Dan D'agostino Momentum s250 MxV Stereo Amplifier
Best stereo amplifier for audiophiles seeking uncompromising monoblock-level performance.
Experience unparalleled audio fidelity with the Dan D'agostino Momentum S250 MxV stereo amplifier. This powerhouse delivers the exceptional sound of monoblock amplifiers in a more accessible stereo design, featuring advanced circuit topologies and ultra-efficient cooling. Enjoy greater headroom during dynamic passages and extended frequency response with reduced distortion, thanks to enhanced input, driver, and output stages. The amplifier boasts new, high-output transistors for incredible bandwidth and a richer, more dynamic presentation. Each unit is meticulously hand-built and tested in the USA, ensuring superior performance and build quality for the discerning audiophile.
$50000.00
Owner Satisfaction
4.8
/ 5
Category Rank
37
/ 1718
#37 in Power Amplifiers
Price vs Category Average
+506%
Above average
Power Output
2508500410002
/ watts @ Ω, watts @ Ω, , watts @ Ω
Who it's for
- Audiophiles seeking absolute transparency and effortless speaker control
- Design-conscious listeners wanting a visual centerpiece for their system
- Serious collectors prioritizing long-term musical engagement and build quality
Who should skip it
- Budget-conscious hobbyists seeking accessible high-end performance
- Homeowners with limited space or restrictive furniture constraints
- Listeners without a fully matched ultra-premium component chain
Performance breakdown
Dynamic Headroom
Effortlessly handles complex musical peaks without a hint of strain.
Build Integrity
Meticulously hand-built construction defines the pinnacle of American audio engineering.
Thermal Efficiency
Advanced Venturi cooling keeps performance stable during the most demanding sessions.
Signal Purity
Fully balanced circuitry ensures an exceptionally clean and transparent soundstage.
Current Delivery
Massive power reserves drive even the most difficult loudspeaker loads easily.
Frequency Extension
Remarkable bandwidth captures every nuance from deep bass to delicate highs.
Key Specs
Power Output
250 watts @ 8Ω, 500 watts @ 4Ω, 1,000 watts @ 2Ω
Frequency Response
1 Hz to 200 kHz, -1 dB; 20Hz to 20 kHz, ±0.1 dB
Signal-to-Noise Ratio
105 dB, unweighted
Total Harmonic Distortion
0.1% @ 1 kHz
Input Impedance
1 MΩ
Output Impedance
0.12Ω
Dimensions
12.5 x 21.5 x 5.25 inches / 31.75 x 54.61 x 13.34 cm
Inputs
2 balanced XLR
Features
- Delivers the sound quality of monoblock amplifiers in a stereo design
- Features ultra-efficient copper heat sinks with Venturi cooling
- Utilizes 1% metal-film resistors and 69 MHz output transistors
- Fully complementary balanced configuration for accurate signal reproduction
- New transformer pattern provides over 50% more current output
- Enhanced input stage with advanced components and new bipolar transistors
- New bias stability circuit increases Class A operation by nearly 50%
- Hand-built and individually tested for quality assurance
What customers say
Customers consistently praise the Dan D'agostino Momentum s250 MxV Stereo Amplifier for its unparalleled audio quality and exquisite design. Reviewers frequently highlight the amplifier's ability to deliver a remarkably transparent and powerful soundstage, revealing intricate musical details with effortless grace. The robust build and stunning aesthetic are also recurring themes, reinforcing its status as a true high fidelity masterpiece. While a significant investment, the consensus points to an extraordinary listening experience that justifies its premium positioning, making it a coveted component for serious audiophiles seeking sonic perfection.
Know before you buy
The S250 MxV is designed to deliver the sonic performance and authority of monoblock amplifiers within a single, more space-efficient stereo chassis. It achieves this through a fully complementary balanced configuration that maintains channel separation and signal integrity.
The Venturi cooling system utilizes ultra-efficient copper heat sinks to dissipate heat effectively without the need for noisy internal fans. This ensures the amplifier remains thermally stable during demanding passages while maintaining a silent operating environment.
The new bias stability circuit increases Class A operation by nearly 50%, which results in a more refined, musical, and dynamic presentation. This allows the amplifier to handle complex musical transients with greater ease and lower distortion.
Yes, the S250 MxV is exceptionally capable with difficult loads, doubling its power output as impedance halves. It delivers 250 watts into 8Ω, 500 watts into 4Ω, and 1,000 watts into 2Ω, ensuring consistent control over demanding speakers.
Because the amplifier features balanced XLR inputs and an input impedance of 1 MΩ, it is highly compatible with a wide range of high-end preamplifiers. For the best results, pair it with a preamplifier that also offers a fully balanced signal path.
While the Venturi cooling system is highly efficient, you should still provide adequate clearance around the unit to allow for natural airflow. Avoid placing it in a fully enclosed cabinet to ensure the heat sinks can perform optimally.
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