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This is a review, listening tests, EQ and detailed measurements of the KZ Castor Silver IEMs with configuration Harman frequency response. It was kindly drop shipped to me by a member and costs US $22. The Castor is attractive while looking reserved and was comfortable to wear. It comes with...

This is a review and detailed measurements of an HDMI to Coax/Toslink and IIs interface converter with support for DoP format. It was kindly drop shipped to me by a member and costs US $103. As you see, there is no brand name on it. Here is a link to the ebay listing...

This is a review and detailed measurements of the Schiit Vidar 2 stereo/mono class AB amplifier. It was sent to me by the company and costs US $799. Nice to see Schiit (finally) put a stand-by switch in the front. They usually have only a power button in the back. Being a class AB amplifier...

This is a review, listening tests and detailed measurements of the "Mechano23" open-source DIY speaker. A pair was kindly sent to me by the member. You can read more about it here. Baltic birch cabinet seems quite solid and well above what you get commercially. I was surprised to see a...

I thought craziness was only limited to audio but it has also invaded gardening!

This is a review and detailed measurements of the LYNEPAUDIO B049, 6 input, 4 output active audio switcher. Unfortunately I can't find who sent it to me but it costs US $44.85 It is nice, solid case with an input selector that feels pretty good. The output switches are a bit mushy and hard to...

This is a review and detailed measurements of the E1DAC Cosmos ADCiso specialized Analog to Digital Converter (ADC). The grade "B" was kindly purchased by a member and costs US $179. As you see, you have dual balanced inputs. Back side has two USB-C inputs: one for power and one for computer...

Hard to comprehend the scale of this engine:

This is a review, detailed measurements and listening tests of Sonic Lamb wired/wireless noise cancelling (?) headphone with built-in "subwoofer." It is a kick-starter type of product which a member kindly drop shipped to me after waiting a year. It is currently on sale for $US 239. As you see...

This is a review, detailed measurements, listening tests and equalization of Sennheiser HD 490 Pro open back headphone. It was kindly drop shipped to me and costs US $399. The headphone is ultra light courtesy of plastic composite that manage to also feel extremely solid. The included cord...

This is a review and detailed measurements of the Mofi Studiophono MM/MC phono preamplifier. It is on kind loan from a member and costs US $349. The packaging has a retro feel to it and I don't mean that as a positive. When a device has the word "studio" in it, I expect solid metal enclosure...

As most of you probably know, I reviewed the Tekton M-Lore speaker back in October of last year. Company recently complained that my measurements were in error due to woofer being listening axis and not the tweeter (speaker manual disputes this). And that without the feet, the holes that house...

This is a review and detailed measurements of the Topping D50 III balanced stereo DAC with support for parametric equalization. It was sent to me by the company and costs US $229. Sorry for the quality of the picture/display. It is quite dim compared to my photography light and when I tried to...

Man, it has been an intense week dealing with the Tekton situation. Someone made a great suggestion that I should do a review of something good. Powered up the Audio Precision and the software says the license is expired!!! No way to upgrade it until next work week. So I thought the heck...

As many of you I am sure have followed, both Erin and I were hit with legal threats from a company post our reviews. Given the unfairness of the situation, many of you came to our defenses and provided incredible level of support both financially and in many other ways such as legal and...

The Pacific Northwest Section of the Audio Engineering Society has presented meetings with jj that I and many of us really like and appreciate. The Chair of that group, Dan Mortensen, is trying to be nominated to be President of the parent AES organization, and needs 100 nominations from full...

This is a review, listening tests, EQ, and detailed measurements of the Revel F206 Floor-standing speaker. It is on kind loan from a member (new) and costs US $1347.50 each. Please excuse the mobile phone picture quality and plastics that are still on the speaker. I try to keep products as...

I don't know how many of you have been reading the Tekton review thread. But it seems that the company designer/owner has threatened Erin, forcing him to take down his video and written review of one of his speakers. As we all know, Erin's core contributions are measurements of the speaker and...

This is a review, listening tests, equalization and detailed measurements of the Hifiman Ananda Nano headphone. It was kindly purchased by a member for testing and costs US $499. The Nano looks attractive although the feel is not that of luxury. It is a bit light. The forward part of the pad...