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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PS Audio: The fundamental differences between tubes and transistors

Paul McGowan writes: In yesterday’s post we covered how the mysterious crystals used to make radio receivers first were spun off to the vacuum tube and later rediscovered to become transistors.  Today let’s cover some of the fundamental differences between tubes and transistors. Let’s start with what the two have in common: they both are […]

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Furutech’s New Destat III

We are told ….. Japanese cable and accessories experts Fututech continue their assault on the various unwanted ‘intruders’ that can get in the way of peak hi-fi performance. The new destat III effortlessly eliminates dust and static from analogue and digital media, from audio and video components, and, well, pretty much anything…. —//— The destat […]

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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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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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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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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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Rowland Model 112 or Simaudio Moon W5

Which one or how would you compare the two. I realize the Rowland is lower in power rating. Audio Research LS3 Sonus Faber Toy Towers Opus NuForce Special Edition Furman Elite 20 amp power conditioner Dedicated 20 amp power with hospital grade outlet Cardas cables Dip in and out HERE Many preowned classic examples for […]

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DENSEN: B-250CAST Reference Pre Amp: With Added Google

Paul Rigby writes: A new 2-channel preamp with Google CAST streaming capability The amplification stages are all developments based on Class A designs while the output stage is a dual mono. The Densen B-250CAST has a dedicated Densen Cast power supply for the Google Cast receiver plus a dedicated optical input. Densen has even developed a dedicated power cord to […]

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