Dan D'Agostino - Momentum S250 MXV - Stereo Amplifier

The Dan D'Agostino Momentum S250 MXV Stereo Amplifier delivers the extraordinary performance of the Momentum monoblock platform in a refined stereo configuration engineered for uncompromising two-channel systems. Incorporating technologies derived from the flagship Relentless Series, the S250 MXV combines immense current delivery, ultra-wide bandwidth, and exceptional dynamic precision in a compact, precision-machined chassis.

Every major amplifier stage has been extensively redesigned for the MXV generation, including the power supply, input, driver, and output sections. A newly engineered 2,200VA ultra-quiet linear transformer and nearly 100,000μF capacitor bank provide substantially increased current capability and improved transient response, while upgraded high-speed output transistors expand bandwidth and reduce distortion across the frequency spectrum.

The fully balanced direct-coupled topology is paired with Dan D'Agostino’s signature copper venturi heatsink system for exceptional thermal stability and increased Class A operation. Finished with the company’s iconic Swiss watch-inspired power meter and sculpted aluminum/copper chassis construction, the Momentum S250 MXV delivers reference-level authority, control, and musical realism.

Available in Silver or Black finishes

FEATURES

• Fully balanced stereo power amplifier design
• MXV-generation Momentum circuitry
• 250W per channel into 8 ohms
• 500W per channel into 4 ohms
• 1000W per channel into 2 ohms
• 2,200VA ultra-quiet linear transformer
• Nearly 100,000μF capacitor bank
• Discrete direct-coupled balanced circuitry
• Fully complementary driver stage
• 69MHz high-speed output transistors
• 26 matched output transistors
• Copper venturi-style heatsink system
• Balanced XLR stereo inputs
• Dual speaker binding posts per channel
• Swiss watch-inspired analog power meter
• Precision-machined aluminum and copper chassis
• Upgradeable from previous Momentum stereo amplifiers
• Hand-built and individually tested in the USA

SPECIFICATIONS

Type: Stereo Power Amplifier
Amplifier Class: Class AB
Output Power (Per Channel): 250W @ 8Ω / 500W @ 4Ω / 1000W @ 2Ω
Frequency Response: 1Hz – 200kHz (-1dB) / 20Hz – 20kHz ±0.1dB
Signal-to-Noise Ratio: >75dB A-weighted / >105dB unweighted
Total Harmonic Distortion: 0.1% @ 1kHz, 250W @ 8Ω
Gain: 27dB
Input Impedance: 100kΩ
Output Voltage: 120V peak-to-peak / 60V RMS
Output Current: 120A peak
Output Impedance: <0.07Ω, 20Hz – 20kHz
Power Consumption: Standby 3.8W / Idle 105W / Maximum 3000W
Inputs: 1 Pair Balanced XLR Stereo Inputs
Outputs: 2 Pairs Speaker Binding Posts
Dimensions (W × H × D): 12.5 × 5.25 × 21.5 in. (31.75 × 13.3 × 54.6 cm)
Weight: 95 lbs (43 kg)
Finishes: Silver or Black