The AAO1 is an extremely handy test tone audio oscillator, and a must for everyone\'s audio toolkit. A sweepable -10dB Pad, separate square wave and sine wave outputs with level controls make it easy to create a signal to test the input of any audio device.

- 12V AC adaptor Included

• Effective for testing audio circuits and speaker systems
• Provides a steady-state sine wave and/or square wave at the frequency of your choice
• Suitable for testing and measuring all types of audio circuits or checking the calibration of crossovers
• Tunable from 20 Hz to 20 kHz and variable in gain over a wide range thanks to independent sine and square wave level controls
• Overall -10dB output pad
• Allows connection of an external source of DC control voltage (computer or keyboard instrument) to vary the AA01\'s oscillator frequency
• All Metal Case