How to choose a tuner right from wrong
Written by admin on March 21, 2010 – 12:26 am -Selection of a receiver for your system is slightly different from the choice of other components. When the hearings for the other parts, people are primarily concerned with their sound quality, not their technical performance.
For example do if a second audition preamp sounds good, do not worry too much about the technical performance. Will. If it sounds good, so that works well.
Tuners, on the other hand, shows a great variation in their technical performance. Willnot only focused on the receiver noise, the tonal balance, sound staging, the representation of the stamp, etc., but also the basic features like the ability to detect weak or distant stations, reject adjacent stations, provide a signal audio clean, and stay tuned for a station without driving.
Tuner performance in these fields can be characterized by measuring accuracy and makes specific tuner significantly larger than the other audio components.
There is a directcorrelation between the specifications of the tuner and its reproduction of sound. You need to listen to the radio before buying, but it is often possible to separate the models for the inefficient units looking better specifications.
Unlike most audio products, the best high-end tuners, multiple functions, the controls on the front panel and displayed as a sub-end products.
Price range for a recipient of a good mass-market manufacturer, are between $ 400 and $ 1000 Some of the most high-endmodels with mass-market companies offer excellent performance.
Prices range from $ 750 to $ 1200 is very competitive, with many beautiful pieces to choose from. Tuner best cost up to 12,000 $.
The difference between mediocre and excellent tuners.
Good tuners are characterized by their sensitivity and ability to pull in weak stations. The increased sensitivity, better able to capture or eliminate the weaknesses.
This is important in the suburbor rural areas far from the transmitters.
On the other hand, is a sticky feature of great importance for the City Dweller adjacent channel selectivity or the ability to collect on a station without interference from the station next to it on the dial.
This specification defines the ability of a tuner to reject a strong path of two channels away from the desired channel. When the stations are packed closely together, as they are in cities and adjacent channelAlternate channel selectivity is more important than sensitivity.
Equally important for all the listeners of the tuner is the signal-noise ratio, a measure of the difference in dB between the noise floor and maximum signal strength. A receiver with a bad signal to noise ratio will overlay the music with an annoying hiss in the background.
One of the problems with tuner bad reception of the stations will be weak, may not be able to choose a station if the station is close to another drive, havehigh background noise, and be overloaded by nearby FM transmitters or other sources of radio signal.
Many voters have a high content of circuits that automatically detects the signal switches to mono when the signal strength is below a certain level.
The difference between high-mix and mono / stereo switch just described is that the high soprano unique blend circuit is in mono, while the rest of the spectrum in stereo. The issue most of the noise, but keeps the stereo –the separation of most medium and low.
Finally, everyone has a good tuner 75 ohm coaxial antenna input, as well as the most commonly used 300 Ohm flat-head effect. The coaxial input is the signal transfer between the antenna and receiver are used.
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