Domino Classic
Personal hearing system
Features
Digital signal processing
Sound with incredible detail
Encrypted broadband link
Secure from eavesdropping
Easy to use
Be up and running within minutes
Pocket size and super light
Fits discretely in your pocket
Domino Classic is a personal hearing system
that helps you hear better in most everyday
situations, whether you use hearing aids or
just suffer the occasional hearing difficulty.
Easy to use. The system is virtually intuitive
to use. All functions are accessed with the
simple press of a button and there are no
complicated menus to navigate.
Enjoy music and TV. Connect the Domino
Classic transmitter to your TV or stereo
system and enjoy wireless broadband Hi-fi
sound at your own volume.
Digital signal processing. Domino Classic
uses digital state-of-the-art signal processing
technology. As a result, the system delivers
music and speech with incredible detail, even
in difficult listening situations
Long lasting power. The units are powered
with rechargeable lithium-ion batteries, just
like a modern cell phone. So you never need
to worry about buying new batteries.
High quality. Domino Classic is designed
by Bellman & Symfon of Sweden and comes
with a two-year worldwide warranty.
Worry free communication. Domino Classic
uses the 2.4 GHz global frequency standard
for wireless broadband communication, just
like your Wi-Fi computer at work. This means
you can use Domino Classic anywhere in the
world.
The system uses secure 128-bit digital encryption technology which makes it virtually
impossible to eavesdrop.
.
Pocket size and super light. The units are as
small as a modern cell phone and weigh just
2½ oz each. So they can be kept discreetly in
your pocket without weighing you down.
out
in
Wireless
broadband link
Television,
MP3 player, stereo
Speech
Transmitter
Hearing aids,
earphones etc.
Receiver
Speech
Technical specifications
Size and weight
Receiver button and controls
In the box
Height:
3.9", 99 mm
Width:
1.9", 48 mm
Depth:
0.9", 22 mm

BE2250 Receiver unit
Weight:
2.4 oz, 74 grams / unit

BE2270 Transmitter unit
The package, BE8015 includes everything you
normally need in order to use your system.
Tone
Internal mic.
selector
LED indicator
Volume
On/Off
Microphone
BE9142 USB universal charger including
4 mains plugs for EU, GB, US and AU

1.9", 48 mm
0.9", 22 mm
1.9", 48 mm
Headphone output
External sound selector
3.9", 99 mm
Volume/Tone indicator
Charger input
Transmitter button and controls
Input signals
Microphones: Built in omni directional
microphones on both units

External sound source input: 2.5 mm stereo
jack plug (0 dBV max input signal)

Output signals

BE9147 Black canvas travel case

BE9124 In-ear stereo earphones
Pairing
with receiver
LED for
battery status
Microphone

BE9135 Neck straps with safety clasp and polished
stainless steel belt clips
User

manual
Available bundled with BE9159 Neck loop (BE8017)
Line in
Power and battery
On/Off

Headphone socket: 3.5 mm stereo jack plug

Distortion: 0.05% THD (electrical)

Frequency range: 40-10 000 Hz

Tone control: 9 steps

Volume control: 9 steps, cut-off frequency 1.6 kHz
Charging time: 2.5 hours
(With included light weight battery)

Output power: 100 mW (16 Ω load)
Charger input

Built in rechargeable lithium-ion battery on
both units
Operating time: 8-12 hours
(With included light weight battery)


Accessories
The following accessories are available:

BE2250 Additional receiver unit
 BE9122 Stereo headphones
Radio communication

Frequency 2.4 GHz, uses 3 frequencies
Range


25 m indoors, clear line of sight
100 m outdoors, clear line of sight
Characteristics:
Encrypted communication
Automatic channel searching
Coexists with other radio transmitters
operating on the 2.4 GHz frequency band
Acoustic specifications
output using BE9124 earphones
132 dB SPL
Maximum
Gain at full volume using BE9124 earphones
(60 dB SPL input signal):
57.5 dB @ 1kHz
56 dB HFA

Distortion
Using BE9124
Using BE9122
0.08 % THD
0.6 % THD

BE9124 Stereo in-ear earphones

BE9125 Stetoclips

BE9127 Tie-clip microphone
BE9126 Cable kit, 5 m (stereo) incl.
adapter from 3.5 mm stereo tele jack
to RCA (phono)


BE9159 Neck loop

BE9143 USB car charger
Environmental requirements
Regulatory requirements
© 2011, Bellman & Symfon AB
Operating temperature: 32° to 95° F
(0° to 35° C)

Complies with the following requirements:
CE, FCC, RoHS, WEEE, C-Tick and UL
Bellman and Bellman & Symfon are registered trademarks owned by Bellman & Symfon AB, all rights
reserved. All Product designs are patented. Subject
to change without prior notice.

Relative humidity: 5% to 95%
(non condensing)

BE2250_021DAS001_EN
bellman.com/us
In-depth technical information
Features
Technical specifications
Acoustic specifications
 Digital Signal Processing, DSP
 Dimensions: 99 mm (h) x 48 mm (b) x 22 mm (d)
 Maximum output saturation
 Omni directional microphones on both units
 Weight: BE2250: 74 g, BE2270: 70 g
 Dynamic range compressor
 Batteries: Built in rechargeable lithium-ion, 617 mAh
 Using BE9122 Headphones
BE2250: 124.3 dB SPL / BE2270: 124.3 dB SPL (@ 2.5 kHz)
 Dynamic noise reduction
 Operating time: 8-12 hours (fully charged)
 Adaptive feedback manager
 Charging time: 2.5 hours (max)
 Radio transmission using broadband technology
 Uses the non-licensed 2.4GHz ISM band
 One transmitter to one or multiple receivers
 Ext. Mic./Aux. in connector: 2.5 mm stereo tele jack
 Intuitive user interface
 LED light bar for excellent readability
 Clear indication of Volume, Tone, Mic & RF mode
 Low battery warning indicator
 Auxiliary stereo signal input (2.5 mm tele jack)
 Headphones stereo output (3.5 mm tele jack)
 Mix mode mixes sound from transmitter and receiver
 Auto mute when switching between signal sources
 High gloss finish to minimize handling sound
 Requires no individual fitting
 Built-in rechargeable lithium-ion batteries
 BE9142 USB universal charger with 4 mains plugs
for EU, GB, US & AU are included
 BE9147 Black canvas travel case included
 BE9124 Earphones included
 BE9135 Neck straps with safety clasp and polished
stainless steel belt clips included
 Available bundled with BE9159 Neck loop (BE8017)
 Supported configuration
1 Domino Pro transmitter and 1+ Domino Classic
receiver(s) and 1+ Domino Pro receiver(s).
 Non recommended configuration
1 Domino Classic transmitter and 1+ Domino Classic
receiver(s) and 1+ Domino Pro receiver(s).
 Using BE9124 Earphones
BE2250: 132.0 dB SPL / BE2270: 130.5 dB SPL (@ 5 kHz)
 Headphones connector: 3.5 mm stereo tele jack
 Using BE9125 Stetoclips
BE2250: 133.7 dB SPL / BE2270: 133.6 dB SPL (@ 1 kHz)
 Volume and Tone control: 9 steps
 Gain, full volume (1 kHz, 60 dB SPL input signal)
 Power switch: On/Off toggle button
 Using BE9122 Headphones
BE2250: 42.5 dB / BE2270: 44.0 dB
 Mic and RF mode: Separate mode select buttons
 External microphone / Aux in selects automati-
cally when plugged in
 Dynamic Range Compressor
 Dynamic gain range 0-35 dB
Compression
3:1
Expansion
1:1.5
 Attack time
20 (25) ms (≥3 kHz)
 Release time 110 (200) ms (>3 kHz)
 10 channel dynamic noise reduction
 Adaptive phase-invert feedback cancellation
 Digital signal processing
 22 050 kHz sampling frequency
 16 bit resolution in stereo
 Digital radio transmission
 2.4 GHz ISM band, 3 channels
 Automatic channel allocation
 128 bit encryption
 Topology: Point-to-point or point-to-multipoint
 Diversity
2 antennas receive, 1 antenna transmits Rx + Rx/Tx
 Radio range
25 m indoors, clear line of sight
100 m outdoors, clear line of sight
 Transmitter output power: max 25 mW
 Using BE9124 Earphones
BE2250: 55.0 dB / BE2270: 57.5 dB
 Using BE9125 Stetoclips
BE2250: 58.2 dB / BE2270: 64.2 dB
 Gain, full volume (60 dB SPL input signal, HFA)
 Using BE9122 Headphones
BE2250: 46.5 dB / BE2270: 49.0 dB
 Using BE9124 Earphones
BE2250: 51.5 dB / BE2270: 56.0 dB
 Using BE9125 Stetoclips
BE2250: 52.0 dB / BE2270: 59.4 dB
 Distortion
 Using BE9122 Headphones
0.6 % THD
 Using BE9124 Earphones
0.08 % THD
Electrical specifications
 Output power tele-jack 100 mW at 16 Ω load
 Impedance, headphones 8 – 72 Ohm
 Distortion
0.05 % THD
 Dynamic range
95 dB

Frequency range
40 – 10 000 Hz
 Tone control
 Break point at 1.6 kHz
 Tone, high: +10dB@3.15 kHz, -6dB@250Hz
 Tone, mid: flat
 Tone, low: -10dB@3.15 kHz
No bass boost
 Line in sensitivity
0 dBV (maximum input level)
Output using BE9122 Headphones
dB SPL
dB SPL
140
120
130
110
120
dB re 20,0 µPa
dB re 20,0 µPa
130
120
110
100
100
90
80
90
100
1000
Input signal
60 dB SPL
70 dB SPL
10 000
Hz
90 dB SPL
Output using BE9125 Stetoclips
dB SPL
130
dB re 20,0 µPa
Output using BE9124 Earphones
110
100
90
70
100
1000
Input signal
60 dB SPL
70 dB SPL
10 000
Hz
90 dB SPL
80
100
1000
Input signal
60 dB SPL
70 dB SPL
10 000
Hz
90 dB SPL