ULTRASONE Signature QUANTUM – Compact High-End Audiophile Headphones with S-LOGIC5 and 40 mm GTC Driver

The ULTRASONE Signature QUANTUM is the compact reference headphone for demanding audiophile listeners. Featuring the legendary 40 mm GTC driver, known from the Edition 15 and Founders Series, it delivers a warm, transparent, slightly bass-emphasized, and highly precise sound across all genres. With S-LOGIC5, Balanced Audio as standard, exclusive LUMINOX cabling, premium engraved glass plates, and an elegant aluminum case, Signature QUANTUM is built for those who expect more than excellent sound.

Highlights

• Audiophile reference sound: Warm, transparent, slightly bass-emphasized, and highly precise tuning for natural high-end listening across every music genre.
• Legendary 40 mm GTC driver: Known from the Edition 15 and Founders Series, this driver is now used in the Signature Series for the first time.
• Gold and titanium coating: Gold coating supports confident bass and natural mids, while titanium coating on the cone delivers ultra-clear highs with outstanding transparency.
• S-LOGIC5 & Balanced Audio: Fully symmetrical, precise sound reproduction with exceptional depth layering, spatial perception, detail, and standard balanced audio support.
• Premium equipment included: Exclusive LUMINOX internal wiring, two high-end LUMINOX cables including one balanced cable, screw-lock stainless-steel connections, FGC comfort technology, engraved glass plates, and a premium aluminum case.

Product Description

The ULTRASONE Signature QUANTUM is made for listeners who refuse to compromise. It is designed for audiophiles who want to experience music with warmth, transparency, precision, depth, and emotion — all in one compact high-end headphone.

At its core is the newly tuned 40 mm GTC driver. This legendary driver, known from the Edition 15 and the Founders Series, is now used in the Signature Series for the first time. It delivers a mature, warm, transparent, slightly bass-emphasized, and highly precise sound that brings out the full character of every genre — from classical and jazz to singer-songwriter, rock, pop, and electronic music.

The driver’s special coating gives Signature QUANTUM its unique sound signature. The gold coating contributes to confident, pleasant bass and natural mids, while the titanium coating on the cone creates ultra-clear highs with exceptional clarity and transparency. The result is a sound that feels emotional, controlled, detailed, and refined.

With S-LOGIC5, Signature QUANTUM delivers a fully symmetrical and highly precise listening experience. Instead of keeping the sound trapped inside your head, it opens a spatial stage with impressive depth layering, accurate positioning, and outstanding detail. Music becomes more natural, more dimensional, and more immersive.

For maximum signal integrity, the internal wiring has been newly developed and produced with premium materials by LUMINOX. Two exclusive high-end LUMINOX cables, developed specifically for Signature QUANTUM, are included — one of them balanced. Together with Balanced Audio as standard, they create a stable, refined, and precise signal path for true high-end performance.

Signature QUANTUM also meets the highest standards in design, comfort, and usability. Premium engraved glass plates, detachable screw-lock cables with stainless-steel connections, a foldable and rotatable headband with FGC technology, and an elegant aluminum case make it a complete audiophile package.

Thanks to effective passive noise cancelling, Signature QUANTUM is not limited to home listening. It is also an excellent travel companion for demanding listeners. Paired with the new ULTRASONE NAOS MICRO DAC, it becomes a compact mobile high-end setup for precise, enjoyable listening wherever you are.

Rediscover your music with the compact audiophile reference from ULTRASONE.

Technical Specifications:

Design: Closed-back headphones, foldable, swivel and foldable ear cups

Cable: Detachable cable with 3.5 mm plug, TRS or TRRS, screw-on, stainless steel fixation

Headband: Softly padded headband with medium-firm fit and Sheepskin leather cover, metal joints

Comfort: FGC technology for improved comfort, mesh fabric for improved ventilation

Ear pads: 25 mm over-ear pads with memory foam and Sheepskin leather cover, extended ear space

Warranty: 2 years, extendable depending on the seller

Sound system: S-LOGIC5 with symmetrical DDF for precise, immersive surround sound

Weight: 364 grams without cable

Driver: 40 mm GTC driver with innovative gold-titanium plated diaphragm for musicality and precise reproduction

Magnets: NdFeB

Frequency response: 6 – 44,000 Hz

Impedance: 40 ohms

Rated SPL: 103 dB

Included accessories:

Cables: 2 cables

Unbalanced:

Straight LUMINOX SPOFC cable, 3.0 meters long, black-red mesh with gold-plated 3.5 mm TRS jack, screwable gold-plated adaptor to 6.35mm

Balanced:

Straight LUMINOX 5NOCC-SPOFC cable, 1.5 meters long, black-red mesh with gold-plated 4.4 mm TRRRS jack

Transport: Aluminum hardcase, with high quaity foam inlays

Identification: Serial number on headband with manufacturing date code

Packaging: Sustainable black-red cardboard-box with print

EAN Number: 404 3941 11 0038