Marten Coltrane Momento 2 uses the bespoke crossover technique developed for Coltrane Supreme 2. The first order crossover makes for absolutely perfect time and phase coherence; and flawless time coincidence. The diamond drivers deliver crystal clear sound; combined with Marten signature crossover your music sounds as close to reality as we could engineer. Detailed, controlled and vibrant.

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

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

Technical Specifications

Speaker (front): 1 x 0.75″ Diamond, 1 x 2″ Diamond, 1 x 7″Ceramic, 6 x 8″ Aluminium sandwich

Speaker (back): 4 x 10″ passive Aluminium sandwich

All components contain: Crossover components with silver-gold capacitors, Copper foil paper in oil capacitors, Copper foil inductors

Frequency range: 20-100000 Hz +-2dB

Power rating: 450 W

Sensitivity: 90 dB / 1 m / 2.83V

Impedance: 6 ohm (3.7 Ohm min)

Type: 4-way passive radiators

Crossover frequency: First order: 350, 3500 & 8000 Hz

Terminals: WBT Nextgen bi-wiring

Internal wiring: Jorma Design (optional Statement)

Cabinet: 25mm:s carbon fibre laminate sides, 70mm solid laminated wood front, back, top and bottom

Stands: Polished stainless steel with Marten Isolators

Dimensions W x H x D, 54 x 182 x 59 cm, (21.3 x 71.7 x 23.2″)

Net weight: 210 Kg (467 lbs)