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Sole Speaker

$ 1 985

— Unique Up-Cycled Rubber Cabinet

— Limited edition of 35 speakers

— A rich, clear sound experience

Sorry, this product is temporarily out of stock.
Sorry, this product is temporarily out of stock.

Circular Design

The Sole Speaker collaboration manifests the transformation of waste material into a design and audio object, exemplifying how rejected soles from Axel Arigato sneaker production can be upcycled to create the speaker cabinet.


97% Upcycled Sneaker Soles


TS—W Modules

“It has been an eye-opening experience working with Transparent to create this unique loudspeaker.”

— Max Svärdh, Creative Director, Axel Arigato.

The Process

Transparent has a Circular Design Philosophy that runs through every part of the company. While most outcomes of this approach may not be immediately visible to the external world, the Sole Speaker highlights a circular material concept that culminates in the creation of a speaker.

Rubber waste has been used before to make road signs or as a filler in construction. In order to elevate this waste material, we directed our focus toward the fashion industry, specifically the sneaker soles molding process. We realized we could transform this waste material into a cabinet, but to do so, we had to invent an entirely new production process of pressing rubber granulates into a three-dimensional shape.

Solid Sound

The acoustic design of our speakers requires a sufficiently solid cabinet to direct the energy of the magnets to where it should go: the vibrations of the speaker cones. We conducted rigorous testing and experimentation at our partner facility in Portugal, allowing us to design a cabinet that performs at the same high level as our large Transparent Speakers — an impressive achievement for the rubber material.

Although the sound performance and audio quality is on par with its tempered glass sibling, the Sole Speaker has its own sonic character. The sound is rich, deep in the low end, clear mids and with crisp details in the high frequency spectrum."




35 Hz - 20 kHz ±5dB

“The team had to question a lot of so called 'rules' to make this happen, and the result is really a one-of-a-kind product.”

— Per Brickstad, Creative Director, Transparent.

Technical Specifications

Dimensions (W × H × D): 452 × 351 × 132 mm
Weight: 11 kg
L/R Drivers: 2 × 3’’ (Full Range)
Woofer: 1 × 6,5’’
Amplifier: Class D built in (Active)
Output power: 120 W
Sealed Cabinet Volume: 10,2 l
Frequency Response: 35 Hz — 20000 Hz ±3 dB on axis
High Quality Digital Signal Processing (DSP)
Front Controls: Bass, Treble and Volume adjustment on front panel
Line in: 2 × 3,5 mm Mini Jack (front and rear)
Wireless Module Compartment with 5V USB Power outlet
Wireless Module: Bluetooth 5.0 (pre-mounted)
Single or True Wireless (stereo) pairing
3.5 mm port for digital optical and analogue signals
µUSB port for 5V power
RX and TX mode (switch)
Chip: Qualcomm CSR8670C
Codec: aptX LL / SBC / MP3 / AAC
Low Latency: <40ms
Gold-plated contacts for perfect signal transmission
User Manual

Interactive Carbon Footprint

Extending the lifetime of our products is the single most important factor we can do to fight climate change. With smart tech being built into loudspeakers of today they become quickly outdated.

Use the slider below to see how the carbon footprint change if you choose to upgrade or replace your loudspeaker every 5 years.
The climate impact of materials and components are based on the weights of material used in the product, and calculated using generic data from the LCA database Ecoinvent. The calculations include climate impact related to raw material extraction and processing, and manufacturing processes.
The climate impact of assembly is based on an estimated average electricity use for assembling the speaker.
The climate impact of packaging is based on actual packaging weights, and calculated with generic data from the LCA database Ecoinvent.
The climate impact of transportation are calculated based on generic data from the LCA database Ecoinvent. The calculations include transports from suppliers and an estimated transport to customer.
The climate impact during the use phase comes from electricity use. The impact is calculated using a scenario of 500 hours of use per year, a measured energy consumption of each speaker and an electricity mix representing the global average.
The climate impact of waste treatment at the product's end of life is calculated using generic waste treatment scenarios for electronical products, available in the LCA modelling software SimaPro.
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37,39 kg