Ultra Precision Measurment Amplifier

- Precision 23W (4Ω) amplifier for all measurement purposes

- Selectable mains (115V or 230V)

- Ultra high bandwidth

- Ultra low distortion

- Ultra low noise

- Three different gain modes (0dB, 10dB and 20dB)

- Drives all kind of loads (2Ω stable)

- Optional current and voltage sense outputs for high precision impedance measurements

Physical Lab proudly introduces the Ultra Precision Measurement Amplifier. This beast is the best and most versatile measurement amplifier money can buy! The amplifier is suited for all kind of ultra-precise measurement demands. The response of the amplifier is flat (± 0,1dB) from DC to 100kHz! The extended bandwidth allows ultra-sonic measurements and makes it an ideal tool for measuring MEMS, headphones, microphones and microspeakers with high precision. Driving low or complex impedances are handled with ease. Three selectable gain modes (0dB, 10dB and 20dB) ensure the best range for your requirements.The amplifier can be equipped with an extra sensing board for precise current and voltage measurements. The board is providing several extra outputs:

- Direct amplifier output for the DUT

- Mini XLR current sense output

- Mini XLR voltage sense output

Beside of current or voltage measurements the outputs can be used for direct impedance measurements under constant voltage conditions. The voltage sense output has an additional -20dB attenuation if needed.

Rear view with the additional sensing board:

  High-Res picture

Technical specs: