Coltrane has always been a standard of excellence for us and is a benchmark for the Marten sound. Coltrane Quintet continues this legacy, delivering high resolution, crystal-clear sound with a vivid soundstage that is life-like and natural. The new Coltrane marks a substantial progression in terms of bass response, dynamics and resonance reduction.
WHAT YOU GET
Coltrane Control
Featuring our signature first-order crossover and custom drivers—pure diamond tweeter, beryllium high-midrange, and new carbon fibre mid-bass—alongside aluminium sandwich bass drivers in a bass reflex design. With a cabinet 25% larger than the Coltrane 3, it delivers deeper bass. The carbon fibre cabinet offers superior resonance control, maintaining the sleek Coltrane profile with structural enhancements for stability. Available in polished carbon fibre laminate or lacquered Piano Black finish.
4-way bass reflex
Custom pure diamond tweeter
Custom pure beryllium high-midrange
Custom convex carbon fibre mid-bass
Signature first order crossover
Jorma internal wiring
Marten Isolators
“It feels like a challenge to update Coltrane, but I can happily say that the new model has exceeded all expectations. You should hear how low the bass frequencies go.”
 
6000-60000 HZ
Custom diamond tweeter
Coltrane Quintet’s pure diamond tweeter offers the best in sound reproduction, leveraging diamond’s unique properties for unrivalled clarity and precision.
With its exceptional stiffness-to-weight ratio, pure diamond ensures instantaneous response without distortion, revealing intricate details with accuracy. Additionally, diamond’s thermal conductivity guarantees stable performance even under intense listening conditions, preserving the tweeter’s integrity and longevity.
Integrating this tweeter into Coltrane Quintet offers an immersive, lifelike listening experience that sets an enviable standard in high-end audio reproduction.
1000-6000 HZ
Custom beryllium high midrange
Our pure beryllium high-midrange driver epitomises our pursuit of sonic perfection. Tailored with precision, it harnesses beryllium’s exceptional properties for performance. Its stiffness, lightness, and damping ensure accurate reproduction of vocals and instruments with precision.
The driver’s fast transient response captures every nuance of the original recording, while its seamless integration with our signature first-order crossover ensures coherence across frequencies. In Coltrane Quintet, this driver delivers unmatched clarity, detail, and musicality: bringing music to life.
Find out more
170-1000 HZ
Custom convex carbon fibre mid-bass
The convex carbon fibre mid-bass driver offers a host of benefits to offer Coltrane Quintet. Its convex shape enhances rigidity while minimising weight, allowing for greater piston-like motion and improved transient response. This translates into tighter, more articulate bass reproduction with remarkable speed and accuracy, ensuring every note is delivered with precision and impact.
Furthermore, the use of carbon fibre provides exceptional damping properties, reducing unwanted resonance and distortion for a cleaner, more transparent sound. This means you can enjoy controlled, powerful bass without any muddiness, even at high volumes.
18-170 HZ
Aluminium sandwich bass
Coltrane Quintet features 2 x 10” aluminium sandwich drivers meticulously engineered for exemplary bass performance. These drivers excel in delivering deep, powerful bass with exceptional clarity and precision. The aluminium sandwich construction ensures optimal stiffness and damping, minimising distortion and resonance for a tight, articulate bass response.
These drivers ensure every note in the lower ranges are reproduced with stunning detail and impact, allowing you to really feel the music. 
CABINET
Show of strength
Polished carbon fibre
Piano Black
Using carbon fibre for Coltrane Quintet’s cabinets is an easy choice, due to its superior technological advantages and profound impact on sound quality. Its rigidity and low resonance minimise cabinet vibrations, ensuring the drivers operate with maximum accuracy. This results in transparent and natural sound reproduction, capturing every detail of the music.
Available in polished carbon fibre for those that want to reveal the strength of the material.
INTERNAL WIRING
Premium cables for pure sound.
We take every detail seriously to ensure the best possible listening experience. That’s why we use Jorma internal wiring, which are handmade in Sweden to the highest standards of quality and performance. Using separate + and – conductors, Jorma cables offer enhanced shielding and the highest quality copper, resulting in a natural, transparent sound that perfectly complements our speaker design. Jorma delivers exactly what we need to achieve the best possible sound.
FEET
Free your music
Reducing resonance is crucial to the design of our speakers as it can significantly impact the sound quality. That’s why we developed Marten Isolators with IsoAcoustics technology. These precision isolators separate the cabinet from the floor, reducing resonance and distortion—freeing the soundstage.
Dynamic bass with power and control
Natural openness and clarity
Optimised for cabinet weight
Resists lateral movement and oscillations 
Reduces internal reflections
Suitable for carpet (with discs)
CROSSOVER
First class as always.
The first order crossover has always been an integral component of the Coltrane sound. The crossover for Coltrane Quintet offers sound which is open, clean and dynamic, making it exceptionally powerful in the bass frequencies. This type of crossover makes it possible to have perfect time and phase coherence; and flawless time coincidence. This means that all registers are generated at the exact same moment, as it was recorded.
We use only the finest components for our crossovers:
Copper foil air core coils
Silver/Copper in oil/paper capacitors
Silver/Gold capacitors
Custom-made resistors
Jorma internal wiring
UPGRADE
Statement Edition.
Coltrane Quintet can be upgraded to Statement Edition, featuring Jorma Statement internal cables and the highest quality crossover components.