JBL Unveils 'Summit K2,' a 380mm 3-Way Floorstanding Speaker Featuring Newly Developed Drivers, Celebrating 80 Years of Acoustic Innovation

Harman International Inc. (Headquarters: Chiyoda-ku, Tokyo; President and CEO: Takuma Kuwahara) announces the launch of the 'Summit K2,' a floorstanding speaker from JBL—the world’s leading audio brand originating in California, USA. Featuring newly developed drivers and embodying 80 years of acoustic innovation, the Summit K2 will be available from autumn 2026.

This model is a 380mm 3-way floorstanding speaker that consolidates JBL’s acoustic technologies and design philosophies refined over eight decades. Building on the legacy of the Project K2 series—which, alongside the Project EVEREST series, has represented JBL’s philosophy and innovation—the Summit K2 is positioned as the next-generation reference model through advanced acoustic design.

The speaker incorporates newly developed driver configurations designed specifically for this model.

For high frequencies, three units of the patented 38mm D2 compression driver 'D2815' are installed, coupled to an HDI™ horn via a proprietary 3-into-1 manifold. This achieves exceptional resolution and precise directivity control across the crossover and entire audible frequency range.

For midrange, a 250mm mid-bass unit 'JMW250SC' is equipped. It features an HC4 sandwich cone, a differential drive structure with dual neodymium magnetic circuits, and dual inverted dampers, delivering high responsiveness and low distortion.

For low frequencies, a 380mm woofer 'JW380SC' is installed. It employs a new differential drive structure with an HC4 sandwich cone and multi-neodymium magnetic circuit, dual inverted dampers supporting both ends of the voice coil bobbin, and—unprecedented in consumer models—a 4-inch dual voice coil. This ensures excellent linearity and ultra-low distortion even at large excursions, enabling rich, powerful low-frequency reproduction.

Additionally, the Summit K2 features a MultiCap™ crossover network for high-efficiency signal transmission, a high-rigidity enclosure with superior vibration damping, and custom isolation feet from IsoAcoustics. These reduce unwanted vibrations from the installation surface, allowing the speaker to deliver its full performance. From subtle nuances to dynamic peaks at high volumes, the Summit K2 faithfully reproduces every element of music.

Developed under a new design philosophy while inheriting the Project K2 lineage, this product achieves an unprecedented level of realism and scale demanded by high-end audio. With overwhelming dynamics and refined expressiveness, it elevates the home listening experience to a new dimension.

Product Highlights

- Next-generation reference model featuring newly developed drivers, continuing the Project K2 legacy

- Three patented D2 compression drivers 'D2815' coupled to an HDI™ horn via a unique 3-into-1 manifold, enabling superior directivity control and high-resolution reproduction across a wide frequency range

- The 250mm mid-bass unit 'JMW250SC' features an HC4 sandwich cone, a differential drive structure with dual neodymium magnetic circuits, and dual inverted dampers

- The 380mm woofer 'JW380SC' features a new differential drive structure with an HC4 sandwich cone, multi-neodymium magnetic circuit, dual inverted dampers, and—first for a consumer model—a 4-inch dual voice coil

- High-efficiency signal transmission via MultiCap™ crossover

- Suppression of unwanted vibrations through high-rigidity enclosure design

- Terminal cup equipped with rhodium-plated binding posts supporting tri-wiring and tri-amping

- JBL / IsoAcoustics™ acoustic isolation feet reduce installation-induced vibrations

Appearance Options

Ebony Gloss (EG), Black Gloss (BG)

Drivers

[D2815]

[JMW250SC]

[JW380SC]

Main Specifications

Model Name

Summit K2

Type

380mm 3-way floorstanding speaker

Configuration

38mm D2 compression driver (D2815) × 3 + Sonoglass® HDI™ horn

250mm mid-bass driver (JMW250SC)

380mm woofer (JW380SC)

Impedance

4Ω

Sensitivity (2.83V/1m)

92dB

Frequency Response (-6dB)

24.6Hz – 23.5kHz

Crossover Frequencies

270Hz / 1,080Hz

Dimensions (W×H×D)

635 × 1,280 × 459 mm

Weight

108kg

Price (incl. tax)

¥6,600,000 per unit

Release Date

Autumn 2026

*Specifications and prices are subject to change.

About JBL

Founded with the mission of creating home speakers that combine beautiful design with professional sound quality, JBL has become the world’s largest audio manufacturer, trusted and beloved by both professionals and consumers in music-related environments worldwide.

JBL offers a wide range of products, from high-end home speakers and headphones to home theater systems. It also supplies OEM automotive audio systems for brands like Toyota, and professional equipment for cinemas, stadiums, concert halls, broadcast stations, and recording studios around the globe. JBL sound systems are widely adopted in sports arenas and major international sporting events.

About Harman International (U.S. Headquarters / Harman International Industries, Incorporated)

Harman International designs, manufactures, and markets premium audio, visual, and connected car solutions, integrating them for automotive, consumer, and professional markets. Its leading brands—including AKG®, ARCAM, Harman Kardon®, Infinity®, JBL®, Lexicon®, Mark Levinson®, and Revel®—are widely used and acclaimed by audiophiles, artists, and at events and concert venues. Today, over 50 million vehicles equipped with Harman’s audio and infotainment systems are on the road worldwide, and its software services enable secure connectivity and integration across billions of mobile devices and systems in offices, homes, vehicles, and mobile platforms. Harman International employs approximately 30,000 people worldwide.

Customer Inquiries

Harman International Inc.

https://support.jbl.com/jp/ja/contact.htm