Synthesis
Soprano II
Synthesis introduces Soprano II tube integrated amplifier
Development of the Synthesis Soprano II followed feedback from owners of the original Soprano and the company's international partners. Its first public appearance is scheduled for Capital Audio Fest. The amplifier will be displayed in a classic anodized finish, with a Special Red Edition also scheduled to debut at the show.
Georg S. Kuklick
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Synthesis has announced a revised version of its Soprano tube integrated amplifier. The Synthesis Soprano II is rated at 12W RMS into 6 ohms, with worldwide availability through authorised dealers and distribution partners scheduled from February 2027.
The amplifier uses a Class A push-pull ultra-linear power stage with a 43% tap and two EL84/6BQ5 valves per channel. Its upgraded output transformers use grain-oriented silicon-steel laminations. The specified frequency response is 20Hz–20kHz, ±0.5dB, with total harmonic distortion specified at 1% at rated output and 1kHz.
The revised power supply incorporates an EI power transformer with M6 grain-oriented construction and ultra-low-ESR electrolytic capacitors. Low-dropout voltage regulators with a high power-supply rejection ratio supply the DAC and operational amplifiers. Digital conversion is handled by a 32-bit AKM DAC, with coaxial and optical S/PDIF inputs providing digital connectivity.
The Soprano II provides two line-level analogue inputs and an MM phono input with a 47k-ohm input impedance. This expanded analogue connectivity replaces the original Soprano's USB interface. The revised speaker terminals accept banana plugs, spades and thicker speaker cables. An included remote control operates volume and source selection.
The amplifier measures 300 × 265 × 140mm and weighs 8kg. Its specified power consumption is 80W.
Key specifications
Amplifier topology | Class A push-pull ultra-linear; 43% tap |
|---|---|
Output valves | Two EL84/6BQ5 per channel |
Rated output | 12W RMS into 6 ohms |
Frequency response | 20Hz–20kHz (±0.5dB) |
Total harmonic distortion | 1% at 12W (1kHz) |
DAC | 32-bit AKM |
Power-supply regulation | High-PSRR low-dropout regulators for DAC and operational amplifiers |
Power-supply capacitors | Ultra-low-ESR electrolytic capacitors |
Power transformer | EI transformer with M6 grain-oriented construction |
Output transformers | Grain-oriented silicon-steel laminations |
Digital inputs | Coaxial and optical S/PDIF |
Line inputs | Two line-level analogue inputs |
Sources
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