No. Technically, a modern $200 DAC measures infinitely better. Lower noise, lower distortion, higher resolution.
This is where the D-1 loses some listeners. It is not "airy." It rolls off the extreme high frequencies gently. If you are used to the hyper-detailed sound of MQA or DSD, the D-1 will sound dark . However, that darkness translates to zero fatigue. You can listen to the D-1 for 14 hours straight without a headache.
This chip is a 16-bit monster. In an era where 1-bit Bitstream DACs were becoming cheap and plentiful (promising "smoothness"), Marantz stuck to multi-bit. The TDA1541 S1 offers vanishingly low distortion (-95dB) and incredible linearity. Purists argue that no modern Delta-Sigma chip has ever matched the organic "flow" of this chip. Marantz went overkill. Most DACs of the era used one chip per channel. The Project D-1 uses two TDA1541 S1 chips per channel (four total) in a dual-differential configuration. This reduces noise and increases dynamic range. It was an expensive, space-consuming design choice that few manufacturers could afford. 3. The Power Supply Look at the rear of the D-1. You’ll see two IEC power cords. Yes, two. One power supply is dedicated solely to the digital circuitry and the data processing. The second isolated supply feeds the analog output stage. This galvanic isolation was decades ahead of the curve, preventing high-frequency digital noise from bleeding into the delicate analog signal. 4. The Analog Stage (HDAM Precursor) The output stage uses discrete components rather than op-amps. This was a precursor to Marantz’s later famous HDAM (Hyper Dynamic Amplifier Module) technology. The D-1 uses a pure Class A discrete buffer to drive the output. This is why the D-1 runs hot—comfortably warm to the touch even when idle. The Sound: "Musical" vs. "Analytical" Audio forums are split on the Marantz Project D-1 . The debate usually revolves around one question: Is it colored or is it right? marantz project d-1
For most consumers, Marantz evokes images of the warm, blue-lit faceplates of the 1970s—the legendary Model 7 preamp or the 2270 receiver. However, between 1988 and the early 2000s, Marantz embarked on a radical journey under the banner of "Reference Series" and "Project" models. The (often stylized as Project D-1) was the company’s flagship Digital-to-Analog converter, designed to stand toe-to-toe with the best that Japan and Europe had to offer.
Unlike clinical modern DACs (think ESS Sabre chips), the D-1 does not highlight the leading edge of transients. Cymbals don't "sizzle" with metallic grain; they breathe . The midrange is glorious. Vocals—especially Nora Jones, Frank Sinatra, or even vintage Miles Davis—have a palpability that modern $5,000 DACs often lack. This is where the D-1 loses some listeners
It represents a moment in time when a mainstream corporation (Marantz/Philips) allowed engineers to build something financially insane: Four TDA1541 Double Crown chips, dual power supplies, and a discrete Class A output stage, all bolted into a non-magnetic chassis.
In the pantheon of high-end digital audio, certain model numbers trigger instant reverence: the Philips LHH-1000, the Mark Levinson No. 30, and the dCS Elgar. Yet, lurking in the shadows of these giants is a piece of Japanese engineering that remains, to this day, one of the most controversial and brilliant DACs ever produced: the Marantz Project D-1 . However, that darkness translates to zero fatigue
In a world of disposable streaming dongles and 30-day upgrade cycles, the is a reminder that digital music, when treated with respect, can have a soul. If you find one, and you have the patience to manage its quirks, you will be rewarded with a sound that makes you forget about the gear and fall back in love with the music.