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D'agostino Momentum Mono Amplifiers Zoom

D'agostino Momentum Mono Amplifiers

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SKU: D'agostinoMomentum
D'agostino Momentum Mono Amplifiers, one owner since new, very light use
original flight cases
Description: Solid-state monoblock power amplifier. Inputs: 1 balanced (XLR). Output power: 300W into 8 ohms, 600W into 4 ohms, 1200W into 2 ohms (all equivalent to 24.8dBW). Voltage gain, input impedance, output impedance: all not specified. Frequency response: 1Hz–200kHz, –1dB; 20Hz–20kHz, ±0.1dB. THD (300W at 8 ohms): 0.1% at 1kHz. Signal/noise: 105dB, unweighted (no reference given).
Dimensions: 12.5" (317.5mm) W by 5" (127mm) H by 21" (533.4mm) D. Weight: 95 lbs (43kg).

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Availability: In stock

Product Description


    D'agostino Momentum Mono Amplifiers What better way to celebrate the expiration of a noncompetition clause than to debut a product that has no competition? That's what Dan D'Agostino appears to have done with his Momentum monoblock amplifier ($55,000/pair)—his first new product since leaving Krell, the company he cofounded more than 30 years ago. First shown a year and a half after the split, the Momentum has created something of a sensation in the audio world, due in equal parts to D'Agostino's long history of innovation in the design of high-performance audio circuitry and the amplifier's stunning looks. Visually, the Momentum is a complete break with D'Agostino's previous efforts. Does anything out there right now compete with its gleaming, jewel-like elegance? It manages a high bling factor without ostentation, and while the look has broad aesthetic appeal, enthusiasts of mechanical watches in particular must have been wiping away the drool at first glance. I drooled, and I couldn't care less about watches. Compact yet powerful Unlike the often large, boxy Krells of yore, the 5"-high, 95-lb Momentum is remarkably compact for an amplifier rated at 300, 600, or 1200 watts into, respectively, 8, 4, or 2 ohms. While the central power meter dominates the faceplate, the thick copper side panels draw equal attention. And they're bolted to a chassis machined from a single aluminum billet. In addition to his nearly lifelong dedication to high-performance audio, D'Agostino is a wine enthusiast, a watch collector, and an automobile buff, and he's managed to include elements of each passion into the Momentum's design. The Momentum's large, round, uptilted power meter, with its 19th-century-style needle, is clearly based on classic watch designs, as are the tight tolerances to which the case is machined and assembled, and the seamless fit that challenges you to find a gap or a join, let alone a bolt or screw. Hmmm. Could there be a sonic metaphor there? Instead of cooling fins, double-funnel–shaped holes are machined into the top edge of each side panel to act much as a carburetor venturi, or an air-infusing wine venturi—but instead of sucking air in to mix it with gasoline or wine, these venturis allow expanding hot air to vent upward, pulling in the cooler air below. The uses of venturis and copper, a far more efficient conductor of heat than the usual aluminum, mean that the Momentum can be both compact and run remarkably cool in class-AB, even when pressed to pump out the power. At idle, it consumes less than 1W.
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