What is a talkbox driver?
When somebody refers to a ‘talkbox driver’, what they mean is a horn driver, also known as a compression driver. This is a common PA speaker part. Most full-range PA speakers consist of at least one woofer (usually between 10″ and 15″ in size) and a horn, which handles the mid to high frequencies. If you were to take this speaker apart, you would see a compression driver attached to the back of the horn – which just screws on to the throat of the driver. For talkbox use, there are several models (which I’ll mention later) that are preferred. Not just any horn driver will give a good result – it all depends on the frequency response and power handling of the driver.