Tweak-Fi

"If it measures good and sounds bad, it is bad.
If it sounds good and measures bad, you've measured the wrong thing."

Reviews

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Review: Audiophilleo 2 USB to SPDIF Converter - The Missing Link

Posted by Amine Slimani on November 4, 2011 at 7:15 AM Comments comments (13)



When I started writing about USB to SPDIF converters around two years ago, I faced a lot of skepticism over at head-fi. Some of the usual complaints were rather similar to the following: How is it possible that two bit perfect transports can sound any different from one another? How is it possible that gigabytes of data can be transported over USB cabl...

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3 Tweaks for Cheap!

Posted by kboe on September 20, 2011 at 1:15 AM Comments comments (5)

October 2011

Tweaks for the HiFiMan EF-5 Hybrid Headphone Amp




Reviewer: Kevin Pope

Transport: 160GB iPod Classic loaded with AIFF

Source: Pure i20

Amp: HiFiMan EF-5

Headphones: AKG K-702

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Review: Aktyna ARIS - The Ultimate decoupling feet?

Posted by Amine Slimani on August 24, 2011 at 2:45 PM Comments comments (7)



The Aktyna A.R.I.S. Evo2 are high performance decoupling feet for audio (and video) equipment that transform the vibration generated by the equipment itself and by the outside environment into heat.

 

Throughout the past three years I have experimented with different coupling and decoupling feet and platforms. While most of them did change the sound of my system, very few did it withou...

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Review: Maple Wood Button Isolators.

Posted by kboe on August 15, 2011 at 8:55 PM Comments comments (8)

August 2011

Maple Wood Button Footers




Reviewer: Kevin Pope

Source: Pure i20, ALO iPod dock, 160GB iPod Classic loaded with AIFF

Amp: Schiit Asgard Headphones: AKG K-702, K-240 with Cardas replacement harness, K-130, Sennheiser HD-598

Cables: Power - Cardas Qu...

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Members Reviews: Deep Sound Cables

Posted by Amine Slimani on April 2, 2011 at 6:00 AM Comments comments (0)

I posted a few months ago a review about Deep Sounds Cables, which are the work of Stuart (aka Deep Sounds). I posted the review here: http:/www.tweak-fi.com/apps/blog/show/5030346-review-deep-sounds-cables-silver-surfers

Since then, Stuart improved upon the cables he sent me and he sent samples to 2 members of Tweak-fi (Kboe and rosgr63). I thought it would be intere...

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Review: Kingrex UC192 USB to Spdif Converter

Posted by Amine Slimani on February 16, 2011 at 2:45 PM Comments comments (0)


 

These past 2 years, we have seen an increasing number of USB to SPDIF devices hit the market. While the first devices were seriously limited in both connectivity and raw performance, they were mainly intended to provide a means to connect our computers to external DACs. The newest generation of usb to spdif converters raised the performance bar, and some USB converters can now sonical...

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Review: Beyerdynamic T1 with ALO Chain Mail Cable

Posted by Amine Slimani on December 10, 2010 at 4:30 PM Comments comments (2)

Introduction:

 

 Reviewing the ALO recabled Beyerdynamic Tesla 1 posed a challenge: how to evaluate a component that is perhaps more transparent than the rest of the chain that it is being associated to? How to make sure that what I am describing is a sonic characteristic of the headphone and not that of the chain preceding it?

 

During the past few months, I had to reassess my judgement on the Beyer T1s a few times. While I liked the ALO B...

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Mini Review: DSP1 V5 upgrade for the Audio-gd DAC19DSP

Posted by Amine Slimani on December 6, 2010 at 10:45 AM Comments comments (14)

Introduction:

 

How much can a digital filter affect the sound of the DAC? Up until last year, I was unaware of the importance (and even the role) of the digital filter in the sonic outcome of a DAC. It was until I used the DAC19MK3 and got to compare side by side the HDCD capable PMD100 against the DF1704 that I started to understand the importance of the digital filter. I found that both thePMD100 and DF1704 had strengths and weaknesses which led me to replace the da...

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In what ways similarly measuring cables and equipment can sound different?

Posted by Amine Slimani on October 20, 2010 at 1:17 PM Comments comments (3)

The idea of writing this article came to me while I was trying to find the right words to explain to head-fier how I felt about the differences between the stock BeyerT1 and the ALO recabled Beyer T1. Since I described the ALO as being smoother sounding than the stock cable, he deduced that the ALO cable was acting as some sort low pass filter. While it is quite explicable, it is far from what I heard. This simple exchange highlighted two things to me: Written communication is obviously trick...

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The USB to SPDIF shoot-out Review - Part 2 : Teralink-X2 vs. Jkeny's modified Hiface vs. Audio-gd digital interface

Posted by Amine Slimani on October 12, 2010 at 7:10 PM Comments comments (2)

Before getting into the second part of this review, I wanted to take a moment to describe the effect of a small “tweak” that can applied to many USB converters, the USB2ISO or ADUM isolator.

What this little dongle does is that it provides galvanic isolation between the computer and whatever converter is connected through USB.


USB2ISO isolator (galvanic USB isolation):


Many USB converters have some sort of tr...

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