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HALO by PARASOUND JC 3+

$81,973.00

PREAMPLIFICADOR PHONO DE ALTA FIDELIDAD

PRESENTACIÓN: PIEZA

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Description

Six years ago we asked legendary audio designer John Curl if he would create a reasonably priced Parasound Halo phono preamplifier in the spirit of his masterpiece, the Vendetta. Three years later we introduced the remarkable Parasound Halo JC 3 which has earned rave reviews from the audiophile press and a legion of vinyl enthusiasts. During the design phase of the original JC 3, Curl had rejected variable load adjustment because potentiometers generally have higher thermal self-noise, which is an anathema to the creation of an ultra low noise phono stage. Our decision to bring the JC 3 to market with limited switched input load impedance choices disappointed some vinyl enthusiasts who consider input load fine-tuning to be essential for certain cartridges. Curl and circuit board designer Carl Thompson eventually consented to a redesign with variable load impedance adjustments, but with these caveats for the potentiometers: 1) They must comply with stringent performance requirements. 2) They must be manufactured by Vishay, a highly-regarded manufacturer of low-noise component parts. We took this opportunity to make additional performance improvements. Curl has narrowed the spectrum of Johnson/Nyquist noise in the resistor that loads the input stage. Circuit-board designer Carl Thompson tweaked the phono module board layouts to further optimize every performance parameter. The phono modules copper circuit board traces now have 24 karat gold-plating where each part is soldered to provide exceptional transparency and musical detail. As a result of these changes, the MC signal to noise ratio is improved to 87dB, A-weighted. MM gain has been increased slightly to 48dB, while MC gain has been lowered from 68dB to 64dB so that extra-high output MC cartridges won’t cause the JC 3+ to overload the inputs of some line stage preamps or integrated amps. The JC 3+ power supply has also been significantly upgraded with 47 percent larger low-ESD power supply filter capacitors and an 82 percent larger R-core power transformer. This provides much greater current reserves for head-snapping dynamics. Finally, we added an on/off switch for the front P logo illumination.

Additional information

Color

Black, Silver