"Rupert Neve Designs Shelford Channel, channel strip with transformer gain preamp, di, inductor eq and diode bridge compressor- preamplifier section: mic gain, mic trim, 48v phantom power, phase reversal, locut..."
API Audio 3124V- 4-channel Mic-, Instrument- and Line-Preamp- Classic API Circuit Design- API 2520 Op Amps- switchable Functions per channel: 3:1 Output Transformer Tap Selection, +48V Phantom Power, 20 dB Pad, Pol- LED...