Dan D'Agostino Progression S350 Stereo Amplifier, Black - As Traded

Dan D'Agostino Progression S350 Stereo Amplifier, Black - As Traded

Condition: Used. Excellent, presents as new with no obvious marks or scratches

Includes: All Original Packaging, Power Cable 

Does not include amp isolation platform pictured

SN: PS0339P

Includes 3 month (90 day) warranty 

Overview

An endgame stereo power amplifier, the S350 sounds as good as it looks. With a beautiful VU meter gracing the chassis' front that could rival the finest Swiss watch face, that's saying a lot! 

This particular unit is in as-new condition and includes all original packaging.

Leveraging innovative Super Rail circuitry, the Progression S350 Stereo Amplifier exploits this unique technology delivering remarkable control and fidelity to any connected loudspeaker. 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 maximizes the performance of the output circuitry design itself. The result is improved dynamics, lower distortion, and a fierce grip of the speaker.

A graceful anodized Aluminium chassis houses a 2,000 VA power supply transformer coupled to nearly 100,000 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. Initially used in the Relentless Mono, the output power device provides the foundation for an upgraded output stage. This transistor extends high frequency response, increases power handling 50%, and features tighter tolerance gain matching between complementary NPN/PNP pairs.  

Specification

Signal-to-Noise Ratio  105 dB, unweighted / 75 dB A weighted
Finish  Silver or Black with Custom Finishes Available Upon Request
Total Harmonic Distortion  350W @ 8Ω .015% @ 1 kHz
Input Impedance  100 KΩ
Output Impedance  0.1Ω
Power  350 watts @ 8Ω 700 watts @ 4Ω 1,400 watts @ 2Ω
Distortion Inputs  2 balanced XLR
Dimensions  17.875 x 9.0 x 23.0 in / 45.4 x 22.9 x 58.4 cm
Weight  115lb / 52.2 kg