JE Audio

JE Audio VL20 Pre Amplifier - Kronos AV - Interest Free Credit 0% - FREE Shipping
£2,499.00

Financed from £124.95 pm *

The VL20 vacuum tube line amplifier has employed a wideband balanced amplifying topology. The balanced operation will effectively cancel external electromagnetic noise picked up by audio cables. With the additional enhanced linearity offering by the wideband balanced amplifying topology, the sonic result is an improved sound quality with three-dimensional images in a natural acoustic landscape. Single-ended input signal via the RCA socket can also be benefited by the balanced operation.Conventional single-ended line amplifier usually consists of two to three amplifying stages in cascading configuration. This is shown in the diagram below. Since each stage will contribute phase shift, noise and distortion, global negative feedback is needed to improve the overall performance of the line amplifier. Because of the single-ended structure, the amplifier cannot effectively cancel out the electromagnetic noise picked up by audio cables.The VL20 uses two 6H30 vacuum tubes per channel. Since each 6H30 consists of two triodes (dual...
The VL20 vacuum tube line amplifier has employed a wideband balanced amplifying topology. The balanced operation will effectively cancel external...
JE Audio VL10.1 Pre Amplifier - Kronos AV - Interest Free Credit 0% - FREE Shipping
£4,499.00

Financed from £224.95 pm *

The VL10.1 is built on top of the foundation from our popular linestage preamplifier VL10 with improved performances. The improvements include the use of wideband MOSFET current source, precision DC regulation power supply, capacitors and resistors. In addition, with the use of the patented Wideband Unity Balanced Amplifier (WUBA) design, the sonic result is an improved sound quality with three-dimensional images in a natural acoustic landscape. Conventional single-ended line amplifier usually consists of two to three amplifier stages in cascading configuration. This is shown in the diagram below. Since each stage will contribute phase shift, noise and distortion, global negative feedback is needed to improve the overall performance of the line amplifier. Because of the single-ended structure, the amplifier cannot effectively cancel out the electromagnetic noise picked up by audio cables.The VL10.1 has three 6H30 vacuum tubes per channel. Since each 6H30 consists of two triodes (dual triodes), there are...
The VL10.1 is built on top of the foundation from our popular linestage preamplifier VL10 with improved performances. The improvements...
JE Audio Reference 1 Tube Line Stage Preamplifier - Kronos AV - Interest Free Credit 0% - FREE Shipping
£7,499.00

Financed from £374.95 pm *

Reference 1 is a vacuum tube line stage amplifier that employs a wideband balanced amplifying topology. A balanced operation will effectively cancel external electro-magnetic noise picked up by audio cables. With the additional enhanced linearity offering by the wideband balanced amplifying topology, the sonic result is an improved sound quality with three-dimensional images in a natural acoustic landscape. Reference 1 line stage amplifier uses a proprietary design digital potentiometer to control the volume. The digital potentiometer is designed in such a way that it only attenuates the incoming signals but does not affect the signal integrity. Reference 1 employs two 6H30 vacuum tubes per channel. Since each 6H30 consists of twin triodes, there are four triodes used per channel. Reference 1 uses a total of four 6H30 vacuum tubes and hence, a total of eight triodes are employed. Reference 1 is a single-stage wideband balanced amplifier design. Because of employing...
Reference 1 is a vacuum tube line stage amplifier that employs a wideband balanced amplifying topology. A balanced operation will...
JE Audio Dyad S400 Hybrid Power Amplifier - Kronos AV - Interest Free Credit 0% - FREE Shipping
£13,000.00

Financed from £650.00 pm *

Dyad S400 is a state-of-the-art true fully balanced hybrid power amplifier in which voltage amplification is done by all vacuum tubes. S400 employs the patented Dual Balanced Feedback Topology (DBFT) and proprietary high current buffer amplifier (HCBA). The design of S400 is highlighted in the following diagram.Since there are two out-of-phase signals in a fully balanced amplifier, two HCBAs are used for the output stage. Each HCBA has the following properties:* Unity voltage gain* High speed and high current gain* High power capacity* Input and output are maintained at DC ground level automatically* Protect output for over current, output DC offset and overheat* Stable with and without global feedback applying to itOne HCBA amplifies signal of one phase and the other HCBA amplifies signal of the opposite phase. Since the input stage and second stage use all vacuum tubes for signal amplification, and the HCBAs have unity voltage gain, the...
Dyad S400 is a state-of-the-art true fully balanced hybrid power amplifier in which voltage amplification is done by all vacuum...