Mcintosh Labs MHP1000 Heapdhones with MHA100 Amplifier The Mcintosh MHP 1000 Headphones and Headphone Amplifier are made for each other Two detachable cables are included: a 1 meter cable with a 3.5mm stereo connector and a 3 meter cable with a 6.3mm stereo connector. The amplifier features our new Headphone Crossfeed Director (HXD) to allow high quality recordings to image like conventional speakers in your headphones, bringing new depth and spatiality to your music.