EMG Preamplifiers

Motion Lab Systems offers the widest range of EMG and biological signal amplifiers of any manufacturer. All preamplifiers are manufactured to the highest standards in a GMP inspected facility and use only materials that meet current standards for bio compatibility. All of our preamplifiers are made from bio compatible materials and are latex free.

All preamplifiers feature a fixed gain, high input impedance, high common mode rejection, and include high and low pass filters. Each preamplifier is available with one or more different connector and wiring options - details of the connections and pinout can be found here. The preamplifiers support a number of different input options, including fine-wire and discrete Ag/AgCl disposable gel electrodes.

Please contact us for price and availability - most standard x20 and x300 gain preamplifier designs are in stock and can be shipped on receipt of a purchase order or payment via credit card.

Replacement MA100 and MA200 EMG Preamplifiers

The Z03 and Y03 designs are intended for our older MA100 and MA200 system when ordered with the appropriate connector. If you do not see your specific preamplifier listed here then please check our preamplifier cross reference page to see if a substitute is available.

Current Preamplifiers Designs

It is important to note that Motion Lab Systems preamplifiers do not offer any electrical isolation functions as this is a feature built into our EMG systems - there is a direct electrical connection between the preamplifier ground connection and the connector.

MA-411 - A surface preamplifier using medical-grade stainless-steel disk electrodes with a x20 gain.

MA-416 - A preamplifier with thumb-screw or spring adaptors, for discrete gel or fine-wire applications with a x20 gain.

MA-420 - A preamplifier with three leads using snap leads for standard disposable gel electrodes with a x20 gain.

MA-422 - A preamplifier with two leads using snap leads for standard disposable gel electrodes with a x20 gain.

Z03 - A surface preamplifier using medical-grade stainless-steel disk electrodes with a x300 gain.

Y03 - A preamplifier with thumb-screw or spring adaptors, for discrete gel or fine-wire applications with a x300 gain.

We can provide pre-amplifier cables longer than the standard 1.4m. If a longer cable length is requested when the preamplifier is ordered then the additional cost will be $5.88 per additional 300mm to the basic 1.4m length.

If the longer cable length is requested after the preamplifiers have been delivered then the cost is $27 plus $5.88 per additional 300mm. Additional charges may apply if replacement preamplifier connectors are needed.

Note that the x20 gain preamplifiers are electrically compatible with Therapeutics Unlimited EMG systems when fitted with HyperTac D01 3-pin connectors and can be connected directly to the Therapeutics amplifier module (the original TU design has a gain of x35).