SPENDOR D9 LOUDSPEAKER
The new Spendor D9 is a development of our highly acclaimed D7, it is far more than a 'big' D7 . . .
The new Spendor D9 is an elegant, modern, full‐size, 3 way, 4 driver, floor‐standing loudspeaker. The D9 delivers music with exceptional resolution and a vibrant realism that conventional loudspeakers cannot match. It delivers low frequencies with breath‐taking power, scale and authority. It has a beautiful coherence and transparency across the entire sound spectrum. It is easy to place in a multiplicity of rooms, easy to drive, very efficient, plays any kind of music and, if you have the inclination, it will play very loud without compression. With its tall slim enclosure and smart modern finishes D9 is entirely at home in any modern living environment. It will do full justice to the finest ancillary equipment.
In the early 70's Spendor's legendary BC1 was the first commercial production loudspeaker with a plastic cone bass unit. Since those pioneering days Spendor's research into materials and acoustics technology has been the driving force behind every new generation of Spendor loudspeakers. Spendor's recent research into cabinet damping, advanced polymers, amplifier loudspeaker interface, low frequency airflow, and the perception of reproduced sound in real‐world living spaces is the foundation of the innovative new Spendor D‐line 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.
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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 intermodulation. 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.
Don't take our word for it ask you Spendor dealer for a demonstration.
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Photo shows D7 5G linear flow port, D9 is very similar
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.
High quality terminals are recessed within the port aperture to hide plug and cable connections for neat appearance.
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. Stabiliser Inserts The base of the cabinet has four levelling 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. Crossover network 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..
High efficiency 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. The plinth is finished in satin black lacquer.
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D9 loudspeaker Description 3 way floor standing loudspeaker Enclosure type Rigid, asymmetric braced, vented cabinet with dynamic damping Vent type Fifth generation Spendor linear flow, tapered twin‐venturi port Input connection Single pair recessed precision binding posts Typical in‐room response 27Hz ‐ 25kHz Power handling 250 watts unclipped programme Sensitivity 90dB for 1 watt at 1 metre Nominal impedance 8 ohms HF driver Spendor 22mm LPZ polyamide dome Mid driver Spendor 18cm EP77 polymer cone Bass driver 2 x Spendor 18cm Kevlar© composite cone Crossover frequencies 500Hz, 4.2kHz Net Weight 35kg Height 1125mm (excluding feet) Width Cabinet 210mm, plinth 222mm Depth Cabinet 385mm, plinth 409mm Finishes
Standard: cherry, light oak, black ash, dark walnut Plinth satin black Accessories Height adjustable spike feet, grille, non‐slip polymer feet