Announcing the model i34 integrated amplifier
Eight months after building and testing the pre-release unit we are announcing a new unit in the Vista-Audio lineup: model i34 integrated amplifier.
Why the delay? Even though I was happy with the original results, there were three reasons for prolonged development:
1. Success of the model i84
dictated that we maintain sonic signature, clarity and speaker control. "Tubiness" sometimes typical for EL34 amplifiers was not acceptable.
2. Pre-release unit has incredible midrange - on par with the best of SE amplifiers - we wanted to preserve this ear candy.
3. Transformer steel and copper went up in price, significantly, and our transformer costs skyrocketed. Now that we had to pay more for quality transformers I insisted on getting the best results that we can. Three generations of toroidal transformers later Trafomatic
came up with a design that we are extremely pleased with. Here is the newest member of the Vista-Audio family, premiering on AudioCircle:
Stereo Push-Pull Integrated Amplifier
Bandwidth: 10Hz-35kHz (at full power)
Inputs: CD, Tuner, Aux.
Outputs: 4 and 8 ohms
Input sensitivity: 2Vrms
Tubes: 2 x ECC832, 4 x E34L
Gold Plated Terminals
Stainless Steel Chassis
Measured THD on the test sample is below 0.1% (actual measured 0.06% @ 1W/1kHz
), but will be specified as 0.2% to account for possible variations in tube characteristics (we use low negative feedback, resulting in tubes characteristics having more effect on the final result).
Transient response of the amplifier is exceptional, I will post some oscillograms soon.