the magic radio.
OB–4
OB–4 is our ultra thin 'orthobook' bluetooth loudspeaker with a sound larger than its appearance and really long battery life. discover deep bass and crystal clear, open and natural audio that fills the entire room.
listen using line-in, bluetooth, FM radio and disk mode. the unique mechanized interface is minimal with intuitive functionality. yet ifyou look beneath the surface, there's more than meets the eye.
comes in 7 colors. from $$$ buy now
ultimate portable loudspeaker.
made to be played wherever you need, however you want. outside on the porch, at a picnic, or take it from your home to your holiday. then use your custom mesh carry bag to play OB–4 on the move.
or why not give it a home in your kitchen? the adjustable handle not only houses an extra antenna, but makes it a breeze to carry – it can also be used as a stand for a more relaxed listening position.
natural sound
four tailor-engineered speaker elements deliver pure quality sound and a stereo field that fills the entire room. a flow-optimized bass reflex duct delivers deep natural bass.
four tailor-engineered speaker elements deliver pure quality sound and a stereo field that fills the entire room. a flow-optimized bass reflex duct delivers deep natural bass.
72 hrs listening
on one charge you can listen to the radio for three sleepless days (nothing we recommend) or get 40 hours of listening via bluetooth. all thanks to the high capacity li-on battery.
on one charge you can listen to the radio for three sleepless days (nothing we recommend) or get 40 hours of listening via bluetooth. all thanks to the high capacity li-on battery.
the wireless part
OB–4 is a wireless speaker that supports bluetooth classic for audio streaming and bluetooth low energy for wireless volume control via the orthoplay app and ortho remote.
OB–4 is a wireless speaker that supports bluetooth classic for audio streaming and bluetooth low energy for wireless volume control via the orthoplay app and ortho remote.
slim and portable
big sound in a small package. OB–4's compact size and built-in handle means you can take quality sound anywhere, from your living room to the studio and beyond.
big sound in a small package. OB–4's compact size and built-in handle means you can take quality sound anywhere, from your living room to the studio and beyond.
motorized userinterface.
use your fingers to grab, spin and interact with the sound.digital-motion controlled volume knob and tape reel. we call it the next level of user experience.
use your fingers to grab, spin and interact with the sound.digital-motion controlled volume knob and tape reel. we call it the next level of user experience.
brushless MOTOR, HALL EFFECT SENSOR & INTELLIGENT MOTOR CONTROL ALGORITHM.
turn your mind on with disk mode.
beyond the traditional features like line-in, bluetooth and FM radio, you can find disk mode. this is where we update OB–4 with new features that push beyond the usual. it's our public research space where we
explore and prototype everything that THIS MEDIA INSTRUMENT COULD BE. right now, functions on disk include: ambient, karma, metronome, noise and loop. the orthoplay app is where we reveal the latest updates.
ambient
zone out to a drone generatedby snippets of any audio source.
metronome
sync with metronome, including
808 with pitch adjustment.
808 with pitch adjustment.
karma
30 in 1 musical mantra box.
your spiritual companion.
noise
induce calm and focus with white, brown and pink noise frequencies.
loop
create audio loops, store them and beat match, all on OB–4.
what's all the hocus pocus about?
have you ever wished you could instantly rewind when listeningto the radio to hear the title of the song just played? OB–4 memorizes everything you listen to on an endless looping tape*.
rewind, time-bend, loop, keep time or zone out, all at the flick of your fingertips. on purpose, or by accident. OB–4 let's you listen like never before, and that's just the beginning of its many magic tricks.
*ROLLING 2 HOUR RECORDING
*ROLLING 2 HOUR RECORDING
magic studio monitor.
the low latency line input makes OB–4 the ideal portable studio speaker. plug-in your instruments,a record player, any device that has an audio output. or use the fm signal to connect to OP–1 field.
while you play, use OB–4 as part of the performance. play around with ambient mode, use the metronome to keep time, or loop your beats to create something new. live remix and experiment in the moment.
shop OB–4
yoga mantra
ambient
fm radio
music
metronome
...more
technicalspecifications
speaker principleflow optimized bass reflex ductand semi unified chamber.
frequency range52 – 25000 Hz
dimensions232.5 x 284 x 57.5 mm
weight
1.7 kg
materialsAmorphous Polymer Glass fibre Reinforced PC and Milled Aluminium.
design featuresFine Pitch Tweeter Grille, Gel Dampened Handle, custom Direct Drive Volume Knob and tape dial.
max SPL @ 1 m stereo configuration92 dB unsupported wideband
Bass Capability @ 1 m104 dB SPL supported
frequency range52 – 25000 Hz
dimensions232.5 x 284 x 57.5 mm
weight
1.7 kg
materialsAmorphous Polymer Glass fibre Reinforced PC and Milled Aluminium.
design featuresFine Pitch Tweeter Grille, Gel Dampened Handle, custom Direct Drive Volume Knob and tape dial.
max SPL @ 1 m stereo configuration92 dB unsupported wideband
Bass Capability @ 1 m104 dB SPL supported
active crossover frequency3.5 kHz
configurationstereo 2 + 2
tweeterhigh efficiency ferrofluid cooled neodymium driver.
woofer
long throw high power capacity neodymium driver.
amplifier2 x 38 Wultra high efficiency class D
wirelessBluetooth® classic (AAC)Bluetooth® 5 LEFM radio
inputs3.5 mm stereo in(2.8 Vpp for 0 dBFS)
battery lifenormal volume FM: 72 hoursbluetooth high volume: 8 hours
configurationstereo 2 + 2
tweeterhigh efficiency ferrofluid cooled neodymium driver.
woofer
long throw high power capacity neodymium driver.
amplifier2 x 38 Wultra high efficiency class D
wirelessBluetooth® classic (AAC)Bluetooth® 5 LEFM radio
inputs3.5 mm stereo in(2.8 Vpp for 0 dBFS)
battery lifenormal volume FM: 72 hoursbluetooth high volume: 8 hours
general power requirementsAC 100-240 V 50/60 Hzuniversal built-in power supply
colors
whiteredmatte blacknavyochregrayorange
included accessories:mains power cableantenna
compatible add-ons:ortho remoteshoulder strap
product nameOB–4 (ortho book 4)
HARM code8518220000
country of origin:czech republic
colors
whiteredmatte blacknavyochregrayorange
included accessories:mains power cableantenna
compatible add-ons:ortho remoteshoulder strap
product nameOB–4 (ortho book 4)
HARM code8518220000
country of origin:czech republic
the magic radio.
OB–4
OB–4 is our ultra thin ‘orthobook’ bluetooth loudspeaker with a sound larger than its appearance and really long battery life. discover deep bass and crystal clear, open and natural audiothat fills the entire room.
comes in 7 colors. from $$$
buy now
ultimate portable loudspeaker
made to be played wherever youneed, however you want. the handlenot only houses an extra antenna, but makes it a breeze to carry – it can also be used as a stand for more relaxed listening.
made to be played wherever youneed, however you want. the handlenot only houses an extra antenna, but makes it a breeze to carry – it can also be used as a stand for more relaxed listening.
natural sound
four tailor-engineered speaker elements deliver pure quality sound and a stereo field that fills the entire room. a flow optimised bass reflex duct delivers deep natural bass.
72 hrs listening
on one single charge you can listen to the radio for three sleepless days (nothing we recommend) or get 40 hours of listening via bluetoothall thanks to the high capacitylipo battery.
thewirelesspart
the OB–4 hardware platform supports both bluetooth classicand bluetooth low energy for audio streaming and wireless volume control via the ortho play appand remote.
slim and portable
big sound in a small package. OB–4's compact size and built-in handle means you can take quality sound anywhere, from your living room to the studio and beyond.
motorized user interface.
use your fingers to grab, spin andinteract with the sound. digital-motion controlled volume knob and tapereel. we call it the next level ofuser experience.
use your fingers to grab, spin andinteract with the sound. digital-motion controlled volume knob and tapereel. we call it the next level ofuser experience.
turn your mind onwith disk mode.
this is where we update OB–4with new features that push beyond the usual. right now, functions on disk include: ambient, karma, metronome, noise and loop. the ortho play app is where we reveal the latest updates.
this is where we update OB–4with new features that push beyond the usual. right now, functions on disk include: ambient, karma, metronome, noise and loop. the ortho play app is where we reveal the latest updates.
ambient
zone out to a drone generatedby snippets of any audio source.
zone out to a drone generatedby snippets of any audio source.
metronome
sync with metronome, including808 with pitch adjustment.
sync with metronome, including808 with pitch adjustment.
karma
30 in 1 musical mantra box.your spiritual companion.
30 in 1 musical mantra box.your spiritual companion.
noise
induce calm and focus with white,brown and pink noise frequencies.
induce calm and focus with white,brown and pink noise frequencies.
loop
create audio loops, store themand beat match, all on OB–4.
create audio loops, store themand beat match, all on OB–4.
what's all the hocus pocus about?
OB–4 continuously memorises everything you listen to on an endless looping tape*. rewind, time-stretch and loop at the flick of your fingertips.
*ROLLING 2 HOUR RECORDING
OB–4 continuously memorises everything you listen to on an endless looping tape*. rewind, time-stretch and loop at the flick of your fingertips.
*ROLLING 2 HOUR RECORDING
magic studio monitor
the line input makes OB–4 the perfect portable studio speaker. connect your instruments, a mixer, record player, or any device that has an audio output. go wireless with OP–1 field using FM signal
the line input makes OB–4 the perfect portable studio speaker. connect your instruments, a mixer, record player, or any device that has an audio output. go wireless with OP–1 field using FM signal
OB–4 shop
matte black
$$$ add to cart
$$$ add to cart
red
$$$ add to cart
$$$ add to cart
navy
$$$ add to cart
$$$ add to cart
ochre
$$$ add to cart
$$$ add to cart
gray
$$$ add to cart
$$$ add to cart
orange
$$$ add to cart
$$$ add to cart
white
$$$ add to cart
$$$ add to cart
john lennon 'mind games edition'
explore
explore
technicalspecifications
speaker principleflow optimized bass reflex duct and semi unified chamber.
frequency range52 – 25000 Hz
dimensions232.5 x 284 x 57.5 mm
weight1.7 kg
materialsamorphous polymer glass fibre reinforced pc and milled aluminium.
design featuresfine pitch tweeter grille, gel dampened handle, custom direct drive volume knob and tape dial.
max SPL @ 1 m stereo configuration92 dB unsupported wideband.
bass capability @ 1 m104 dB SPL supported.
active crossover frequency3.5 kHz
configurationstereo 2 + 2
tweeterhigh efficiency ferrofluid cooled neodymium driver.1 X USER'S MANUALwooferlong throw high power capacity neodymium driver.
frequency range52 – 25000 Hz
dimensions232.5 x 284 x 57.5 mm
weight1.7 kg
materialsamorphous polymer glass fibre reinforced pc and milled aluminium.
design featuresfine pitch tweeter grille, gel dampened handle, custom direct drive volume knob and tape dial.
max SPL @ 1 m stereo configuration92 dB unsupported wideband.
bass capability @ 1 m104 dB SPL supported.
active crossover frequency3.5 kHz
configurationstereo 2 + 2
tweeterhigh efficiency ferrofluid cooled neodymium driver.1 X USER'S MANUALwooferlong throw high power capacity neodymium driver.
amplifier2 x 38 Wultra high efficiency class D
wirelessBluetooth® classic (AAC)Bluetooth® 5 LEFM radio
inputs3.5 mm stereo in(2.8 Vpp for 0 dBFS)
battery lifenormal volume FM: 72 hoursbluetooth high volume: 8 hours
general power req.AC 100-240 V 50/60 Hzuniversal built-in power supply.
colorswhiteredmatte blacknavyochregrayorange
included accessories:mains power cableantenna
compatible add-ons:ortho remoteshoulder strap
product nameOB–4 (ortho book 4)
HARM code8518220000
country of origin:czech republic1 X USER'S MANUAL
wirelessBluetooth® classic (AAC)Bluetooth® 5 LEFM radio
inputs3.5 mm stereo in(2.8 Vpp for 0 dBFS)
battery lifenormal volume FM: 72 hoursbluetooth high volume: 8 hours
general power req.AC 100-240 V 50/60 Hzuniversal built-in power supply.
colorswhiteredmatte blacknavyochregrayorange
included accessories:mains power cableantenna
compatible add-ons:ortho remoteshoulder strap
product nameOB–4 (ortho book 4)
HARM code8518220000
country of origin:czech republic1 X USER'S MANUAL