As known single ended triode (SET) based amplifiers have a unique sound and so do push pull directly heated triode (DHT) amplifiers like the Cyber-10 signature. In some applications 8 watts of DHT will sound more powerful and controlled than 8 watts of SET. The heaters use AC throughout the design due to the sonic advantages over DC and at 2.5V on the power tubes hum is not a problem. The unit is build with point-to-point wiring, featuring a ready made thick-trace PCB for the choke filtered power supply. This configuration allows Cyber-10 signature sounding more close with well designed SET amps and with much dynamic bass performance as well.

As a push-pull 2A3 valve integrated, Cyber-10 Signature can't deliver a lot of raw power but it makes up for this in myriad ways. With suitable speakers, the Cyber-10 Signature is a gutsy integrated amplifier with huge dynamics. It sounds muscular, detailed, and smooth. The Cyber-10 Signature handled vocals with noteworthy clarity and intelligibility. If you need even more power, Opera Audio offers the Cyber-100S Signature integrated amp, which uses 300B triodes to produce 22Wpc.

Opera Audio is a Chinese firm that produces several lines of hi-fi equipment: a budget line called the M-Value series, a mid-level line called the Cyber Signature series, and a high-end line called the Reference Series. There is also a super-high-end Droplet series consisting of a turntable and a CD player, whose striking designs could easily incite severe cases of audiophile lust.
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