Onkyo D-N7X Bookshelf Speakers for Sale. 2-way bass-reflex design with OMF (Onkyo Micro Fiber) diaphragms and Aero Acoustic Drive technology for a great sound. Used, but in good condition. Below is info from the manufacture...
The Onkyo D-N7X bookshelf speakers are designed to achieve a rich bass reproduction spread, with the help of the newly developed A-OMF monocoque cone woofer. A "Monocoque" diaphragm covers the entire driver from the center cap over the entire driver. In fact, Monocoque is actually three layers, including an outer polyethylene naphthalate (PEN) layer, an inner Aramid layer (used in bulletproof vests), and a flexible cotton weave layer between the two. With one continuous surface, the driver's piston motion is more efficient and precise.
The ring-drive tweeter was designed with an "aluminum equalizer" to achieve a high-frequency reproduction with a gloss, such as vocal depth, equipped with a ring-shaped diaphragm which aimed to ensure accurate driving ability in the expansion of the piston motion. By placing the driving point of the voice coil to the mid-point of the inner peripheral portion and the outer peripheral portion of the diaphragm to adopt a "balanced drive structure", playback of up to 100kHz Oiyari unnecessary division vibration in the high frequency (piston motion area is 20kHz expansion to near) was achieved.
The bass-reflex cabinetry has a ported bass duct at the base. Completely separated from the main cabinet to reduce vibrations, this long narrow duct is what Onkyo refers to as "Aero Acoustic Drive" - very different than a conventional circular port. Onkyo believes that this design aids in separating low and high frequency sounds.
* Type: 2-way bass-reflex type
* Rated impedance: 4Ω
* Maximum input: 70W
* Rated frequency range: 50Hz ~ 100kHz
* Rated sensitivity level: 83dB / W / m
* Crossover Frequency: 6kHz
* Cabinet volume: 8.1 l
* Dimensions: width 167 × height 290 × depth 246mm
* Mass: 3.9kg
* Woofer: 13cm A-OMF Monocoque Cone
* Tweeter: 3cm Ring-drive Dome
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