The new SL33 Stereo Program Limiter provides smooth dynamics processing for professional and consumer audio equipment. It features 1/4" balanced and RCA unbalanced inputs and outputs for easy connection to any audio situation. The SL33 is ideal for boosting and maintaining consistent levels during audio recording. At the heart of the SL33 is a powerful compressor/limiter integrated circuit which provides automatic program limiting for unobtrusive and natural level control. A Threshold control has been provided to set the level at which the process engages, and a Makeup Gain control offers output leveling with gain up to 20 db. SPECIFICATIONS: Inputs: 1/4" TRS balanced, RCA unbalanced Outputs: 1/4" TRS balanced, RCA unbalanced Compression Ratio: Program dependent Threshold: Variable; -13 to +6 dB Input Impedance: 10K Ohms bal/unbal Output Impedance: 50 Ohms bal/unbal Max Output Level: + 13 dBV Power: 12 VDC, 50 mA Dimensions: 4" x 3.35" x 1.5" (W x H x D) Weight: 1 lb. This item is only available for shipment in Canada and USA.