Many owners of budget sedans are faced with the fact that the standard audio system does not live up to expectations. In the case of Nissan Almera Classic The situation is aggravated by the use of simple speakers that are not capable of transmitting clear sound at high volumes. The sound often becomes flat, low frequencies are lost, and as power increases, characteristic wheezing appears.
Replacement standard speakers - This is one of the most effective ways to improve the acoustic perception in the cabin without radically restructuring the entire audio system. Even installing inexpensive, high-quality coaxial or component systems can dramatically change your music listening experience. It is important to understand that the process does not require complex specialized equipment if you approach the matter carefully.
In this article we will analyze in detail the technical features of the audio system of this model, select the optimal speaker sizes and describe a step-by-step algorithm for dismantling and installation. You will learn what nuances need to be taken into account in order not to damage the door trim and ensure reliable fastening of new elements.
Analysis of standard acoustic system
Factory audio system Nissan Almera Classic designed for a minimal budget, which is reflected in the quality of the components. The stock speakers have a diameter of 130 mm (13 cm) and are installed in the front doors. The rear doors are also equipped with similarly sized speakers, but their quality is often even lower than that of the front doors.
The main problem lies not only in the materials of the diffusers, but also in the lack of adapters for installing larger or higher-quality models. Standard seats are designed strictly for certain dimensions, which limits the choice when upgrading. If you plan to install more powerful speaker systems, you will have to worry about adapter rings or making spacer rings yourself.
Another factor affecting the sound is the lack of sound insulation on the doors. The metal of the body acts as a resonator, distorting the sound at medium and high frequencies. Without additional vibration isolation, even the most expensive speakers will sound worse than they could. This is a fundamental feature of body design that must be taken into account when planning work.
Choosing the Right Speakers
When choosing new speakers for Nissan Almera Classic It is important to decide on the type of acoustics. For most drivers who listen to the radio and popular genres of music, high-quality coaxial speakers are an excellent solution. They are compact, easy to install and provide balanced sound.
If you are a music lover and want to get detailed sound, you should consider the option of component acoustics. In this case, the high-frequency tweeters are installed separately, usually in the windshield pillars or headrests, while the low-frequency tweeters remain in the doors. This allows for a wider soundstage.
- 🔊 Coaxial systems: easy installation, good sound for everyday use, cost from 2000 rubles.
- 🎚️ Component systems: high detail, separate frequency settings, requires more installation time.
- 🔌 Power check: make sure that the rated power of the speakers matches the capabilities of the standard radio.
Pay attention to the speaker sensitivity (SPL). The higher this indicator, the louder the speaker will sound at the same amplifier power. For a standard radio, it is better to choose speakers with a sensitivity above 90 dB in order to get sufficient volume without connecting an external amplifier.
⚠️ Warning: Do not attempt to install 160mm speakers without using spacers. They will not physically fit into standard seats, and an attempt to forcefully install them will damage the door card and window lifter mechanism.
Required tools and materials
Before starting work, prepare all the necessary tools so that the process is not interrupted at the most crucial moment. You will need screwdrivers with different heads (Phillips and flathead), as well as a set of plastic spatulas for removing the trim. The use of metal screwdrivers to remove panels is unacceptable, as this will cause scratches.
To properly install new speakers, you will need adapters (adapter rings). If you're buying standard-sized 130mm speakers, they might fit without them, but if you're looking to install something a little more serious, rings are a must. Also, do not forget about electrical tape, tape and screws for fixation.
☑️ List of required tools
Pay special attention to the wires. Standard wiring in Nissan Almera Classic often made of thin material. When replacing speakers, it is recommended to run new, thicker wires, especially if you plan to use a powerful amplifier. This will reduce signal loss and improve sound quality.
The process of removing the door card
Removing the door trim is the most important step and requires care. Start by removing the window handle (if it is manual) or the armrest. Depending on the configuration, the latches may be hidden under decorative plugs, which must be carefully pryed off with a flat screwdriver.
After removing the visible fasteners, you need to unfasten the plastic clips around the perimeter of the card. This should be done evenly, slightly prying the edge of the panel and pulling it towards you. Do not use excessive force as the clips may break and the plastic may crack. If the clip is stuck, check to see if you forgot to remove the hidden screw.
When all the clips are unfastened, lift the card up to release it from the clasps on the glass. Be careful with the wires going to the power window and mirror control buttons. Carefully disconnect the connectors by pressing the latch and put the card in a safe place.
What to do if the clips are broken?
If you accidentally break the plastic clip during removal, don't panic. Any auto store sells universal sets of clips for foreign cars. Just bring one complete clip with you to try on the size. You can also temporarily use self-tapping screws screwed into plastic plugs, but this is less reliable.
⚠️ Attention: Before removing the door card, be sure to disconnect the car battery. This will prevent accidental shorting of the wiring, which could cause the power window control unit to fail or even cause a fire.
- Coaxial (simplicity)
- Component (quality)
- Regular (savings)
- I'll install an amplifier
Installing new speakers
Once access to the standard speaker is open, it must be dismantled. Unscrew the mounting bolts, which are usually located at three points around the perimeter. Carefully disconnect the wires. If the connectors do not fit the new speakers, you will have to cut them and connect the wires using heat shrink or electrical tape.
If you are using adapters, first screw them to the metal frame of the door, making sure they do not interfere with the operation of the window regulator. Then install the new speaker onto the adapter. It is important that the speaker is firmly fixed, otherwise vibration will create unnecessary noise.
- 🔩 Use rubber pads under the adapter to dampen metal vibration.
- 🎵 Check the polarity of the connection: red wire is positive, black wire is negative.
- 🛡️ Make sure that the speaker diffuser does not touch the door trim when moving.
If you decide to make the spacer ring yourself, use moisture-resistant plywood or plastic. The circle must be precisely cut to the size of the speaker. Apply sealant to the joint between the ring and the door to improve acoustics. This is especially important for low frequencies.
Before final assembly of the door, perform a test play of music. Make sure that the speaker does not hit the trim when the glass moves up and down, and check the operation of all buttons on the door.
Sheathing return and final inspection
After installing the speakers, return the door card to its place. Start by hooking the top edge onto the glass clips, then gently press the clips around the perimeter until they snap into place. Make sure all latches are engaged and the panel is not loose.
Reinstall all decorative caps, handles and armrests. Connect the connectors to the control buttons and check their operation. Install the window regulator handle (if it was removed) and secure it with screws.
At the end of the work, connect the battery and check the operation of the audio system at all volume levels. Listen for the absence of extraneous noise, rattling and wheezing. If the sound is clear, the job is done successfully.
Proper installation of the speakers not only improves the sound, but also prevents the appearance of extraneous noise from vibration of the trim and glass when the car is moving.
Comparison table of popular speaker models
To make it easier for you to make a choice, we have prepared a table with popular speaker models that are perfect for installation in Nissan Almera Classic. Pay attention to their power and sensitivity.
| Model | Type | Power (W) | Sensitivity (dB) | Price (approximate) |
|---|---|---|---|---|
| Alpine S-S65 | Coaxial | 60 (max 200) | 90 | 4500 rub. |
| Pioneer TS-1339R | Coaxial | 45 (max 220) | 88 | 2500 rub. |
| Hertz HSK 165 | Component | 100 (max 200) | 93 | 8000 rub. |
| Supra SFS-6.5 | Coaxial | 30 (max 100) | 89 | 1500 rub. |
The choice of a specific model depends on your budget and sound quality requirements. Cheap models may be suitable for background music, but for active listening it is better to consider options in the mid-price segment.
FAQ: Frequently asked questions
Do I need to soundproof the doors before installing speakers?
Preferred, but not required. Noise isolation significantly improves sound quality by eliminating metal resonance and increasing low-frequency efficiency. Without it, the speakers will work worse, but the sound will still be better than the standard ones.
Is it possible to install 16 cm speakers in the front doors?
Only with the use of spacer rings and, possibly, with adjustment of the seat. The standard hole has a diameter of 13 cm. Installation of 16 cm speakers requires the manufacture of an adapter that will raise the speaker above the door.
How to determine the polarity of wires if there are no markings?
Use a 1.5V battery. Touch the wires to the speaker terminals. If the diffuser moves outward, the polarity is correct (plus on the red wire). If inside, the polarity needs to be changed.
Is it possible to leave the rear speakers as standard?
Yes, many drivers replace only the front speakers, since they form the main sound stage. The rear speakers play a supporting role and are often inaudible when properly adjusting the balance.