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Overview

Marten Dexter Quartet Loudspeakers

The Marten Dexter Quartet brings much of the technology and performance of the flagship Dexter Quintet into a more compact floorstanding design. Handbuilt in Mölndal, Sweden, the Dexter Quartet combines a Marten pure diamond tweeter, ceramic midrange, and 9.5-inch carbon-fiber bass driver in a sophisticated three-way loudspeaker.

Designed for rooms where the larger Quintet may simply be more speaker than the space requires, the Quartet retains the essential character of the Dexter series with exceptional resolution, transparency, dynamics, and controlled bass performance.

Marten-Designed Drivers

At the top is a 1-inch pure diamond tweeter, delivering exceptional transient response and extremely low distortion.

A 3.5-inch ceramic midrange handles the critical vocal and instrumental frequencies, while a 9.5-inch carbon-fiber woofer delivers fast, controlled low-frequency performance.

Marten's Loaded Reflex Line bass system uses a shaped internal channel terminating in a wide downward-firing slot, helping produce deeper, more controlled bass while providing greater flexibility with room placement.

Built Like a Marten

The Dexter Quartet features Marten's M-Core triple-layer cabinet construction, engineered to minimize unwanted cabinet resonance, with a carbon-fiber laminate surrounding the tweeter.

Internal signal wiring is Jorma Duality, handmade in Sweden, while mirror-polished stainless-steel supports incorporate Marten Isolators developed with IsoAcoustics to reduce resonance transfer between the speaker and floor.

An optional Statement Edition upgrades the internal wiring to Jorma Statement and incorporates higher-grade crossover components.

Specifications

  • Configuration: 3-way
  • Tweeter: 1" Marten pure diamond
  • Midrange: 3.5" Marten ceramic
  • Bass Driver: 9.5" Marten carbon fiber
  • Crossover: Multi-diverse order at 500 Hz and 4,000 Hz
  • Frequency Response: 22 Hz–45,000 Hz ±2 dB
  • Sensitivity: 89 dB / 2.83V
  • Impedance: 6 ohms, 3.8 ohms minimum
  • Power Rating: 300 watts
  • Terminals: Single-wire, pure copper, rhodium-plated
  • Internal Wiring: Jorma Duality
  • Cabinet: M-Core triple-layer
  • Dimensions: 11.0–13.5" W × 41.3" H × 14.2" D
  • Weight: 60 kg
  • Stands: Mirror-polished stainless steel with Marten Isolators
  • Finishes: True Grain Oak, Matte Walnut, Piano Walnut, Piano Black
  • Optional Upgrade: Statement Edition with Jorma Statement wiring and upgraded crossover components
  • Manufactured: Handbuilt in Mölndal, Sweden

Experience Marten at The Grid HiFi

Marten loudspeakers are highly revealing, and choosing the right model, amplification, placement, and system setup is essential to getting everything they're capable of delivering.

The Grid HiFi is your Marten expert in Houston, with the experience to help you select and properly integrate the Dexter Quartet into a complete high-performance audio system.

Visit The Grid HiFi to experience Marten, or contact us for Dexter Quartet pricing, availability, finish options, Statement Edition upgrades, and complete system recommendations.

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FAQs

Please read our FAQs page to find out more.

Do you price match?

Yes. We match any authorised dealer, including big-box retailers. If you find the same product at a lower price, contact us and we'll match it.

Do you offer free shipping?

Yes — free shipping on every order, with 2-day delivery available on most products. Easy returns and exchanges are included.

Where is your showroom?

We're at 6362 Alder Drive, Houston, Texas. The showroom lets you hear and compare reference-level systems in person before making any decisions. If you're considering a larger purchase or installation, it's well worth the visit.

Can I buy online without visiting the showroom?

Yes. The full product range is available through the online store with free nationwide shipping. For more complex system builds, speaking with one of our advisers first tends to lead to a better result.

Do you offer financing?

Yes. Special financing is available through the BrandSource Credit Card for qualifying purchases, allowing you to spread payments over time with no annual fee. Promotional rebate savings are also available periodically. See the financing page for full details.

Do you install systems as well as sell equipment?

Yes — installation is central to what we do. We design and install whole-home audio and video, home theaters, media rooms, outdoor audio, lighting and motorised shades, and full smart home automation.

Do you provide support after installation?

Yes. We provide ongoing service and support to ensure systems continue performing as intended — not just on installation day, but over the long term.