Reference Sounds – Wilson Sasha V with Wadax Atlantis Reference and D’Agostino
Dan D’Agostino Momentum MxV S250 Stereo Power Amplifier
The Momentum S250 MxV stereo amplifier features techniques and topologies initially developed and implemented in the Relentless Mono Amplifier and delivers the sound quality of the Momentum M400 MxV monoblock in a more affordable stereo design. The circuit topology and construction of the stereo amplifier mirror those of the monoblock, using the same ultra-efficient copper heat sinks with venturi cooling, the same 1% metal-film resistors, the same 69 MHz output transistors, and the same fully complementary balanced configuration.
The amplifier has a handful of improvements over the previous model, among which are a new transformer that provides higher current and greater dynamic headroom, a revised input stage with a new topology leading to wider bandwidth, and reduced distortion. Furthermore, the output stage has additional power transistors and utilizes a nearly 50% increase in operating bias.
Dan D’Agostino Momentum HD Preamplifier
Housed in a separate chassis for maximum isolation, the Momentum HD main power transformer is 33% larger as compared to the original Momentum Preamplifier. A unique winding technology, first employed in the Momentum M400 amplifier, delivers greater power output from the same footprint. Separate supplies power audio and control circuitry, so the control circuits are completely isolated from the audio circuits. Internal circuitry filters RF noise from the AC powerline, compensating for asymmetric power waveforms and DC on the main power line.
Taking advantage of the increased power supply capability, the output stages are now operating at a 36% percent higher voltage. The increased output voltage has opened up the dynamics on both the micro and macro levels.
Wilson Sasha V Loudspeakers
With its own distinctive identity, Sasha V combines the essence of its famous predecessors while combining some of the most effective elements developed for its larger siblings. The upper module two-position front spike track offers additional adjustment positions the previous model Sasha DAW didn’t have, resulting in more precise time alignment accuracy and more adaptability to a wider variety of listening positions.
Sasha V has strategically nested V-Material in the critical interface between the upper module and the top of the woofer cabinet. Novel in its properties, this material provides uncommon vibration control and upper module isolation, similar to the design philosophy found in the prestigious Alexx V and Alexia V.
An all-new copper version of the AudioCapX-WA capacitor has been recently developed, raising the bar for high-frequency micro detail, and makes its debut in the Sasha V. The AudioCapX-WA capacitors, along with fine-tuning the Sasha V’s crossover topology, have contributed to a new standard of low-level resolution in a playback system.
Wilson Audio now also make their own capacitors!
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