Total harmonic distortion or THD is probably the more regular little T.L.A.s (or Three letter acronyms) you are likely to see in many manufacturers specifications. But precisely what is THD, is it all that important and what degree of THD is acceptable for HiFi and AV equipment?
In audio reproduction between the input stage and output stage of hifi racks you will see a certain amount of noise and distortion introduced to a transmission. A few of this distortion is created 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 really a measure of the differential involving the input stages in the system and the audible extra signal at every harmonic. The THD calculation doesn’t think about the relative degree of each harmonic. EG: One amplifiers output in the 2nd harmonic might be higher than the output at the 3rd. Another could create equal levels at the 3rd and 5th. The 2 amps would sound very different yet could have a similar measured overall THD.
In many hifi circuits like amplifiers and pre amps one should expect a price of lower than 1% THD because it is relatively easy to eliminate a substantial amount of THD from amplifier circuits using various techniques. Unfortunately it is actually far harder to avoid significant degrees of THD from being produced by the physical components of a setup such as the Hifi Audio. Greater levels of THD are typical in cheaper end speakers especially at higher volumes. Speakers with higher levels THD tend to cause “smearing” of audio, and lead to poor imaging as well as a “muddy” sound. In fact you ought to test a component ideally within the room it is to be found in as well as at a volume level chances are it will commonly be heard at to ascertain when the system is suitable for purpose.
Your house cinema system or audio visual system will require a specific level of cabling to maximise the accessible sound quality of the system. Therefore you will want to improve your equipment with digital connections to each audio visual component to get the best listening experience. The great news is that you can obtain noticeable audio quality improvements from your own home cinema system through using suitable digital HDMI interconnects (Hi-def Multimedia Interface).
In the following paragraphs we explode the industry biased HDMI Cable Reviews and explain to you how with inexpensive standard HDMI cable it is possible to achieve excellent results and enhance your home cinema listening experience and obtain noticeable quality of sound improvement using your audio visual system utilising the available digital connections.
Finding the right HDMI cables for your own system is a reasonably straightforward process and there are several things that need considering before you buy. Firstly, tend not to get brainwashed by retail shops that try to sell you the eeogzu expensive cables because they would like you to enjoy whenever possible as opposed to comprehending the needs or requirements of your home cinema setup – don’t be fooled.
What exactly HDMI Cable would be best suited for my home cinema system?
Firstly, the basic principle behind HDMI is to transmit uncompressed digital data via 2 interfaces and digital data cables should be mainly compared by the standard of the ingredients and manufacture. The Shanling TEMPO available manage to focus on the more you would spend the greater you achieve – well stop and you better think again. High quality creation of an inexpensive HDMI connector cable provides the same results as spending 10x or 20x more.