Total harmonic distortion or THD is among the more regular little T.L.A.s (or Three letter acronyms) you will likely see in most manufacturers specifications. But exactly what is THD, is it everything that important and what degree of THD is appropriate for HiFi and AV equipment?
In hifi table in between the input stage and output stage of a hifi system there will be a certain amount of noise and distortion brought to a transmission. Some of this distortion is made 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 between the input stages from the system and also the audible extra signal at every 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 in the 3rd and 5th. The 2 amps would sound totally different yet could have the same measured overall THD.
Generally in most hifi circuits including amplifiers and pre amps you ought to expect a price of under 1% THD as it is easy to remove a lot of THD from amplifier circuits using various techniques. Unfortunately it really is far harder to stop significant degrees of THD from being created by the physical components of a setup including the hifi speakers. Greater amounts of THD are common in cheaper end speakers especially at higher volumes. Speakers with high levels THD have a tendency to cause “smearing” of audio, and result in poor imaging as well as a “muddy” sound. In fact one should test a component ideally in the room it is going to be found in and also at a volume level it is likely to commonly be heard at to find out in the event the system is appropriate for purpose.
Your house cinema system or Topping DAC will demand a certain degree of cabling to maximise possible sound quality of your system. Therefore you will want to maximise your equipment with digital connections to each and every audio visual component to obtain the best listening experience. The very fantastic news is you can obtain noticeable sound 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 improve your home cinema listening experience and snjfol noticeable quality of sound improvement via your audio visual system utilising the available digital connections.
Finding the right HDMI cables for your own system is a fairly straightforward process and there are a few things to be considered before you purchase. Firstly, tend not to get brainwashed by retail shops that try to sell you the most costly cables simply because they would love you to enjoy as far as possible rather than understanding the needs or requirements of your house cinema setup – don’t be fooled.
Just what exactly HDMI Cable would be best suited 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 think again. High quality manufacture of a cheap HDMI connector cable provides the same results as spending 10x or 20x more.