Building on the legacy of the award-winning HPA-1, the new HPA-1c raises the bar in headphone amplification. While the core amplifier circuit remains true to its original, highly regarded design, we\'ve taken the opportunity to refine and enhance its performance.

The popular American magazine The Absolute Sound first picked the Absolute 845 as the best product of 1994. After more than 20 years, the Absolute is still ranked first overall in tube amps with a score higher than any other amplifier. No other audio product has remained at the top of its class for so long. The Absolute 845 is not only the story of Unison Research, it is a significant piece of audio history in general, forever tied to the world of analog valves. In many ways, the Absolute is still unsurpassed.

Featuring a six-fold parallel push-pull architecture with power MOS-FETs, as well as ideal gain allocation realized with discrete semiconductors in an instrumentation amplifier configuration, the A-48 harnesses a wealth of advanced technology. Its outstanding performance is exemplified by a signal/noise ratio of 117 dB, output of 360 watts into 1 ohm (music signals), and a damping factor of 800. The newly designed output protection circuit can detect any short-circuiting of the speaker terminals, for complete peace of mind. This power amplifier is the ultimate instrument for immersive music appreciation on the highest level.

KDA-1000 DSP Amplifier
For outdoor systems requiring more output, the Klipsch KDA-1000 DSP Amplifier powers larger arrangements to deliver incredible performance from a 1000W, single-rack unit solution - all completely customizable through the web-based DSP menu.

The heart of an uncompromising audiophile stereo “separates” system is the preamplifier. Separate components hold the promise of the best possible fidelity, since each device is optimised for its role in the sound reproduction chain. The new RC-1572 stereo preamplifier leverages the design of our flagship RC-1590 preamplifier including its 32bit/768kHz AKM stereo digital-to-analog converter to handle critical signal conversion. Among many refinements, the RC-1572 utilises relay switching for analog sources instead of an IC based switch to maintain the integrity of the signal path for RCA, phono and XLR inputs.

This integrated amplifier sets a new benchmark in significantly narrowing any perceived performance gap between separate components and integrated amplifiers. Advanced technologies and real-world testing combine to create the INT-60 which presents 60 glorious watts per channel into 8 ohms, and doesn\'t leave class A until 30 watts thanks to its high-bias operation. This larger class A operating envelope brings lower distortion and greater loudspeaker control, delivering higher quality musical fidelity for your enjoyment.

Like the INT-60, the INT-250 utilizes the synergies developed in the .8 series power amplifiers. Unlike the INT-60, however, it brings 250 watts per channel of listening pleasure. With higher power MOSFETs and more of them, the INT-250 drives large, demanding and relatively inefficient loudspeakers at higher volumes without batting an eyelash, singing beautifully. Just incredible music from one component.

"The entrance into real high-end tube amplification".

The Scorpio represents a dramatic rethinking of economic vacuum tube based integrated amplifier industrial design while retaining the basic architecture as our highly regarded "Spirit" amplifier.

The Scorpio integrated amplifier combines neutrality, realistic dynamics and power projection, true musicality with high resolution.

Perfect finish, elegant discrete design and outstanding sonic performance make the "Scorpio" unique, setting a new price-to-value standard in its class.

The Epsilon Monoblock immediately makes clear that its wider power bandwidth delivers more speed, top-end air and detailed resolution. It gives a precise sound, combined with an impactful bass. It has also the wonderful ability to unravel complex musical threads with grain less purity along with surprising musical dynamics. This true balanced monoblock provides perhaps the finest KT150 design performance available anywhere near its price.

5-channel power amplifier with 325 watts per channel continuous power into 8 ohms. By design, P2 and P5 amplifiers are powerful independent "monoblock" amplifiers. Each channel is self-contained on its own glass-epoxy circuit board and heatsink and benefits from an independent power supply. Since there is no common audio path between channels there is a complete absence of crosstalk. Frequency-response channel matching is superb. The musical picture is seamless and exquisitely detailed with a multichannel soundstage that is astonishingly transparent, cohesive and three dimensional.

The Black EX Dual Mono Amplifier is designed in a custom plated high-grade aluminium chassis that contains independent power supplies and amplifiers unique to Black EX for true dual-mono performance.

The Bel Canto REF501S is an outstanding entry point to Bel Canto standalone power amps. It has plenty of power to drive a wide variety of speakers, but has seen a significant upgrade in the quality of power over the former REF500S with Bel Canto’s custom NCore implementation. It’s an ideal match to Bel Canto’s Pre5 preamplifier, or driven directly by the Bel Canto DAC2.8 DAC control preamp.

The REF600M monoblock provides serious power, delivering the pure treble of Class A, the slam of the best Class D architectures, and the mid band presence that brings your music to life.

The E1X Stereo amplifier is designed in a sleek all-aluminium chassis using our unique constrained layer damping that provides the highest quality anti-vibration platform for high-power amplification.

PrimaLuna Evolution 100 Tube Preamplifier

Compare PrimaLuna construction to any other brand, at any price. You\'ll be amazed.

The art of technological progress, beautifully expressed in the art of visual design, in an amplifier of truly remarkable ability. Let us present to you the Boulder 1160 Stereo Power Amplifier, recognized by media and editors in the US, Taiwan, France, China, England, Japan, Poland, Hong Kong, and Italy with eleven awards for exceptional ability.

PrimaLuna Evolution 200 Tube Preamplifier

Compare PrimaLuna construction to any other brand, at any price. You\'ll be amazed.

For over 35 years, Boulder has been building the world’s highest quality audio components near Boulder, Colorado.  Boulders are cherished by music and film lovers all over the world and are instilled with quality and value that transcend the passage of time.

The 2150 Mono Power Amplifier is the beneficiary of 30 years of amplifier design. It replaces the renowned 2050 Mono Power Amplifier, a benchmark product that stayed in continuous production for almost 18 years.

PrimaLuna Evolution 400 Tube Preamplifier

Compare PrimaLuna construction to any other brand, at any price. You\'ll be amazed.