The art of scientifically matched subtraction: Camry and Aiwei two-way frequency, bringing the HiFi effect back to true restoration

A truly complete and excellent car audio system does not come from a simple stack of equipment, but from the performance characteristics and sound style of each piece of equipment in the systemSubtle synergy and complementarity。 In the world of Hi-Fi audio, the matching art of equipment is extremely exquisite, and the wisdom of “cutting the complexity and simplifying it” is respected-that is, the most reasonable and necessary combination is used to achieve the most harmonious and infectious sound performance. For car owners, the ultimate goal of modifying a set of car audio is nothing more than to obtain clear and audible sound quality improvements, and to make the final sound performance accurately meet their aesthetic preferences and listening needs.

 

Detailed explanation of this systematic optimization and upgrade plan:
The core idea of this upgrade is to “precisely strengthen and fill the shortcomings” of the existing system. We replaced the Rainbow SL-C 6.2 two-way package originally installed in the front sound field with the Aiwei two-way unit with more comprehensive performance and more suitable for active crossover driving. The unit will be powered by a Hinex four-channel power amplifierActive frequency division mode independent drive(Two channels push the middle bass, and two channels push the treble), so as to obtain greater control and freedom of adjustment. In the subwoofer part, the original American DD 8-inch sealed box that the owner had been quite satisfied with before is retained, but its driving power amplifier is upgraded to the Laifu R series single-channel dedicated bass power amplifier with stronger control and higher efficiency. The audio processing core continues to use the owner’s original Fenlang six-channel DSP processor. The sound source of the system is still provided by the original main engine for the time being. All signal and power wires are uniformly upgraded to Barney brand high-quality products.

It is not difficult to analyze that currently in the entire systemThe biggest performance bottleneck lies in the original engineRelatively weak audio output quality. We expect car owners to replace them with professional-grade audio hosts when they make the next upgrade in the future. By then, the potential of the entire system will be completely released, and the sound quality will be improved by leaps and bounds.

This is the original equipment replaced from the car, witnessing another iteration of the system to better performance.

Core process and detailed records of upgrading construction

 

 

The middle and bass unit in the Aiwei two-way set is installed in the original position of the front door panel, and a special waterproof sealing gasket is installed.

Features high quality Barney horn cable for connection. The installation of the tweeter unit is one of the key steps in building this sound field.

In order to obtain the best mounting angle and directivity, we have customized adjustable mounting cup covers for tweeters.

The ingenuity of acoustic design is reflected here:The performance of this tweeter unit of Aiwei is extremely excellent, and its lower frequency band can be as low as 3000 Hz, which allows it to withstand lower frequency division points and achieve smooth connection with mid-bass. It is with this performance that we dare to adopt this kind of performanceAccurate direct acoustic pointing installation method–The left treble is strictly aligned with the driver’s left ear, and the right treble is strictly aligned with the co-pilot’s right ear. The direct benefit of this modification is that the width and depth of the sound field are greatly expanded, creating a concert hall-like atmosphereSense of open space and accurate imaging。 The interior space of the car is inherently narrow. If audio modification cannot build a sound stage beyond physical boundaries, then the hearing experience will inevitably be depressing and intolerable, and precise directivity is one of the core technologies to solve this problem.

 

 

Laifu’s new R series single-channel power amplifier, which drives American DD subwoofer, has been installed, and the wiring is firm and regular.

The Heinez four-channel power amplifier, which is responsible for driving the active frequency division of the front sound field, and the Fenlang DSP processor, which is responsible for the audio processing of the entire vehicle, are integrated and installed at the bottom of the passenger seat, saving space and facilitating heat dissipation.

When all the hardware installation and circuit testing are completed, it enters the professional tuning stage, which is the most painstaking and fulfilling. When the tuner finished the final fine tuning, it was ten o’clock in the evening. Although it was deep at night, in order to experience the optimized sound as soon as possible, the customer still decided to drive back overnight. This expectation and persistence for a good voice is the biggest motivation for us to focus on it.