Audi A 4 modified three-way audio package, big brands combine exquisite craftsmanship to guarantee the effect
There is a popular saying inside and outside the car audio modification industry, “three points of equipment and seven points of modification”. It is the products of car audio that belong to semi-finished products, and the complex and diversified work of car audio modification makes it difficult to modify. It is very important to test the technical experience of modification and even the collocation of systems. The following modification scheme has been proved by the practice of many modified cars, and it has extremely high cost performance in terms of effect and price. The so-called signature package is by no means in vain, and its good reputation is well-deserved.
Audi A 4 riders were also recommended by their friends for this modification package. Among the BBA car series, the sound effect of Audi’s original car can be regarded as the best among models of the same class. However, there is a common problem in playing the host in the new car series, that is, it is born with interference floor noise. This kind of floor noise is inherent, and the original effect can’t be heard without the audio being amplified by an external power amplifier. However, if the operation and debugging are improper after modification, it will also produce obvious noise floor effect, but it will not affect the sound quality effect. The following is the detailed process of the modification operation.
The package is not equipped with a subwoofer system or a dsp eight-channel system, but only a six-channel system as standard. Car owners all choose and modify it later. The picture below is a family portrait of the modified equipment.

Three-way frequency A-pillar positioning is being modified.



The overall rendering of the A-pillar three-way frequency modification.

Modification of mid-bass door panel horn unit, which is made of horn gasket and customized according to the original factory size. The installation process is related to the performance of sound renderings, and the modification of mid-bass is very important. It is related to whether the mid-low frequencies are clean and elastic, and the thickness of vocal instruments, all of which are related to the installation of this unit.

Horn washer installation

The renderings of the middle and bass unit modification are completed.


The golden yellow sound insulation and shock absorption were installed by the owner in other places before, and the package did not include sound insulation.

This is the British Van den Hau horn cable, which is optional for the owner.

The terminal blocks are all made of professional-grade Acura brand consumables.


Installation of system power supply safety.


Two power amplifiers and dsp audio processor are all installed on the trunk baffle. First, a door panel is customized, and the equipment is installed on the wooden board.



German zero point 8-inch subwoofer, the cabinet is designed and customized by ourselves.

Owners also optionally install hood sound insulation.

