What is a headphone amplifier and what is a lossless headphone amplifier for

It's just to make it louder and sound more comfortable.

Hello dear, I've been waiting for you for a long time, I'm glad to answer for you, a lossless headphone amplifier is a device that specializes in providing better sound quality and higher volume for headphones. It can enhance the audio signal by amplifying the current, which can improve the sound quality and volume. The use of lossless headphone amplifiers can bring several advantages:

1.Improve sound quality: Lossless headphone amplifiers can improve the dynamic range and signal-to-noise ratio of audio signals, making them more delicate and clear, while also enhancing the expressiveness of low and high frequencies.

2.Increased volume: Lossless headphone amplifiers can provide higher output power, enabling headphones to exert greater volume and dynamic range.

This is great for entertainment activities such as listening, watching movies, or playing games. 3.Reduced distortion:

The use of lossless headphone amplifiers can reduce the distortion rate, making ** more realistic and natural. This is especially important for hobbyists and professionals. 4.

Support different types of headphones: Different headphones have different impedances and sensitivities, and lossless headphone amplifiers can provide different output impedances and gains to accommodate different types of headphones. In conclusion, lossless headphone amplifiers can improve sound quality, increase volume, reduce distortion, and support different types of headphones, resulting in a better audio experience for users.

OK. Take OPPO mobile phones as an example, enter "Settings Other Settings Accessibility Sound Enhancer" in turn, and you can activate the "Quick Start" function on the first interface of the sound enhancer.

At this time, a humanoid icon will be added in the lower right corner of the virtual button bar, no matter what program you are currently running or what interface you are in, you can click this icon to jump back to the sound booster with one click.

IC. Integrated circuit (abbreviation:

ic；German: integrierter schaltkreis), or microcircuit, microchip, chip Chip (chip) is a way to miniaturize electrical circuits (mainly including semiconductor equipment, but also passive components, etc.) in electronics, and are often manufactured on the surface of semiconductor wafers.

The aforementioned integrated circuits that manufacture circuits on the surface of semiconductor chips are also known as thin-film integrated circuits. Another kind of thick-film integrated circuit (thick-film) integrated circuit is a miniaturized circuit composed of independent semiconductor devices and passive components integrated into a substrate or circuit board.

How to classify headphone amplifiers - How to classify headphone amplifiers.

In the headphone system, adding a headphone power amplifier between the sound source and the headset can improve the sound quality and adjust the timbre direction of the system, which has formed a consensus among headphone enthusiasts. So, how does the crisis amplifier go into categories? Below, I will share with you the classification method of headphone amplifiers, I hope it will be helpful to you!

Categorized from work status:

Class A amplification (Class-A) is also known as Class A amplification. is a working state of the amplifier. At this point, the transistor or tube amplifier will amplify the entire audio signal.

Class B amplification (class-b).

Also known as Class B amplification. is a working state of the amplifier. A transistor or tube amplifier will amplify the audio signal'The positive half of the signal is amplified by another transistor or tube amplifier.

Class AB

Also known as class AB amplification. A working state of the amplifier. In this case, the output stage of the amplifier is amplified as Class A when the output power is low, and converted to Class B amplification when the output power is high.

From the structure, it can be divided into:

There are two types of transistors (stone machines) and electron tubes (bile machines) amplifiers.

From the functional classification, it can be divided into:

A power amplifier, abbreviated as an amplifier, is an electronic device used to enhance the signal power to drive the sound of the speaker. A power amplifier without ancillary functions such as source selection and volume control is called a post-amp.

Preamplifier, pre-amplification and control section before the amplifier, used to enhance the voltage amplitude of the signal, provide input signal selection, tone adjustment and volume control and other functions. A preamplifier is also known as a preamp.

Headphone amplifier, referred to as "ear amp" in HIFI metaphysics.

The function is to amplify the input audio signal and then output it to the headphones.

Note: Because some front-end amplifiers and decoders can output limited power, and high-quality headphones often have high impedance, it is necessary to increase the power of the headphone amplifier so that the ** can be truly restored.

S5534 (Sounds a little rough!) Especially high frequencies! The soundstage performance is good).

AD817 (sound is a bit on the cold side, low frequency volume is insufficient, good resolution).

OPA604 (The sound is relatively waxy, not very refreshing!) Slightly worse resolution! If the front-end is not good, it is recommended to use it).

OPA132 (Beginner's Choice).

OPA227 (the expression voice style is soft!) Enough guts! 8610 is relatively rushed).

AD843 (sound performance close to OPA627, but much lower, cost-effective), but AD843 requires a higher supply voltage to operate.

AD797 (Vocal performance is very good!) The most satisfactory op amp upgrade object is the OPA627 (used to push ER4B) of BB company in the United States, compared with the original AD8610, the overall analysis has been improved! The main improvement is still in the sound field, which is a whole circle!

The voice has become a little looser! Relatively soft (this is the characteristic of BB company's op amp, the sound is soft, the sound is mellow), and pushing 4B will not feel overcharged!

It is recommended to upgrade the buffer stage to 3 times the BUF634 (the original configuration is 2 times), and the function of doubling the buffer is to improve the current output capacity of the headphone amplifier and further reduce the output internal resistance! This performance on earbuds and headphones can improve the control ability during large dynamics! Especially the control when the sound is bursting!

I have tried the K701, a large earphone with a high current output capacity of the push image to the headphone amplifier

Test control has really improved!

Of course, don't expect too much from a headphone amplifier as a panacea for improved sound quality. Among the three links of sound source, headphone amplifier and headphones, the sound source must have the greatest impact on sound quality, followed by headphones, and finally headphone amplifiers. In other words, the headphone amplifier is the icing on the cake, not the elixir of resurrection.

The author's suggestion is that on the basis of owning high-end headphones and mid-to-high-end CD players, it makes sense to buy a headphone amplifier. If the audio source is just a low-end digital audio source with mediocre sound quality such as *** or even VCD, and the headphones are only low-end models below 1,000 yuan, adding a headphone amplifier to the system may not make much sense, and it will not improve significantly.