The Dan D'Agostino Progression Preamplifier serves as the commanding control center for high-performance two-channel audio systems. Available through Trimira Audio, Brisbane’s premier destination for ultra-high-end audio, this preamplifier marries traditional analog purity with forward-thinking digital capability, offering exceptional resolution, dynamic openness, and effortless system integration.
Designed with a discrete, fully complementary, and balanced analog signal path from input to output, the Progression Preamplifier operates without global negative feedback. This architecture ensures vanishingly low open-loop distortion and an ultra-wide bandwidth that conveys music with raw, unconstrained authenticity.
Key Features & Technological Innovations
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Zero Negative Feedback Topology: Operates without any negative feedback loop, maintaining extreme signal purity, instantaneous transient speed, and exceptional spatial imaging.
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Isolated Two-Chassis Power Supply: Housed in a dedicated base unit below the main audio chassis, the power supply features extensive electrical and magnetic shielding. RF filtering on the AC mains prevents interference from entering the sensitive audio circuitry.
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Dual-Function Swiss Watch-Inspired Meters: Twin front-panel analog meters function as VU level indicators during music playback. When adjusting volume or balance, the needles seamlessly transform into precision level and balance tracking indicators before returning to signal level display.
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Stepped Balanced Resistor Ladder Volume Control: Volume adjustments are handled via high-linearity solid-state relays and discrete precision resistors, ensuring consistent frequency response, phase alignment, and transient clarity at all volume levels.
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Optional Digital Streaming Module (DSM): Field-upgradeable module adding SPDIF coaxial, Toslink optical, USB, Ethernet, and Wi-Fi inputs. Powered by a fully differential DAC supporting PCM up to 24-bit/384 kHz and DSD up to 4x DSD (11.2 MHz).
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Extended-Range Bluetooth Remote: Includes a Bluetooth-powered remote control that eliminates traditional infrared line-of-sight limitations while expanding operating range by 5x.
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Dual Independent Balanced Outputs: Features two sets of XLR outputs that can be operated individually or simultaneously—ideal for bi-amping setups or integrating active subwoofers.
Technical Specifications
| Feature / Metric |
Specification |
| Frequency Response |
0.1 Hz – 1 MHz (-3 dB) / 20 Hz – 80 kHz (±0.5 dB) |
| Distortion (THD+N) |
< 0.018% (20 Hz – 20 kHz) |
| Signal-to-Noise Ratio |
> 95 dB (unweighted) / > 88 dB (A-weighted) |
| Gain |
+9.8 dB or +15.4 dB (switchable) |
| Analog Inputs |
4 Pairs Balanced XLR / 2 Pairs Single-Ended RCA |
| Analog Outputs |
2 Pairs Balanced XLR (Individually or Simultaneously Active) |
| Digital Inputs (Optional DSM) |
1 Coaxial SPDIF, 1 Optical Toslink, 1 USB-B, RJ45 Ethernet, Wi-Fi |
| Digital Resolution (Optional DSM) |
PCM up to 24-bit/384 kHz, DSD up to DSD256 (11.2 MHz) |
| Preamplifier Dimensions (W x H x D) |
18.0 x 4.3 x 12.0 in / 45.0 x 10.8 x 30.0 cm |
| Power Supply Dimensions (W x H x D) |
11.0 x 3.0 x 8.0 in / 27.5 x 7.5 x 20.0 cm |
| Total Weight (Main + PSU) |
40 lbs / 18.0 kg |
| Finishes Available |
Anodized Silver or Stealth Black |
Experience the Progression Preamplifier at Trimira Audio
Connect with the audio specialists at Trimira Audio to explore digital integration options, evaluate system synergy with Progression series amplifiers, or schedule a private audition.
