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Total harmonic distortion or THD is one of the more regular little T.L.A.s (or Three letter acronyms) you will probably see in many manufacturers specifications. But precisely what is THD, could it be everything that important and what degree of THD is appropriate for HiFi and AV equipment?

In hifi audio rack between the input stage and output stage of the hifi system you will have a certain amount of noise and distortion brought to a signal. Some of this distortion is produced by the circuits and physical elements introducing signal harmonics at double and triple the frequencies from the original signal. These added signals are technically referred to as Harmonic Distortion. THD is actually a way of measuring the differential in between the input stages of the system as well as the audible extra signal at every harmonic. The THD calculation doesn’t consider the relative level of each harmonic. EG: One amplifiers output on the 2nd harmonic might be greater than the output in the 3rd. Another could create equal levels in the 3rd and 5th. The two amps would sound very different yet could have the same measured overall THD.

In many hifi circuits such as amplifiers and pre amps you need to expect a value of less than 1% THD as it is relatively easy to eliminate a lot of THD from amplifier circuits using various techniques. Unfortunately it really is far harder to prevent significant levels of THD from being made by the physical elements of a setup including the hifi speakers. Higher amounts of THD are normal in cheaper end speakers especially at higher volumes. Speakers with higher levels THD often cause “smearing” of audio, and lead to poor imaging along with a “muddy” sound. The truth is you need to test a component ideally inside the room it is going to be found in and also at a volume level it is likely to commonly be heard at to ascertain when the method is appropriate for purpose.

Your home cinema system or Topping NX4 DSD will demand a specific level of cabling to maximise possible audio quality of your system. Therefore you will need to maximise your equipment with digital connections to every audio visual component to achieve the best listening experience. The great news is you can obtain noticeable sound quality improvements from your home cinema system through using suitable digital HDMI interconnects (High Definition Multimedia Interface).

In this post we explode the business biased HDMI Cable Reviews and explain to you how with inexpensive standard HDMI cable you can achieve excellent results and enhance your home cinema listening experience and snjfol noticeable quality of sound improvement through your audio visual system utilising the available digital connections.

Choosing the best HDMI cables for your own system is a reasonably straightforward process and there are several things that need considering before buying. Firstly, tend not to get brainwashed by retail shops that attempt to sell you the highest priced cables because they would like you to enjoy as much as possible as opposed to comprehending the needs or requirements of your property cinema setup – don’t be fooled.

Just what exactly HDMI Cable would be best suited for my home cinema system?

Firstly, the fundamental principle behind HDMI would be to transmit uncompressed digital data via 2 interfaces and digital data cables should be mainly compared by the standard of the components and manufacture. The Shanling audio available seem to focus on the more you would spend the more you achieve – well stop and you better think again. High quality creation of an affordable HDMI connector cable provides the same results as spending 10x or 20x more.