Dan D’Agostino Momentum MxV Integrated Amplifier – Quick Look

All Image Credit: Dan D’Agostino

Dan D’Agostino Master Audio Systems has released its second-generation Momentum Integrated Amplifier, the Momentum MxV. This latest, hand built, modular integrated design, combines technology from the Momentum HD Preamplifier and the power section of the Momentum S250 MxV Stereo Amplifier.

The Momentum MxV supports a modular structure that allows users to add to the base design optional digital streaming and/or a phono stage modules. The digital module supports a wide array of inputs to include; USB A type, Optical, SPDIF coaxial, Ethernet RJ45 and Wi-Fi with PCM data rates of up to 32 bit/192 KHz and DSD signals up to DSD1024. The optional phono module adds vinyl playback capability supporting MM and low output MC cartridges providing over 60dB of gain and loading options from 100Ohm-47kOhm. There is also a dedicated iOS D’Agostino DSM app that supports built-in Tidal, Qobuz and MQA decoding plus complete unit control.

DAC Option Streaming Module

This powerhouse contains a 2,000VA linear power supply that uses a toroidal transformer with 60,000µF of storage supplying power amplifiers that contains 28 selected, high speed, high-output transistors that can deliver; 250/500/1,000W of Class AB power into 8/4/2Ω speaker loads. The supplies design also includes filters for RF noise and can compensate for powerline asymmetries and DC offsets.

Ensuring optimum noise isolation the MxV is made up of two separate chassis. The bottom contains the power supply while the top contains all the audio electronics. These chassis are design to interlock and use a 30-pin 30 amp interlocking connector to eliminate wiring and isolate the audio signal physically and electrically from the power supply section.

The preamplifier section comprises six individual left and right circuit boards that use core topologies from the Momentum HD Preamplifier. The integrated design allowing for a direct connection of the preamplifier stage to the amplifier input section eliminating the use of connectors or cables.

Heat and stability are never a problem with the each of the matched 28 power transistors mounted with two stainless steel fasteners for maximum thermal transfer to the copper heat sinks and solid machined aluminum chassis, all under control of a new bias scheme that prevents excessive temperatures while at the same time increasing the available Class A power. With each transistor having a capacitor/resistor network connected to its base ensuring stability even at high frequencies and with low-impedance speakers.

Finally, rear panel stereo connectivity includes; speaker binding posts (x2), line level; balanced XLR (x3) and unbalanced RCA (x1) inputs and balanced XLR outputs (x1) plus balanced XLR line level outputs (x1). A front panel 1 1/4″ headphone connector is also available that is driven by a dedicated headphone amplifier.

MSRP: (MxV/digital module/phono module)

• US: $65,000/$10,000/$5,000
• UK: £73,998/£11,398/£5,698

For more information visit the Dan D’Agostino web site.

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