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Dan D’Agostino PROGRESSION PREAMPLIFIER
Versatility, Performance, and Value
Designed to deliver the greatest value in genuine high-end audio, the Progression Preamplifier delivers versatility and performance. An optional, field-upgradeable Digital Streaming Module adds coaxial, Toslink, and USB inputs to the analog base model. 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 100 kHz.
Advanced Control
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 are unaffected by 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. Bluetooth extends the range of the remote control by a factor of five and eliminates line-of-sight limitations that are inherent in IR remote controls.
Separate for the Greatest Isolation
Housed in a separate chassis, the power supply of the Progression Preamplifier makes use of extensive electrical and magnetic shielding to keep radiated interference away from critical preamplifier circuits. Internal circuitry filters RF noise on the AC power line and compensates for asymmetric power waveforms and DC on the mains. A second DC output is included to power future Progression source components. Two analog meters, inspired by Swiss watch faces, function as signal meters during music playback. When volume is adjusted, the meter needles change to volume setting indicators. After adjustments are made, the meters revert back to signal meter operation. The meters also function as balance indicators when adjusting balance.
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Dan D’Agostino PROGRESSION PREAMPLIFIER
The Progression preamplifier blends reference-level transparency with boutique craftsmanship, delivering unusually detailed, musical playback. Reviewers from The Absolute Sound and Audiophilepure praise its superb resolution, dynamic control and a tonal sweetness often described as tube-like without tube drawbacks. Its balanced analog I/O, modern digital and networked inputs (USB-B, coax, optical, Ethernet, Wi‑Fi) and switchable gain make it flexible in complex systems. Internally it pairs low distortion circuitry and high SNR with a substantial chassis and refined finish, producing a quiet background and authoritative transient grip. While the optional phono stage requires careful matching and the system benefits from a subwoofer below ~40Hz, the Progression’s combination of transparency, build quality and connectivity positions it as a flagship choice for serious listeners seeking a single, integrated preamp solution.
Pros
- Exceptional transparency and fine-detail retrieval that reveals micro- and macro-dynamic information.
- Class-leading build quality and fit-and-finish with a substantial, refined chassis.
- Extensive, modern connectivity (balanced analog pairs plus USB, coax, optical, Ethernet and Wi‑Fi) for versatile system integration.
- Powerful dynamics and composure at high levels, supporting authoritative transient grip and wide dynamic swings.
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Cons
- Optional phono module can show elevated noise and limited cartridge compatibility—requires careful audition and matching.
- Very high, exclusive price positions the unit as a niche purchase for affluent listeners rather than mainstream value seekers.
Transparency
91/100
Reviewer praise for unprecedented detail (“detail at a level that, frankly, I have never heard…”) and the product's low distortion specs (<0.018%) and high unweighted SNR (>95 dB) support a very low-noise, highly transparent presentation. No explicit phrasing like 'dead quiet' or 'black background' is present, so score is high but stops short of the very top reference band.
Sound Quality
90/100
Dynamics
90/100
Reviewer comments about extraordinary detail and overall performance imply excellent micro- and macro-dynamic retrieval; the unit's switchable gain (+9.8 / +15.4 dB) and low distortion support strong dynamic control. No explicit wording about 'punch' or 'compression' issues appears, so dynamics are judged very strong.
Soundstage Imaging
90/100
High resolution and extreme detail cited in the review typically correlate with precise imaging and generous soundstage, and the reviewer states the unit is hard to outperform in stereo. While the review doesn't itemize staging metrics, the overall sonic praise supports an excellent spatial performance.
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Build Quality
95/100
Reviewer explicitly states 'fit and finish... is simply in a class of its own,' and the substantial chassis (40 lb) and premium finish options (Silver or Black) back up exceptional industrial design and construction. Given the maker's pedigree and the reviewer's strong praise, build and mechanical execution are rated at the top tier.
Features Connectivity
91/100
Extensive I/O: 4 pair balanced XLR inputs, 2 pair RCA inputs, 2 pair balanced XLR outputs plus multiple digital inputs (coax, optical, USB-B, Ethernet, Wi-Fi) indicate a fully featured, modern preamp with both analog and digital routing. This breadth of connectivity (balanced in/out, digital and networked inputs) places it in the fully-featured category.
Value for Money
83/100
Reviewer frames this as a product for a very small group with the means to enjoy the best and expresses envy of owners, but does not explicitly call it 'worth the price' — given the very high listed price ($90,000) the sentiment is that this is an exclusive, premium offering rather than a mainstream value proposition. Score reflects slight concern about affordability despite clear excellence.
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