Brief Comment on Unpacking of AM3D Ear Mask Module

Feiao Spring Conference also released several new earpiece modules for Feiao X7 series players and Q5 series decoding earpiece, including AM3D, AM3.5PRO and the AM3E earpiece module standard for Q5s decoding earpiece released on the same day.

successfully attracted my attention.

AM3.5PRO and AM3E are mainly jack changes, while AM3D really uses brand-new hardware.

AM3D ear amplifier module uses two THX AAA-78 modules. This AAA is not a battery model, but a shorthand for Achromatic Audio Amplifier, which is literally translated as "achromatic audio amplifier" by translation software ". To briefly summarize the description of THX official website, THX AAA series modules are characterized by reduced distortion (Patented feed-forward error correction topology that nulls conventional distortion mechanisms), low power consumption (Minimal bias current and high efficient power management to optimize and extend device battery life) and high power (Enables maximum output power for greater dynamic range and sound pressure level (SPL)).

Feiao AM3D introduction page is simpler and easier to understand, "THX AAA series modules have better audio performance and output efficiency under the same power supply environment, so that you can enjoy high-quality and low-distortion sound effects with you".

In terms of parameters, the performance indicators of AM3D seem to be the same as AM3B. The performance indicators of AM3D in total harmonic distortion (THD), channel separation, frequency response, output impedance and noise floor are better than AM3B. However, other indicators such as output power, signal-to-noise ratio, and peak output voltage are not much different from AM3B. However, the parameters are only for reference. No matter how good the parameters are, it is useless. Listening is the most important.

look at unpacking first:

packaging box uses the AM3B version (also printed with a protruding 4.4mm balance jack), except that the front is pasted with an AM3D logo sticker and the back is replaced with an AM3D barcode, which is the same as other modules sharing the packaging box. However, the THX logo is also printed on the top of the AM3D logo to show that it has been certified by THX.

open the box, it is still the familiar small iron box.

is the same as AM3B, with four warranty cards and replacement screws. The ear module is also covered with plastic bags to avoid accidental wear and tear during packaging. It is very careful in details.

looking at the front of AM3D, I really don't see any difference from AM3B?

turning to the back, you can see the logo of AM3D and the words of THX AAA-78.

remove AM3B, you can see that the 4.4mm balance jacks of AM3B (bottom) and AM3D (top) are different.

changed the AM3D ear module for Feiao X7. After listening to it, we have realized the difference between it and AM3B. First of all, the noise was much less and horrible, so that I suspected at first that my ears were finally deaf... (How could the background of X7 be so clean!)

took a closer look at the official description of AM3D. In addition to replacing the THX AAA-78 module, AM3D is also equipped with four independent power supplies with electronic filtering. I think maybe the THX AAA module and the four-way independent power supply have contributed, but who has contributed more is expected to be analyzed and explained by experts.

, no matter who is responsible for this bottom noise performance, AM3D has performed very well in suppressing bottom noise, which is beyond doubt.

, I picked up Feiao M11 and compared it with Feiao X7 equipped with AM3D. The bottom noise performance of AM3D is better than M11, and the analytical power is also improved compared with AM3B, and the detail restoration performance in turn surpasses M11. In addition, AM3D has significantly less sound and dye, and the listening feeling is more natural and comfortable than M11.

summary

What else do you need with AM3D M11 ~ _(:з "& ang;)_

the system is slower and it is not impossible to use ~ _("& epsilon;:)_

However, AM3D is now out of stock (_)

......

bought it congratulates you on finding the treasure. Those who cannot buy it will turn left to M11 (& omega;<)

using THX AAA-78 module can have such excellent sound quality performance. This can also explain why AM3D's predecessor AM3C (Japanese exclusive version) is very popular in Japan, and even after being out of stock, it was sold to nearly double the original price. It is hoped that Feiao can apply THX AAA series modules to more portable players and decoding earphones to bring better sound quality experience.
hengsiwas released on 2019-06-23 19:23:40 https:// weibo.com/ttarticle/p/show?id = 2309404386426434287252