Alesis iO4 4-Channel, 24-Bit Recording Audio Interface
The iO4 packs power and function into a compact package. No matter which recording software you like, how many microphones and preamps you have, or how large your library of plug-ins and VSTs, you need a way to get audio into your computer.
The iO4 is a compact audio-recording interface for home, project and portable studio recording setups. This four-channel USB device for Mac and PC-based systems enables users to record and monitor four channels in 16-bit mode or two channels in 24-bit mode. The iO4 is compact to comfortably fit into a mobile recording rig, laptop bag or backpack, yet contains high-quality components and circuitry suitable for the studio.
The iO4 has four input channels, each having an XLR microphone input, a 1/4-inch TRS insert for external effects units and a 1/4-inch TS jack that works with line-level sources and can accommodate direct connection of guitars. The iO4 features discrete-design preamplifiers and 48-volt phantom power on each of its four input channels as well for use with virtually all microphones and audio sources.
Producers and musicians will appreciate the ability to connect a second pair of reference monitors or route audio to external effects processors using iO4’s four available output channels. For remote tracking and alternative playback, the iO4 has a 1/4-inch TRS headphone output.