{"product_id":"infinity-rs-1","title":"Infinity RS-1","description":"\u003cp\u003eThe 1980s speaker system inherits the development concept and design of the IRS and stands 1.5 m tall, making it suitable for installation in ordinary homes. The RS-1 is designed based on diffraction wing and point source theories. Point source theory is an acoustic theory in which all frequencies radiate in all directions from an infinitesimal vibrating sphere. However, this theory was treated somewhat vaguely because it is impossible to achieve in practice. The RS-1 is designed to produce an effect equivalent to point source transmission at the listening position, bringing it closer to point source theory. As with the IRS, gently curved diffraction wings are used to reduce dispersion caused by interference between direct and reflected waves. To improve directivity across the entire frequency range, bidirectionality is employed, emitting sound waves from the rear surface, especially in the mid and high frequency ranges, to create an ideal spherical wave. Furthermore, as the frequency increases, the diaphragm area is reduced and the drivers are arranged so that the sound image focus narrows down to the super tweeter, clarifying the overall focus. As a result, although it is a multi-way, multi-driver system, the energy response is almost equivalent to that of a point source. Pin-point sound localization and three-dimensional sound field reproducibility are achieved. The woofer column features a structure with rounded corners. The unit has six 20 cm polypropylene cone woofers arranged in tandem for the low-frequency range, and the newly developed servo-sensing network enables flat playback down to the ultra-low frequency range. The polypropylene used for the diaphragm has an extremely low Q value of 7 to 9, compared to 90 to 100 for paper cones, and exhibits excellent linearity. In addition, because the Young's modulus is also high, cone distortion caused by large transient inputs is almost eliminated, resulting in clear playback. Furthermore, the polypropylene cone forms an effective sonic barrier against back waves in the enclosure, has high tear strength, can withstand temperatures of 135°C, and is unaffected by humidity. It offers many advantages. Thick solid oak is used for the diffraction wing section. The unit is equipped with seven bidirectional EMIMs, three EMITs in the front and one in the rear. Six of the seven EMIMs are responsible for frequencies from 140 Hz to 700 Hz. Only the third one from the top receives frequencies from 700 Hz to 3 kHz. Among the three EMITs in the front and rear, two EMITs at the top and bottom receive frequencies from 3 to 8 kHz. The 8 kHz or diaphragm is 1\/2 inch wide and 1 inch long, receiving frequencies above 8 kHz. This EMIT is located adjacent to the third EMIM from the top. As a result, the total energy response is extremely clear at low levels and uniform across all bands. The EMIM (Electromagnetic Induction Midrange) mounted in the midrange has a structure in which an ultra-thin, ultra-lightweight plastic diaphragm, made by etching an ultra-thin voice coil, is sandwiched between samarium-cobalt, a strong magnetic material, and the diaphragm is driven entirely by a strong magnetic field. As a result, it can respond to transient signals and large instantaneous inputs that cone, dome, and horn types cannot follow due to their structure. Moreover, it is more resistant to large continuous inputs than the condenser type and provides excellent midrange reproduction. In addition, the reproduction range is wide, and a flat response from 150 Hz to 5 kHz is achieved. Furthermore, it is bidirectional with slit-shaped gratings on the back plate, which provides excellent sound field reproducibility. The EMIT (Electromagnetic Induction Tweeter) mounted in the high-frequency range is a full-surface drive tweeter in which an ultra-thin, ultra-lightweight plastic diaphragm is sandwiched between strong samarium-cobalt magnets, similar to the EMIM. Flat reproduction is possible up to ultra-high frequencies of 32 kHz. Moreover, since the main radiation source is 1 1\/2 inches wide, excellent horizontal directivity characteristics of -2 dB (20 kHz) are exhibited even in the 60° direction. Comes with a dedicated crossover unit. * In the RS-1, there was a recommended specification for the woofer power amplifier. The requirements are a power amplifier with an output of 150 W\/ch or more, a substantial power supply, and a housing installation with a thick cable on the - side. It was stated that the use of a bridged amplifier or vacuum tube amplifier should be avoided as much as possible.\u003c\/p\u003e\n\n\u003cp\u003eMethod 5-way, 17-speaker floor-standing system. It consists of four units (two woofer units and two midrange units) and a channel divider. Units Used For low range: 20 cm cone x6 For mid-low range: 6 EMIM models For midrange and high range: EMIM Type x1 For high frequency: EMIT Type x3 For super high range: Super EMIT x1 Frequency range 25 Hz to 32 kHz +\/- 2 dB Impedance 3 Ohm Crossover frequencies 140 Hz, 700 Hz, 3 kHz, 8 kHz Recommended amplifier Woofer unit: 150 W\/ch or more Midrange \/ Tweeter: 100 W\/ch or more (bi-amplifier system) External dimensions Woofer unit: 360 mm wide x 1,500 mm high x 360 mm deep Midrange \/ Tweeter: W 600 x H 1,500 x D 600 mm System weight Approx. 176.5 kg (total weight)\u003c\/p\u003e","brand":"Infinity","offers":[{"title":"Default Title","offer_id":59370633691481,"sku":"1915","price":5490.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1066\/5721\/8905\/files\/infinity-rs-1-1.jpg?v=1789118537","url":"https:\/\/wenwaudio.com\/en\/products\/infinity-rs-1","provider":"W\u0026WAudio","version":"1.0","type":"link"}