A variety of amplifiers are compatible with EEGer. Because of this, it can be difficult to determine which amplifier is the right choice for use with EEGer. Below is a short comparison of the most popular amplifiers available and how they compare to one another. 

Two-Channel Amplifiers

 

Phoenix A202

Pocket Neurobics U-Wiz

Neurobit Optima 2

ThoughtTechnology ProComp2

The A202 has been used alongside EEGer for many years, making it the easiest amplifier to use and troubleshoot. The software is preconfigured to use this amplifier. 

The U-Wiz is a small, low-cost amplifier with great reliability. This amplifier is great for travel due to its small size and robust design.

The Optima 2 is one of the newest amplifiers added to EEGer. Despite its competitive price, this amplifier is remarkably accurate and well constructed. With a simple push-button on/off button, this is a great amp for home-use or as a backup/replacement for an aging amp.

The ProComp2 is one of the original amplifiers compatible with EEGer. 

Using proprietary cables and connectors,this amplifier is not recommended by EEGer Support due to its high-cost and difficult configuration and troubleshooting process.

Pros:

  • FDA-Cleared

  • Input-specific impedance measurements.

  • Easy to troubleshoot.

Cons:

  • Old revision A202s have a higher than average failure rate. We discourage purchasing used A202s for this reason (these issues are no longer present in new devices due to redesigns).

Pros:

  • Accurate and consistent signal despite low price.

  • Small size allows for more flexibility when traveling or in small offices.

  • Active electrode monitoring - clearly shows connection issues.

Cons:

  • Can experience driver issues which can make first-time setup difficult.

  • Only provides per-channel impedance measuring.

  • Can have an ‘offset’ on the impedance channel, making values slightly different than what would be observed with other amplifiers.

Pros:

  • Fast and accurate impedance readings

  • Great build quality, feels sturdy and reliable

Cons: 

  • Requires EEGer4 440s or later to be compatible.

  • Push-button can be confusing to users familiar with plug-and-play devices.

Pros:

  • Small size allows the amplifier to be easily clipped to the client.

  • Allows for other forms of biofeedback when used with ThoughtTechnology software.

  • Sturdy storage case for amplifier and its components.

Cons:

  • High-cost, including proprietary cables and connectors that are equally expensive.

  • Components are fragile and easy to damage, leading to lengthy troubleshooting.

  • Requires batteries, has a power switch, and many cables/connectors that all need to be working - many points of failure.

Four-Channel Amplifiers

 

Phoenix A404

Pocket Neurobics Q-Wiz

Neurobit Optima+ 4

ThoughtTechnology Infiniti

The A404 is like the A202, but in a larger case to allow for two additional channels of training. 

Reliable, this amplifier is used by many EEGer users for advanced four-channel training.

A low-cost four-channel option, the Q-Wiz is a great amplifier to have as a backup device. 

The Q-Wiz has many features that are not compatible with EEGer, such as other forms of biofeedback input (including partial cap support). This makes it a great choice if used alongside other compatible softwares.

Utilizing the same case as the Optima 2, the Optima+ 4 is the smallest four-channel amplifier available on the market. 

With a low price, this reliable amplifier is quickly becoming one of the most popular choices for four-channel use with EEGer.

Like the two-channel ProComp2, the benefit of the Infiniti is apparent when used alongside other compatible softwares.

While the amplifier does work with EEGer for up to four-channels of EEG training, its high cost and expensive peripherals make this an option not recommended by EEGer Support in most situations.

Pros:

  • Input-specific impedance measurements.

  • Easy to troubleshoot.

  • Simple plug-and-play design, no batteries or buttons.

  • Good reputation for reliability.

  • Simple and easy warranty against damages.

Cons:

  • Larger size can make it more difficult to transport.

  • Higher price when compared to the Q-Wiz or Optima+ 4.

Pros:

  • Active electrode monitoring - clearly shows connection issues.

  • Low-cost compared to other four-channel amplifiers.

Cons:

  • Can experience driver issues which can make first-time setup difficult.

  • Only provides per-channel impedance measuring.

  • Impedance readings are not always consistent between channels.

  • Can enter the wrong ‘mode’ in certain situations, which requires the software to be restarted and amplifier reconnected.

Pros:

  • Fast and accurate impedance readings

  • Great build quality, feels sturdy and reliable

  • Low-cost compared to other four-channel amplifiers.

Cons: 

  • Requires EEGer4 440s or later to be compatible.

  • Push-button can be confusing to users familiar with plug-and-play devices.

  • Requires an electrode per reference input, whereas most four-channel amplifiers combine two reference ports. This allows for more flexibility, but requires more electrodes (or stacking jumpers). 

Pros:

  • Allows for other forms of biofeedback when used with ThoughtTechnology software.

  • Sturdy storage case for amplifier and its components.

  • Interesting form factor and good signal accuracy.

Cons:

  • High-cost, including proprietary cables and connectors that are equally expensive (more so than the 2-channel ProComp2).

  • Components are fragile and easy to damage, leading to lengthy troubleshooting.

  • Requires batteries, has a power switch, and many cables/connectors that all need to be working - many points of failure.

Knowledge Base Article Tags:

Amplifier

Getting Started

Hardware

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