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The Momentum S250 MvX stereo amplifier delivers the extraordinary sound quality of the Momentum M400 MvX monoblock in a more affordable stereo design. The circuit topology and construction of the stereo amplifier mirror those of the monoblock, using the same ultra-efficient copper heat sinks with venturi cooling, the same 1% metal-film resistors, the same 69 MHz output transistors and the same fully complementary balanced configuration. The result is audio fidelity equaled by no other amplifier—except, of course, the Momentum M400 MxV monoblock itself. The leading compliment to the Momentum S250 MvX Stereo is the Momentum HD Preamplifier, creating a harmony worthy of any aficionado.  

The Momentum S250 MxV models feature techniques and topologies initially developed and implemented in the Relentless Mono Amplifier. This fullest expression of the Momentum circuitry is reflected in the new model name, MxV. Those with a physics background will recognize that MxV or Mass times Velocity is the equation for Momentum. 

THE PROGRESSION MONO DESIGN combines two normally exclusive traits—remarkable power output and exquisite musical finesse. Power is essential to realistic sound reproduction. The Progression mono amplifier is the largest and most powerful the company has made, delivering 500 watts into 8 ohms, doubling to 1,000 watts into 4 ohms and doubling again to 2,000 watts into 2 ohms. Of course, it will play loud, but it is speaker driver control that is the most important aspect of this awesome power capability.

The Progression Stereo Amplifier extends the Progression family with a potent stereo amplifier. Leveraging our innovative Super Rail circuitry, first unveiled in the Progression Mono, the Progression Stereo amplifier exploits this unique technology delivering remarkable control and fidelity to any connected loudspeaker.

With the final darTZeel NHB-458, it sets a new standard: after nine years of constant research and continuous development, this amplifier, not only it owns all the qualities of the NHB-108, already acclaimed by the whole audiophile world, but it goes further in revealing a very special machine in every respect.

The 800 series of amplifiers from EAR has received widespread and consistent acclaim from users and reviewers the world over. However, feedback from some quarters suggested that there was a need for an amplifier with similar sonic prowess but just a little more power.

Tim de Paravicini designed the EAR 509s with industrial grade components for reliability and performance. Built to handle the demands of professional audio environments, we added the option for it to be equipped with balanced inputs for those -professional applications.

The JA80 is a power amplifier working in pure class A. It is the first amplifier created by the JADIS in 1983; it has been upgraded several times but remains the flagship of the brand.

These amplifiers work in "push-pull" configuration, triples load and autobias.
They can work with various types of penthodes: KT120, KT90, KT88, 6550, 6CA7 or EL34.

A balanced version is also available.

Based on the same general design as the JA80, this masterpiece of equipment offers the same sound quality with an unbelievable capability to drive the most difficult existing loads.

Capable of 160 watts per channel in pure Class A and 200W with the KT150, its unique power capability and dynamic behaviour are combined for the first time in vacuum-tube amplifier history, with the ultra low distortion and transparency of the best low-power exotic Class A designs.

Duo 300 2 Channel Power Amplifier 300 Watt Amplifier Featuring Krell iBias Technology Krell iBias Class A amplifiers are the first to deliver the rich musicality of Class A amplifiers, the uncompromised dynamics of classic Krell amplifiers, and the efficiency and low power consumption of Class G and H amplifiers.

Solo 575 Mono Power Amplifier 575 Watt Amplifier Featuring Krell iBias Technology Mono Amplifiers Krell iBias Class A amplifiers are the first to deliver the rich musicality of Class A amplifiers, the uncompromised dynamics of classic Krell amplifiers, and the efficiency and low power consumption of Class G and H amplifiers.