BOOSTER MONOBLOCK 2 x 80w parallel SE (40w pure-triode) in Class “A”: £24950/Pair

The MastersounD BOOSTER Monoblock epitomises the pinnacle of the company’s engineering expertise, offering an unrivalled combination of power, refinement, and musicality in a single-ended triode configuration.

At its core, the Booster Monoblock utilises the KT150 valve—renowned for its exceptional dynamic range and powerful output. In pure triode mode, the amplifier delivers 40W per channel, while switching to parallel single-ended mode, it can unleash 80W per channel; both modes are in pure Class “A”.

This versatility ensures the Booster excels across a wide range of listening preferences without sacrificing the purity of sound that MastersounD is known for. For the ultimate performance pairing, the Booster Monoblock is an ideal companion for the PHL5 or SPETTRO preamplifiers.

Handcrafted with the utmost attention to detail, the Booster Monoblock features a custom-designed output transformer optimised to maximise performance and efficiency. Led by the KT150, this amplifier's advanced valve complement achieves outstanding reliability and a captivating sonic experience, making it the perfect match for demanding loudspeakers.

The Booster's wide bandwidth (12Hz to 29kHz at 0 dB) and zero negative feedback ensure a pristine, distortion-free sound that captures the full audio spectrum. Its robust construction and the timeless warmth of valve-driven sound make it a standout component in any high-fidelity setup.

MastersounD’s commitment to precision engineering and tonal beauty shines through in the Booster Monoblock, which redefines what’s possible in valve-based audio.