This is a part speaker the foam inside has deteriorated and needs to be replaced.

Hier steht zum Verkauf ein erstklassiges Paar Vintage-Lautsprecher: Ein Paar Technics SB-R100 Flat Speaker, legendäre Raritäten incl. original Operating Instructions und Technical Guide! 2-way, 1-speaker, passive radiator system Wall-Mounted Type / Magnetic Protection Design 25 cm coaxial + passive radiator type For Low Band : 18 cm Flat Type For High Frequency : 2.8 cm Flat Type Frequency characteristic: 55 hz to 30 khz -16dB 70 Hz to 25 kHz -10dB Output sound pressure level: 87dB/W/m Impedance 8 ? Allowable input 100W(Music) 50W(Din) Crossover frequency: 2kHz External dimensions: Width 315 x Height 315 x Depth 65 mm Weight 4.5kg HifiClassic wrote: Technics describes the SB-R100 as a “flat speaker system” primarily in reference to its shape, and in that respect the phrase is both apt and accurate. In addition, however, our experience with this unusual speaker suggests that, while a truly flat frequency response has yet to be achieved in a loudspeaker, the SB-R100 comes closer to that goal than many far more massive and expensive speakers we have tested. The two-way SB-R100 measures only about 12-3/8 inches square and a mere 2-9/16 inches deep, so its physical flatness is indisputable. It is part of a line of super-slim audio components recently introduced by Technics that includes a combination stereo receiver/cassette deck that is the same depth as the SB-R100 and the similar but slightly larger SB-R200. The components in this line are designed to be hung on a wall (!), but the receiver/cassette player can also be placed flat on a table, and the speakers come with stands that support them at a slight backward angle when they are placed on a bookshelf or other flat surface. Our tests were limited to the SB-R100 speaker. Both models feature a novel concentric planar-driver array using the honeycomb construction introduced a few years ago in several larger Technics speakers. From the outside, the SB-R100 appears to have a single 9-inch flat-diaphragm driver with several concentric bands on its surface. Closer examination reveals that the woofer is a 7-inch-diameter ring with a 1-1/8-inch tweeter at its center. Surrounding the woofer diaphragm is an annular ring, about 9 inches in diameter, that serves as a passive radiator for the woofer. Each of the three sections of the speaker is decoupled from its neighbors, enabling them to move independently within their respective frequency ranges. The crossover frequency is 1,000 Hz. The SB-R100, including its metal-mesh grille, is finished in black and weighs 10 pounds. It has no level controls. The tweeter is protected against damage from excessive input by an automatic thermal circuit breaker, which can be reset by pressing a button on the rear of the speaker. Also on the rear are spring-loaded connectors that accept the stripped ends of the speaker wires. In addition to the table stand, a bracket is supplied to hang the speaker on a wall like a picture. Technics recommends wall mounting for best bass response. The honeycomb radiating surfaces of the drivers are formed plastic and have a very high ratio of stiffness to mass, thus greatly reducing the amplitudes of many of the resonant modes of vibration that occur on a conventional paper or plastic cone. The radiating surfaces are in the same plane, which improves the phase coherence of the acoustic output. Despite its small size, the SB-R100 is rated to handle up to 100 watts of music program input (its companion receiver is rated at 30 watts output). Year : 1984 Voll funktionsfähig und in gepflegtem Zustand mit geringen Gebrauchsspuren (siehe hierzu die aktuellen, von mir selbst gefertigten Fotos).Beim bekannten, hier in Berlin ansässigen Lautsprecherhersteller Expolinear wurde ein Frequenzschrieb meiner Lautsprecher gefertigt, der gut den überzeugenden Frequenzgang ab Oberbass zeigt. Klar ersichtlich ist aber auch, dass diese Boxen keinen Tiefbass beherrschen, ggfs. sollte hier ein Subwoofer zur Unterstützung ergänzt werden. Die Ware wird unter Ausschluss jeglicher Gewährleistung verkauft. Der Ausschluss gilt nicht für Schadenersatzansprüche aus grob fahrlässiger bzw. vorsätzlicher Verletzung von Pflichten des Verkäufers sowie für jede Verletzung von Leben, Körper und Gesundheit.

Speakers are being sold as is these are untested. The one on the right is in much better condition and the one on the left there doesn’t seem to be much damage, but the speaker liner will be need to be replaced in both as they are deteriorated. please ask any questions thanks.

HI AND WELCOME TO MY SALE FOR THESE SET OF SPEAKERS WHICH ARE BEING SOLD FOR SPARES OR REPAIR. BOTH PLAY AUDIO BUT THE FOAM SURROUNDS ARE DONE DUE TO AGE, A VERY RARE SPEAKER SO SURE THEY ARE WORK TIME TO FIX, THESE ARE AROUND 4.3KG EACH AS THEY ARE FULL METAL HOUSINGS. ANYTHING ELSE PLEASE ASK. POSTAGE.DELIVERY IS FOR UK MAINLAND ONLY, CONTACT ME FOR OTHER LOCATIONS. SPARES OR REPAIR ITEM.I GET FAR TOO MUCH STUFF TO MESS AND DONT ATTEMPT REPAIRS, ALL ITEMS WORKING OR NOT ARE SOLD JUST AS I SEE THEM, BUT PLEASE NOTE WITH SPARES OR REPAIR LOTS THEY CANT BE FULLY TESTED SO THESE MAY HAVE OTHER ISSUES NOT PICKED UP BY ME IN MY LIMITED TIME WITH THE ITEM. NO RETURNS WITH FAULTY ITEMS, SOLD AS SEEN TO THE BEST OF MY KNOWLEDGE, NOTHING IS HIDDEN WITH MY ADVERTS WHICH IS WHY I ALSO USE 12 GOOD QUALITY PICTURES, CHECK MY FEEDBACK FOR PEACE OF MIND.

Zum Verkauf ist eine absolute Rarität - flache koaxial Lautsprecher von Technics. Und dazu noch originalverpackt, unbenutzt, Karton von Fabrik....Nutzen Sie ihre Chance solche Rarität zu kaufen ! SpecificationsType: 3 way, single driver loudspeaker systemFrequency Response: 55Hz to 30kHzPower Handling: 50WCrossover Frequency: 2000HzImpedance: 8?Sensitivity: 87dBFull Range: 1 x 250mm coneDimensions: 315 x 315 x 65mmWeight: 4.5kgYear: 1984