LACHAPELL AUDIO 500DT 4500DT DUAL TOPOLOGY CONTROLSCONTROLS• INPUT GAIN: The GAIN controls how much of the source signal is fed to the preamplifer.• OUTPUT GAIN: The OUTPUT GAIN controls the overall output of the preamplifer. By usingboth the INPUT GAIN and OUTPUT GAIN together, a wire variety of sound options arepossible.• BLEND: This contols how much of the signal is fed into each amplification path. Fully clockwisewill send 100% of the signal to the solid state OPAMP amplification. Fully counter-clockwise willsend 100% of the signal to the TUBE amplification path.• 48V: This toggle provides a 48V phantom power (DC) for condenser microphones.• PAD: When engaged, the -20dB pad will reduce the signal going into the amplifier stages by-20db. This is useful for recording hot or loud sources. The PAD is inactive when using the Hi-Zinput.• POLARITY: Reverses the polarity of the output line level signal.• HI-Z INPUT: The Hi-Z input provides a direct input for high impedance instruments like guitar orbass.BLENDPADOUTPUT GAININPUT GAINPHANTOMPOWERPOLARITYREVERSEHI-Z INPUT