PS Audio: Yesterday I asked how it could be that a switching power supply can regulate its output without yet another power amplifier being inserted into the supply?”

Paul McGowan writes:  Yesterday I asked how it could be that a switching power supply can regulate its output without yet another power amplifier being inserted into the supply? We know that to regulate a traditional power supply of a power amplifier (something we’d love to do for best sound) we need to add a […]

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HILL PLASMATRONIC: Dedicated to the World’s Finest Speaker, the 1A

The Flame Still Burns Imagine a speaker with no moving parts.  No mass, no cones, no ribbons, no diaphragms, no enclosure, no Doppler shift, no resonances- just the ability to modulate the air directly. Now imagine a perfect audio point source (the ideal pulsating sphere) radiating uniformly with constant phase.  This has been the dream of physicists for […]

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John Crabbe: Firebrand. Steve Harris @ Stereophile magazine

Originally published 2009 America already had High Fidelity and Audio when the first British hi-fi magazine emerged. Before that, to find coverage of audio developments you’d have had to search through the pages of Wireless World, the major technical journal that covered the entire field of electronics. But in June 1956, just a couple of […]

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What about “oxygen free” wire?

Roger Russell writes: Oxygen-free copper (OFC) or Oxygen-free high thermal conductivity (OFHC) copper generally refer to a group of wrought high conductivity copper alloys that have been electrolytically refined to reduce the level of oxygen to .001% or below. Perhaps, it should be more accurately called oxygen reduced copper.  C11000 is the most common copper. […]

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McINTOSH: The MP100 is the first dedicated phono preamplifier from McIntosh and is …..

They tell us: Like all McIntosh products, the MP100 is packed with features designed specifically for the vinyl lover including: Moving Coil and Moving Magnet inputs; Moving Coil and Moving Magnet adjustable loading (6 settings each); balanced and unbalanced analog outputs; optical, coax and USB digital outputs; and a Mono switch for when playing mono […]

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iFi nano iOne DAC

Speaker Shack writes ….. Diminutive DAC delivers versatile sound-boosting digital audio ‘hub’ for all manner of devices – from smartphones and computers to TVs and games consoles. Product summary The nano iOne from iFi is designed to be a convenient, high-quality digital audio ‘hub’ – a DAC (Digital-to-Analogue Converter) that is miniature in size yet big on […]

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PS Audio: How do up and coming audio designers learn the art of designing high-end products that communicate with our emotions?

Paul McGowan writes: Teaching art Any competent artist can paint a pretty picture. Any competent engineer can design a good sounding audio product. It takes an artist to paint something that grabs our emotions and speaks to our souls. It takes an artist to design a piece of audio equipment that connects us emotionally with […]

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LYRIC HIFI: ‘The finest personal listening products available. Great sounding headphones from only $79, and …..’

They say: Here they are: The finest personal listening products available. Great sounding headphones from only $79, and dedicated headphone amps to enhance their performance. You’ll even find a short list of Staff Picks, our sales consultants’ favorite headphone models. (All starred photos are Staff Picks.) We’ve also provided background details on six premier headphone […]

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PS Audio: Continuing our thoughts on power supplies and the differences between a classic linear supply and a SMPS”

Paul McGowan writes: Continuing our thoughts on power supplies and the differences between a classic linear supply and a SMPS, I thought it might be helpful to list some generalized plus and minus’s of both.  For this post I will keep the supplies focused on power amplifiers – I do this because there lies the […]

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Astell&Kern: KANN portable high-res audio

Paul Rigby writes: Based upon the AKM AK4490 DAC, the new Kane supports native DSD playback up to DSD256 (11.2mHz) with PCM audio playback up to 32bit/382kHz Its built-in amp offers a normal/high gain switch while the unit is able to offer the lowest output impedance of any Astell&Kern portable high-res audio players: single-ended 3.5mm: 0.65 […]

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Sennheiser: HDC 820 Headphone Amplifier & CH 800 P Pentaconn Cable

Paul Rigby writes: Based upon the ESS SABRE32 DAC and supporting up to 32bit/384 kHz and up to 12.3 MHz in DSD mode, the new headphone amplifier unit utilises the analogue section and the power amplifier of the existing HDVD 800, with added tweaks Its multiple audio outputs include an unbalanced output through an XLR3/6.3mm combined NEUTRIK […]

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QEOS II Glass Speakers: I’m Looking Through You

Paul Rigby writes: A new pair of stand-mounted speakers from the German outfit, QEOS features glass to, says the company, prevent “…vibrations and cavity resonances…” While we’re on the theme, the company also states that vibrations are minimalist below the speaker due to the opposing force-coupled bass/midrange drivers decoupled from the enclosure. To read more, […]

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AMPHION: Seasoned bass player Clay Krasner feels confident with his “little big” One15 studio monitors

Coming from a family with a strong musical background, stepping into music was a ‘no-brainer’ for Clay Krasner. His passion for music was recognized early and encouraged by his father – a musician and a choir director for both school and church. Starting with piano lessons, Clay eventually discovered the guitar and, later on, the […]

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