Dan D'Agostino - Progression S350 - Stereo Amplifier

The Dan D'Agostino Progression S350 Stereo Amplifier delivers reference-level power and control in a sophisticated two-channel platform derived from the company’s flagship amplifier technologies. Designed to provide exceptional loudspeaker authority while preserving musical nuance and transparency, the S350 combines immense current capability with refined Class AB operation.

At its core is Dan D'Agostino’s proprietary Super Rail circuitry, engineered to improve dynamic performance, transient precision, and overall amplifier efficiency. A massive 2,000VA transformer and nearly 100,000 microfarads of power supply capacitance provide the foundation for substantial power delivery and exceptional stability across difficult speaker loads.

The sculpted aluminum chassis incorporates large elliptical heatsinks milled from solid aluminum billets for superior thermal management and long-term reliability. Completing the design is the brand’s signature Swiss watch-inspired power meter, bringing distinctive visual elegance to a high-performance stereo amplifier built for uncompromising music systems.

Available in Silver or Black finishes

FEATURES

• Fully balanced stereo power amplifier design
• Dan D'Agostino Super Rail circuitry
• 350W per channel into 8 ohms
• 700W per channel into 4 ohms
• 1400W per channel into 2 ohms
• 2,000VA linear power supply transformer
• Nearly 100,000μF power supply capacitance
• Fully complementary driver stage architecture
• 48 output transistors total
• Balanced XLR stereo inputs
• Dual speaker binding posts per channel
• Precision-machined aluminum chassis
• Swiss watch-inspired analog power meter
• High-mass elliptical aluminum heatsinks
• Upgradeable to Progression M550 monoblock configuration
• Made in the USA

SPECIFICATIONS

Type: Stereo Power Amplifier
Amplifier Class: Class AB
Output Power (Per Channel): 350W @ 8Ω / 700W @ 4Ω / 1400W @ 2Ω
Frequency Response: 1Hz – 80kHz, -1dB / 20Hz – 20kHz, ±0.01dB
Signal-to-Noise Ratio: >75dB A-weighted / >105dB unweighted
Total Harmonic Distortion: 0.015% @ 1kHz, 350W @ 8Ω
Input Impedance: 100kΩ
Output Impedance: 0.1Ω
Inputs: 1 Pair Balanced XLR Stereo Inputs
Outputs: 2 Pairs Speaker Binding Posts
Dimensions (W × H × D): 17.875 × 9.0 × 23.0 in. (45.4 × 23.0 × 58.4 cm)
Weight: 115 lbs (52.2 kg)
Finishes: Silver or Black