Technics SB-G90 - 3-Way bass reflex floorstanding loudspeakers - Grand Class speaker system (200 Watts max. input power / coaxial / high-gloss black / 1 pair)

Article number: 11007299
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    qualitative 3-Way floorstanding loudspeakers in noble high-gloss black
    beautiful design and excellent worksmanship
    200 Watts max. input power
    precise sound image
    optimum performances - strong power handling
    enormously capable and tremendously versatile
    these floorstanding loudspeakers are part of the legendary Technics Grand Class series
    we are specialized dealer for TECHNICS products - your authorized dealer in Leipzig

Product Description

Speaker System SB-G90
Unwanted vibration of the speaker units and enclosure has been thoroughly eliminated. The floor-standing speaker achieves clarity in sound imaging and fullness in spatial expression.

Point Sound Source Speaker System
One ideal in reproducing sound with full spatial expression is to ensure that the wave-fronts emitted from the speaker units are aligned at any listening position, i.e., providing a point sound source. While inheriting the linear phase concept, the SB-G90 has newly developed two-way coaxial cone units (including mid-range and tweeter) targeting high-speed reproduction with enhanced high sensitivity.

Phase Precision Driver (Flat Coaxial 2-Way Speaker Unit)
A lightweight, high-rigidity anodized aluminium dome diaphragm is used for the tweeter diaphragm. The driver reproduces a wide frequency range up to 100 kHz by using a new dome shape optimized through simulation, as well as achieving greater uniformity in phase characteristics by using a phase plug. In addition, the SB-G90 uses high-linearity-drive underhung voice coils, the magnetic gaps of which have had magnetic fluid injected to suppress temperature rise, thereby ensuring superior power linearity. These features provide reproduction of the high-frequency range with superb detail and beauty.
As with the tweeter, the mid-range also uses an anodized, lightweight, high-rigidity aluminium cone diaphragm. The magnetic circuit achieves low distortion and enhanced drive power by using large magnets, copper caps, and high-linearity-drive underhung voice coils. Also, the support structure provided by the tough die-cast frame has resonance-dispersing arms, thereby thoroughly eliminating even the slightest unnecessary resonant sound. These features enable mid-range reproduction with excellent precision and response.
In addition, the mid-range diaphragm uses a cone shape in which its sound generation centre in the axial direction is closer to the sound generation centre of the tweeter, and the position of the axial direction of the dome tweeter placed in the centre of the mid-range diaphragm is precisely adjusted, thus achieving linear phase reproduction by integrating the sound in each range without time lag. Also, the inside end of the mid-range diaphragm has a smooth shape so there is no deterioration of tweeter sound characteristics, with the diaphragm being constructed to deliver the sound emitted from the tweeter directly to the listening space. This reproduces mid-range and highs with superb precision and response, as well as excellent clarity in sound imaging.

BDMA (Balanced Driver Mounting Architecture)
With the conventional method of mounting a speaker unit to a baffle, the centre of gravity of the speaker unit was located away from the support points, and so the force acting on the voice coil when driving the speaker produced vibration of the entire speaker unit. This produced distortion in the sound waves generated from the diaphragm, resulting in deterioration of sound quality. In addition, mounting the speaker unit to the baffle is a configuration that easily transmits vibration of the speaker unit itself to the baffle, and so unnecessary vibration sound was produced from the baffle, again with deterioration of the sound quality.
With Balanced Driver Mounting Architecture, the speaker unit is mounted to a sub-baffle installed inside the cabinet at the speaker unit's centre of gravity, suppressing vibration of the speaker unit. Also, because the speaker unit is not mounted to the baffle on the front, transmission of unwanted vibration from the speaker unit to the baffle is suppressed. This makes it possible to reduce distortion in the sound waves generated from the diaphragm and reduce unwanted vibration sound from the baffle, for reproduction of a sound field with excellent sound imaging featuring impressive realism and clarity, allowing visualization of the fine details of each and every sound.

High-quality Network Circuit
The high-precision network circuit was created through repeated listening and redesign, in order to maximize the performance of each speaker unit and achieve well-balanced sound. High-quality parts, such as a polypropylene film capacitor, an air-core choke coil, and OFC wire used for connection were carefully selected by examining their properties.
In order to prevent sound vibration emitted into the cabinet by the speaker units from affecting the network, the network is installed in its own compartment separated from the speaker units, thereby achieving reproduction of sound providing an atmospheric feel.

High-rigidity Cabinet
Cabinet strength is ensured inside the cabinet by using a cross construction with sub-baffles to which the speaker units are mounted and horizontal reinforcing panels. A separate sub-baffle is used for each speaker unit, which minimises sympathetic vibration between speaker units. In addition, differentiated use of two kinds of absorbent acoustic materials with optimal placement inside the cabinet suppresses internal standing waves and reduces incidental sound due to reflection in the cabinet.
Also, multiple polyurethane (PU) coatings on the cabinet surface dampen cabinet vibration, thereby thoroughly suppressing the production of unnecessary sound. These features reproduce a vast sound field with excellent sound imaging.

Discover your own personal sound experience

In our living room studio "Klangvilla" in Leipzig we feature more TECHNICS products which are at all times ready for presentation. You will have the option to be explained and demonstrated also other high-quality high-end devices by our sales manager who will be available for you. We can also recommend the appropriate wiring and other high quality Hi-Fi accessories. Simply arrange a consultation or demonstration with our sales manager for home hi-fi.

Technical Data

Emotive Acoustic Technologie / Emotive Acoustic Technology: • Lautsprechersystem mit Punktschallquelle / Point-Sound-Source Speaker System
• Breitbandige Reproduktion mit niedrigen Verzerrungen / Wide Range & Low Distortion Reproduction
• Phase Precision Treiber (Koaxiales 2-Wege-Flachlautsprechersystem) / Phase Precision Driver (Coaxial Flat 2-way Speaker Unit)
• 16-cm Langhub-Tieftonchassis / 16-cm Low Distortion Long Stroke Woofer
• Hochwertiges Frequenzweichen-Layout / High-quality Network Circuit
• BDMA (Balanced Driver Mounting Architecture)
• Schwerpunktoptimierte Treiberaufhängung / Focus-optimized driver suspension
• Extrem steifes Lautsprechergehäuse / High-rigidity Cabinet
Definitives Technics Design / Technics Definitive Design: • Hochglanz Schwarz / Black High Gloss Finish
• Magnetisch fixiertes Lautsprechergitter / Magnet Fixed Fabric Grille
Typ / Type: 3-Wege-Bassreflexsystem mit 4 Lautsprechern (einschl. koaxialer 2-Wege-Treibereinheit für Mittel- und Hochtonbereich) / 3-way 4-speaker Bass Reflex (including 2-way coaxial cone units for mid-range and tweeter)
Lautsprecher / Speaker unit: • Tieftöner/Woofer: 2x 16cm Konustreiber / cone type
• Mitten/Mid-Range: 1x Coaxial, 16 cm Konustreiber / cone type
• Hochtöner/Tweeter: 1x 2.5 cm Dome type
Crossover Frequenz / Crossover frequency: 480 Hz, 3.2 kHz
Frequenzbereich / Frequency range: 27 Hz - 100 kHz (-16 dB), 32 Hz - 85 kHz (-10 dB)
Schalldruckpegel / Sound pressure level: 88dB /2.83V (m)
Impedanz / Impedance: 4 Ohm
Eingangsleistung (IEC) / Input power (IEC): 100 W (Rated), 200 W (Max)
Abmessungen (B x H x T) / Dimensions (W x H x D): 30,2 cm x 111,4 cm x 37,5 cm (inklusive Abdeckung und Anschlüssen / including net and terminals)
Gewicht / Weight: ca. 32 kg Stück/piece

Scope of Delivery

  • 2 x TECHNICS - SB-G90 - 3-Way bass reflex floorstanding loudspeakers - Grand Class speaker system in high-gloss black
  • 8 x spikes
  • 8 x spike washers
  • 8 x spacer
  • 8 x base plates
  • 24 x base plate screws
  • 8 x rubber feet
  • 1 x cleaning cloth
  • 2 x speaker nets
  • 1 x operating instructions

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