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Harunomi also drove | the exclusive analysis of the ideal L9 car audio system

Unexpectedly, after releasing the appearance map of the ideal L9 in the evening, @ideal car officially announced the car audio configuration of the L9 in the evening. Now that I think about it, I am afraid that this is the real content that Ideal Auto originally planned to reveal at the second "Wednesday Breaking News Conference", but it was accidentally disrupted by the appearance leak map released by netizens, and only then did such a situation of "breaking the news" twice a day appear.

Harunomi also drove | the exclusive analysis of the ideal L9 car audio system

Ideal Car declares that the Ideal L9 will adopt |" Dolby Atmos 7.3.4" sound system. My readers should be familiar with dolby Atoms, an audio technology known as Dolby Atmos: a surround sound technology that Dolby officially released in 2012 to break through the traditional "sound object" limitations and build on the concept of "sound objects".

Compared to traditional surround sound systems, one of the characteristics of the Dolby Atmos system is the addition of a "sky horn". Thanks to the sound coming from overhead (either a physical horn mounted on the ceiling or a sound reflection technique that 'projects' sound from the ground to overhead), the surround soundstage presented by Dolby Atmos is a 3D soundstage with a front-back, left-right, and high-low relationship, rather than a flat sound field with only front and back left and right for traditional surround sound. As a result, Dolby Atmos' surround effect is far more stereoscopic and more enveloping than traditional surround sound, and each sound object (such as a fighter jet flying overhead, a vehicle passing you from behind) is more precisely positioned.

Harunomi also drove | the exclusive analysis of the ideal L9 car audio system

The so-called "7.3.4" means that the ideal L9's Dolby Atmos system has a total of 7 surround channels, 3 bass channels, and 4 overhead channels. These channels will be played by 21 speakers respectively, and the overall layout can refer to the above figure.

Note: Each channel may be co-replicated by multiple speakers in different positions – for example, the most basic stereo signal is achieved by a pair of trebles, a pair of mid-trebles and a subwoofer located on the main co-pilot A-pillar/door.

Here I would like to focus on a few key points of this sound system:

First I noticed that the figure showed the Ideal L9 with three subwoofers, rather than the one in the back of the usual body. This is because the Ideal Car defines the 8-inch woofer on the main and co-pilot door panels as "subwoofers" rather than ordinary "woofers". According to them, the two woofers are capable of emitting low frequencies below 40Hz and reaching 80W.

In fact, both the size (8 inches) of the two front door woofers and the data for both units really go beyond what we know about traditional door woofers. It is said that this is because the ideal audio engineer believes that the individual subwoofers in the trunk are too far away from the front row, and the attenuation when it emits a low frequency transmission to the front row will be very large, so these two huge woofers installed on the door panel can effectively improve the low frequency performance of the whole car and achieve a shocking bass effect;

Harunomi also drove | the exclusive analysis of the ideal L9 car audio system

Secondly, the ideal L9's innovative center speaker in front of the passengers in the second row also has a center speaker made up of 2 mid-tweeters – a design that is indeed rarely seen on other models. The original intention of setting up this second row center is also similar to the low-frequency gun on the front door: in order to compensate for the transmission from the "distant" front position, the center channel signal has been somewhat attenuated when it is transmitted to the second row of seats, so this second row center is specially set.

Usually, the center speaker will generally focus on the replay of voice/vocals, and its presence can make the 15.7-inch OLED screen folded down from the skylight achieve perfect "audio and picture synchronization", so that the second row passengers can get better audio and video effects!

Harunomi also drove | the exclusive analysis of the ideal L9 car audio system

Third, located near the upper edge of pillarS A and B, respectively, are the 4 "sky horns" that are crucial in the Dolby Atmos system. I've experienced surround sound such as the Cadillac CT6 Panaray before, but I haven't actually heard of an in-car audio system that truly meets Dolby Atmos specifications, so the actual effect can only be speculated.

Harunomi also drove | the exclusive analysis of the ideal L9 car audio system

However, I have confirmed that the person responsible for tuning the car audio system of the ideal L9 is the same Member of the Dirac team I interviewed earlier. Yes, the company responsible for the B&W BowerSyn sound tuning for Volvo Cars!

The company has a true audio "black technology" that digitally regulates/corrects the frequency, reverberation, and coordination of each speaker in a cabin with limited space and extremely complex acoustic environments. Their most amazing ability is that without changing the car audio hardware, they can make the performance of the entire system step by step or even multiple steps through various digital algorithms! In fact, in addition to Volvo, luxury car companies including Rolls-Royce, Bentley, BMW and so on are also Dirac's customers!

Fourth, I have said before that although many users (including me) have complained about the audio performance of the ideal ONE, in fact, I think that the car speaker used by the ideal ONE is of good quality, but it is limited by the limited power amplifier power and cannot exert its full strength. In fact, in the current modification scheme of the ideal ONE sound system, there is a relatively simple but immediate effect of the modification method to add a higher power amplifier to it.

The ideal car may also suffer from the "phobia of insufficient power amplifier", and the power amplifier power of the ideal L9 is as high as 2160W! When I saw this number, I was stunned, because usually the power of the on-board amplifier is generally within kilowatts, and the more advanced systems such as Volvo's Borgward Health are about 1400W, and the sound of the Great Berlin on the Mercedes-Benz is also 1800W... Well, at least on the ideal L9, there will certainly be no "dragging the entire sound system hind legs because of insufficient power".

Harunomi also drove | the exclusive analysis of the ideal L9 car audio system

I have been using the three indicators proposed by BoSE car audio engineering Bud MacLellan to measure the level of a set of car audio:

1. See if the whole sound system can create a complete and real music space;

2. Whether the system can fully display the timbre of all musical instruments;

3. The system has no distortion under loud pressure.

At present, the ideal L9's 7.3.4 sound system seems to be able to use "Dolby Atmos" and "Dirac tuning" to meet indicator 1; use the ultra-high power of 2160W to solve indicator 3; and whether the 21 speakers and other related accessories used in this system have enough quality to meet indicator 2...

Anyway, before I could hear it with my own ears, everything was unknown. However, I am really looking forward to this system...

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