The Sterling SHA4 Headphone Amplifier is ideal for recordists and recording engineers who need a quality amplifier with an assortment of input/output configurations and versatile monitoring options. The flexible dual-source audio inputs provide two discrete headphone mixes per channel, which can be changed at the flip of a switch. The stereo Link function allows for daisy chaining multiple SHA4 headphone amplifiers for easy scalability as your requirements grow or change. The SHA4 can also be used as a desktop device, or mounted on a mic stand with its integrated mic stand adapter. Its robust design and rubberized side caps provide superior durability, ensuring dependable audio-monitoring service for years to come.