box:

1 x Final Sonorous III headphones

1 x Detachable audio cable (1.5m)