Overview & Comparison of Compatible EEG Amplifiers
EEGer is compatible with many different models of EEG amplifiers, which we believe is important to making neurofeedback accessible to new users in different regions and with different regulatory requirements. EEGer does not require use of a proprietary acquisition device, and the software regularly adds support for new devices as they come available.
While most amplifiers have similar performance and accuracy, certain devices include unique features that can make them easier to use or allow the device to be compatible with specific programs outside of EEGer. A short comparison of the most popular amplifier models is included below. For a full list of compatible EEG amplifiers, refer to the software’s operator's manual.
Neurobit Optima 2 & Optima+ 4
The Optima devices are loved by our support team and is the #1 device we recommend for new clinicians and home-users. The Optima devices have fantastic signal and impedance accuracy and are remarkably well-constructed. They are also affordable compared to similar devices, making them excellent choices for home use systems or as a backup or replacement device.
Like most modern amplifiers, the Optimas are also relatively easy to use and troubleshoot. They have a simple USB connection and a physical power button. Because the amps are so reliable, it allows users to focus more on training and worry less about their equipment.
The four-channel version, the Optima+ 4, includes the same features and high quality of the Optima 2 with additional peripheral inputs that make it compatible with other biofeedback systems.
Pros
Fast and accurate impedance readings.
Great build quality; feels sturdy and reliable.
Low price compared to other amplifiers.
Easy to troubleshoot, few problems.
Cons
Has a physical power button, which can be easy to forget about.
Requires the latest version of EEGer.
Pocket Neurobics U-Wiz, Q-Wiz, and U-Wiz 4
The U-Wiz is a small, low-cost amplifier with great reliability. This amplifier works well for travel due to its small size and robust design, but availability can be limited depending on region. There are two four-channel amplifiers by Pocket Neurobics that are compatible with EEGer, the Q-Wiz and U-Wiz 4.
The U-Wiz 4 functions similiarly to the two-channel U-Wiz, and has the same form factor, but allows up to four-channels of training at once. It also includes welcome design improvements over the older U-Wiz devices. It is priced between the two-channel U-Wiz and the larger four-channel Q-Wiz, which features additional inputs for other biofeedback software that are not present on the U-Wiz models.
Pros
Accurate and consistent signal response times.
Small size, more flexibility when traveling or in small spaces.
Designed to be clipped or attached to the client’s clothing to prevent accidental falls or damage.
Cons
Impedance measurement per-channel rather than per-electrode.
Can have a minor ‘offset’ on impedance measurements.
Troubleshooting signal issues can be more difficult than with other devices.
Phoenix Alpha A202 & A404
The A202 has been used alongside EEGer for many years, making it one of the easiest amplifiers to use and troubleshoot. These devices are no longer in production, but working preowned models can be great choices if available. They have a larger form factor than the U-Wiz or Optima devices which some users prefer from an amplifier.
The A404 is the four-channel variant of the A202 and features the same quality of the A202 in a slightly larger enclosure to accomodate the additional channels.
Pros
FDA-Cleared, which some users require.
Input-specific impedance measurements.
Easy to troubleshoot and configure with EEGer.
Cons
Not currently in production.
No servicing or RMA options available.
Thought Technology ProComp2 & ProComp Infiniti
The ProComp devices are a good choice for users who have the equipment already from another software system, or plan to continue using that software alongside EEGer. These devices use proprietary cables and connectors, which means that these devices have a high cost compared to other amplifiers. The extra cables and connectors also add complexity to using the device, which can make it difficult to configure or troubleshoot if you’re not already familiar with working with the device.
The four-channel version, the ProComp Infiniti, includes additional input channels for EEG training. While not as portable as the smaller ProComp2, the Infiniti is a reliable device once properly configured, which many clinicians appreciate.
Pros
Easy to transport and use, compatible with shorter electrodes.
Can be used for other biofeedback modalities using Thought Technology’s software.
Sturdy storage case for the amplifier and its components.
Cons
Uses proprietary cables and connectors, which add to the cost.
Components can be fragile or easy to damage, often requiring lengthy troubleshooting and expensive replacements.
Requires batteries and configuring of physical switches.
BrainMaster Atlantis 2x2 & Atlantis 4x4
Similiar to the Thought Technology devices, the BrainMaster devices are a great choice for users who have the equipment already from another software system, or plan to continue using it alongside EEGer. The BrainMaster Atlantis devices are high-quality devices with great construction, and are available in both two-channel and four-channel configurations. There are also devices from BrainMaster which include many more channels that can be used with EEGer, like the Discovery devices.
Pros
Good build quality and reliable, with few failures.
Has special features that allow it to work with advanced training plans.
Users coming from other software systems may already have or be familiar with the device.
Cons
Requires a PassKey from BrainMaster to work with EEGer, which has an additional cost associated with it.
Troubleshooting often requires working with BrainMaster directly, which can make it more difficult to resolve issues within EEGer.