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Wipe off the tubes before first use. Recommended speaker sensitivity: 84dB - 96dB All Raven Audio amplifiers are auto-biasing so you never have to Dimensions: W 19.5" x D 13.5" x H 9.5" be concerned when inserting compatible power tubes, but Weight: 68lbs always use matching pairs.
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PLEASE READ AND FOLLOW THESE WARNING: Liquid – Avoiding Electrical Shocks Do not operate your Raven Audio device if liquid of any kind is IMPORTANT SAFETY PRECAUTIONS spilled onto or inside the unit. Do not operate your Raven Audio device near liquid of any kind spilled, condensed, or contained.