The new 10 Band EQ is based on our CP-24 10 Band EQ, now with an added volume channel. You can really fine-tune your tone with this EQ pedal due to the massive range of channels – 31.25Hz, 62.5Hz, 125Hz, 250Hz, 500Hz, 1k Hz, 2k Hz, 4k Hz, 8k Hz, and 16k Hz. With volume and gain control the CP-81 is durable and easy to use. It’s a True Bypass design so it won’t impact your tone when off (although it should be on most of the time). Not only does it works well with the guitar but also other instruments.