Statement Edition available as optional upgrade for $11,000: Jorma Statement internal wiring and with the highest quality crossover components.
Dexter Quintet
Nothing between the listener and the music.
Technology earned, not borrowed.
Three drivers, resolved as one design.
The tweeter is diamond. Not as an option. Not as an upgrade. It was the starting point for every design decision that followed.
The engineering is present in every detail.
You simply cannot hear it.
The hardest diaphragm material available, with a stiffness-to-mass ratio no other material matches. Pistonic motion beyond the audible range — vanishingly low distortion, transient response that reflects what is recorded rather than approximating it.
A 3.5" ceramic midrange, designed by Marten, sits at the heart of Dexter Quintet. High stiffness and low mass keep it pistonic across its full operating range — the transparency and control it delivers define the tonal character of the design.
Two 9.5" carbon fibre cone drivers handle the low frequencies in Dexter Quintet. High stiffness and low mass — the combination that keeps the cone pistonic at the frequencies that define bass dynamics and control.
A custom crossover developed specifically for Dexter. Each order and transition point is resolved individually — not as a compromise between constraints, but as a deliberate choice for the drivers it serves.
The Loaded Reflex Line manages bass through a shaped internal channel that exits through a wide downward-firing slot — a principle shared with Coltrane Quintet. Reduced air velocity. Deeper, more controlled output. Greater freedom in placement.
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.
The speaker disappears.
The music does not.
Four finishes,
hand-applied.
Four finishes, each expressing the same design in a different material. True Grain Oak — new to Marten and exclusive to the Dexter series — retains the natural texture of the wood, tactile in a way that is particular to this finish. The matte veneers are hand-sanded and sealed. The piano finishes are built up through multiple lacquer layers and polished to depth.
Technical specifications
| Configuration | 3-way |
| Tweeter | 1" Marten pure diamond |
| Midrange | 3.5" Marten ceramic |
| Bass | 9.5" Marten carbon fibre × 2 |
| Crossover | Multi-diverse order, 500 and 4,000 Hz |
| Frequency response | 21–45,000 Hz ±2dB |
| Sensitivity | 89dB / 2.83V |
| Impedance | 6 ohms (3.8 ohms min) |
| Power rating | 300W |
| Terminals | Single-wiring, pure copper rhodium-plated |
| Internal wiring | Jorma Duality |
| Cabinet | M-Core triple-layer |
| Dimensions W × H × D | 30–38.6 × 105 × 49 cm 11.8–15.2 × 41.3 × 19.3" |
| Weight | 80 kg |
| Stands | Mirror polished stainless steel with Marten Isolators |
| Finishes | True Grain Oak · Matte Walnut · Piano Walnut · Piano Black |
| Internal wiring | Jorma Statement |
| Crossover | Highest quality components |
Handbuilt in Mölndal, Sweden.