USA TUBE AUDIO - State of The Art
World Class High End Audio Showroom
8355 E Butherus - Scottsdale, Arizona 85260
1-800-676-1085

INTEGRATED AMPLIFIER: Legend KT66

New Audio Frontiers Legend KT66
Integrated Tube Amplifier
18+18 Glorious Watts RMS with Remote Control
Parallel Single Ended Tube Amplifier - Pure Class A
Zero Feedback


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World Class Audio from Italy, for over 30 years New Audio Frontiers has been delivering audio art to the World !


This integrated amplifier, the “Legend” arises as a reply to our desire of bringing to a new life, a legend: that of the KT66 tube.


This beam tetrode, in fact, has been used by the greatest brands of high-fidelity such as Quad, Leak and Radford. As opposed to the original projects in which the tube was used in push pull configuration, in this product, New Audio Frontiers decided for a Parallel Single Ended configuration. The circuit is arranged in a dual-mono configuration and presents a great attention with relation to the power supply. The anodic voltage is obtained with a pi-filter which allows reaching an optimal leveling and filtering of any spurious noise. A DC stabilized voltage is used for the filaments of the vacuum tubes, except for the four KT66. The power stage is composed, for each channel, by a couple of KT66, triode connected, in Parallel Single Ended configuration. In this way, we can obtain 18 watts per channel, that can easily drive any loudspeaker with a sensitivity of 90 dB Watt / m or above. The circuit with automatic biasing and with zero feedback allows us to reach an excellent, remarkable sound quality, also thanks to the high quality of our output transformers, fully hand-wound using copper Litz wire. The driver stage is composed of three 6922 tubes. The first 6922 is used as the first tube that has to raise the input level. The other two 6922 tubes, instead, constitute the most important part of the driver stage that has to drive the power tubes. To give a better dynamic impression, thanks to our experience, we introduced, instead of the normal resistive load, an inductive load on the anode to obtain a very natural and pleasant sound quality which shows a bold ability to reproduce the tri-dimensionality of the sound stage. A maximum linearity is achieved in order to get the best sonic transparency. The Legend integrated amplifier, due to the particular tubes and to its design choices, is able to produce a sound of great sweetness and at the same time deliver crystalline transparency.

Technical Characteristics:

Parallel Single Ended Tube Amplifier - Pure Class A, Zero Feedback
Remote Control
Output Tubes 4 x KT 66
Output Power 2 x 18 Watts RMS (THD=5% @8Ohm)
Frequency Response 20 Hz-30 KHz
Signal Noise Ratio 95dB
Output Impedance 4, 8 Ohms
Input 5 Line
Sensitivity / Input impedance 700mv /100K
Dimensions (w/h/d) 35 x 24 x 48 cm
Weight Approx. 45kg



USA TUBE AUDIO, Harwil Group
8355 E Butherus Dr. Suite 1
Scottsdale, Arizona 85260
1-800-676-1085 Sales x2
1-323-657-5993
52-55-8525-6102 Mexico
info@usatubeaudio.com
www.usatubeaudio.com

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