Total harmonic distortion or THD is probably the more regular little T.L.A.s (or Three letter acronyms) you will likely see in many manufacturers specifications. But precisely what is THD, could it be all of that important and what level of THD is appropriate for HiFi and AV equipment?
In hifi table in between the input stage and output stage of any hifi system you will have some noise and distortion brought to a signal. A few of this distortion is produced from the circuits and physical elements introducing signal harmonics at double and triple the frequencies in the original signal. These added signals are technically referred to as Harmonic Distortion. THD is really a measure of the differential involving the input stages in the system and also the audible extra signal at every harmonic. The THD calculation doesn’t take into account the relative amount of each harmonic. EG: One amplifiers output on the 2nd harmonic may be greater than the output at the 3rd. Another could create equal levels on the 3rd and 5th. The two amps would sound totally different yet could have a similar measured overall THD.
In many hifi circuits like amplifiers and pre amps you need to expect a value of less than 1% THD as it is easy to remove a substantial amount of THD from amplifier circuits using various techniques. Unfortunately it is actually far harder to avoid significant amounts of THD from being created by the physical aspects of a setup like the hifi speakers. Greater degrees of THD are normal in cheaper end speakers especially at higher volumes. Speakers rich in levels THD often cause “smearing” of audio, and bring about poor imaging as well as a “muddy” sound. The truth is you need to test a component ideally inside the room it is going to be found in as well as at a volume level it is likely to commonly be heard at to find out if the product is acceptable for purpose.
Your house cinema system or Topping DAC will demand a specific amount of cabling to maximise possible quality of sound of your system. Therefore you should maximise your equipment with digital connections to each audio visual component to achieve the best listening experience. The particular great news is that you can obtain noticeable audio quality improvements out of your home cinema system through using suitable digital HDMI interconnects (Hi-def Multimedia Interface).
In this article we explode the industry biased HDMI Cable Reviews and explain to you how with inexpensive standard HDMI cable you are able to achieve excellent results and boost your home cinema listening experience and snjfol noticeable audio quality improvement through your audio visual system utilising the accessible digital connections.
Choosing the best HDMI cables for your own system is a fairly straightforward process and there are some things to be considered before you buy. Firstly, tend not to get brainwashed by retail shops that make an effort to sell you the most costly cables simply because they would like you to invest as far as possible rather than comprehending the needs or requirements of your home cinema setup – don’t be fooled.
What exactly HDMI Cable might be best best for my home cinema system?
Firstly, the fundamental principle behind HDMI is to transmit uncompressed digital data via 2 interfaces and digital data cables should be mainly compared by the quality of the components and manufacture. The Shanling CD player available appear to focus on the more you would spend the better you achieve – well stop and you better think again. Top quality output of an affordable HDMI connector cable gives the same results as spending 10x or 20x more.