EXIMUS S1

The EXIMUS S1 is a Stereo/Bridged mono block power amplifier with 125W/CH at 8 ohms of output.

The EXIMUS S1 is a stereo amplifier which can be used as a mono amplifier a flip of a switch.

Not only does it provide outstanding musical performance, but it also has a capacity enough to drive most of the high-end speakers in the market. When operating the unit as Bridged mode, it can be used as Monaural amplifier which can drive high-end speakers at 500W/CH at 8 Ohms of output.

To ensure top musical performance and longer life of operation, Eximus S1 is applied with the most advanced 250ASX2 ICEpower® Module from B&O. It is the result of consistent studies to secure the high musicality and its specialized designs of each protection circuit

In case you want to have more output power, you can prepare additional EXIMUS S1 and make it upgraded as a perfect Mono/Mono High-end system.

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STELLO Ai500

Preamplifier section

The Ai500's solid-state circuitry includes high-speed, low-noise transistors, and direct coupling throughout. Meticulous ground isolation techniques insure superb signal-to-noise ratio. Much care has been taken in the selection of components and the layout of circuitry for low noise, fast response time, and linear frequency response. We are confident that the Ai500 is among the very best preamplifiers on the market, at any price. Small-signal capacitors, where needed, are all 1% tolerance Wima brand resistors.

Power amplifier

Stello Ai500's output stage employs matched Hitachi MOSFET power transistors in Class AB push-pull configuration. Class AB offers the best trade-off between high performance and high efficiency. Input circuitry, gain stage, drive stage and bias net are April Music's unique proprietary circuitry, with optimum signal transfer and minimum phase shift.

D/A Converter

Digital signals received via COAX and OPTIC inputs are processed by the digital input receiving circuit. Likewise, the USB signal from a PC enters the USB DAC through the digital input receiving circuit.

Power supply

Separate power supplies deliver super-stable DC voltages to the preamplifier and DAC circuits. The power amp's supply has tremendous current reserves for lifelike dynamics. With an overlarge 800VA toroidal transformer, fast-recovery rectifiers, and an enormous capacitor bank (90,000uF), the Ai500 will never "run out of breath" even with the most demanding music and the most difficult loudspeaker loads.

Connectors

Ai500 features Neutrik balanced connectors, gold-plated RCA jacks, and gold-plated speaker terminal binding posts.

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