Τα Marten Coltrane Quintet ειναι ζευγος ηχειων 4 δρομων. Τα woofers (2x 10") ειναι κατασκευασμενα αλουμινιο, το midwoofer (1x 7") απο ανθρακονηματα, το midrange (1x 3") απο βιρυλλιο και το tweeter (1x 1") ειναι διαμαντενιου θολου. Εσωτερικη καλωδιωση Jorma.

Εγγυηση Αντιπροσωπειας. Δυνατοτητα ανταλλαγων, δοσεων.

The Marten Coltrane Quintet is a four-way bass-reflex loudspeaker using a 1-inch pure-diamond tweeter, a 3-inch pure-beryllium high-midrange driver, a 7-inch convex carbon-fibre mid-bass unit and two 10-inch aluminium-sandwich woofers. The operating bands are divided at 170Hz, 1kHz and 6kHz, covering a specified frequency range of 18Hz?60kHz within ±2dB.

Its first-order crossover is engineered for time and phase coherence and employs copper-foil air-core inductors, silver/copper oil-paper capacitors, silver/gold capacitors and custom resistors. Jorma internal wiring with separate positive and negative conductors connects the network to WBT Nextgen bi-wire terminals, while a Statement Edition upgrade substitutes Jorma Statement cabling and higher-grade crossover components.

The enclosure uses 20-30mm carbon-fibre laminate with an aluminium, fibreboard and solid-wood sandwich front baffle to increase rigidity and suppress structural resonance. Mirror-polished stainless-steel supports with Marten Isolators mechanically decouple the 115kg cabinet from the floor. Sensitivity is 89dB/2.83V, nominal impedance is 4Ω with a 3Ω minimum, and rated power handling is 350W.

Features

• 4-way bass reflex
• Custom pure diamond tweeter
• Custom pure beryllium high-midrange
• Custom convex carbon fibre mid-bass
• Signature first order crossover
• Jorma internal wiring
• Marten Isolators

Specifications

• Acoustic Design:
  • 4-way bass reflex loudspeaker
  • First-order crossover network
• Frequency Response: 18Hz – 60kHz, ±2dB
• Power Handling: 350W
• Sensitivity: 89dB, 2.83V / 1m
• Nominal Impedance: 4Ω, minimum 3.0Ω
• Crossover Frequencies:
  • 170Hz
  • 1kHz
  • 6kHz
• Speaker Terminals: WBT Nextgen bi-wire binding posts
• Internal Wiring:
  • Jorma internal wiring
  • Optional Jorma Statement upgrade
• Cabinet:
  • 20–30mm carbon-fibre laminate construction
  • High-gloss piano lacquer finish
  • Front baffle with aluminium, fibreboard and solid wood sandwich construction
• Stand:
  • Mirror-polished stainless steel
  • Marten Isolators included
• Dimensions:
  • Speaker: 412 x 1205 x 740 mm, W x H x D
  • With stands and isolators: 525 x 1279 x 788 mm, W x H x D
• Weight: 115 kg