Momentum MxV Integrated Amplifier

The ultimate integrated delivers 250 WPC, with an optional Digital Streaming Module and phonostage

Without Compromise

The highly acclaimed Momentum MxV Integrated Amplifier achieves a level of performance never before accomplished in an integrated amplifier. Combining the front-end technology from the Momentum C2 Preamplifier and the power section of the Momentum MxV amplifier, it delivers Momentum Series performance in a compact framework only hinting at the advanced circuitry within.

The Ultimate Integrated

Employing a configurable, modular design, the core line stage section can be augmented to include modules for digital streaming as well as phonostage. When fully equipped, the Momentum MxV Integrated Amplifier topology is a seamless circuit working as one from input to output, optimizing performance in a way otherwise not possible.

Serious Power Supply

Defying its size, the Momentum MxV Integrated Amplifier is a powerhouse. A new ultra-quiet 2kVA linear transformer with unique toroidal winding technology delivers greater power output than a conventional transformer. This engine drives a nearly 60,000 μF capacitor bank resulting in 250 watts per channel of power output into 8 ohms. Output doubles to 500watts per channel into 4 ohms and 1,000 watts per channel into 2 ohms. The Momentum MxV Integrated Amplifier is capable of driving any loudspeaker to its fullest potential. Internal circuitry filters RF noise from the AC powerline and compensates for asymmetric power waveforms and DC on the mains. Isolating the audio signal physically and electrically from the power supply section requires two separate chassis that elegantly interlock through 30-pin, 30-amp, gold-plated connectors.

Advanced Audio Circuitry

Every section of the Momentum MxV Integrated Amplifier benefits from advancements pioneered in the Relentless and Momentum Series. In the preamplifier, six left and right circuit boards make up the input, volume control, and output sections. The advantage of an integrated amplifier is the direct connection of the preamplifier output stage to the amplifier input section, eliminating connector and cable anomalies that potentially impact electrical and sonic performance. Crucial to the circuit are bipolar transistors powering the front end of the amplifier that deliver 10 times the current and power of devices previously employed. These wider-bandwidth, higher-power components extend low- and high-frequency performance with reduced distortion. Energizing the driver stage is a new bias stability circuit providing a nearly 50% increase in operating bias. Increasing Class A operation directly correlates to better sound quality. A unique copper/aluminum thermal engine heatsink and new bias scheme prevent excessive temperatures even under the greatest demand. Additional power transistors in the output stage reduce workload for each device, minimizing stress and allowing the entire output section to work more efficiently.

The final output stage features new output transistors sourced for the Relentless Monoblock amplifiers. A total of 28 high-speed, high-output transistors per channel are used, each mounted for maximum thermal transfer to the copper heat sinks. A capacitor/resistor network connected to the base of each transistor ensures stability even at high frequencies and with low-impedance loudspeakers. As with all Dan D’Agostino Master Audio Systems components, the Momentum MxV Integrated Amplifier features discrete, direct-coupled, balanced circuitry, the most accurate circuit platform possible.

Digital Streaming and Phonostage Modules

An optional digital streaming module (DSM) vaults the Momentum MxV Integrated Amplifier to the cutting edge of today’s digital listening environment, adding connectivity for legacy sources and premier streaming functionality. Field upgradable, the digital module adds SPDIF coaxial, Optical, and USB-A for legacy digital components and Ethernet and Wi-Fi for network-based music. The iOS D’Agostino DSM App provides built-in Tidal, Qobuz, and MQA decoding, plus complete unit control. PCM signals up to 32 bit/192 kHz and DSD signals up to DSD1024 are supported. An optional phonostage module supports low-output moving-coil cartridges with over 60 dB of gain and loading options from 100Ω–47kΩ.

Exquisite Construction

Both chassis of the Momentum MxV Integrated Amplifier are machined from solid aluminum for superior shielding, thermal stability, and vibration damping. High-precision milling allows the casework to fit together with no visible fasteners. Coupling innovative circuitry with unparalleled design, the Momentum MxV Integrated Amplifier raises every bar for power, performance, and design.

Specifications

Frequency Response	0.1 Hz to 100 kHz +0/-3 dB, 20 Hz to 20 kHz, ±0.1 dB
Signal-to-Noise Ratio	>75 dB, A-weighted / >100 dB, unweighted
Input Impedance	1 MΩ
Output Power (per Channel)	250 W @ 8Ω / 500 W @ 4Ω / 1,000 W @ 2Ω
Output Impedance	0.7Ω
Distortion	0.05% @ 1 kHz; 250 W per channel @ 8Ω
Analog Inputs	3 pair balanced XLR stereo; 1 pair unbalanced RCA stereo
Digital Inputs (w/optional DSM)	1 each SPDIF coaxial; Optical; USB-B; RJ45 Ethernet; Wi-Fi
Outputs	1 pair balanced XLR stereo; ¼-inch headphone;2 pair binding posts
Control Protocol	RS-232
Dimensions (WHD)	18.25 x 9.5 x 17.8 in / 46.4 x 24.1 x 45.2 cm
Weight	112 lb / 50.8 kg
Finish	Silver or Black