Check the listing for details. Allen & Heath ZED-24 24-channel Mixer with USB Audio Interface. Condition: Very Good - Refurbished. Listed at 1079.99 USD. The Allen & Heath ZED-24 live mixer gives you the quality you've come to expect from Allen & Heath in a compact 24-channel configuration. DuoPre preamps represent A & H's latest technology, while flexible 3-band EQs on each mono channel feature tailored frequency and response. The ZED-24 gives you a variety of great input options, as well as easy USB connectivity for computer integration. Allen & Heath have made a live mixer that lives up to their stellar reputation with the versatile ZED-24, at a great price.