Dan D'Agostino Progression M550 Monoaural Amplifier
Best ultimate fidelity for discerning audiophiles.
The Dan D'Agostino Progression M550 Mono Amplifier, a second-generation powerhouse, redefines audio fidelity. Inspired by the flagship Relentless, its heatsinks are milled from a single aluminum billet for superior cooling. This monoblock delivers a robust 550W into 8 ohms, featuring significant internal revisions for lower distortion, enhanced dynamics, and extended frequency response. The extended Class A bias range ensures rich tonal reproduction, while the Super Rail topology maximizes signal swing. Its iconic design includes responsive power meters, blending sonic excellence with visual artistry for an unparalleled listening experience.
$23750.00
More Progression Options
Owner Satisfaction
4.8
/ 5
Category Rank
38
/ 2551
#38 in Power Amplifiers
Price vs Category Average
+188%
Above average
Frequency Response
180120200.01
/ Hz to kHz, - dB / Hz to kHz, ± dB
Who it's for
- Audiophiles seeking ultimate fidelity and musical immersion
- Discerning collectors valuing both performance and aesthetic excellence
- Serious listeners demanding the purest stereo imaging
Who should skip it
- Budget-conscious buyers or those new to high-end audio
- Apartment dwellers or those with limited listening room space
- Casual listeners or those preferring simpler, integrated audio setups
Performance breakdown
Power Delivery
Effortlessly drives even the most demanding low-impedance speaker loads with ease.
Tonal Richness
Extended Class A bias provides a lush, harmonically dense listening experience.
Thermal Management
Custom-milled billet heatsinks maintain optimal stability during intense playback sessions.
Signal Purity
Advanced input topology ensures a remarkably clean and transparent audio path.
Build Integrity
Massive construction quality reflects a standard of uncompromising industrial engineering.
Dynamic Range
Super Rail technology delivers explosive transients and exceptional musical scale.
Key Specs
Frequency Response
1 Hz to 80 kHz, -1 dB / 20Hz to 20 kHz, ±0.01 dB
Signal-to-Noise Ratio
105 dB - unweighted / 75 dB - A weighted
Input Impedance
100 KΩ
Output Impedance
0.1Ω
Power Output
550 watts @ 8Ω, 1,100 watts @ 4Ω, 2,200 watts @ 2Ω
Total Harmonic Distortion
0.015% @ 1 kHz
Inputs
1 balanced XLR
Dimensions
17.875 x 9.0 x 23.0 in / 45.4 x 23.0 x 58.4 cm
Know before you buy
With 550 watts into 8 ohms and the ability to double that output as impedance drops to 2 ohms, this amplifier is designed to drive virtually any loudspeaker on the market, including those with difficult or reactive loads.
Inspired by the flagship Relentless amplifier, each heatsink is milled from a single 48.5-pound aluminum billet. This design provides superior thermal management, ensuring the amplifier remains stable and reliable even when operating at full power for extended periods.
The M550 features an enhanced Class A bias range of 70 watts. This allows the amplifier to operate in its most linear and refined state for a wider variety of listening levels, resulting in improved instrument timbre and more natural tonal reproduction.
Yes, the Progression M550 is designed for high-end systems and utilizes a single balanced XLR input. This ensures a fully balanced signal path from the source to the output stage for optimal noise rejection and signal integrity.
The Super Rail topology uses higher voltage rails for the output stage than the actual output signal requires. This 'cushion' of voltage reduces distortion and improves dynamic impact, allowing the amplifier to respond to musical transients with greater speed and precision.
Each unit weighs 115 pounds and measures 23 inches in depth, so you will need a sturdy, deep equipment rack or dedicated amplifier stands. Additionally, ensure your rack has adequate ventilation space to accommodate the massive heatsinks and the heat generated during operation.
Still have a question?
Ask Hayley anything about this product before you decide.