1.Introductions

           JUST1000 is an important audio test product which is produced by RS after TrustSystem. Its wide range of frequency response(5-80kHz), low ground noise(-119dB), high output(16Vrms), high input(12Vrms), high flatness(20-20kHz ±0.013dB）, high reliability(10 times tests ±0.00005dB) ensure it to be a high precision test platform. It can complete not only routine tests, but some tests which require higher precision, such as speech noise test, HIFI test and the standard verification of some other test platforms.

             When JUST1000 is used with TrustSystem, it has high speed, high reliability and high performance. They can complete routine tests, such as the test of frequency response, THD, Rub & Buzz, sensitivity, phase position, SNR, stepped level sweep and impedance. And they can become signal generator, level meter, display waveform and analyze frequency spectrum. In addition to this, they also have dc component analysis, voice noise analysis and each order harmonic display to perfect the audio system function. What's more, they inherit the wonderful UI of TrustSystem, which can allow users to set up completing a standard audio test circulation in 2-3 seconds. The high performance of them totally meets the need of the laboratory test precision and the high efficiency totally meets the need of the test time limit in production line.

2.Characteristic Parameters

Pic 1 Flatness——Repeating the test 10 times

3. Test Items

4.Characteristics

5. All Parameters