Let’s you drive your amp’s power stage to distortion while sending low power to the speaker, so you can use your combo or power amp as a distortion/overdrive effect without blasting your speaker. You can also use it’s line out jack to connect it to a mixer or sound card input keeping your amp’s sound character in your recordings.
For amps max. 65W with 8 ohms output. Speaker out: 4-16?.
It can become hot if continuously driven at amp max output.