CES 2013: Marten’s new Coltrane

Marten makes some monster loudspeakers, this is known. The newest offering in their top-of-their-line Coltrane lineup is the Coltrane Tenor, and like the rest of the loudspeakers in this line, it is replete with — one might say festooned with — drivers from Accuton. A diamond driver tops the cabinet, a top-drawer Accuton mid-range, and two brand-new aluminum-sandwich convex drivers (they’re outies, and yes, they stick out, not in) down low. A carbon-fiber/wood cabinet with traditional Marten fascia rounds out the package.


  • Frequency range / 24-100000 Hz +-2dB
  • Power rating / 300 W
  • Sensitivity / 86 dB / 1 m / 2.83V
  • Impedance / 6 ohm (3.8 Ohm min)
  • Type / 3-way bass reflex
  • Drive units / 2×8” alumimium sandwich, 1×7” ceramic, 1×0.75” diamond
  • Crossover frequency / 2nd order, 350 & 3000Hz
  • Terminals / WBT bi-wiring
  • Internal wiring / Jorma Design
  • Cabinet / 20 mm:s carbon fibre laminate cabinet, 60 mm laminated wood front
  • Stands / Brushed stainless steel with Black Diamond Racing pucks and cones
  • Dimensions WxHxD / 12.2 x 44.1 x 15.7”
  • Net weight / 86.6 lbs

Shown here with electronics from Nagra, the sound wasn’t … exactly … top drawer and I couldn’t help but think that these loudspeakers were being held back. Maybe. Either that, or the drivers weren’t broken in, which seems likely as the bass response wasn’t overpowering the room — and it probably should have, if that makes sense. Whatever the issue, those new bass drivers are odd-looking, like someone took an Accuton driver, with grill still on it, and laminated over top of the grill. Like I said. It’s weird. Very pretty, though.


  1. Art, I haven’t had the opportunity to try out any of April Music gear but we just got in the new Django L speakers (we are an authorized dealer) powered by T+A Music Receiver and all I can say is WOW. Like the Coltrane2 the Django uses a ceramic tweeter from Accuton however the bass units are from Norwegian SEAS. The Django throws a large sound and we are blown away by the synergy.

  2. Did you manage to hear the Coltrane2 with the April Music Class “D” amps, JV was raving about them .

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