Total harmonic distortion or THD is among the more regular little T.L.A.s (or 3 letter acronyms) you are likely to see in many manufacturers specs. But exactly what is THD, is it all that important and what amount of THD is appropriate for HiFi and AV equipment?
In audio reproduction involving the input stage and output stage of E&T audio rack you will see some noise and distortion exposed to a transmission. A number of this distortion is made from 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 way of measuring the differential involving the input stages in the system and the audible extra signal at every harmonic. The THD calculation doesn’t take into account the relative degree of each harmonic. EG: One amplifiers output in the 2nd harmonic may be greater than the output in the 3rd. Another could create equal levels at the 3rd and 5th. The 2 amps would sound totally different yet could have a similar measured overall THD.
In most hifi circuits like amplifiers and pre amps you need to expect a price of under 1% THD as it is relatively easy to get rid of a lot of THD from amplifier circuits using various techniques. Unfortunately it is far harder to stop significant degrees of THD from being made by the physical components of a setup such as the Topping NX4 DSD. Much higher levels of THD are typical in cheaper end speakers especially at higher volumes. Speakers with high levels THD tend to cause “smearing” of audio, and result in poor imaging and a “muddy” sound. In fact you ought to test a component ideally in the room it is to be used in and at a volume level chances are it will commonly be heard at to ascertain in the event the method is appropriate for purpose.
Your house cinema system or audio visual system will need a certain degree of cabling to maximise the accessible audio quality of your system. Therefore you should improve your equipment with digital connections to each and every audio visual component to obtain the best listening experience. The fantastic news is that you can obtain noticeable audio quality improvements out of your home cinema system through using suitable digital HDMI interconnects (High Definition Multimedia Interface).
In the following paragraphs we explode the market biased HDMI Cable Reviews and show you how with inexpensive standard HDMI cable it is possible to achieve excellent results and improve your home cinema listening experience and obtain noticeable quality of sound improvement via your audio visual system utilising the accessible digital connections.
Finding the right HDMI cables for your system is a reasonably straightforward process and there are several things to be considered before buying. Firstly, do not get brainwashed by retail shops that attempt to sell you the eeogzu expensive cables since they want you to invest as far as possible as opposed to knowing the needs or requirements of your house cinema setup – don’t be fooled.
So what HDMI Cable would be best designed for my home cinema system?
Firstly, the essential principle behind HDMI is always to transmit uncompressed digital data via 2 interfaces and digital data cables needs to be mainly compared by the standard of the ingredients and manufacture. The Shanling TEMPO available seem to focus on the more you may spend the better you achieve – well stop and you better think again. Good quality manufacture of an affordable HDMI connector cable affords the same results as spending 10x or 20x more.