Fully-balanced, dual mono DAC and headphone amplifier with dual femto clocks, upgraded capacitors, resistors, and opamps.The DAC section uses dual Crystek femto clocks and a pair of ESS9018K2M DACs; supports up to 32-bit/384kHz PCM and DSD 128; provides four user-selectable digital filters. Inputs are USB, Toslink, 2x Coax S/PDIF, and AES/EBU; outputs are single-ended RCA or balanced XLR. The dual mono 3000 mW headphone amplifier utilizes ultra low noise quad JFET transistors and dual OPA1612 opamps biased in pure Class A. Headphone outputs are balanced XLR (Neutrik) or 1/4" TRS single-ended; provides three user-selectable voltage and impedance settings. The external linear power supply (LPS) provides a single 12v DC output for the DAC and a USB pass-through to clean the USB power from the computer to the DAC. Includes one 1m LH Labs LightSpeed 1G USB cable and all original packaging. Will come in two packages. In his review on AudioStream, Michael Lavorgna said: “Big effortless rock solid sound. The Geek Pulse Xfi also digs way down into your recordings and comes up with as much nuance as there is to mine. There's a seemingly complete absence of grain or digital hash and music simply sounds like music with no additives or alterations…. If you like your music delivered cleanly, clearly, and precisely with a wonderful sense of the place of the recording, whether in-room or in-ear, think Geek.” Both units are about a year and a half year old and in excellent functional and cosmetic condition.
| 
