Marten Dexter Trio

Regular price: $47,000.00 USD
Regular price
Sale price: $47,000.00 USD

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Color: Piano Walnut

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Description

The Marten Dexter Trio is a 2.5-way floorstander in Marten's Dexter series, pairing a pure diamond tweeter with two 7.5-inch ceramic mid/bass drivers in an M-Core triple-layer cabinet. The Loaded Reflex Line manages bass through a shaped internal channel with a downward-firing slotted port, extending frequency response to 21Hz at ±2dB. Jorma Duality wiring is standard; Statement Edition adds Jorma Statement wiring and upgraded crossover components. Handbuilt in Mölndal, Sweden.

Specifications

Type: 2.5-way floorstanding loudspeaker
Configuration: Standard Edition and Statement Edition
Tweeter: 1" Marten pure diamond
Mid/Bass Drivers: 7.5" Marten ceramic x 2
Crossover: Multi-diverse order, 2,000 Hz
Frequency Response: 21Hz to 45,000 Hz ±2dB
Sensitivity: 91dB / 2.83V
Impedance: 6 ohms nominal (3.6 ohms minimum)
Power Rating: 300W
Terminals: Single-wiring; pure copper, rhodium-plated
Internal Wiring (Standard): Jorma Duality
Internal Wiring (Statement Edition): Jorma Statement
Crossover Components (Statement Edition): Highest quality components
Faceplate: Machined carbon fibre laminate
Cabinet: M-Core triple-layer construction
Bass Loading: Loaded Reflex Line; shaped internal channel with downward-firing wide slotted port
Dimensions (W x H x D): 23–29.6 x 100 x 38 cm / 9–11.6 x 39.4 x 15"
Weight: 45 kg per speaker
Stand: Mirror polished stainless steel with Marten Isolators (included)
Finishes: True Grain Oak, Matte Walnut, Piano Walnut, Piano Black
Country of Manufacture: Sweden (handbuilt in Mölndal)

More information View images

Marten Dexter Trio

The Marten Dexter Trio is a 2.5-way floorstanding loudspeaker and the step-up model from the Dexter Duo in Marten's Dexter series. Where the Duo is a 2-way stand-mount built around a single ceramic mid/bass driver, the Trio uses two 7.5-inch ceramic mid/bass drivers in a floorstanding M-Core cabinet, extending the frequency response to 21Hz and increasing sensitivity to 91dB. The same diamond tweeter, the same bass loading approach, and the same cabinet construction standard apply across both models. The Dexter Trio is available in Standard and Statement Edition configurations, in four finishes, and is handbuilt in Mölndal, Sweden.

The Dexter Series

The Dexter series comprises four models: Dexter Duo, Dexter Trio, Dexter Quartet, and Dexter Quintet. All four share a common platform: a pure diamond tweeter derived from Marten's Coltrane Supreme Extreme project, triple-layer M-Core cabinet construction, a carbon fibre laminate faceplate, Jorma Duality internal wiring, and the Loaded Reflex Line bass loading system developed specifically for this range. The Dexter Trio and Dexter Duo are 2-way and 2.5-way designs using ceramic mid/bass drivers; the Dexter Quartet and Dexter Quintet are 3-way floorstanders that add a separate ceramic midrange and carbon fibre bass drivers.

Cabinet and Faceplate

The cabinet is M-Core triple-layer construction. The faceplate is a machined carbon fibre laminate shared with Marten's flagship models, providing rigidity and near-zero resonance as a structural base for the tweeter. Marten Isolators, developed with IsoAcoustics, decouple the cabinet from the floor to reduce resonance transfer.

Standard and Statement Edition

The Dexter Trio is available in two configurations. The Standard Edition uses Jorma Duality internal wiring throughout. The Statement Edition uses Jorma Statement internal wiring and highest-quality crossover components. Both versions share the same drivers, cabinet, bass loading, and overall design.

Finishes

The Dexter Trio is available in four finishes: True Grain Oak, Matte Walnut, Piano Walnut, and Piano Black. True Grain Oak is exclusive to the Dexter series. A dedicated stand in mirror polished stainless steel with Marten Isolators is included.

01
Diamond Tweeter
The 1-inch pure diamond tweeter in the Dexter Duo is derived from development work done on Marten's Coltrane Supreme Extreme project. Its diaphragm moves in pure piston motion beyond the limits of hearing, producing transient response that reflects what is recorded rather than approximating it. This tweeter is shared across all four Dexter models.
02
Ceramic Mid/Bass Driver
The Dexter Duo uses a 7.5-inch Marten ceramic mid/bass driver, the same unit used in the Dexter Trio. The ceramic diaphragm combines the stiffness needed for accuracy with the low mass needed for speed, handling the full range from the lower midrange downward.
03
Loaded Reflex Line
The Loaded Reflex Line is a new bass loading system developed specifically for the Dexter series. It combines bass reflex and transmission line principles through a shaped internal channel and a wide downward-firing slotted port. The result is reduced air velocity, extended bass depth, and greater flexibility in room placement compared to conventional ported designs. Each Dexter model's bass loading is tuned independently to its driver configuration.
04
Jorma Duality Wiring
Jorma Duality, handmade in Sweden. Ultra-pure copper conductors forming a direct signal path from crossover to driver. Standard across every model in the series. Internal wiring is upgraded to Jorma Statement in the Dexter Statement models.

How can I book a private listening appointment?

Call or text us at (360) 360-3610, email hello@unveilsound.com, or use our website's contact form. Every appointment begins with a consultation about your current system, room, musical preferences and goals. We then schedule your visit and prepare the space for you.

What equipment can I audition at your studio?

You can audition a selection of reference components from the brands we carry. During your consultation, tell us what you would like to hear and we will confirm availability and create the experience for your visit.

Do you accept trade-ins?

Yes. However, we consider trade-ins case by case, based on the equipment, its condition, and current market demand. Contact us and we will let you know whether we can accept your equipment.

How does the free one-year Trade-Up credit work?

Our Trade-Up Program gives you full store credit for the toward a higher-tier item, for up to one year after your purchase. Some exceptions apply. Items that do not qualify may still be considered as a regular trade-in. For complete terms, please review our Trade-Up Program details.

Can I purchase from Unveil Sound if I live outside the Pacific Northwest?

Yes, we serve clients throughout the United States. Availability of some brands can vary by region, which we discuss during your consultation.

Do you offer delivery, installation, and system setup?

Yes, we can deliver, install, and set up your system anywhere in the United States. For reference-level components, this is included at no additional cost.

View all frequently asked questions

Marten Dexter Trio

Marten Dexter Trio

The Dexter Series

Cabinet and Faceplate

Standard and Statement Edition

Finishes

Explore Marten Engineering

Diamond Tweeter

Ceramic Mid/Bass Driver

Loaded Reflex Line

Jorma Duality Wiring

A few things you may be wondering