If you wandered into the Mark Levinson room at this year’s High End Munich show, you didn’t just see new audio gear—you saw a full-on system built for listeners who take their music seriously. The new 600 Series includes three all-new components: the No. 626 preamplifier, the No. 632 stereo power amp, and the No. 631 monoblock. All three are designed, engineered, and assembled in the U.S., and they’ll be available worldwide later this year.
This isn’t an update just for the sake of keeping up appearances. Mark Levinson’s approach here leans into control, power, and clean signal paths. Each piece follows the brand’s “Pure Path” architecture—a fully discrete, dual-mono layout meant to keep the signal as isolated and uncolored as possible. Visually, the gear sticks to the company’s signature look, with thick aluminum casing, glass accents, and subtle red lighting tucked behind a minimalist front panel.
At the heart of the lineup is the No. 626 preamplifier. It’s a dual-monaural design, which essentially means left and right channels are physically and electrically separated. That’s a good thing when it comes to reducing crosstalk and keeping your music clean.
Inside, the No. 626 blends analog and digital features in a way that doesn’t require you to choose sides. It uses Mark Levinson’s Precision Link III DAC, which supports high-res audio up to 32-bit/384kHz PCM and native DSD. That covers just about anything you’d want to stream or play from a digital source. You’ve got six digital inputs, including USB-C, AES/EBU, two coaxial, and two optical.
Analog fans aren’t left out either. There are two balanced XLR and three single-ended RCA inputs, a built-in MM/MC phono stage for your turntable, and even a Class A headphone amp if you want to plug in for some private listening. Inside the chassis, the digital and analog sections are kept apart, and twin power supplies feed each channel independently. The whole unit sits on vibration-damped feet to help cut down on noise from external sources.
To go with the preamp, Mark Levinson is offering two amplifiers, depending on how you want to power your setup. The No. 632 is a stereo amp in a single chassis. It uses the same dual-mono layout as the preamp and is built around a Class A/AB circuit design with a big toroidal transformer at its core.
The No. 631 takes things further. It’s a monoblock amplifier, which means it powers a single speaker and is designed for people building high-performance two-channel systems with a dedicated amp for each side. It’s a big unit—just under 21 inches tall—and has the same build approach as the rest of the series: aluminum enclosure, glass top with red lighting, and internal structures that help isolate vibrations and minimize interference.
Both amps are meant to handle demanding speakers with ease while keeping distortion low. Whether you’re into orchestral music with lots of dynamic swings or bass-heavy electronic tracks, these amps are built to handle it without flinching.
While the 600 Series does have a modern, minimalist look, there’s a clear focus on practicality over flash. The enclosures are solid and simple. The red lighting isn’t for flair—it’s more about visual consistency and basic status indication. The glass panels on the front and top don’t just look nice—they’re part of a vibration-resistant design approach that runs through the entire lineup.
Feet are mechanically decoupled to reduce noise, internal power supplies are isolated, and the overall layout is meant to keep the audio signal as untouched as possible. It’s a “let the music do the talking” kind of design.
None of this gear is entry-level, and it’s not pretending to be. U.S. prices are as follows:
All three models are expected to begin shipping in the fourth quarter of 2025 through select Mark Levinson retailers.
The 600 Series made its official debut on May 15, 2025, during Harman’s “Summit of Sound” event at High End Munich. In addition to the product launch, attendees got to hear the gear in action during listening sessions and live demos. It was also Harman’s first major unveiling since acquiring Sound United—a move that puts brands like Marantz, Bowers & Wilkins, and Classé under the same umbrella as Mark Levinson.
