BTR203 Exciter Set - Bluetooth Sound System for Concealed Installation with 3W Amplifier Power

Imagine your furniture, walls, or even your mirror suddenly becoming a loudspeaker – completely without visible technology. With our BTR203 Exciter Set, you can make everyday objects resonate and transform your home into a modern, tidy soundscape. Invisible. Wireless. Magical.

The set consists of a compact Bluetooth receiver (12–24 V) and two high-quality X32-8 Ohm exciters, which are simply glued or screwed onto a surface. Once installed, this surface becomes a soundboard – and music fills your room without you seeing a single speaker.

Why this set is so special

• Invisible speaker: Sound comes from surfaces like walls, doors, ceilings, furniture, or mirrors.

• Easy installation: Plug into the socket, attach exciters, pair – done.

• Minimalist living experience: No boxes, no cable clutter, no visible technology.

• Powerful sound: Warm, full sound, perfect for relaxed background music.

• Usable everywhere: Bathroom, kitchen, bedroom, caravan, sauna (external installation).

• Wireless streaming: Bluetooth 3.0 EDR – compatible with all smartphones, tablets, laptops.

How the system works – simply explained

The two exciters are glued or screwed onto a solid surface.
This surface then takes on the role of a loudspeaker.

This means:
👉 Your furniture becomes a loudspeaker
👉 Your wall becomes a loudspeaker
👉 Your mirror becomes a loudspeaker

The lighter and more planar the material, the more bass.
The stiffer the material, the clearer the highs.

A true sound marvel – and completely invisible.

Installation ideas that inspire

The BTR203 Exciter Set is ideal for anyone with limited space, who wants to hide technology, or who loves a modern, minimalist design.

Popular applications in the home:

• behind the mirror cabinet in the bathroom

• in the kitchen front or in the wall cabinet

• in a living room wall unit or sideboard

• on the sauna ceiling (external installation)

• behind wood or glass surfaces

• in the caravan, camper, or tiny house

Especially practical: The exciters already come with a self-adhesive surface – just attach and enjoy.

Surprising and astonishing sound quality

Although the exciters only receive 3 watts of amplifier power, they produce – depending on the surface – an astonishingly spatial sound that is easily sufficient for background music.

The Exciter X32-8 convinces with:

• surprisingly powerful bass reproduction

• pleasant, warm timbre

• even distribution across the surface

You'll be amazed at how good "invisible music" can sound.

Streaming made easy

Plug in → connect exciters → pair via Bluetooth → enjoy.

Connect your smartphone, tablet, or laptop to the BTR203 and listen to: Spotify, Apple Music, Amazon Music, YouTube, Deezer, SoundCloud, Internet radio via the WHD Multiroom Player app, or music from your hard drive or cloud

Important:
The BTR203 does not function as a multiroom system.
For multiroom, we recommend the (W)LAN receiver WR250 DSP.

10 m range – stable and reliable

The Bluetooth receiver offers a stable range of approx. 10 m.
The exciters are already connected with 2 m speaker cables – simple, tidy, and safe to install.

Perfect for relaxed moments

The BTR203 Exciter Set makes music a part of your living experience:

• soft sounds during a warm bath

• gentle background music while cooking

• motivational beats in the home office

• relaxed sounds in the sauna

• atmospheric music in the caravan

WITHOUT visible speakers.

WITHOUT technology that disturbs the room.

Just sound – as if from nowhere.

Tip: For public areas, we recommend BTR405

If many unfamiliar people are within range of the Bluetooth system (e.g. office, practice, reception room),
the BTR405/BTR405 LV is ideal – with PIN, naming, multiple devices in the same room, etc.

Suitable for the following applications

• at home: sauna (for external installation only - must not be exposed to heat), kitchen, bathroom, office...
• sound reinforcement: anywhere in non-public commercial areas and where the public is not within range.

Scope of delivery:

- 1x Bluetooth Receiver BTR 203
- 2x Exciter X 32-8 with 2m cable each
- 1x Power cable 12...24V with Euro plug

Technical data Exciter X-32: Download (DE), Download (EN)

Technical data BTR 203: Download (DE)

Operating instructions BTR 203: Download (DE/EN)

Positioning aid: https://positionierung.whd.de/

FAQ's about the product: Helpdesk