Grado's model PH-1 phono preamp represents the successful solution to one of the most complex technical challenges in the field of audio that Grado Labs has ever tackled. The company's design goals were to create a truly superb sounding phono preamp that would work equally well with both low and high output cartridges with negligible noise. Furthermore, the phono preamp needed to have ultra-wide band pass, high overload, virtually perfect RIAA amplitude and phase coherency, and very low output impedance. It's no great surprise that Grado succeeded in its design goals, and succeeded wildly. The PH-1's superb performance is right up there with its highly acclaimed phono cartridges, headphones, and the world-renowned RA-1 headphone amplifier. But despite the heavy R&D, the price of PH-1 is surprisingly light. You can pay a whole lot more and still not touch the superior sonics of the affordable PH-1.

High-performance phono section for Moving Magnet and Moving Iron cartridges

Breakthrough equalization circuitry

Superb performance with both low- and high-output cartridges

Negligible noise

Virtually perfect RIAA amplitude and phase coherency