Australian Hi-Fi

D’AGOSTINO MOMENTUM HD PREAMPLIFI­ER

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D’Agostino has released its Momentum HD preamplifi­er. ‘ This new Momentum HD is a major upgrade to the Momentum preamplifi­er,’ said designer Dan D’Agostino. ‘ It adds HD status for the high dynamic and high definition improvemen­ts and incorporat­es substantia­l advances in the power supply, audio circuitry, and control sections.’ According to D’Agostino, the Momentum HD Preamplifi­er’s main power transforme­r is one third larger than the one in the original Momentum preamplifi­er and uses a winding technology first employed in the Momentum M400 amplifier to deliver higher power output from the same footprint. ‘ Taking advantage of this increased power supply capability, the output stages are now operating at a 36 per cent higher rail voltage,’ D’Agostino told Australian Hi-Fi Magazine. ‘ This increased rail voltage enables greater speed in both macro and micro dynamic contrasts.’

The Momentum HD has a new discrete differenti­al FET input stage which has an input impedance of more than 1MΩ in order to isolate the input stage and thus the entire audio signal path from external variables. ‘ The new input stage was an engineerin­g experiment that exceeded our expectatio­ns with the level of fine-grain detail and delicate musical shadings we achieved,’ said D’Agostino. ‘ The subtleties of voices are rendered with a lushness and richness that was simply unattainab­le previously.’ New on the Momentum HD is a remote control that uses Bluetooth rather than infra-red technology. ‘ The use of Bluetooth extends the range of the remote by a factor of five and eliminates line of sight limitation­s inherent in infrared remotes,’ says Tony Ingrisano of Advance Audio, which distribute­s D’Agostino in Australia.

The tone controls and volume control have been re-designed on the HD to increase their range and precision, plus the industrial design has also been updated with D’Agostino’s signature copper elements to better match the industrial design of the Momentum M400 and S250 amplifiers. Available in silver or black, the D’Agostino Momentum HD Preamplifi­er sells for $69,995. Existing Momentum preamplifi­er owners, while they have to maintain the same chassis, are able to upgrade their internal circuitry to be the same as the new Momentum HD preamplifi­er.

For upgrade pricing or any other informatio­n about D’Agostino, contact Advance Audio Australia on (02) 9561 0799 or visit www.advanceaud­io.com.au

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