Audio Innovations L1 valve preamplifier in excellent condition and with instructions. The L1 uses a single ECC82 in an Anode Follower circuit. It has a switchable output for matching to the power amplifier(High=170mV RMS, Low=530mV RMS). It also has a switch for changing the ground between floating and not. Frequency response: 9Hz-100KHz (-3dB). Seems ready for DVD-A! Size: 250x295x95(whd)mm. Shipping weight: 4Kg.
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