How much do you know about the basic setting functions of AV amplifiers?

           How much do you know about the basic setting functions of AV amplifiers?

From a functional point of view, most of the current power amplifier products have the following functions

Electronic crossover (Crossover): There are three options for this function setting: FULL—full tone; HP: high pass—only let the frequency above the crossover point (such as 80Hz) pass, this setting is mainly used for mid-range and high-pitched speakers; LP: Low Pass—Only pass the frequency below the crossover point (such as 80Hz), this setting is mainly used for subwoofers. Some of them are also set as adjustable crossover points, which can be set according to different system designs, and some are fixed at 80Hz, 100Hz, and 120Hz.

How much do you know about the basic setting functions of AV amplifiers?

Signal input (lineinput) selection: There are two input methods: RCA signal (low voltage) and host speaker line (high level). Among them, to obtain good sound quality, you can choose RCA signal input (ideal frequency response and excellent signal-to-noise ratio, but the premise is that the host has RCA output). Amplifier with high level input. In addition, many power amplifier products have one or two sets of signal output (lineouput) to transmit the signal to another power amplifier, which can not only save the cost of the crossover, but also ensure excellent sound quality, because different merchants When the signal output is not enough to distribute, the methods adopted are different, and some processing methods will make the sound quality worse.

Input gain adjustment (Gain): This knob is used to adjust the input voltage of the power amplifier and the signal voltage transmitted by the host to achieve the ideal match state, so as to ensure that the sound will not have any distortion.

Bridged output (bridged): When the power amplifier adopts the bridge connection method, the output power can generally be increased by 2 times, so that it can be used for another purpose (such as used to push the subwoofer) when needed.

Tone adjustment: quite a few products are equipped with bass (Bass) and treble (Tweeter) adjustments, which can be boosted or attenuated at two frequencies of 45Hz and 10KHz respectively. The adjustment range is between 0dB-12dB, which can make the replayed bass more plump , deep, treble more clear and transparent.