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The brand Teenage engineering
Learn more about the Teenage engineering brand and discover the entire catalog.
How to choose your PR System Buying guide
Power, loudspeaker size, price, efficiency, dimensions, passive or active version... Choosing a loudspeaker is no easy task! In this guide, you will find several ways to help you make your choice acco
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Portable pa system
The OB-4 black is a high-end Bluetooth speaker from Teenage Engineering.
OB-4 black highlights
- Magic Radio with 2-hour virtual audio recording and intuitive playback functions.
- 2-way stereo speaker system with 2×38 watt Class-D amplification for immersive sound.
- Integrated FM tuner, high-end Bluetooth, line-in and disc mode with experimental features.
- Integrated Lipo battery for up to a week's autonomy in mobile mode.
- Multifunctional carrying handle, serving as stand and FM antenna.
OB-4 black Key Features
Magic Radio
Rewind a track, slow down an audiobook or relive sports scores with the 2-hour audio loop. An intuitive interface recalls the experience of a classic tape recorder.
Advanced audio technology
Enjoy clear, natural sound with deep bass thanks to the 2-way stereo system, featuring Class-D amplification and optimized bass-reflex ducting.
Disc mode
Explore new experimental features: Ambient for sonic drones, Metronome for precise recording and Karma for musical mantras.
Portable, ergonomic design
The carrying handle doubles as a tilting stand and smart FM antenna, ideal for optimal listening and control.
Long-lasting battery
With battery life of up to a week in mobile use or 8 hours at full power, the OB-4 is the ideal companion on the move.
Optional accessories
Protect your OB-4 with optional leather or nylon covers to maximize portability and durability.
Expert advice
- Intuitive interface and innovative features.
- High-quality sound with excellent battery life.
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Technical sheet
- Product
- High-end Bluetooth speaker with FM radio and sampling functions
- Bluetooth audio
- A2DP / AAC stereo, BT 5 LE
- Disc mode
- 3 pre-created sound loops (including metronome)
- Adjustable
- Motorized volume and tape
- Recording
- Automatic 2-hour continuous sound loop
- Active system
- 2-way stereo speakers with flow-optimized bass-reflex port
- Active filter
- Crossover frequency: 3.5 kHz
- Frequency response
- 52 Hz - 25000 Hz
- Amplifier
- 2 x 38W (4 channels) class D
- Handle
- Gel-damped
- Antenna
- Handle-integrated spiral
- Inputs
- 3.5 mm stereo In (2.8 Vpp at 0 dBFS)
- Battery life
- 72 hours (FM listening), 8 hours (max volume)
- Power supply
- Universal built-in: 100-240V 50~60Hz
- Dimensions
- 232.5 x 284 x 57.5 mm
- Weight
- 1.7 kg
- Color
- Matt black
More specifications
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