Car sound is becoming a critical comfort factor for many owners, especially on long journeys. In the case of the popular hatchback and wagon ล koda Octavia A7The situation with the audio system is ambiguous: from basic solutions to top-end configurations, the difference is enormous. If you hear a deaf, โcottonโ bass and no high frequencies, chances are your car is equipped with a budget acoustics option.
Many car owners mistakenly believe that the problem lies in the head unit, although the root of the evil is often in the design of the speakers themselves. Understanding the architecture of the state system ล koda Octavia A7 This is the first step to getting a high-quality sound without unnecessary costs. In this article, we will analyze in detail what speakers are at the plant, how they are connected and what can be done for the upgrade.
Anatomy of the standard Octavia A7 speaker system
Factory audio system in models Octavia A7 (production 2012-2020) varies depending on the level of equipment. In the basic version, youโll probably find a simple system with 4 speakers located in the front doors and rear shelves. These components are budget-class and are often made from cheap plastics and paper diffusers that degrade rapidly from temperature and humidity changes.
In more expensive trim levels, such as Style or Ambition, a 6 or 8 speaker system can be installed. There are already central tweeters in the windshield racks and, sometimes, a subwoofer under the driver's seat. However, even in rich versions without a branded package Sound System The sound remains mediocre due to the lack of active amplifier and low quality passive filters.
Particular attention should be paid to the fact that standard speakers often have a non-standard shape or require the use of transition rings. Manufacturers of carmakers save on standardization, so replacing speakers may require a small revision of seats. This is an important nuance that many people ignore when installing independently.
- ๐ Front doors: usually 16-16.5 cm speakers (medium frequency) + built-in tweeters.
- ๐ Rear doors: 16 cm speakers, often passive (without a separate amplifier).
- ๐ Center: tweeters in windshield racks (in trim levels with 6+ speakers).
Types of amplifiers and their impact on sound quality
The main factor determining the โsoundโ of the car is not so much the speaker as the amplifier. V Octavia A7 There are several types of audio systems: conventional (without amplifier), system with external amplifier and top-end system. Chinook or Amphion. If you donโt have a separate amplifier unit, itโs integrated into the head unit, which limits power output and dynamics.
Having an external amplifier changes everything. In such systems, the signal from the head unit goes along a digital or reinforced analog bus to a separate unit that powers the speakers. The problem is that standard speakers are often not designed for high power external amplifier and begin to wheez at medium volume. The standard speakers in the Octavia A7 with amplifier often have a 2 ohm resistance, which requires caution when connecting external amplifiers.
When replacing equipment, this parameter must be taken into account. If you put speakers with 4 Ohm resistance in a 2 Ohm system, you get silence or distortion. Conversely, 2 ohm speakers in a 4 ohm system can burn. Checking the connection scheme is a mandatory step before any manipulation.
- ๐ Basic system: amplifier in the head unit (RCD310, RCD510).
- ๐ Powertrain system: A separate unit (usually under the passenger seat or in the trunk).
- ๐ Digital bus: Top-end versions use the MOST protocol to transmit sound.
What acoustics do you plan to install in your car?
- Keep it staffed.
- Budget dynamics 10-15k
- Component system 20-30k
- Top system with satellites
- I don't know yet
Problems with standard speakers and reasons for replacing them
Why is the sound in Octavia A7 often disappoints owners? The main reason is the use of cheap materials for diffusers and suspensions. Over time, rubber or foam materials lose their elasticity and the diffuser no longer moves correctly, resulting in rattling and distortion. This is especially noticeable at low frequencies, where a large amplitude of travel is required.
Another critical issue is the lack of sound insulation in the door panels. The standard speakers are installed on a thin metal door without vibration insulation. When playing music, the metal of the door begins to resonate, creating an unpleasant overtone and โblurringโ the bass. Without additional soundproofing, even expensive speakers will sound bad.
Often, owners are faced with the problem of burnout tweeters in the A-pillars. This occurs due to voltage surges in the on-board network or manufacturing defects. Replacing a single speaker in a rack requires caution, since access is limited, and the plastic of the rack is fragile and easily breaks if dismantled carelessly.
โ ๏ธ Attention: When replacing speakers in the A-pillars Octavia A7 Use a plastic spatula to avoid scratching the decorative trim. Metal tools can leave deep marks that cannot be removed.
- ๐ง Suspension rubber: over time it dries out and cracks.
- ๐ง Door metal: resonates without vibration isolation.
- ๐ง Electrics: oxidation of contacts in connectors over time.
Choosing new speakers: what to look for
When choosing new speakers for Octavia A7 It is important to understand the seat sizes. In front doors the standard is most often used 16.5 cm (6.5 inches), but there are also 13 cm options depending on the year of manufacture and configuration. Rear shelves typically accept speakers of the same size, but installation requires the creation of podiums due to the shape of the shelf.
The most important parameter is sensitivity and power. If you have a stock radio without an amplifier, look for speakers with high sensitivity (90 dB and above). They will play louder at low power. If you have an external amplifier, you can choose more powerful models with an active sound stage.
The component system is the ideal choice for front doors. It consists of a separate tweeter and midrange driver, separated by a crossover. This allows the tweeters to be placed in racks, which significantly improves the sound stage. In a stock system, tweeters are often built into the main speaker cabinet, which limits frequency separation.
โ ๏ธ Warning: Do not buy speakers with a larger than standard magnet if you have limited space behind the door card. B Octavia A7 The space under the speaker may be occupied by the window lift mechanism or wiring.
Let's look at the main selection parameters in the table below:
| Parameter | Value for Octavia A7 | Recommendation |
|---|---|---|
| Size | 16.5 cm (front), 13-16 cm (back) | 16.5 cm with adapter ring |
| Sensitivity | 86-90 dB | 90+ dB for standard radio |
| Power (RMS) | 20-40 W | 50-80 W (with amplifier) |
| Resistance | 2-4 Ohm | 4 ohms for versatility |
To obtain high-quality sound, it is necessary to properly prepare the installation site. Use anti-vibration materials to cover most of the inside surface of the door. This will not only improve the bass, but also remove extraneous sounds from the operation of the mechanisms.
โ๏ธ Preparing to install speakers
The process of replacing speakers: step-by-step instructions
Replacing speakers in Octavia A7 Requires accuracy and special tools. Start by removing the door card. You will need plastic spatulas to pry the clips without breaking them. In the front door, first remove the opening handle and armrest, then carefully snap off the clips around the perimeter.
After removing the card, you will see a standard speaker mounted on a metal bowl. Unscrew the bolts, disconnect the connector and remove the old speaker. If you are installing a new speaker of a different size, be sure to use an adapter ring. Without it, the new speaker may touch the glass or the lift mechanism.
Connecting a new speaker requires attention to polarity. The wire colors in the stock wiring may not match the colors on the new speaker. Use a multimeter or tester to find the plus and minus. Connecting with the wrong polarity will cause the speakers to work out of phase and the bass will disappear.
Polarity check:1. Connect a multimeter to the speaker terminals.
2. Give a short signal (battery).
3. If the diffuser moves forward, the plus is on the plus.
Installing tweeters into racks is the most difficult step. The stand is removed using a plastic spatula, carefully snapping off the clips. Wires to tweeters often run through complex routing, so be prepared to pull new wires through grommets.
Secrets of removing the Octavia A7 door card
The front door has a hidden bolt under a trim cap in the handle. In the back door, the clips often stick to the metal; they need to be pryed with force, but evenly, so as not to break the plastic of the card.
After installing all components and checking operation, reassemble the door in reverse order. Make sure all clips snap into place and there are no gaps. Test the sound at different frequencies to make sure there is no rattling.
The use of vibration isolation and adapter rings is critical to unlocking the potential of the new speakers in the Octavia A7. Without them, even expensive components will sound worse than standard ones.
Sound stage enhancement: tweeters and subwoofer
If you've replaced your main speakers and the sound still seems flat, it's time to consider adding tweeters to your windshield pillars. This radically changes the sound stage, raising the sound to the driver's head. B Octavia A7 This often requires laying new wires if there is no standard wiring.
For deep bass, you can install a compact subwoofer in the trunk. In the rear shelves Octavia A7 There is a place, but standard speakers there often play the role of passive radiators. Installing an active subwoofer in the trunk will require connections to a battery and amplifier, which can be a difficult task for a newbie.
Don't forget to set the equalizer in your head unit. Even the best speakers won't sound right without the right setup. Cut the extra lows on the tweeters and add some highs on the mids. This will create balance and make the sound clear.
- ๐ต Tweeters: installed in racks, require wiring.
- ๐ต Subwoofer: Requires a separate amplifier and space in the trunk.
- ๐ต Equalizer: Adjust frequencies for balanced sound.
Common mistakes when upgrading acoustics
Many owners make the mistake of installing powerful speakers on a stock radio without an amplifier. The result is overheating of the coils, wheezing and rapid failure. Always evaluate the power of your head unit and select speakers with an appropriate power reserve.
Another mistake is ignoring sound insulation. You can spend a huge amount on expensive speakers, but if the door resonates, you won't hear the difference. Vibration isolation is the basis for quality sound, not just an option.
You should also avoid using cheap adapters made of thin plastic. They can crack due to vibration, and the speaker will begin to wobble, creating extraneous sounds. It is better to use metal or high-quality plastic adapters.
โ ๏ธ Attention: Do not try to connect the subwoofer directly to the stock radio without an amplifier. This will lead to burnout of the radio amplifier and expensive repairs.
Before purchasing speakers, measure the seat depth in your car's door frame. In some versions of the Octavia A7, the depth is limited by the window lift mechanism, and standard speakers may not fit without modification.
The result of modernization of acoustics in Octavia A7 there will be not just a loud sound, but a qualitatively new musical picture. Properly selected components, high-quality installation and configuration will turn your car into a comfortable space for listening to music.
Frequently asked questions (FAQ)
Do I need to change the speakers if the sound in the car is good?
If you are completely satisfied with the sound, there is no need to change speakers. However, replacing old speakers with new ones can extend the life of the speaker system and improve the sound quality at high frequencies, even if the difference is not critical.
Is it possible to install 16.5 cm speakers in the rear doors?
Yes, to the back doors Octavia A7 You can install 16.5 cm speakers, but you will need to use an adapter ring. You also need to check whether the speaker will touch the window lift mechanism or shelf.
How do I know if I have an audio amplifier?
The presence of an amplifier can be determined by the markings on the head unit or by the presence of a separate unit under the seat. Also, the amplifier is often labeled "Sound System" or a brand logo (for example, Chinook).
Is it possible to connect new speakers without replacing the radio?
Yes, the new speakers can be connected to the stock radio. The main thing is to choose models with high sensitivity and the right power so that they work correctly with the output power of the standard amplifier.
Is soundproofing necessary when replacing speakers?
Soundproofing is not strictly necessary, but it greatly improves sound quality by eliminating door resonances and improving bass. It is recommended to at least partially vibration insulate the inner surface of the door.