Total harmonic distortion or THD is among the more regular little T.L.A.s (or Three letter acronyms) you are likely to see in many manufacturers specs. But precisely what is THD, is it all that important and what degree of THD is appropriate for HiFi and AV equipment?
In audio reproduction between the input stage and output stage of hifi table you will see a certain amount of noise and distortion introduced to a signal. Some of this distortion is produced through the circuits and physical elements introducing signal harmonics at double and triple the frequencies of the original signal. These added signals are technically referred to as Harmonic Distortion. THD is a way of measuring the differential involving the input stages from the system and also the audible extra signal at each harmonic. The THD calculation doesn’t think about the relative level of each harmonic. EG: One amplifiers output at the 2nd harmonic could be more than the output in the 3rd. Another could create equal levels on the 3rd and 5th. The 2 amps would sound very different yet could have the identical measured overall THD.
Generally in most hifi circuits such as amplifiers and pre amps you need to expect a worth of under 1% THD because it is easy to eliminate a substantial amount of THD from amplifier circuits using various techniques. Unfortunately it is actually far harder to prevent significant amounts of THD from being made by the physical elements of a setup like the Topping DAC. Greater amounts of THD are normal in cheaper end speakers especially at higher volumes. Speakers with higher levels THD have a tendency to cause “smearing” of audio, and result in poor imaging and a “muddy” sound. In fact one should test a component ideally in the room it will be found in as well as at a volume level chances are it will commonly be heard at to find out in the event the product is suitable for purpose.
Your home cinema system or audio visual system will require a specific amount of cabling to maximise possible audio quality of your system. Therefore you should maximise your equipment with digital connections to each audio visual component to obtain the best listening experience. The very fantastic news is you can obtain noticeable sound 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 business biased HDMI Cable Reviews and show you how with inexpensive standard HDMI cable it is possible to achieve excellent results and boost your home cinema listening experience and get noticeable sound quality improvement via your audio visual system utilising the available digital connections.
Choosing the best HDMI cables for your system is a fairly straightforward process and there are several things to be considered before you buy. Firstly, do not get brainwashed by retail shops that try to sell you the eeogzu expensive cables because they would like you to invest as much as possible as opposed to knowing 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 basic principle behind HDMI is always to transmit uncompressed digital data via 2 interfaces and digital data cables ought to be mainly compared by the standard of the constituents and manufacture. The HiFi Audio available appear to focus on the more you may spend the greater you accomplish – well stop and reconsider. Good quality output of an inexpensive HDMI connector cable affords the same results as spending 10x or 20x more.