CONSONANCE REFERENCE 6.6 25 WPC Reference Integrated Amp

Integrated Amplifier Opera Audio Consonance 6.6

this is a trade in in superb condition --re-tubed about 90 hrs on it

Being able to transmit the artistic content of the musical event as much as possible, trying to keep the original spirit of who interpreted this event, in order to deliver all the cultural flavours and artistic energy. An ambitious target, summarized at Opera Audio by an effective and straightforward slogan: "Simple, Human". To achieve this target they create products ranging from digital sources to amplification, both tube based and solid state, as well as electrostatic transducers.

This time we will review a tube amplifier from the Reference series, the Consonance 6.6, a 25W per channel unit using KT66 tubes. Belonging to the same product range, showing pretty similar constructive and aesthetic features, there are the Reference 5.0, a 9W per channel with a pair of 300B tubes, the Reference 5.5, which instead uses 4 300B (2 in parallel per each channel) delivering twice the power (18W), and the most powerful of the range, the Reference 8.8, a push-pull with 4 6550 and 50W output power.
The rear of the amplifier hosts the tubes

Look and technology
Opera Audio have thought to design an integrated amplifier around a product they regarded as particularly good from the musical point of view, the GEC KT66 replica tubes manufactured in China by Guiguang of Guangxi, implementing around them a push-pull circuitry. The driver stage uses a pair of Sovtek 12AX7LPS and a pair of 60s NEC 12AU7 NOS. The power supply is delivered by a toroidal transformer while the output transformers are the same ones used for the most prestigious range of the brand (Signature).

The technical specifications declared by the manufacturer are the following:

Nominal Output Power: 25 watt, RMS 1kHz
Total harmonic distortion: