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Grado RS 1 Headphone   $695.00   All Grado headphones have a vented diaphragm design that incorporates a large air chamber. This design concept lowers the frequency resonance (distortion) of the diaphragm and extends bass response. The diaphragm is made of a low mass polymer, carefully formed to broaden resonant modes to reduce their amplitude. The diaphragm mass is determined with the compliance of the suspension in mind so that the desired low frequency resonance is achieved. The diaphragm's total mass is calculated to provide a full 20 KHZ bandwidth, while avoiding break-up at lower frequencies. The Reference Series RS1 and RS2 along with the Prestige Series SR325's, SR225's and SR125's feature voice-coils that are wound from ultra-high purity, long crystal (UHPLC) oxygen free copper. The copper is slowly drawn through the die in extremely small increments and is annealed following each drawing operation. Ultra-high conductivity copper yields the clearest transmission and lowest coloration possible. The sound of UHPLC copper is smoother, cleaner and more dynamic. All use very high power neodymium magnets to provide maximum efficiency and better sound. Each headphone driver is made to Grado's high standards, then pair-matched for exact imaging. The RS1's, RS2's and SR325's also utilize UHPLC copper in the connecting cable. All metal work for the SR325 is machined from a special non-resonant, very hard alloy. Grado utilizes a special processing method to increase the material's porosity. This complex treatment insures that the earphone chamber has no "ringing" which might obscure detail or add coloration. Grado's wooden Reference Series are hand-crafted at our labs from a specially selected species of mahogany. An intricate procedure of curing is done between production steps to achieve optimal sonic quality. The overall sound remains pure Grado, warm harmonic color, full bodied vocals, excellent dynamics and an ultra smooth top end. Technical refinements for Grado drivers include improved diaphragm and voice coil design for increased bass response and a larger perceived sound stage. A unique process to "de-stress" the diaphragm results in enhanced inner detail. An increased ability to control driver resonance virtually eliminates distortion. For all models, an improved headband spring will afford greater comfort for the majority of listeners. AND THE SOUND? Grado headphones can reproduce as natural a soundstage from stereo recordings and provide as much listening pleasure as a good pair of speakers do. Grado headphones are free of room effects and placement problems, and they minimize any interference from external noise. They also offer portability and the ability to listen without worrying about the neighbors. With Grado headphones, you will hear recordings with greater clarity and with deeper bass than others! Grado headphones are the antithesis of mass production, as each Grado headphone is hand-assembled and closely scrutinized to meet full performance specifications in the U.S.A. The RS-1 is the Masterpiece of the Grado collection, the Top Of The Range product which oozes class both in looks and sound. Featuring handcrafted Mahongany earpieces made using an intricate curing process, Grado has been able to optimize the tonal quality. The RS1 uses dynamic transducers in an open-air configuration, the cups being open-backed. The result is a smooth, coherent sound with detailed dynamics. Frequency response ranges from 12-30 kHz and the drivers are matched to 0.05dB. Weighing 9oz, the headphones are an example of the wonder of mother nature with a gorgeous, honey-colored look.   Features: Vented diaphragm Wooden air chamber UHPLC copper voice coil wire UHPLC copper connecting cord Tranducer type:  dynamic Operating principle: open air  Frequency response: 12-30 SPL 1mV: 98 Normal impedance: 32ohms Driver matched db: .05 The RS1's are the only product ever nominated by STEREOPHILE for their "PRODUCT OF THE YEAR" distinction, two years in a row! "I say that the RS1 is a Masterpiece." - Ken Kessler, HI-FI NEWS - RECORD REVIEW   Rated Class "A" on STEREOPHILE'S recommended components list. "It's rare that any audio product can come along and simply bowl me over. In this case, I yeild." -Jack English, STEREOPHILE Vol.19, No.7  "I would urge any serious headphone listener to audition this Grado RS1." -John Borwick, Gramophone   "One of the years awesome high-end audio achievements" -Ken Kessler, Robb Report "The RS1 offers something so stunning that price becomes irrelevant" -Gavin Isaacs, Audio Video "If you value headphone listening enough to consider buying a reference dynamic, then you should audition the RS1's." -Wes Philips, STEREOPHILE Vol.19, No.7 "I can honestly say that there is no better sounding headphone than the Grado RS1" -Corey Greenberg, Home Theater Vol.3, No.5 "I'm very impressed with it" said Wes Phillips, an editor at Stereophile magazine who is evaluating the headset for next month's issue. "John introduces things that monster companies can't produce." Excerpt / New York Times / 8/18/96 / Mark Cohen "We've always had bit of a headphone fettish at What Hi-Fi? We're often talking about how they can create your own private universe, plug directly into your favorite piece of music. Now we've heard the Grado RS1s, and our fettish has become an epic, full blown love affair. Ooooh..." What Hi-Fi

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Audio Connection 615 Bloomfield Ave. Verona, New Jersey 07044

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