Total harmonic distortion or THD is one of the more regular little T.L.A.s (or Three letter acronyms) you are likely to see in many manufacturers specifications. But what exactly is THD, could it be all that important and what level 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 some noise and distortion introduced to a signal. A number of this distortion is produced through 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 really a measure of the differential involving the input stages in the system as well as the audible extra signal at each harmonic. The THD calculation doesn’t take into account the relative amount of each harmonic. EG: One amplifiers output at the 2nd harmonic might be greater than the output at the 3rd. Another could create equal levels in the 3rd and 5th. The 2 amps would sound completely different yet could have the identical measured overall THD.
In most hifi circuits like amplifiers and pre amps one should expect a price of lower than 1% THD because it is relatively simple to get rid of a substantial amount of THD from amplifier circuits using various techniques. Unfortunately it is actually far harder to stop significant levels of THD from being made by the physical components of a setup including the hifi speakers. Higher levels of THD are common in cheaper end speakers especially at higher volumes. Speakers with high levels THD often cause “smearing” of audio, and result in poor imaging and a “muddy” sound. The truth is one should test a component ideally inside the room it is going to be utilized in and also at a volume level it is likely to commonly be heard at to ascertain if the method is suitable for purpose.
Your home cinema system or Topping NX4 DSD will require a specific amount of cabling to maximise possible quality of sound of the system. Therefore you will need to improve your equipment with digital connections to every audio visual component to achieve the best listening experience. The great news is you can obtain noticeable quality of sound improvements from your own home cinema system through using suitable digital HDMI interconnects (Hi-def Multimedia Interface).
In this article we explode the business biased HDMI Cable Reviews and explain to you how with inexpensive standard HDMI cable you are able to achieve excellent results and enhance your home cinema listening experience and snjfol noticeable audio quality improvement through your audio visual system utilising possible digital connections.
Choosing the best HDMI cables for your own personel system is a pretty straightforward process and there are a few things to be considered before you purchase. Firstly, usually do not get brainwashed by retail shops that attempt to sell you the most expensive cables because they want you to enjoy whenever possible as opposed to comprehending the needs or requirements of your home cinema setup – don’t be fooled.
So what HDMI Cable would be best designed 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 caliber of the components and manufacture. The Shanling CD player available seem to focus on the more you spend the better you accomplish – well stop and reconsider. Top quality creation of an inexpensive HDMI connector cable affords the same results as spending 10x or 20x more.