01392 829435 Mon–Fri 8.30am–4.30pm

Vehicle audio solutions since 2001

InCarTec Products > Car Audio Speakers
Fitting Icon

Need it fitted?

We also offer installation & fitting support. Ask us about fitting.

Contact our Team

Alpine SPC-L350FB Adventure Audio Flush-Mount Motorhome Speaker (380mm Long / Black)

SPK-ALP-SPC-L350FB
Price: £274.99 (£229.16 ex. VAT)

Upgrade your motorhome or campervan with the Alpine SPC-L350FB Adventure Audio flush-mount speaker. Its two ultra-slim carbon-reinforced drivers deliver wide-dispersion sound from a discreet black aluminium design that can be installed horizontally or vertically. Rated at 50W RMS and 100W peak, with 6-ohm impedance and a 120Hz–20kHz response.

PLEASE NOTE: The SPC-L500FB package contains one speaker. For a balanced stereo installation, order two speakers. Alpine recommends combining a pair with the SPC-D84L subwoofer system for full-range sound and improved bass performance.

Alpine Adventure Audio

Alpine SPC-L350FB Black Flush-Mount Motorhome Speaker

The Alpine SPC-L350FB is a compact black flush-mount speaker developed for motorhomes, campervans and leisure vehicles. Its two ultra-slim carbon-reinforced drivers deliver clear, wide-dispersion sound from a discreet design that integrates neatly into cabin walls, panels and suitable furniture.

50W RMS Continuous power handling
100W Peak Maximum power handling
2 Drivers Carbon-reinforced design
26mm Deep Ultra-slim flush mounting
Alpine SPC-L350FB slim black flush-mount speaker installed inside a motorhome

Purpose-built sound for motorhomes and campervans

Conventional car speakers are often installed inside overhead cupboards or directed towards the floor. This can occupy valuable storage space and produce an unfocused sound stage.

Alpine Adventure Audio In-Cabin speakers provide a slimmer and more flexible solution. The SPC-L350FB can be positioned closer to the listening area, helping produce clearer and more evenly distributed sound throughout the motorhome or campervan cabin.

Key features

Compact flush mounting

Fits neatly into a suitable wall, panel or cabinet surface for a discreet installation with minimal projection.

Two slim drivers

Two ultra-slim carbon-reinforced drivers deliver detailed sound from a compact enclosure.

Horizontal or vertical

Install the speaker in either orientation to suit the available space and desired sound direction.

Wide sound dispersion

The driver arrangement distributes sound effectively across the living area for improved cabin coverage.

Premium black finish

The black aluminium construction and stainless-steel grille complement modern motorhome and campervan interiors.

Head-unit compatible

The 6-ohm design can be used with a compatible head-unit amplifier or a suitable external amplifier.

Alpine SPC-L350FB black speaker showing 50W RMS and 100W peak power handling

Clear and detailed cabin sound

The carefully tuned two-driver design produces smooth, detailed sound while maintaining an extremely slim profile. The speaker handles 50 watts RMS and up to 100 watts peak power.

For a balanced stereo installation, Alpine recommends using the SPC-L350FB in pairs. Adding the matching Alpine SPC-D84L subwoofer extends bass response and creates fuller, more dynamic sound.

Alpine SPC-L350FB speaker shown in horizontal and vertical installation positions

Horizontal or vertical installation

The SPC-L350FB can be installed horizontally or vertically, providing greater flexibility when working around windows, cupboards and other interior fittings.

The removable grille can be repositioned so the Alpine logo remains correctly orientated whichever mounting direction is selected.

Close-up of the Alpine SPC-L350FB black aluminium housing and removable speaker grille

Premium black finish

The black aluminium housing, painted polymer end caps and stainless-steel grille give the SPC-L350FB a high-quality, understated appearance.

Removable end-cap screw covers conceal the mounting points after installation, helping create a cleaner and more professional finish.

Cutaway view of the Alpine SPC-L350FB ultra-slim carbon-reinforced speaker drivers

Ultra-slim carbon-reinforced drivers

Two carbon-reinforced drivers provide clear reproduction through the vocal and high-frequency ranges, with a rated frequency response extending up to 20kHz.

At only 26mm deep, the speaker is particularly useful where the installation space behind the mounting panel is restricted.

Alpine SPC-L350FB cabin speakers paired with an Alpine SPC-D84L motorhome subwoofer

Add an Alpine subwoofer for full-range sound

Alpine recommends combining the In-Cabin speakers with the matching SPC-D84L subwoofer. The subwoofer adds the lower frequencies required for stronger bass and improved musical dynamics.

A compatible Alpine DSP amplifier can provide additional power, control and sound tuning for a more advanced motorhome audio installation.

Range of Alpine Adventure Audio black and silver motorhome speakers in different lengths

Part of the Alpine Adventure Audio range

Alpine Adventure Audio speakers are available in short and long versions, black or silver finishes, and flush-mount or surface-mount configurations. Different models can be combined to create a sound system suited to the available installation spaces within the vehicle.

Suitable applications

Motorhomes

Upgrade living-area audio without sacrificing valuable cupboard or storage space.

Campervans

Add clear cabin sound where conventional deep speakers would be difficult to install.

Leisure vehicles

Suitable for compatible conversions requiring compact, premium-looking speakers.

Installation information

The SPC-L350FB is a flush-mount speaker measuring 380mm × 45mm × 26mm. It requires a suitable 354mm × 38mm mounting aperture.

Check the available mounting space, panel construction and cable route before cutting. The product is supplied individually, so two speakers are required for a conventional left-and-right stereo pair.

Technical specifications

Specification Details
Product type Short flush-mount motorhome speaker
Quantity One speaker
Colour Black
Housing Black aluminium
Driver configuration Two ultra-slim carbon-reinforced drivers
RMS power handling 50 watts
Peak power handling 100 watts
Nominal impedance 6 ohms
Frequency response 120Hz–20kHz
Sensitivity 86.2dB/W/m
Dimensions 380mm × 45mm × 26mm
Required cut-out 354mm × 38mm
Vertical installation dispersion 160° horizontal / 40° vertical
Horizontal installation dispersion 40° horizontal / 160° vertical
Mounting orientation Horizontal or vertical
Amplifier compatibility Compatible head-unit amplifier or suitable external amplifier

Product information

What is included?
  • One Alpine SPC-L350FB flush-mount speaker
  • Removable stainless-steel speaker grille
  • Plastic mounting components
  • Speaker connection cable
  • Installation hardware
This product is supplied as one speaker rather than a pair.
Can it be installed horizontally or vertically?

Yes. The SPC-L350FB supports horizontal and vertical installation. The grille can be repositioned so the Alpine logo remains correctly orientated.

Does this speaker require an amplifier?

The 6-ohm speaker is compatible with suitable internal head-unit amplifiers. A separate amplifier or DSP amplifier can provide improved output and additional tuning control.

Is a subwoofer recommended?

Yes. Alpine recommends using the matching SPC-D84L subwoofer to extend low-frequency performance and create fuller, more dynamic sound.

What is the difference between SPC-L350FB and SPC-L350SB?

Browse our products by category

Carplay & Android Auto
Car Stereos and Fitting Solutions
Car Speakers & Upgrade Kits
Car Audio Amplifiers & Fitting Kits
Car Subwoofers
BLAM Audio
Recoil Audio
Camera Integration (Adding/Retaining)
Commercial, Van and Leisure
Parking Sensors
Dash Cams by brand
Car Audio Accessories
Workshop Trade Parts