Universal Audio's 4-710d Twin-Finity microphone preamp is a 4-channel unit with two discrete signal paths per channel -- one high-voltage tube circuit and one discrete solid-state circuit. A simple control allows the user to choose one circuit or the other, along with a phase-aligned blend of any ratio in-between.

This multichannel version also offers eight channels of 24-bit A/D conversion, and four scaled down versions of the 1176 compressor

Features: 75Hz Hi-pass filter, -15dB pad, discrete J-FET DI, 70+dB of gain, 48V phantom power, polarity switch, 8-channel A/D converter, 4x 1176-style compressors