ŠKODA Superb 2 speakers: how to improve the sound in your car without errors

Car acoustics in ŠKODA Superb 2 (2008–2015) often becomes a weak point even in top trim levels. Owners complain about muffled high frequencies, insufficient bass power and distortion during loud music. The reason lies in the standard speakers, which the Czech manufacturer installed with an eye to budget, rather than Hi-Fi sound.

In this article we will look at all the nuances of Superb 2 acoustics: from the factory characteristics of the speakers to step-by-step instructions for replacing them. You will learn which models are suitable for upgrading, how to avoid common installation mistakes, and what additional components (amplifiers, subwoofers) will help you achieve studio sound. The material is based on the experience of car audio experts and reviews from owners, so there are no abstract tips here - only proven solutions.

Standard ŠKODA Superb 2 speakers: technical parameters and weaknesses

B Superb 2 (body 3T) three types of speakers were installed depending on the configuration:

• 🔊 Front wide (16 cm) - in the door. In basic versions these are cheap paper diffusers without moisture protection, in top versions (Elegance, Laurin & Klement) - with polypropylene cones.
• 🔊 Twitter (2–3 cm) - in the A-pillars or rear-view mirrors (depending on the year of manufacture). Often absent in basic configurations.
• 🔊 Rear coaxial (13–16 cm) - in the rear doors or shelf. In most cases, these are low-quality speakers with distorted sound in the midrange.

The main problems of standard acoustics:

• 📉 Low sensitivity (usually 88-90 dB) - requires a powerful amplifier for loud sound.
• 🔧 Poor door sealing — the speakers “hum” in the bass due to metal vibrations.
• 🎛️ No filters - high frequencies “hurt” the ears, and low frequencies “mumble.”

Speaker model	Size	Power (RMS)	Sensitivity	Impedance
Front wideband (base)	16 cm (6.5")	20–30 W	88 dB	4 ohm
Front wide (top)	16 cm (6.5")	40–50 W	90 dB	4 ohm
Twitter	2.5 cm (1")	10–15 W	92 dB	4 ohm
Rear coaxial	13 cm (5.25")	15–25 W	86 dB	4 ohm

⚠️ Attention: Complete with system Canton (optional for Laurin & Klement) the speakers have improved magnets and suspensions, but replacing them is still required for a serious upgrade. Do not confuse them with regular staff ones!

Which speakers to choose for replacement: TOP 5 models for Superb 2

When choosing new speakers for Superb 2 consider three key parameters:

1. Size - the front ones should be 16 cm (6.5"), rear - 13 cm (5.25") or 16 cm (if you are ready to modify the seats).
2. Sensitivity - not lower 90 dB, otherwise you will need an amplifier.
3. Impedance — 4 ohm for compatibility with the standard radio.

The best options in terms of price/quality ratio:

• 🥇 Morel Maximo 6 — coaxial speakers with silk tweeter, ideal for front doors. Pros: Clear highs, deep bass. Minus: a bit expensive (~12,000 rubles per pair).
• 🥈 Focal Access 165CA1 — French quality for reasonable money (~8,000 rubles). Suitable for rear shelf.
• 🥉 Alpine S-S65C — a budget option (~5,000 rubles) with good output at mid frequencies.
• 💰 Hertz DCX 165.3 - premium segment (~18,000 rubles), but the sound justifies the price: detail and powerful bass.
• 🔧 Pioneer TS-A1670F — the best choice for self-installation (~4,500 rubles). Easy to install, universal.

A critical nuance: in Superb 2 the front speakers are mounted with 3 bolts (non-standard pitch 120 mm). Most replacements require an adapter frame or modification to the seat.

Step-by-step instructions for replacing speakers in ŠKODA Superb 2

To replace the front speakers you will need:

Door panel puller (plastic)

Screwdriver T20 and T25

10 mm socket with extension

Soldering iron (for crimping terminals)

Double-sided tape or sealant for vibration isolation -->

Algorithm of actions:

1. Removing the door card:
   • Unscrew the two screws under the door handle (under the decorative cap).
   • Remove the plastic cover around the speaker (pry it off with a puller).
   • Unfasten the clips around the perimeter of the panel (starting from the bottom corner).
2. Removing the old speaker:
   • Unscrew the 3 mounting bolts (10 mm head).
   • Disconnect the terminals, noting the polarity (usually + marked in red).
3. Installing a new speaker:
   • Check the compatibility of the fasteners. Use a transition frame if necessary.
   • Connect the terminals, insulate the connections with heat shrink.
   • Secure the speaker with bolts, after applying vibration insulation to the metal of the door.

⚠️ Attention: When installing coaxial speakers with remote tweeters (for example, Focal Access) you will need to drill a hole in the door card for the wire. Do this carefully so as not to damage the door wiring!

What to do if the new speaker doesn't fit?

If the seating area is smaller (for example, for a 16 cm speaker in the rear parcel shelf), you can:

1. Expand the hole with a file (carefully so as not to damage the plastic).

2. Use a spacer ring made of plywood or plastic.

3. Install a smaller speaker (for example, 13 cm instead of 16 cm), but this will worsen the sound.

How to improve sound without replacing speakers: 5 working methods

If your budget is limited, you can optimize the standard acoustics:

• 🔧 Door vibration isolation - stick it on Splen or Bitoplast on the inside of the metal. This will eliminate the "boom" in the bass.
• 🎛️ Equalizer settings - in the radio (Menu → Sound → Equalizer) reduce frequencies 100–200 Hz (removes the hum) and raise 8–12 kHz (for clarity of voices).
• 🔌 Replacing wiring — standard wires are thin (cross section ~0.5 mm²). Lay new ones (1.5–2 mm²) from the radio to the speakers.
• 🔊 Adding Capacitors — installation of a capacitor 1–2 Farad next to the amplifier will smooth out voltage dips.
• 🚗 Interior sealing - door and trunk seals (for example, 3M Thinsulate) will reduce external noise.

Amplifiers and subwoofers for Superb 2: what to choose and how to connect

For a serious upgrade of the sound of the standard radio (Bolero, Columbus) is not enough. You will need:

• 🎚️ 4 channel amplifier (for example, Alpine KTA-450) - for front and rear speakers.
• 🔊 Monoblock (for example, JBL Club A600) — for the subwoofer.
• 📀 Sound processor (optional, for example, AudioControl LC2i) - for frequency correction.

Connection diagram:

1. The signal is taken from the radio through RCA outputs (if they are not there, use Hi-Low converter).
2. The amplifier is mounted under the front passenger seat or in the trunk.
3. The subwoofer is installed in the trunk (the optimal size is 10–12 inches).

Component	Model	Power (RMS)	Price, rubles	Features
4 channel amplifier	Pioneer GM-D8604	100 W × 4	12 000	Compact, suitable for doors
Monoblock	Soundstream PN5.640D	600W × 1	9 500	Good for 12" subwoofer
Subwoofer	JBL Stage 1200W	300 W	8 000	Closed body, deep bass

⚠️ Attention: When connecting the amplifier to the standard radio Columbus with DynAudio protection may be triggered. The solution is to use AudioControl LC7i for integration without loss of functions (for example, parking sensors).

Typical mistakes when upgrading acoustics and how to avoid them

Even experienced car owners make mistakes that spoil the sound or damage the equipment. Here are the most common:

• 🔌 Wrong polarity - if you mix it up + and −, the speakers will work in antiphase (the sound is “smeared”). Check with a multimeter!
• 🔧 Ignoring vibration isolation — without it, the bass “hums” on the body, and not in the speakers.
• 📶 Thin wires - cross section less 1.5 mm² leads to power loss.
• 🔊 Incompatible impedance - speakers 2 ohm to the amplifier 4 ohm will burn.
• 🚗 Poor sealing — cracks in the doors nullify all efforts to improve the sound.

FAQ: Frequently asked questions about ŠKODA Superb 2 speakers

Is it possible to install 16 cm speakers in the rear parcel shelf instead of the standard 13 cm ones?

Yes, but you will need to expand the seat with a file or cutter. An alternative is to use a spacer ring. Please note that shelf depth is limited (6-7 cm maximum), so choose speakers with a shallow magnet (e.g. Alpine S-S65).

How to check if the stock speakers are working if there is no sound?

Possible reasons:

1. Check the fuse F37 (10 A) in the block under the steering wheel - it is responsible for the audio system.
2. Connect the test speaker directly to the radio (bypassing the wiring). If there is sound, the problem is in the wires.
3. Measure the speaker resistance with a multimeter. Indications 3–5 ohms - the norm, 0 ohm - short circuit, ∞ - break.

What are the best speakers for Superb 2 with Canton system?

Available with Canton There are already high-quality speakers, but they can be improved:

• 🔊 Front: Morel Tempo Ultra 6 (will maintain the balance of high/low frequencies).
• 🔊 Twitter: Focal TBM (silk domes for soft sound).
• 🔊 Subwoofer: Helix P Twelve (will complement the missing bass).

Important: When replacing, keep the original crossovers Canton (they are located behind the glove compartment).

Do I need to change the radio when upgrading the acoustics?

Not required, but recommended in two cases:

1. If the standard radio does not have RCA outputs (required Hi-Low converter, which degrades the sound).
2. If you are planning an amplifier with power > 50 W per channel — the standard wiring and outputs of the radio will not work.

Best options for replacement: Pioneer AVH-X5800DAB (with Apple CarPlay) or Alpine iLX-F309 (wireless CarPlay, great DAC).

Which subwoofer to choose for Superb 2 so as not to take up the entire trunk?

Optimal options:

• 📦 Closed case: JBL BassPro SL (flat, placed under the trunk shelf).
• 🔧 Active subwoofer: Alpine PWE-S8 (compact, power 120 W).
• 🚗 Stealth option: subwoofer in the spare tire (for example, Soundstream T5-10).

For Superb 2 with a panoramic roof, it is better to choose a subwoofer with a height of no more than 20 cm, otherwise it will rest against the glass.