Octave Audio HP700SE Tube Preamplifier — Black

The HP700SE is Octave’s reference preamplifier — fully balanced circuit, tube output stage, built in Germany with the same level of parts quality and assembly that goes into everything Octave makes at the top of the line. This example is finished in black and has the optional RIAA phono board installed, which adds a dedicated MM/MC phono stage inside the chassis. One box, no external phono stage required. The phono option isn’t an afterthought. Octave designed the RIAA board to the same standard as the rest of the HP700SE’s circuit, and it integrates cleanly into the balanced topology of the preamp. If you’re running a serious analog front end alongside a line-level system, this is the version of the HP700SE to own. This unit served as a demonstration piece. Cosmetically clean, fully functional, and well past the point where the circuit has settled.