Dutch high-end audio specialist Mola Mola has launched the Ossetra monoblock power amplifier, a groundbreaking evolution of its proprietary Trajectum Class D technology. Building on the acclaimed Kaluga design, the Ossetra represents a complete ground-up redesign aimed at delivering unprecedented levels of noise reduction, dynamic power, and load-driving capability in a remarkably compact chassis.
The Ossetra establishes itself as a flagship offering for discerning audiophiles seeking reference-grade performance without compromise. First announced in October 2025 and now shipping worldwide, the amplifier combines cutting-edge engineering with meticulous attention to every aspect of signal purity and power delivery.
Fully balanced, full-bridge output topology
At the core of the Ossetra is a fully balanced, full-bridge output topology that maintains balance from input to speaker terminals. This design not only simplifies power supply demands but also contributes to exceptional stability and low distortion. New discrete Class A gain stages provide the majority of the amplifier’s gain in a high-feedback architecture, enabling optimized noise and distortion performance while preserving wide open-loop bandwidth.
Upgraded power supply
The power supply has been comprehensively upgraded to support the full-bridge configuration, delivering substantial reductions in noise alongside enhanced continuous and dynamic output capabilities. Increased current delivery in the output stage allows the Ossetra to drive virtually any loudspeaker load with effortless authority.
Key specifications
- 350 watts into 8 ohms, 700 watts into 4 ohms, and 900 watts into 2 ohms
- Unweighted signal-to-noise ratio of 130 dB
- THD and IMD below 0.0002% across all frequencies and power levels
- Output impedance below 0.0015 ohms (damping factor >5000)
- Bandwidth exceeding 100 kHz for load-independent frequency response
- Input stage distortion below measurable thresholds (approximately -150 dB)
Inputs are switch-selectable between balanced and unbalanced, with a high 300 kOhm input impedance that presents an easy load to any preamplifier. Outputs feature two pairs of Furutech binding posts wired directly to the amplifier PCB with Kubala·Sosna cable for optimal bi-wiring. A 3.5mm trigger input facilitates system integration.
Compact footprint
Despite its substantial power reserves, the Ossetra maintains an elegantly compact footprint measuring 200mm wide × 110mm high × 335mm deep (including terminals) and weighing just 7kg per monoblock—making it ideal for space-conscious high-end installations without sacrificing performance.
Mola Mola describes the Ossetra as transcending traditional amplifier classes, with its minimal load dependency ensuring absolute consistency regardless of loudspeaker characteristics. The result is an amplifier that disappears into the system, revealing music with extraordinary clarity, speed, and dynamism.
The Mola Mola Ossetra monoblock power amplifiers are now available through authorized dealers worldwide. With its combination of innovative topology, vanishingly low distortion, and authoritative power delivery in an understated package, the Ossetra sets a compelling new benchmark in high-end amplification.
