Laney IRT-Pulse tube pre amp Laney IRT-Pulse, Ironheart tube preamp and USB interface, 2x ECC83 tubes, controls: gain & volume, hi/lo gain switch,bright switch, dark switch, EQ preshape switch, loudspeaker emualation switch, reamp switch, aux in mini jack, USB audio in/out, DI out, adjustable headphone output 3.5mm, incl. power supply, dimensions: 80 x 95 x 120mm (HxBxT), weight: 0,85kg