Pair of floorstanding loudspeakers
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Pair of floorstanding loudspeakers
*Spendor LPZ (Linear Pressure Zone) tweeter*
The goal of every tweeter designer is to achieve linear acoustic output over a wide frequency range. In practice this is extremely difficult. Spendor’s approach to this age‐old challenge is radical, and it works. The Spendor LPZ tweeter is built around a stainless steel front plate which forms a damped acoustic chamber directly in front of a lightweight woven polyamide diaphragm. The front plate incorporates a phase correcting micro foil to equalise sound wave path lengths across the diaphragm surface, simultaneously it generates a symmetrical pressure environment on both faces of the tweeter diaphragm so the tweeter operates in a balanced linear mode. The front plate also provides excellent mechanical protection for the delicate tweeter dome and a smart modern appearance. Imagine focusing an ultra‐high quality camera lens until you see a clear bright image. That’s the effect of Spendor LPZ technology. Our sequential geometry micro‐foil operates like an acoustic lens. The result is perfect focus, uninhibited sound transmission and a very wide listening window. Sound images are vivid, in‐the‐air, as bright or sweet as any music demands.
*Spendor 18cm drive units developed for D9*
The D9 mid‐bass drive unit has an advanced EP77 polymer cone mid‐range drive unit. Housed in an isolated enclosure at the top of the cabinet, it handles only mid‐range frequencies which eliminates mid‐low frequency inter-modulation. It delivers music with superb clarity and vanishingly low colouration. The two D9 low frequency drivers have ultra‐rigid, two part bonded, lightweight Kevlar composite cone assemblies. The drivers are in a large dedicated low‐frequency acoustic enclosure. Like Spendor’s highly regarded A9 loudspeaker (now superseded by D9) the D9 delivers accurate powerful bass without distortion or compression. All three drivers feature cast magnesium alloy chassis, high efficiency motor systems, optimised electro‐dynamic damping, and excellent thermal dissipation for wide dynamic range. New polymer surrounds with very stable molecular composition reduce driver ‘break‐in’ time significantly.
*5G (Fifth generation) Spendor Linear flow port*
When extended low frequency sound reproduction is the goal there is simply no substitute for volume. In the D9 low frequencies are handled by two specially designed bass drivers in a substantial volume enclosure. For optimum low frequency response and power handling the enclosure is ported, but not like a conventional loudspeaker. The D9 incorporates our latest 5G Spendor Linear flow port technology. Inspired by Formula 1 diffuser technology, it offers significant advantages over any conventional port or transmission line loading. An aerodynamically profiled central baffle, like an aircraft wing, creates a tapered twin‐venturi port. Air at the port extremities is smoothly decelerated and there is a further reduction in air velocity in the large tapered area at the cabinet base. The result is evenly balanced acoustic pressure and air‐flow along the whole length of the port. Rapidly decreasing air velocity at the port extremities creates an air‐curtain effect to eliminate port noise and spurious mid‐band radiation. A carefully optimised combination of bass driver electrical and mechanical parameters, enclosure volume, air flow and wide‐band (very low‐Q, very low phase shift) port tuning allows the D9 to deliver deep, fast, articulate bass in a way no conventional loudspeaker can challenge.
*Unconstrained internal airflow*
Conventional loudspeakers incorporate foam or fibre to provide low frequency acoustic damping. The damping material stores energy. As stored energy is released it is no longer in‐time with the music and it creates an unnaturally, heavy , slow sound. Inside the D9, the sound path, from the bass drivers to the listening room is unrestricted, there is no low frequency damping. As a result the Spendor D9 is entirely free from damping material energy storage effects, the advantage is clearly audible, music sounds naturally fast, agile and coherent.
*Spendor dynamic cabinet damping*
Timing is fundamental to the musical experience. In conventional loudspeakers rigid high density cabinet panels are mass‐damped to reduce cabinet‐talk. Spurious energy is stored and released slowly. This introduces unacceptable blurring and slowing of the sound. Spendor’s solution is asymmetric aperture bracing of the cabinet to disperse internal waves. Dynamic Damping with small low mass constrained polymer dampers at key energy interface points instantly convert any spurious energy in the cabinet structure into inaudible heat. The result is a silent rigid cabinet and a naturally fast clear sound.
The base of the cabinet has four leveling feet attached via forged steel inserts to hold the cabinet rock steady. The elimination of micro‐vibration allows fine musical detail to be reproduced with delicate precision.
A meticulously refined crossover network with precision wound inductors and high‐linearity plastic film capacitors integrates the drivers seamlessly in a minimum phase alignment. Each crossover component and every complete pair of Spendor loudspeakers is calibrated and matched to stringent broadcast reference standards..
90dB efficiency and an easy to drive 8 ohm load ensure complete compatibility with a wide range of amplifiers and cables. With substantial power handling the D9’s can play very loud without sounding compressed. At low replay levels the sound is always clear and balanced.
*Elegant modern design*
The Spendor D9 looks as good as it sounds. Our premium finishes perfectly complement today’s on trend interiors. Spendor Dark, a diamond polished gloss lacquer over a dark natural veneer, for an alluring modern look. Satin white, a silky pure white lacquer, for a distinctive contemporary look. Dark ebony for a deep luxurious look, and natural rosewood for a timeless exotic look.
Standard finishes are light oak, dark walnut, cherry and black ash.
Description: 3-way floorstanding
Drive units: 1 x MF & 2 x LF 180mm, HF 22mm
Dimensions:(H x W x D) 1155 x 210 x 398mm
Response: 27Hz - 25kHz
Impedance: 8 Ohms
Crossover: 500Hz, 4.2kHz