Marten Coltrane 3 loudspeaker Specifications

Sidebar 1: Specifications

Description: Three-way, reflex-loaded, floorstanding loudspeaker. Drive-units (all made with Accuton's Cell Concept technology): 1" diamond-dome tweeter, 7" ceramic-dome midrange, two 10" long-throw aluminum-sandwich-dome woofers. Crossover frequencies: 320Hz, 3.8kHz. Frequency response: 20Hz–60kHz, ±2dB. Sensitivity: 88dB/m/2.83V. Impedance: 6 ohms nominal, 3.7 ohms minimum. Power rating: 350W. Included: Stainless-steel stands with Black Diamond Racing Cones and pucks.
Dimensions: 47.6" (1220mm) H by 15.4" (395mm) W by 25" (640mm) D. Weight: 209 lbs (95kg).
Finishes: Side panels: high-gloss carbon fiber. Front baffles available in Matte Walnut or one of three Metallic finishes: Taupe, Black, Khaki.
Serial numbers of units reviewed: G1509290LL/R.
Price: $100,000/pair. Approximate number of dealers: 8. Warranty: 3 years.
Manufacturer: Marten, Djurgårdsgatan 10, 414 62 Gothenburg, Sweden. Tel: (46) (0)31-20-72-00. Fax: (46) (0)31-20-72-70. Web: US distributor: Sound Advice, 1087 E. Ridgewood Street, Long Beach, CA 90807. Tel: (562) 422-4747. Web:

US distributor: Sound Advice
1087 E. Ridgewood Street
Long Beach, CA 90807
(562) 422-4747

eriks's picture

Time for some bass traps Michael, and judicious application of DSP! I have a small listening room and have enough bass to pulverize kidney stones when asked for it. :) Those in room graphs are crying for TLC.