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HumminGuru? Just another Tik-Tok #influencer, you'd think? No, it turns out HumminGuru is a Hong Kong-based firm focused on accessories for vinyl enthusiasts, from LP inner sleeves to ultrasonic record cleaning machines. Two actually, both functionally similar to the high-end audiophile approved $4-6K machines, but currently going for as little as $379 and $699. Not... Read More »

This article by Jeff Day originally ran in Positive Feedback ISSUE 45 September/October 2009, so while we call this section "New Old Stock - Articles from Our Days in Print" you are also going to see some articles from our early days of going online.  It's common knowledge that cleaning vinyl records makes a big... Read More »

When my review for Vera-Fi Audio's Main Stream™ went live a few weeks ago, Vera-Fi mainman Mark Schifter was only able to supply me with a single device for evaluation. Which according to Mark was at that point the only alpha unit presently in the field! I was really keen to first check out its... Read More »

Early this year, Vera-Fi Audio main-man Mark Schifter messaged me to gauge my interest in a new product line he was then representing from Thai manufacturer Puron. I'd told Mark that even though I had a pair of AudioQuest Niagara Low Z, AC power conditioning units in place at the new home in South Carolina,... Read More »

Greetings friends, and welcome to Chapter 15 of the Acoustic Revive Chronicles! You can see a list of the previous chapters of the Acoustic Revive Chronicles in the archives HERE. In Chapter 15 of the Acoustic Revive Chronicles I'll be telling you about the new RTS-30 turntable mat, RHS-1 headshell, RHR-21 Helmholtz resonator, and the... Read More »

As I stated in my original review, the primary function of Vera-Fi Audio's Swiss Digital Fuse Box (SDFB) is to remove and replace the weakest link that existed in the device it's connected to. Which in my case was the main AC line fuse in my PrimaLuna EVO 300 tube integrated amplifier's power supply. Other... Read More »

Over my life as an audiophile, I've had three individual instances where I was absolutely certain beyond doubt that the consequences of my actions would in no time send me rocketing down the highway to high-end audio hell. The first came over a decade ago when I followed the advice I'd gotten from another audio... Read More »

Audiophile tweaks; you can either love them or hate them, but if you are a passionate audiophile, they are difficult to ignore. Sure, they can be controversial, and in a few cases, they can even be outright frauds with claims that border on the ludicrous. However, in my experience, if you look long and hard... Read More »

A while back I found myself the new custodian of some excellent prototype speakers. I'd heard the Communique floorstander at several Colorado Audio Society listening sessions and really enjoyed this speaker. Built by MG Audio Design, which was mainly a cable company at the time, (Positive Feedback's own Pete Davey reviewed their Planus speaker and... Read More »

Carbide Audio is based in the city of Llano located east of Austin, in the mountainous part of Texas. Founded in 2019 by Jeffrey Jenkins, this specialized audio company focuses on anti-vibration feet. It makes almost all the components for them in-house, using CNC machines, measurements and listening. We test its top-of-the-line Carbide Base Diamond... Read More »

As widely noted, for the second year in a row in 2023, vinyl record sales topped compact disc sales in the U.S.—this time by a whopping $43 million, or about six million more than total CD sales last year (popsci.com). This point recently hit home personally when my wife, Belle, said that her hipster boss... Read More »

I'm constantly on social media, quite often for audio-related purposes. And I'd seen teasers for months highlighting the ongoing development of Vera-Fi Audio's SnubWay Noise Defender, or more simply, SnubWay. The posts seemed to mostly focus on different variations of the case design, with only snippets of information regarding the actual function of SnubWay. With... Read More »

As many years as I have been in this hobby, within the last few I have become more and more intolerant of the exaggerated claims of expensive tweaks by some manufacturers. You can throw wire and cable into this debate, but that is a subject for another day. If one is trying to eke out... Read More »

  In my recent review of the Puron AC Power Conditioners, I was struck by the abundance of amazing and relatively inexpensive enhancements available to substantially improve the performance of your audio and video systems. Those include devices and accessories of every make and manner that, based on their outward appearance, would seem incapable of... Read More »

Playing vinyl is some of the most fun you can have in this hobby. Sliding a record out of its sleeve and setting it on the platter, throwing a switch and watching a turntable to come up to speed, cueing down a tonearm and hearing that satisfying sound of when the stylus contacts the record.... Read More »

A Swiss Digital Fuse Box (SDFB for short) is a $395 device that replaces the generic $2 power fuse in high performance audio gear. Yes, you read that right. It is also potentially the most disruptive audiophile add-on since…what?…the subwoofer?… the power conditioner? Sorry, but your THC gummies don't qualify. So let us first consider... Read More »

Since my move to South Carolina, I've been in the process of slowly refining and (hopefully!) finalizing my seemingly ever-evolving audio systems. With regard to the analog system, the recent addition of the PS Audio Stellar phono preamp has gotten me very close to the end-game for the room. The Stellar has inputs to service... Read More »

There are two recent observations I've made in high-end audio: 1) There are plenty of relatively inexpensive devices that can add significantly to your enjoyment of music and video playback, even if those devices might appear to be incapable of making a difference. Also, 2) The number of "audio enthusiasts" who dismiss the perceived benefits... Read More »

Network Acoustics is probably best known for their ENO Ethernet Filter (HERE), but they also offer a line of Ethernet and digital cables as well as an assortment of other products to make your network streaming all that much better. And as you will see, a whole lot better. Case in point, their statement muon... Read More »