US Amps AX User Manual download pdf (Page 18)

VTCSD “follows” the high voltage tube signal STRAIGHT INTO THE SPEAKERS,

adding only current in a form of “amplifier power steering” — free from voltage gain

or negative amplifier feedback!

Vaccum tubes are renowned for their high dynamic range and smooth emphasis

of even-order harmonics. The transformer-less VTCSD circuit brings out hidden

qualities of the vacuum tubes, including excellent frequency response, smooth

“clipping” and high signal-to-noise ratio.

VTCSD divides audio signal amplification in two separate areas, voltage and

current. By starting with the vacuum tube as a source of high voltage(vacuum

tubes operate at four times the voltage of transistors), VTCSD adds a second

solid-state “amperage amplifier.” The “amperage amplifier” is a null-gain circuit

driven by “current syncs” that mirror the voltage signal and provide “torque” to the

speakers in perfect synchronization with the voltage content, that neither distorts or

colors the original tube sound!

The result are astonishing. All of the intensity, transience, and frequency

response of the vacuum tube, which can operate at MUCH higher output voltage

than audio transistors.

VTCSD (continued)

Benefis of Class “DE”

Combines class “D” attributes with the versatility and practical

fidelity of class “AB” designs

Allows for 90% efficiency under extreme circumstances that turn

other digital amplifiers to toast

Represents the best power output-to-current consumption

•

U.S.Amps continues to push the technological envelope with the introduction

of two new digital models that combine the attributes of “D” lass amplifiers

with the versatility and practical fidelity usualyy expericenced only with

standard Class “AB” designs. Thsi bold leap forward in digital technology

allows for 90% effieciency under extreme dircumstances that turn other

digital amplifiers to toast. As cars become more and more energy efficient

and provide less available battery power, Class “DE” represents the best

power output-to-current consumption available on the market today!

1 2 ... 13 14 15 16 17 18 19 20

No comments

US Amps AX User Manual Page 18