What you get
Power and control in perfect balance.

Coltrane Tenor 2 uses the bespoke crossover technique developed for Supreme 2. The first order crossover makes for absolutely perfect time and phase coherence; and flawless time coincidence.

  • 3-way bass reflex
  • First order crossover
  • Accuton Cell drivers
  • Jorma Prime cables

“Designed around the most advanced technology, it’s crafted with absolute reverence for music.”

Leif Olofsson | Chief Designer, Marten
Diamond cones
Sound that sparkles.

Pure Diamond is the ultimate material for speaker membranes. Used in the high-frequency range, its stiffness-to-weight ratio and internal sound velocity are unsurpassed.

Diamond is also the best heat conductor known to man. This is essential for loudspeaker membranes, providing the best heatsink for the voice coil; resulting in high power handling and very low compression.

The sonic character of our Diamond tweeters is not what you might expect. Others can sound ‘overly brilliant’ or ‘hard-as-diamond’. Harmonic distortion can be a problem too. Our crossover has been carefully designed to deal with this. In fact, you get the opposite – the Diamonds simply disappear, leaving only your music.

Ceramic cones
Advanced technology for natural sound.

Hard ceramic is light, yet extremely rigid, making it one of the best materials for speaker membranes – it’s also known as Sapphire. 

Our ceramic cones have a high internal damping factor, because of a refined electrochemical process. The membrane also has a high material resonance frequency, meaning distortion is minimal; offering a level of clarity that is the holy grail for high end speaker cones.

Bass drivers
Low frequencies.
Low distortion.

The Cell bass driver units have long excursion, extremely low distortion levels and a hidden surround. Made of Aluminium sandwich honeycomb, the drivers offer rich, dynamic bass performance with a powerful presentation.

Stability you can rely on.

Years of research have shown that the best material for loudspeaker cabinets is Carbon Fibre laminate. We’ve tested many materials, but none offer such strength and rigidity. This makes the cabinet extremely inert and resonance-free across the whole frequency range. It also has a high internal damping factor despite its light weight.

We know that cabinet construction is just as important as the components you use inside, so Carbon Fibre is the ideal complement.

Cones and pucks
Aerospace engineering.

Good isolation is paramount to get the best performance from our loudspeakers. We use Black Diamond Racing (BDR) cones and pucks for their supreme resistance to vibration and resonance.

BDR uses military-grade Carbon Fibre with state-of-the-art compounds, to create a material that is rigid, with a high internal damping factor and resonance control that is second to none.

We never follow the path of least resistance.

Marten worked tirelessly to refine the crossover so it would work perfectly with Accuton Cell drivers. It wasn’t an easy task, but it was the clear solution.

The first order 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. Just like live music.

  • Copper foil air core coils
  • Silver/Copper in oil/paper capacitors
  • Silver/Gold capacitors
  • Custom-made resistors
  • Jorma internal cabling

“Close your eyes, immerse yourself in the soundstage and hear exactly where each musician is placed in the orchestra.”

Leif Olofsson | Chief Designer, Marten
Your space
Demanding speakers for demanding listeners.

Placing a Coltrane in your house is a commitment that really pays off. They require considered placement and set-up. Like the best things in life, you only get out what you put in. If you want to bring the live music experience to your home, there should be no compromise.

All models have high-gloss carbon fibre sides with fronts available in engineered solid wood.
Warm Grey
Dark Gold
Matte Walnut
Matte Cherry
Matt Maple
Matte Oak
Piano Black

Technical specifications

Speaker (front)

2 x 8 ” Aluminium sandwich

1 x 7 ” Ceramic

1 x 0.75 ” Diamond

Frequency range
24-80000 Hz +-2dB

Power rating
300 W

86 dB / 1 m / 2.83V

6 ohm (3.5 Ohm min)

3-way bass reflex

Crossover frequency
First order, 360 & 4000Hz

WBT Nextgen bi-wiring

Internal wiring
Jorma Design (optional Statement)

20 mm:s carbon fibre laminate cabinet,

68 mm laminated wood/aluminium front Polished stainless steel with Black Diamond Racing pucks and cones

Dimensions W x H x D
31 x 114 x 40 cm (12.2 x 44.9 x 15.7 ”)

Net weight
57 Kg (127 lbs)

Get the brochure.
more information
Let us guide you.
You might also like
ColtraneColtrane 3
All the power and control of Coltrane in a lounge-friendly speaker.
The first model designed to bridge the gap between Coltrane and Heritage.
Model features – updated content
Frequently Asked Questions