LiveAmp series

Logo LiveAmp
  • Small, wireless EEG amplifier for mobile EEG applications

  • Available channel configurations: 8, 16, 32, 64

  • Expandable with sensor and trigger inputs and battery extension

  • Full compatibility with all our active and passive electrode systems

LiveAmp: Compact wireless EEG amplifiers for mobile EEG applications

LiveAmp is a wearable, 24-bit amplifier (available with 8, 16, 32 and 64 channels). As it is wireless and allows you to store your recorded data internally (i.e. on an exchangeable memory card), there are no mobility limitations. It is easy and intuitive to use and its technical specifications leave nothing to be desired.

LiveAmp

Wireless
    • Easily connects to any Windows® based recording computer
    • Wireless transmission range: up to 10 m indoors and up to 30 m outdoors
    • Recording time: up to 3.5 h with internal battery (extendable via power bank)
Ultra lightweight & compact
    • Weight incl. battery:  60 g (8 – 32 channel versions), 120 g (64 channel version)
    • Dimensions: 83 x 51 x 14 mm (8 – 32 channl versions), 140 x 83 x 18 (64 channel version)
Outstanding signal quality

The amplifier’s recording characteristics are comparable to high-end laboratory EEG systems, e.g.

    • 24 bit A/D conversion
    • Sampling rate: up to 1 kHz at a noise level of less than 2 µVpp with CMR higher than 80 dB (at 50/60 Hz)
Flexibility
    • Can either be used as a referential EEG amplifier or set up as a combined referential and bipolar EEG amplifier
    • Comes with a built in 3-axis accelerometer
    • Can be used in combination with easy to prepare active electrodes (actiCAP slim/snap) for best data quality as well as gel-based passive electrodes (LiveCap)
    • Also compatible with passive sponge-based electrodes (R-Net) or active dry electrodes (actiCAP Xpress Twist) when quick preparation times are crucial
Expandability

If you would like to add physiological signals to your mobile EEG setup, you can expand the amplifier system with a dedicated Sensor and Trigger Extension (STE) that offers 8 trigger in and 8 trigger out ports as well as connection possibilities for up to 8 sensors.

Independence
    • Offers the possibility to store recorded data on the recording computer via wireless transmission, internally (i.e. on an exhangeable memory card) or on the recording computer via a micro memory card
    • Data can be recorded for several hours without interruption, which gives you the potential to record high quality data virtually anywhere, and under any circumstances
LiveAmpLiveAmp 8 and LiveAmp 16
    • Great match for MoBI (Mobile Brain/Body Imaging) and BCI (Brain-Computer Interface) applications when only a small number of EEG channels is needed
    • 8 channel version: Can record a total of 8 channels, referential and/or bipolar
    • 16 channel version: Can record a total of 16 referential channels with a maximum of 8 bipolar channels or 8 referential and 8 bipolar channels

Learn more about our LiveAmp 8 Bundle
LiveAmp 32
    • Great match for MoBI (Mobile Brain/Body Imaging), BCI (Brain-Computer Interface), Sports, Sleep and Cognitive State applications
    • Can record either 32 referential channels or 24 referential and 8 bipolar channels

LiveAmp 64

Learn more about our LiveAmp 32 Bundle
LiveAmp 64
    • Great match for MoBI (Mobile Brain/Body Imaging), BCI (Brain-Computer Interface), Sports, Sleep and Cognitive State applications
    • Can record either 64 referential channels or 56 referential and 8 bipolar channels
    • Allows to re-use existing actiCAP slim active electrode sets and actiCAP snap caps (i.e. by adding two LiveAmp 32 amplifiers and a 64-channel LiveAmp adapter to your lab’s equipment)
    • Provides the added benefit of having two fully functional 32 channel LiveAmp amplifiers

Learn more about our LiveAmp 64 Bundle
EEG/ExG channels
Number/type of channelsLiveAmp 8: LiveAmp 8 can record a total of 8 channels, referential and/or bipolar.
LiveAmp 16: LiveAmp 16 can record a total of 16 referential channels with a maximum of 8 bipolar channels or 8 referential and 8 bipolar channels.
LiveAmp 32: LiveAmp 32 can record either 32 referential channels or 24 referential and 8 bipolar channels.
LiveAmp 64: LiveAmp 64 can recorder either 64 referential channels or 56 referential and 8 bipolar channels.
Measurement range±341.6 mV
Input noise< 2 μVpp (0.01 Hz to 65 Hz at 250 Hz sampling rate)
measured with internal battery and shorted inputs
Input impedance> 200 MΩ (at DC)
impedance of EEG/ExG channels to GND
Differential input impedance> 400 MΩ (at DC)
impedance between two EEG/ExG channels or bipolar EEG/ExG
channels
Common-mode rejection (CMR)> 80 dB (at 50/60 Hz)
Signal couplingDC (there is no high pass filter in amplifier hardware)
Low pass filter in amplifierThird order sinc filter with -3 dB frequency depending on the sample
rate:
- 1,000 Hz: 262 Hz
- 500 Hz: 131 Hz
- 250 Hz: 65 Hz
A/D conversion24 bit
ResolutionApprox. 40.7 nV / bit (= 2*341.6 mV / 224 bit)
Acceleration sensorBuilt-in 3-axis acceleration sensor
Three separate channels (x, y, z)
Measurement range: ±2 g
Resolution: 1 mg/bit, 12 bit
Error: ±0.2 g (±10% of full scale)
Hardware sampling ratesSelect between 250 Hz, 500 Hz and 1,000 Hz.
Note: Maximum wireless bandwidth cannot always be guaranteed due to external interference
Sampling Rate = 1000 HzEEG/ExG channels: Up to 32 channels (this incl. AUX and acceleration)
Sampling Rate = 500 HzEEG/ExG channels: 32 channels or more (this incl. AUX and acceleration)
Data Storage
Data storage- On recording computer via wireless transmission
- On micro memory card
- On recording computer and on micro memory card
Card typeMicro SD® card, class 10
Size of memory card32 GB
Maximum file size on memory card4 GB
Data format on internal memory cardProprietary format; can be converted to generic Brain Products data
format with converter software provided by Brain Products
Wireless transmission
Wireless data transmissionIn 2.402 - 2.480 GHz ISM band
worldwide no restrictions for using this ISM range
Radio frequency output powerMax. 13 dBm (approx. 20 mW)
Wireless transmission rangeIndoor: Up to 10 m (depending on environment)
Outdoor: Up to 30 m
Electrodes
Compatible electrodes- Passive Ag/AgCl based electrodes
- Active actiCAP electrodes
Impedance measurementAvailable for passive and active electrodes and integrated in amplifier
Impedance measurement rangeUp to 500 kOhm
Battery and power supply
Power supplyBuilt-in rechargeable battery; Capacity: 1,000 mAh
Current consumptionMax. 250 mA
Charging timeApprox. 4 hours at 500 mA (for example, USB port of a computer)
Uninterrupted recording time with built-in battery (when fully charged)- 3 hours (wireless data transfer only and passive electrodes)
- 4.5 hours (storage on memory card only and passive electrodes)
Dimensions and weight
LiveAmp 8, 16, 32: Dimensions (W x D x H)83 mm x 51 mm x 14 mm
LiveAmp 8, 16, 32: WeightApprox. 60 g (incl. built-in battery)
LiveAmp 64: Dimensions (W x D x H)140 mm x 83 mm x 18 mm (incl. connectors: 25 mm)
LiveAmp 64: WeightApprox. 120 g (incl. built-in battery)
Further data
Built-in trigger/marker inputYes, 3-pin 2.5 mm phone jack; TTL compatible; active low
LED indicatorsBattery/status LED: green, yellow, red
Wireless LED: blue
LiveAmp USB adapter
USB communicationData rate: 12 MBit/s
USB 2.0 compatible
Input and output voltage5 V
Maximum power transfer5 W
Galvanic isolation2,500 VDC
Dimensions (W x D x H)40 mm x 30 mm x 20 mm
WeightApprox. 30 g
Cable lengthApprox. 50 cm, not detachable
System requirements
Operating systemWindows® 7, 32 and 64 bit
Windows® 8.1, 64 bit
Windows® 10
USB portUSB 2.0 or higher
LiveAmp FirmwareLiveAmp 64: Both LiveAmps should be running firmware version 4.60 or
later.
Software requirementsLiveAmp 8 and 16: BrainVision Recorder version 1.21.0201 or later
LiveAmp 32: BrainVision Recorder version 1.21.0001 or later
LiveAmp 64: BrainVision Recorder version 1.21.0303 or later
Miscellaneous
Suitable for use in MR scanner roomNo
Medical deviceNo
CE markingBrain Products GmbH confirms the compatibility of this product according to the Directive 2014/53/EU (RED) of the European Parliament and the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment.

The Brain Products GmbH confirms the RoHS compliance of this product according to the Directive 2011/65/EU of the European Parliament and the Council of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (recast published in the Official Journal of the European Union on 1 July 2011) as well as all its amendments up to and including the Commission delegated directive (EU) 2015/863 of 31 March 2015 (published in the 0fficial Journal of the European Union on 4 June 2015).
FCC compliance (USA)Yes
IC compliance (Canada)Yes
MIC compliance (Japan)Yes

Getting started

Quick introduction to LiveAmp
YouTube

By loading the video, you agree to YouTube's privacy policy.
Learn more

Load video

Tutorial video on actiCAP slim/snap with LiveAmp
YouTube

By loading the video, you agree to YouTube's privacy policy.
Learn more

Load video

Learn more

Get in touch with us

Recommended add-ons

LiveAmp Sensor & Trigger Extension (STE)

Sensor & Trigger Extension (STE) for LiveAmp

LiveAmp Wireless Trigger

Wireless Trigger for LiveAmp

actiCAP snap

actiCAP slim/snap

R-Net

R-Net

BrainVision Analyzer

BrainVision Analyzer

Browse solutions by product category

Worldwide Caution: Our products are scientific equipment for INVESTIGATIONAL USE ONLY! Medical use e.g. for diagnosis, treatment of disease or other such purposes is strictly forbidden.