Features Input Tubes: 2 x 12AT7A NOS GE specially selected by Manley Labs for lo-noise and stable bias Output Tubes: 2 x 6414W NOS USA dual triodes I/O: MANLEY transformer coupled Balanced Inputs and Outputs Gain: 20dB max Limiter Gain FET Limiter:Attack: approx. 100μS; Release: 10mS to 2Sec; Ratio: better than 20:1 Description Product Description Includes 1 Year Free Extended Warranty. The Mastering Version of the SLAM! features the stereo ELOP and FET limiters in tandem dedicated for mastering controlled by precision switches instead of pots. All functions have been expanded and specially tailored for mastering. Proudly from our beginning, we at MANLEY LABS have been closely involved with numerous mastering facilities around the world. For these most demanding engineers in our industry, we have created specialised products such as our all-tube tape repro head amps, digital converters, high-powered vacuum tube monitor amplifiers, through to custom monitoring consoles, all the way up to complete facility design and installation. The Mastering Version of the SLAM! incorporating detented and logable 1/2dB steps built with 1% metal film resistors on sealed gold-contact Grayhill switches is in full production. You can read on the regular SLAM! page all the particulars about the limiters and the general gist of the SLAM! Keep reading on below for specific info about the Mastering Version of the SLAM!