Mola Mola Ossetra Power Amplifier: A New Benchmark in Class D Audio

Unveiling the Mola Mola Ossetra, a 350W class D powerhouse delivering pristine sound with groundbreaking Trajectum technology.

Introducing the Mola Mola Ossetra: Power Meets Precision

When it comes to high-end audio, Mola Mola Ossetra power amplifier never fails to impress, and their latest release, the Ossetra power amplifier, is no exception. As a devoted audiophile who’s chased that perfect balance of power and purity for years, I can tell you this amplifier is a game-changer. With 350 watts at 8 ohms packed into a sleek half-size chassis, the Ossetra pushes boundaries in sonic clarity and drive capability.

This isn’t just an upgrade; it’s a full redesign that amplifies Mola Mola’s unique Trajectum class D amplifier technology to new heights. From the ground up, every component has been scrutinized and refined to deliver a sound experience that’s both dynamic and delicately detailed.

A Symphony of Engineering: Power Supply and Output Stage

The heart of the Ossetra lies in its reinvented power supply, where Mola Mola has achieved stunning noise reduction alongside a powerhouse output that can handle even the most demanding speakers. Imagine a system that can roar at full power without losing a speck of clarity—that’s what this amplifier promises.

One of the standout features is the full-bridge output design, which creates a fully balanced signal path from input to output. This architecture not only enhances stability but also slashes distortion, allowing you to hear every whisper and roar in your music with equal fidelity.

Cutting-Edge Gain Stages and Impeccable Frequency Response

The Ossetra’s all-new discrete class A gain stages are crafted specifically to refine the gain structure, cutting noise and distortion to near imperceptible levels. The frequency response is a feat on its own—boasting a bandwidth exceeding 100 kHz, it stays perfectly flat across the audible spectrum. This means your sound won’t be colored or altered by your speakers’ load; what you play is what you get.

For true audiophiles, the input stage distortion is astonishingly low—around -150dB (~0.000003%), far below what most gear can measure. This ensures nothing but the purest signal reaches the power stage, keeping your favorite tunes crystal clear.

Mola Mola Ossetra Specifications at a Glance

• Output Power:
  • 350W @ 8Ω
  • 700W @ 4Ω
  • 900W @ 2Ω
• Gain: Switchable between 22dB and 28dB
• Signal-to-Noise Ratio (Unweighted): 130dB
• Distortion (THD, IMD): Less than 0.003% across all frequencies and power levels
• Input Impedance: 200kΩ
• Output Impedance: Under 0.002Ω (Damping Factor > 4000)
• Bandwidth: Greater than 100kHz
• Inputs/Outputs:
  • Balanced and unbalanced input (selectable)
  • Two pairs of Furutech binding posts
  • Biwired directly to the amplifier PCB with Kubala-Sosna cable
  • Trigger input (3.5 mm jack)
• Dimensions: 200 mm (W) × 110 mm (H) × 355 mm (D) — depth includes terminals
• Weight: 7 kg

Mark Your Calendars: World Premiere and Availability

The Ossetra made its grand debut on October 10, 2025, with eager audiophiles able to get their hands on one starting in early December. For anyone who’s passionate about their sound system, this amplifier is a worthy crown jewel.

Diving Deeper: The Technical Genius Behind Ossetra

The Ossetra represents a full rewrite of Mola Mola’s class D amplifier playbook. Each part of the amplifier, from the power supply to the feedback system, was reimagined to squeeze out every bit of possible performance.

Power Supply: Silence Meets Strength

Electronic regulations might set the bar for noise control, but Mola Mola has pushed well beyond compliance here. The power supply not only reduces noise further but also delivers improved continuous and dynamic power. Thanks to the full-bridge amplifier design, the power supply bears less stress, leading to remarkable stability and consistency.

Modulator and Feedback: The Heartbeat of Sound Control

With new discrete class A gain stages, the Ossetra achieves most of its gain through a high-bandwidth, high-feedback design. Each gain stage is tailored meticulously to handle specific roles within the feedback loop, thus optimizing noise and distortion. The outcome? An amplifier with razor-sharp control and ultra-refined audio reproduction.

Input Stage: Purity Without Compromise

The input stage is a marvel in itself—another discrete class A design aimed at delivering a high-impedance input that not only amplifies the signal but also guards against unwanted noise and DC offsets.

Notably, the input is DC coupled, avoiding capacitors in the signal path to reduce coloration. Borrowing technology from the acclaimed Makua preamplifier, minor DC offsets are dynamically corrected, while larger offsets trigger a safety capacitor for seamless compatibility with other audio equipment.

A new addition is the shunt voltage regulators, which provide stellar noise rejection and low output impedance without the usual complexity. These regulators constantly draw current and cleverly manage it to keep AC currents localized, resulting in more consistent, coloration-free sound.

Why the Ossetra Stands Out

As someone who’s spent countless hours listening to various setups, the Ossetra's blend of raw power and meticulous engineering is a rare find. It’s not just about loudness; it’s about delivering that power with delicacy and precision. Whether you’re thumping out bass-heavy tracks or savoring the subtle nuances of a quiet jazz ballad, this amplifier handles it all with grace.

Final Thoughts: Is the Ossetra for You?

If you’re chasing an amplifier that combines cutting-edge class D technology with audiophile-grade fidelity and build, the Mola Mola Ossetra power amplifier should be on your radar. It’s a testament to what happens when passion meets engineering excellence — power that’s not just heard, but felt and experienced.

FAQ

• What does the full-bridge output design mean for sound quality?
  It ensures a fully balanced signal path from input to output, reducing distortion and improving stability for cleaner sound.
• Can the Ossetra drive low-impedance speakers effectively?
  Absolutely. With output power scaling up to 900W at 2Ω and a high current capability, it can handle demanding speaker loads effortlessly.
• What makes the input stage special compared to other amplifiers?
  The DC-coupled discrete class A input stage minimizes signal degradation by avoiding capacitors and dynamically corrects DC offsets for pristine audio.
• How does the power supply contribute to performance?
  It reduces noise beyond standard regulations and delivers enhanced continuous and dynamic power while improving overall amplifier stability.
• Is the Ossetra compatible with biwiring setups?
  Yes, it includes two pairs of Furutech binding posts and is biwired directly to the amplifier PCB using high-quality Kubala-Sosna cables.

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