Activeforever Bellman & Symfon Mino Digital Personal Amplifier - Manual (Page 3)

Features

Digital Signal Processing, DSP
 Built in omnidirectional electret micro-
phone and zoom microphone
 10 channel dynamic range compressor
 10 channel dynamic noise suppression
 Adaptive feedback manager

Intuitive user interface
 LED light bar for excellent readability
 9 step volume control (5 dB/step)
 9 step tone control
 Clear indication of Volume, Tone, Mic & T mode
 Low battery warning indicator
 Telecoil pickup for inductive loops
 Push-to-listen mode (Int. mic and Aux in mixed)
 Auxiliary stereo signal input (2.5 mm tele jack)
 Headphones stereo output (3.5 mm tele jack)
 Auto mute when switching between signal sources
 High gloss finish to minimize handling sound
 Requires no individual fitting
 Built-in rechargeable lithium-ion battery
 Universal charger with included mains plug

BE9135 Neck strap with safety clasp included
 Polished stainless steel belt clip included
Advanced settings
Balance control
Compensates for example for hearing
loss in one ear. 5 dB / step.
Basic attenuation
Limits the maximum output level
Useful for e.g. a child. 3 dB / step.
Stereo/Mono
Only effects the line-in signal. Mono is
used for neck loop and stetoclips.
Bass reduction
Reduces low frequency interference
from fans, road-noise etc.
Output using BE9124 Earphones
130
120
110
100
90
100 1000 10 000
Hz
dB r
e 20,0 µP
a
dB SPL
130
120
110
100
90
80
70
100 1000 10 000
Hz
dB r
e 20,0 µP
a
dB SPL
140
130
120
110
100
90
80
100 1000 10 000
Hz
dB r
e 20,0 µP
a
dB SPL
Input signal
60 dB SPL 70 dB SPL 90 dB SPL
Input signal
60 dB SPL 70 dB SPL 90 dB SPL
Input signal
60 dB SPL 70 dB SPL 90 dB SPL
In-depth technical information
Subject to change without prior notice.
Technical specifications

Dimensions: 99 mm (h) x 48 mm (b) x 22 mm (d)
 Weight: 2.5 ounces (74 grams)

Battery: Built in rechargeable lithium-ion, 617 mAh

Operating time : Up to 18 hours (fully charged)

Charging time: 2.5 hours (max)
 Ext. Mic./Aux. in connector: 2.5 mm stereo tele jack

Headphones connector: 3.5 mm stereo tele jack
 Volume control: 9 steps (5 dB/step)

Tone control: 9 steps

Power switch: On/Off toggle button
 Mic and T mode: Separate mode select buttons

External microphone / Aux in
Selects automatically when plugged in

Dynamic 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)

Dynamic noise reduction
10 channel adaptive noise reduction

Feedback cancellation
Adaptive phase-invert feedback cancellation

Digital signal processing
 22 050 kHz sampling frequency
 16 bit resolution in stereo
Tone control blocking
Makes it easier for some end users
to handle Mino.
Tone control preset
Select preset tone. Used together
with Tone control blocking.
Disable T-coil
Makes it easier for some end users
to handle Mino.
Reset to factory settings
Resets all settings to the default
factory settings.
Output using BE9122 Headphones
Acoustic specifications

Maximum output saturation
 Using BE9122 Headphones
124.3 dB SPL (@ 2.5 kHz)
 Using BE9124 Earphones
132.0 dB SPL (@ 5 kHz)
 Using BE9125 Stetoclips
133.7 dB SPL (@ 1 kHz)

Gain, full volume
(1 kHz, 60 dB SPL input signal)
 Using BE9122 Headphones
42.5 dB
 Using BE9124 Earphones
55.0 dB
 Using BE9125 Stetoclips
58.2 dB B

Gain, full volume
(HFA, 60 dB SPL input signal)
 Using BE9122 Headphones
46.5 dB
 Using BE9124 Earphones
51.5 dB
 Using BE9125 Stetoclips
52.0 dB

Distortion
 Using BE9122 Headphones
0.6 % THD
 Using BE9124 Earphones
0.08 % THD
Electrical specifications

Output power tele-jack 100 mW w. 16 Ω last
 Distortion 0.05 % THD

Dynamic range 90 dB
 Frequency range 40 – 10 kHz

Tone control
 Break point at 1.6 kHz
 Tone, high: [email protected] kHz, -6dB@250Hz
 Tone, mid: flat
 Tone, low: [email protected] kHz, No bass boost

Line in sensitivity
0 dBV (maximum input level)
Output using BE9125 Stetoclips