Underwood Hifi and Core Power Tech A/V Introduce the USBe Perfect – THE ANSWER to USB Signal Transmission

June 13, 2020

Underwood Hifi and Core Power Tech A/V

Introduce the USBe Perfect –

THE ANSWER to USB Signal Transmission

Walter Liederman, owner of Underwood Hifi and Core Power Tech A/V had these comments when asked about the USBe Perfect –

The USBe Perfect is designed to yield the best results when using USB (Type 2 or Type 3) in your audio system. Now that USB has become the transmission medium of choice, we saw a need to create the absolute best connection for the Highest Fidelity result.

Carefully designed and meticulously Alpha and Beta Tested, the results were unanimous. USBe Perfect improved every system it was placed in. We decided to bring this product to market with an Introductory Price of $299. This is a special offer during these difficult times – the actual retail price is 499 dollars.

USBe Perfect Technical Highlights

The USBe Perfect is designed to minimize signal degradation effects such as crosstalk, jitter, and inter-symbol interference (ISI) that negatively affect audio quality. This is achieved with a comprehensive set of features that optimize the entire USB signal transmission chain These include –

  • Integrated Regeneration of the USB 5V power from the source.
  • Input stage equalization. Each input channel re-equalizes the signal gain with transmission frequency to compensate for cable losses.  (assumed to be 1 to 3 meters)
  • Output stage matching. The outputs stage provides tailored de-emphasis to compensate for impedance mismatches at the signal termination.

The following plots show the input and output of typical implementation based on USBe Perfect with a USB 3.0 Type A connector and a Standard USB3.0 3-meter long cable

Note the greatly improved Eye Mask indicating the potential for less signal error and greater transmission efficiency.

Underwood Hifi has been at your service for 21 years. We are an Internet Direct / Low Overhead Business which allows us to bring the absolute best products to market at the very best possible pricing. We own Living Sounds Audio, Emerald Physics and Core Power Technologies A/V and each of these product lines exemplifies our core values of Great Products at Great Prices with unparalleled Customer Service. We manufacture them and sell them to end users at typical dealer cost. We also Distribute Brands like Pure Audio and Rethm in the USA. We invite your enquiry about the USBe Perfect or any of our other products.

Underwood Hifi / Core Power Technologies AV



Contact Walter Liederman / 770.667.5633  underwoodwally@aol.com


Share this entry

  • Gary Alan Barker
  • 2020-06-23 18:50:04
  • Since this is a press release rather than a review, I have no direct experience with this device, but I can say that noise on USB outputs is definitely an issue, especially with higher bit rates like High-resolution PCM and DSD. I have experienced more than one high-end USB cable that won't pass DSD.
  • Reply

  • Raptor Jesus
  • 2020-06-18 14:04:17
  • A solution in search of a problem.
  • Reply

  • Gabs Michel
  • 2020-06-18 04:01:43
  • snake oil ?
  • Reply

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