Rack-mountable power amplifier from Velocity series providing up to 150W per channel stereo and up to 300W mono bridged that was designed in a joint effort between Rocktron and integrated circuitry design engineer Derek Bowers. It is the first commercially available amplifier to be based on current-feedback technology which provides extremely high-speed, wide-bandwidth amplification. The bandwidth of the power amp section is considerably higher than typical amplifiers based on voltage feedback designs therefore providing much more punch and definition than previous designs have allowed for. The amplifier also features the reactance simulation circuitry controlled by the front panel ''Reactance'' control. At the minimum setting of the reactance control, the unit will provide the added punch and improved transient response of the high-speed current-feedback design. As this control is turned up, the amplifier will begin to simulate the interaction that takes place between the tube amplifier and the guitar speaker cabinet. In addition to the high-speed current-feedback design, the amplifier also incorporates Rocktron's unique ''Speaker Reactance Simulation'' circuitry. This concept is unprecedented in a solid-state amplifier and yields the much-sought-after sound of the most impressive tube amplifiers without the added maintenance and cost and weight of a tube amp. In addition, it offers ''Definition'' controls to provide a little bit of edge which is necessary for playing out in the mix. It also has automatic short circuit protection, which detects problems and shuts down the amplifier before any internal damage can be done. Easily accessible individual line fuses further protect the unit's output devices from failure under extreme conditions. Thermostatically controlled cooling system ensures that the internal fan will only turn on when the unit reaches a certain temperature, while the protective ''Overload'' circuit automatically shuts the unit down when plugged into an AC wall outlet providing excessively high line voltage. The amplifier also features silent on/off switching and clip LEDs for each channel. Maximum gain: 36 dB. Noise floor: 75 dBu typical. Dynamic range: 95 dB. Distortion (typical): 0.1% THD. Frequency response: 20 Hz-20 kHz, +0/-3 dB. Dimensions: 483 x 44 x 241 mm, 1U rack-mount. Weight: 7.80 kg.