Orange Acoustic Preamp Twin Channel Acoustic PreampThe Orange Acoustic Pre is the worlds first stereo valve acoustic preamp active DI, offering supreme clarity and unrivalled performance for uncompromising performers. Engineered for both stage and studio use this valve design affords acoustic players the same warmth, natural compression and rich harmonics previously only available to electric guitarists and hi fi audiophiles. Channel A is a unique ECC83 12AX7 valve channel for active and passive