Owners Ε KODA Octavia A7 (2013–2020) are often faced with the need to upgrade or replace rear speakers. Standard system Bolero or Amundsen does not always satisfy the requirements of music lovers, and wear of the speakers after 100–150 thousand kilometers is a common problem. In this article we will look at how to choose rear speakers for Octavia A7, avoid installation mistakes and achieve perfect sound without extra costs.

Feature of the model - non-standard seats for rear speakers (165 mm in diameter, depth up to 60 mm), which limits the choice of components. In addition, depending on the configuration (Ambition, Style, RS), connection diagrams and amplifier availability may vary. We analyzed owner reviews, technical data and audio engineer recommendations to collect the latest information in one place.

Types of rear speakers for Octavia A7: what to choose?

Rear speakers in Octavia A7 perform two key functions: reproduction of mid/high frequencies (in coaxial systems) or work as part of component acoustics (with remote tweeters). Let's look at the main options:

  • πŸ”Š Coaxial speakers - the most popular choice for replacing standard ones. Suitable for budget upgrades, as they combine a woofer and tweeter in one housing. Examples: Pioneer TS-A1676F, Alpine SXE-1725S.
  • 🎚️ Component systems - for audiophiles who are willing to spend time on setup. They require installation of separate tweeters (usually on stands or in doors) and crossovers. Optimal for configurations with an amplifier, for example, Focal PS 165.
  • πŸ”‹ Original speakers (OEM) - if the goal is not to improve the sound, but to replace burnt ones. Article numbers of original parts: 5E0 035 486 (left), 5E0 035 485 (right).

Important to consider resistance: in Octavia A7 standard system is designed for 4 ohm, but some radios (for example, Columbus) can work with 2 ohm. Exceeding the power by more than 20% of the standard one (usually 20–30 W RMS) requires the installation of an additional amplifier.

πŸ“Š What type of speakers do you prefer for rear speakers?
  • Coaxial (easy to install)
  • Component (sound quality)
  • Standard (replacement with original)
  • I haven't decided yet

Sizes and compatibility: how not to make a mistake with your choice

Seat for rear speakers in Octavia A7 has a diameter 165 mm, but due to the fastening features, models of the size are also suitable 160–170 mm. Hole depth - up to 60 mm, but when installing speakers with a magnet, more 30 mm The plastic lining may need to be modified.

Parameter Standard value Permissible deviations
Diameter 165 mm 160–170 mm
Depth up to 60 mm up to 70 mm (with modification)
Fastening 4 holes for screws Adapters for custom speakers
Resistance 4 ohm 2–8 ohms (with amplifier)

When choosing larger speakers 165 mm will be required adapter rings (for example, from DLS or Hertz). For models with a depth of more than 60 mm you will have to cut off part of the plastic body of the casing - this does not affect the rigidity, but requires care.

⚠️ Attention: Complete with system Canton (optional for Octavia RS) the rear speakers have a non-standard mount. Before purchasing, check the availability of adapters from the manufacturer.

Rear speaker connection diagram: step-by-step instructions

Connecting new speakers to Octavia A7 depends on the type of head unit and the presence of an amplifier. Let's look at two common scenarios:

  1. Without amplifier (standard radio) Bolero/Amundsen):
    • πŸ”Œ The wires from the speakers go directly to the radio through the connector QUADLOCK (contacts 1/2 - left speaker, 3/4 - right).
    • πŸ”§ Polarity: + on contact with the white mark, βˆ’ - with black.
  2. With amplifier (optional) Sound System):
    • πŸŽ›οΈ The signal goes through an amplifier located under the front passenger seat.
    • πŸ”— Wires from the speakers are connected to the connector T10a (left channel) and T10b (right).

To check operation, use a multimeter in mode 20V DC:

  • Connect the probes to the speaker terminals.
  • Turn on the music on the radio - the voltage should fluctuate in the range Β±5–12 V.

Remove the rear door trim (snap off the clips)

Disconnect the standard speaker connector

Check the polarity of the wires with a multimeter

Connect new speakers via terminals or soldering

Secure the speakers with self-tapping screws (without re-tightening!)

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⚠️ Attention: In models with Columbus and Canton When replacing speakers, an error may occur Audio System Fault. Reset requires a diagnostic scan tool (e.g. VCDS) or disconnect the battery for 10 minutes.

Top 5 speakers for Octavia A7: price/quality ratio rating

Based on tests and owner reviews, we have compiled a rating of rear speakers for Octavia A7, taking into account compatibility, sound and price:

  1. Pioneer TS-A1676F (coaxial, 165 mm, 300 W)
    • βœ… The best choice for a budget replacement (price ~3,500 rubles per pair).
    • βœ… Clear highs and mids, bass depth up to 60 Hz.
  2. Alpine SXE-1725S (coaxial, 170 mm, 250 W)
    • βœ… Easy to install with adapters, suitable for systems with an amplifier.
    • βœ… Minimal distortion at high volumes.
  3. Focal PS 165 (component, 165 mm, 130 W RMS)
    • βœ… Optimal for audiophiles (price ~12,000 rubles per set).
    • βœ… They require crossover settings and correct tweeter positioning.
  4. Hertz DCX 165.3 (coaxial, 165 mm, 100 W RMS)
    • βœ… Italian build quality, durable magnets.
    • βœ… Suitable for systems without an amplifier.
  5. Morel Maximo 6 (component, 160 mm, 120 W RMS)
    • βœ… Best sound balance in its class.
    • ⚠️ Requires modification of the seat (depth 65 mm).

For configurations with the system Canton we recommend original speakers (5E0 035 486/485) or analogues from Dynaudio (for example, Dynaudio Esotec), since the stock amplifier is tuned to a specific impedance.

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Before purchasing, check the compatibility of the speakers with your radio through the service Crutchfield β€” there is a database on cars and acoustics.

Common replacement mistakes and how to avoid them

Even experienced car owners make mistakes when installing rear speakers. Here are the most common:

  • πŸ”Š Wrong polarity - leads to sound imbalance and loss of bass. Always check the labels +/βˆ’ on wires and speakers.
  • πŸ”§ Re-upholstery of self-tapping screws - may deform the speaker housing or plastic casing. Maximum tightening torque - 0.5 Nm.
  • πŸŽ›οΈ Ignoring Amp Setting β€” after replacing the speakers, you need to reset the equalizer settings and calibrate the channel levels.
  • πŸ”‹ Direct connection of powerful speakers (more than 50 W RMS) to the standard radio - this leads to distortion and the risk of amplifier failure.

Another typical problem is noise or crackling after installation. The reasons may be as follows:

  • Poor contact in connectors (oxidation or insufficient soldering).
  • Wires are shorted to the body (check the insulation).
  • Impedance incompatibility (for example, connection 2 ohm speakers to 4 ohm system).

What should I do if there is no sound after replacing the speakers?

1. Check the fuse F37 (10 A) in the block under the steering wheel - it is responsible for the audio system.

2. Reset the radio settings to factory settings (Settings β†’ System β†’ Reset).

3. If there is sound only on the front speakers, check the circuit of the rear channels with a multimeter (there should be a resistance of ~4 Ohms).

4. In systems with Canton The amplifier may need to be re-flashed via VCDS (Please contact your authorized dealer).

Setting up sound after replacement: step-by-step guide

Installing new speakers is only half the battle. To unlock their potential, you need to set up your audio system correctly. Let's start with the basic parameters:

  1. Balance and fader
    • In the radio menu (Settings β†’ Sound β†’ Balance) set the fader to 0 (neutral position).
    • Adjust the balance between the front and rear speakers: for an even sound, the ratio is recommended 60% front / 40% rear.
  2. Equalizer
    • For coaxial speakers, raise the frequencies 100–200 Hz by +2 dB (for bass) and 3–5 kHz +1 dB (for vocals).
    • For component systems, use the preset "Jazz" or "Classical" β€” they are optimized for a wide range.
  3. Amplifier settings (if any)
    • Install gain on 50% and increase gradually, avoiding distortion.
    • Disable loudness - this function artificially raises the bass and treble, which spoils the sound on high-quality acoustics.

For fine tuning, use test tracks:

  • "Sweep Tone" (from 20 Hz to 20 kHz) - check the frequency response.
  • "Pink Noise" β€” volume balancing between channels.
  • "Bass Test" (30–80 Hz) - assessment of the quality of low frequencies.

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After replacing the speakers, be sure to perform a β€œbreak-in” - play music at medium volume for 10–15 hours (no more than 70% of the maximum). This will allow the speaker surround to adapt and extend its lifespan.

Refinement of acoustics: when you need an amplifier and subwoofer

If after replacing the rear speakers the sound remains flat or lacks bass, you may want to consider adding additional equipment. Here are the criteria when it is necessary:

  • πŸ”Š Weak bass - standard speakers Octavia A7 do not reproduce frequencies lower 80 Hz. Solution: subwoofer (eg. Pioneer TS-WX130DA in the trunk).
  • πŸŽ›οΈ Distortion at high volumes - a sign of lack of power. Solution: 4-channel amplifier (e.g. Alpine KTA-450).
  • πŸ”§ Unsatisfactory sound detail β€” component acoustics require a high-quality signal. Solution: CPU (eg. Audison Bit One).

For Octavia A7 optimal modification scheme:

  1. Rear speakers: component system (Focal PS 165).
  2. Front speakers: coaxial (Alpine SXE-1725S) or component ones.
  3. Amplifier: 4 channel (Hertz HDP 4) for front and rear speakers.
  4. Subwoofer: compact (JL Audio 10TW3) in a box under the trunk.

⚠️ Attention: When installing the subwoofer in Octavia A7 Avoid placing the spare wheel in the niche - vibrations can damage the plastic bumper. Optimal location: right side of the trunk (next to the battery).

FAQ: answers to frequently asked questions

Is it possible to install 170mm speakers instead of the standard 165mm ones?

Yes, but you will need adapter rings (for example, from DLS or Metra). It is important that the depth of the new speaker does not exceed 60 mm, otherwise you will have to modify the door trim. For models with depth 65–70 mm (for example, Morel Maximo 6) it is necessary to cut off part of the plastic housing of the casing.

How to check if my Octavia A7 has an amplifier?

The amplifier is installed if:

  • Included in the package: Sound System or Canton.
  • Under the front passenger seat there is a black block with the inscription Amplifier.
  • There is an item in the radio menu Audio Settings β†’ Equalizer β†’ Advanced.

If none of this is present, there is no amplifier, and the speakers are connected directly to the radio.

Which speakers are best for Octavia A7 with Canton system?

The optimal choice is original speakers (5E0 035 486/485) or analogues from Dynaudio Esotec. These models have impedance 2 ohm, which corresponds to the settings of the standard amplifier. Installing Impedance Speakers 4 ohm will lead to a loss of power of 30–40%.

Do I need to change wires when installing new speakers?

In most cases, standard wiring (1.5 mmΒ²) can withstand loads up to 50W RMS. If you install more powerful speakers 60 W or connect the amplifier, replace the wires with 2.5–4 mmΒ² (for example, KnuKonceptz Kable). Pay attention to the contacts - it is better to use soldering instead of twisting.

Why did a hum or crackling sound appear after replacing the speakers?

Causes and solutions:

  • Bad mass β€” check the fastening of the negative wire to the body (optimal place: seat bolt).
  • Interferences from other systems β€” lay the signal wires away from the ignition wiring and the CAN bus.
  • Oxidation of contacts - clean the connectors with alcohol and use a contact lubricant (for example, Liqui Moly Kontakt-Spray).