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Dan D’Agostino Progression Preamplifier

Updated: Oct 17, 2023

Performance and Flexibility The Progression Preamplifier adds new features previously not included in a D’Agostino preamplifier. Most noticeably, the Progression Preamplifier features an optional digital module. The digital module adds coaxial, Toslink, and USB inputs to the analog base model. Field upgradeable, the optional digital module can be added at any time. A fully differential DAC handles PCM signals up to 24 bit/384 KHz and DSD signals up to 4xDSD (11.2 MHz). This digital module feeds a discrete, fully complementary, and balanced analog signal path from input to output. Negative feedback is not used anywhere in the Progression Preamplifier, nor is it necessary. Open-loop distortion is less than < 0.006% and the open-loop bandwidth extends to over 100KHz.

Advanced Control Also new is the Bluetooth technology featured in the included remote control. The Bluetooth backbone extends the range of the remote by a factor of five and eliminates line-of-sight limitations that are inherent in IR remote controls. The volume control is realized with a stepped balanced resistor ladder, using high-linearity solid-state relays and discrete precision resistors. The bandwidth and transient response of the preamplifier circuitry is unaffected by the volume setting. The Progression Preamplifier has two independent outputs that can be individually operated or used simultaneously for driving a second amplifier in a subwoofer-based system.


Frequency Response 0.1 Hz to 1 MHz, -3dB / 20 Hz to 80 kHz, +/-0.5dB

Signal-to-Noise Ratio -95 dB, unweighted

Gain +8 or +14 dB, Switchable

Finish Silver or Black with Custom Finishes Available Upon Request

Distortion < 0.018% THD+N, 20 Hz to 20kHz

Outputs 2 stereo pairs of balanced XLR

Power Consumption (at Standby) < 40W

Analog Inputs 4 stereo pairs of balanced XLR, 2 stereo pairs of single-ended RCA

Digital Inputs (w/DAC Module Installed) 1 USB Type A, 1 Optical Toslink, 1 SPDIF Coaxial

Control RS-232, 2 12V trigger outputs

Product Class Progression

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