Headphones Grado Prestige Series, by virtue of their extremely high sonic characteristics, enjoy unanimous support from both the audiophile world of the press internationally. All models are of open type, solution that facilitates the reduction of distortion and resonances, and which extends the frequency response at low frequencies. The diaphragm is made using a special polymer calculated from the mass very small in order to receive the maximum extension and regularity of the audio spectrum. The coils are made of copper UHPLC (ultra-high purity wire, in the absence of oxygen and by the crystals to elongated structure) that allow the maximum run of the signal and the least possible coloration. This copper is used in SR325i not only in the winding of the coil but also in the cables. The copper is in fact drawn directly from the laboratories Degree with mechanical processes at low speed and allows to keep unchanged the molecular structure of the conductor. This element is extremely important for ensuring the following advantages: - even the smallest information can be reproduced without any loss. - Very low staining for clear sound but never tiring - high dynamics combined with low distortion. The magnetic unit used is a powerful neodymium element of high efficiency that also allows for greater control of the movements of the diaphragm. The resonance chamber of SR325i is obtained from a very hard aluminum alloy. The production process of this alloy allows to increase the porosity of the material ensuring an absence of resonances that can color and obscure smaller sound details. All models have also been optimized from the point of view of comfort, in fact, and allow long and pleasant listens without problems of excessive weight or compression of the bow.
SR-325i has won the '' Hi-Fi Grand Prix Award "sponsored by the magazine AudioVideo.
Sound: The SR325 does all its goodness sound of the Signature series, with high open and sharp, a defined midrange and very introspective, low stalwart. The SR325i be considered an excellent buy for those looking for pure performance and is at a price 4.3 times lower than that of the sibling headphones.
Frequency Response 20Hz-20kHz
Normal Impedance 32 Ohms
Supplied with standard 1/4 "
UHPLC copper voice coil
Tolerance among drivers: 0,05dB