Marten DEXTER Series: 4 new speaker models with diamond tweeter

Swedish speaker manufacturer Marten introduced the DEXTER series in Japan. According to Phile Web's November 9, 2026 report, the series consists of three three-way models (Quintet, Quartet, Trio) and one shelf-type model (Duo). The report describes the series as a work developed by the brand's founder and chief designer. Development is noted to have taken more than 2 years.

Which features stand out?

All four models feature a 1-inch diameter Marten pure diamond tweeter. The report states that this tweeter was redesigned for the series based on technology from the brand's Coltrane Supreme Extreme model, together with a carbon fiber laminate front panel. The cabinet uses 25 mm thick sandwich-structured, three-layer M-Core. The bass system is the newly developed Loaded Reflex Line. The report notes that this system offers greater flexibility against placement conditions such as proximity to walls. Internal wiring features Jorma Design Jorma Duality. In the Statement Edition, this cable is replaced with Jorma Statement and different crossover components are used.

Technical specifications and prices

• Quintet: 3-way, 2 × 9.5-inch woofer; 21 Hz - 45 kHz (±2 dB), 91 dB, 105 cm height, 80 kg; 10,230,000 yen (Statement Edition 12,100,000 yen)
• Quartet: 3-way, 1 × 9.5-inch woofer; 21 Hz - 45 kHz (±2 dB), 89 dB, 105 cm height, 60 kg; 8,580,000 yen (Statement Edition 10,252,000 yen)
• Trio: 2.5-way, 2 × 7.5-inch midwoofer; 25 Hz - 45 kHz (±2 dB), 91 dB, 100 cm height, 45 kg; 6,578,000 yen (Statement Edition 8,063,000 yen)
• Duo: 2-way shelf-type, 7.5-inch midwoofer; 35 Hz - 45 kHz (±2 dB), 88 dB, 43 cm height, 18 kg; 4,180,000 yen (Statement Edition 5,258,000 yen)

All models have a nominal impedance of 6 ohms. Sensitivity is specified at 2.83 V. Prices are for pairs including tax and refer to the base price in True Grain Oak finish. Other finishes (Matte Walnut, Piano Black, Piano Walnut) carry surcharges; for example, for the Duo, Matte Walnut or Piano Black adds 352,000 yen while for the Quintet this amount is 880,000 yen. The optional stand for the Duo is quoted on request. For other options, please visit our speaker category.

Why is this important?

The report presents the technical construction and Japan pricing of an upper-segment series using diamond tweeters; it may serve as a reference point for those following the high-end speaker segment. The source contains no information on Turkish pricing or availability.