Octave V 16 Single Ended Integrated Headphone Amplifier

The Octave V 16 Single Ended is Octave’s first-ever single-ended integrated amplifier, created to bring the natural tonal beauty and harmonic richness of Class A single-ended design into a modern, reliable, and flexible form. Traditionally, single-ended amplifiers are admired for their lifelike midrange and smooth sound, but they suffer from limitations such as bass and treble roll-off, excess heat, and higher noise. Through years of development and the application of proprietary innovations, Octave has solved these challenges to deliver an uncompromising Class A design suitable for both loudspeakers and headphones.

At its core, the V 16 Single Ended employs a KT 120 pentode tube operated in a triode circuit, offering high performance, long life, and wide tube compatibility (including KT 150, KT 88, and 6550). Its specially developed magnetic-field compensated output transformer ensures bass extension down to 10 Hz, while optimized driver stages and feedback extend bandwidth to an unprecedented 100 kHz. Intelligent transformer placement and advanced stabilization circuits reduce noise to an ultra-low –110 dB, achieving near-silent operation for headphones and speakers alike.

Octave further enhances the single-ended concept with Dynamic Class A Control, a unique adaptive three-step Class A mode that adjusts bias automatically to match the load. This reduces heat, extends tube life, and maintains full performance while operating efficiently. Eco Mode lowers idle current during pauses in playback, further improving energy efficiency and longevity.

Alongside its technical innovations, the V 16 Single Ended is fully featured with balanced input, optional MM/MC phono board, soft-start power management, HT bypass, pre-out, bias monitoring, and compatibility with Octave’s Black Box and Super Black Box power supply upgrades.

Delivering deep, linear bass, silky-smooth highs, and an ultra-transparent midrange, the Octave V 16 Single Ended sets a new benchmark for single-ended Class A amplification. Compact yet powerful, quiet yet expressive, it is equally inspiring with high-efficiency loudspeakers and the finest headphones—a modern classic that embodies Octave’s 30-year pursuit of musical purity and engineering excellence.