Grado PS1000e Headphones
PS1000e: You Can See Yourself In These HeadphonesBy using tone-wood clad with metal alloy we’ve obliterated two of the most vexing issues in headphone design: ringing in the chamber, and transient distortion. This gives audio professionals the security of consistent response throughout the frequency range. Did we mention they look awesome? You could pay more for headphones, but you can’t afford anything less.
This hybrid design has an inner sleeve of hand-crafted mahogany made by using the new series 'e' curing process. Its outer housing, machined from chrome-plated aluminum, utilizes a special processing and casting method to increase the porosity of the alloy. This combination of wood and metal insures that the earphone chamber has no 'ringing' which might obscure detail or add coloration. The way the wood and metal housing moves air and reacts to sound vibrations is virtually unaffected by transient distortions. Grado has also designed the cable for the PS1000e; the twelve-conductor cable design uses UHPLC (Ultra-High Purity, Long Crystal) copper, improves control and stability of the total range of the frequency spectrum. The PS1000e also has a new 50mm driver and a newly re-configured voice coil and diaphragm design, resulting in unsurpassed speed and accuracy responses.
The cushion design creates the correct balance between the driver and housing to support the desired musicality. The cushion design also makes the PS1000e one of the most comfortable headphones in the world. Grado has taken all of our knowledge and over 60 years of experience in controlling resonances and eliminating distortions, and put them into our finest headphone ever, the PS1000e. Grado is unbelievably proud of this flagship product… listen and enjoy.
General DesignAll 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. 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.
Sonic ReproductionGrado 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.
Vented diaphragm Hybrid air chamber UHPLC copper voice coil wire UHPLC copper connecting cord Tranducer type: dynamic Operating principle: open air Frequency response: 5-50 SPL 1mW: 98 Normal impedance: 32ohms Driver matched db: .05Features: Grado's proprietary SpaceBlack Polycarbonate is engineered to absorb excess energy and reduce secondary impulses, for a clearer tone. Rhodium, the most expensive precious metal on earth, is employed to prevent corrosion on connectors, and unwanted graininess in your music. iMore than 60 years of Grado Labs expertise have led them to develop the most refined driver geometry in their history, which tracks music frequencies with unequaled precision. Design refinements within the housing prevent stray resonance from interacting with the driver, thus protecting the purity of reproduction. The magnetic field has been fine-tuned for symmetry throughout the full range of the voice coil. Even the glue is new, optimized for greater strength, less mass, and better reliability. The traditional Grado open-back form factor has not changed, because it delivers superior sonic quality and greater realism than closed-back.