D’Agostino Progression Stereo

Inspired by the elegant faces of classic Swiss watches, the Progression Stereo is fronted by an exposed movement power mete

In-Store Only: This product can only be bought in store.

SKU: D'Agostino Progression Stereo Categories: , Tags: , ,

Progression Stereo

Discontinued replaced by Progression S350

The Progression Stereo Amplifier extends the Progression family with a potent stereo amplifier.

Progression Stereo

Leveraging their innovative Super Rail circuitry, first unveiled in the Progression Mono, the Progression Stereo amplifier exploits this unique technology delivering remarkable control and fidelity to any connected loudspeaker.

Every amplifier employs a voltage rail, actually two, a positive one and its companion negative partner.

Voltage rails support the delivery of power to the speaker.

The music signal swings between these two rails but due to natural loss, the musical signal never reaches the output rails’ full capability.

Dandagastino’s Super Rail overcomes this limitation.

Borrowing the idea of a turbo in a car engine, the Super Rail employs higher voltage rails in the sections prior to the output stage.

This voltage “boost” allows the musical signal to exploit the full capability of the output voltage rails.

Extending the musical signal swing closer to the output rails maximises the performance of the output circuitry design itself.

The result is improved dynamics, lower distortion, and a fierce grip of the speaker.

Abundant power is required for realistic sound quality and is a cornerstone of Dan D’Agostino Master Audio Systems’ amplifier design.

The Progression Stereo continues this practice.

A graceful anodized Aluminum chassis houses a nearly 3,000 VA power supply transformer coupled to 400,000 microfarads of power supply storage capacitance.

Paired to this foundation is a fully complementary driver stage, and output circuitry outfitted with 48 power transistors – 24 each for the left and right channels generating an imposing output.

Progression silver

The Progression Stereo is conservatively rated at 300 Watts into 8 Ohms and delivers 600 Watts into 4 Ohms, and properly doubles its output again into 2 Ohms, with a 1,200 Watt power output.

The essence of live music, dynamic contrasts, are faithfully reproduced with leading edge transients spectacularly depicted.

Inspired by the elegant faces of classic Swiss watches, the Progression Stereo is fronted by an exposed movement power meter.

Featuring two 90-degree needle swing arms, a high-speed ballistic circuit enhances the meter’s responsiveness.

Longer swing arms improve readability across the amplifier’s entire output range.

The venturi style heatsink design, premiered in the Momentum amplifiers, has been adapted to the cooling needs of the Progression Stereo amplifier.

Starting with a 22-kilogram aluminum slab, each heatsink is milled to form the most efficient cooling element possible.

Startling considering its power output, the Progression Stereo amplifier runs surprisingly cool due to its innovative heatsink design.

Standard finishes include silver and black with custom painted finishes available on request.

Combining innovative circuitry and significant power, the Progression Stereo amplifier provides loudspeakers the control element they need to achieve their full design expression.

Specifications Progression Stereo

Specifications Progression Stereo

Finish Silver
Custom Finishes Available Upon Request
Power 300 watts @ 8Ω
600 watts @ 4Ω
1,200 watts @ 2Ω
Frequency Response 1 Hz to 200 kHz, -1 dB
20Hz to 20 kHz, ±0.1 dB
Distortion 300 watts @ 8Ω
0.15% @ 1 kHz
Signal-to-Noise Ratio 105 dB, unweighted
Inputs 2 balanced XLR
Input Impedance 100 KΩ
Output Impedance 0.15Ω
Dimensions 18 x 23 x 9 in
45.7 x 58.4 x 22.9 cm
Weight 125 lbs.
57 kg

Combine with the Progression Preamplifier for a perfect combination

Additional information


Black, Silver


Dan D'Agostino

Dan D'Agostino


No name is more closely associated with high-end audio amplifiers than that of Dan D’Agostino. During his career of more than 35 years, D’Agostino pioneered countless advances in the design of amplifiers, preamplifiers, CD players, and surround-sound processors. He is known as the audio industry’s most passionate promoter of high-quality, high-powered amplification. Makers of the world’s finest loudspeakers rely on D’Agostino-designed amplifiers for their most important demonstrations. Dan D’Agostino was founder and chief engineer of Krell Industries through 2009. Since the inception of DDMAS in 2011, energised with a new organisation and new state-of-the-art designs, the products that bear his name not only achieve new levels of sound quality, they also look like nothing else in the industry. The new designs combine an elegant aesthetic flair coupled to inventive circuit topologies and innovative materials. Starting with the Momentum Mono amplifier, the D’Agostino product line now extends upwards to the awe inspiring Relentless Mono amplifier and outwards to the new Progression Integrated amplifier. The Relentless Mono Amplifier is an all-out assault on the amplifier category. Capable of driving any speaker to its fullest capability, the extraordinary power output of the Relentless Mono is only matched by its sublime low volume sound quality. The Progression Integrated amplifier connects the high-performance core of D’Agostino products to the exciting world of streaming audio with Tidal, Quobuz, and Spotify services as standard offerings. They are proud to say the Progression series components are hand built in the USA, by their team of craftsmen and technicians, in their Arizona facility. As impressive as these designs may sound on paper, the only way you can truly appreciate their warmth, detail and unmatched beauty is to experience them

You may also like…