Marten Coltrane Quintet
The Marten Coltrane Quintet is a 4-way bass reflex floorstanding loudspeaker representing the entry point into Marten's flagship Coltrane series. Introduced in 2024 as the successor to the Coltrane 3, the Quintet features a carbon fiber cabinet 25% larger than its predecessor, custom diamond and beryllium drivers, and a new convex carbon fiber mid-bass driver. Handcrafted in Sweden, this loudspeaker delivers high-resolution, full-range performance with bass extension to 18Hz.
Position in the Marten Lineup
The Coltrane series represents the pinnacle of Marten's loudspeaker technology, named after jazz legend John Coltrane. The Quintet sits below the larger Coltrane Momento 2 and the flagship Coltrane Supreme 2 within this elite range. While positioned as the entry point to the Coltrane family, the Quintet incorporates much of the technology developed for the flagship models, including carbon fiber cabinet construction, diamond and beryllium drivers, and the first-order crossover topology that defines the Coltrane sound.
Driver Configuration
The Coltrane Quintet employs six drivers (five active plus cabinet design elements) in a 4-way configuration:
A custom pure diamond tweeter handles frequencies above 6,000Hz, leveraging diamond's exceptional stiffness-to-weight ratio for instantaneous response without distortion. Diamond's thermal conductivity ensures stable performance under demanding conditions.
A custom pure beryllium high-midrange driver covers 1,000Hz to 6,000Hz. Beryllium's combination of stiffness, low mass, and natural damping provides exceptional clarity through the critical presence and vocal regions.
A new convex carbon fiber mid-bass driver handles 170Hz to 1,000Hz. The convex shape enhances rigidity while minimizing weight, enabling piston-like motion with improved transient response. Carbon fiber's damping properties reduce resonance and distortion.
Two 10-inch aluminum sandwich honeycomb woofers extend bass response below 170Hz. The aluminum sandwich construction ensures optimal stiffness and damping for tight, articulate bass reproduction.
First-Order Crossover
The Coltrane Quintet employs Marten's signature first-order crossover, integral to the Coltrane sound since the series inception. This topology provides perfect time and phase coherence, ensuring all frequencies are generated at the exact same moment as originally recorded. The crossover uses the finest components to maintain signal purity and dynamic capability.
Carbon Fiber Cabinet
The cabinet is constructed from 20-30mm carbon fiber laminate, chosen for its superior rigidity and low resonance. The front baffle uses a sandwich construction incorporating aluminum, fibreboard, and solid wood for maximum stability. At 25% larger than the Coltrane 3, the Quintet's increased internal volume supports bass extension to 18Hz.
Available in polished carbon fiber laminate or Piano Black lacquer finish, the cabinet sits on enlarged mirror-polished stainless steel stands fitted with Marten Isolators developed with IsoAcoustics.
Standard vs. Statement Edition
The Coltrane Quintet is available in two configurations: Standard and Statement Edition.
Standard Edition
The Standard edition features premium crossover components and Jorma Design internal wiring, delivering the full Coltrane Quintet performance with exceptional resolution and dynamic capability.
Statement Edition
The Statement Edition upgrades to Jorma Statement internal cables and the highest quality crossover components. This configuration represents the ultimate expression of the Coltrane Quintet design, maximizing resolution, transparency, and refinement.
Performance Characteristics
With 91dB sensitivity and moderate impedance characteristics, the Coltrane Quintet works well with high-quality amplification. The frequency response of 18Hz to 100kHz (±2dB) provides exceptional bandwidth, with bass extension that eliminates any need for subwoofer augmentation. At approximately 116kg (255 lbs) per speaker, the Quintet commands presence in the listening room while the enlarged stands and isolators ensure stability.
Summary
The Marten Coltrane Quintet delivers flagship Coltrane series technology in a package that, while substantial, remains practical for dedicated listening rooms. The combination of diamond tweeter, beryllium high-midrange, carbon fiber mid-bass, and aluminum sandwich woofers in a carbon fiber cabinet represents state-of-the-art loudspeaker engineering. The Statement Edition upgrade offers ultimate refinement for the most demanding applications. The Marten Coltrane Quintet establishes new standards for high-resolution, full-range loudspeaker performance.
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