Burmester Reference Line - 259 Stereo Power Amplifier

The New Reference Line

Inspired by iconic milestones and driven by a visionary spirit, Burmester combines over four decades of audiophile expertise with masterful craftsmanship. This claim results in uncompromising perfection – a constant striving for new standards and pushing the boundaries of what is possible. A prime example of this commitment is the new Reference Line. Its sound is moving – with newly defined sophistication in depth, clarity and spatial presence.

The 259 Power Amplifier

Performance without limits – the 259 impresses with enormous power reserves, a wide dynamic range and precise, deep bass. Its clarity and attention to detail set new standards. A new cooling concept optimizes heat dissipation, while intuitive controls and clear connection options provide flexible, user-friendly operation.

The 259 allows for higher (pulsed) output power when it matters most, while meeting the latest (EU) regulations for efficient power management. 

Last amp standing

Stable output with even the most demanding speakers.

Sound quality

Lowest noise floor possible. Wide dynamic range. Tight deep bass. Clarity without fatigue or brightness.

Usability

Easy to use with simple, intuitive controls and connectivity.

Designability

The 259 embodies the design concept of the new Reference Line in every component. It combines an

element of tradition with modern minimalist design features that allow for careful thermal management.

Thermal management for longevity 

Silent, 100% passive cooling with no moving parts 

Airflow optimized using self-generated natural convection only 

By design: Ideal heat distribution through solid copper elements, perfectly homogeneous temperature conditions for all audio components 

Power delivery for uncompromised sound 

Transparent output relay technology based on Burmester‘s most advanced power amp models, raising the bar even higher 

Extremely high damping factor of over 5000 for optimal output control 

Massive copper output bars - enough to jumpstart a Boeing (possibly) 

Press-fit technology for minimal resistance from power supply to speaker - less power dissipation, more power to the sound 

Technical highlights for low interference 

Elaborate and unique internal grounding concept, equally careful treatment of audio signal and ground without exception 

Best-in-class damping materials for fully shielded power transformer • Fully balanced audio topology and extensive use of matched parts 

Audio first, digital second - strict separation through separate circuit boards: only analog circuits on analog circuit boards! 

And more 

Elegant: Touch-sensitive power switch 

Safe: Short-circuit detection with microsecond emergency shutdown for improved speaker protection 

Direct: Fault detection and memory for improved serviceability 

Massive: Ready for mono operation for ultimate amp power

Continuous output power at 4Ω Mono 1500W, Stereo 500W

Pulsed output power at 4Ω Mono 2100W, Stereo 600W

Output capability 12 output transistor pairs per channel,

Reactive power supply,

Active self-protection of the output stage under high load,

Up to 100% more output current for demanding speakers

Loading capability Limited only by output current, Stable and safe under all conditions

Linearity (Measuring THD+N at 1kHz / 50W / 4Ω): 0.0005% Temperature-invariant

Audible output noise (20Hz to 20kHz, unweighted): 20µV

SINAD at 5W output power: 105dB

Power bandwidth at 4Ω: 400kHz