A Review of Hafler’s PH50 and PH60 Phono Preamps and the PH44 Moving Coil Step-Up Transformer

To understand more about the Hafler revival, we delve into some of Hafler’s history and the companies associated with it. In this article, Gary Galo reviews the new Hafler PH50 (designed for moving magnet cartridges) and the PH60 (moving coil) Phono Preamps, as well as the Hafler PH44 Moving Coil Step-Up Transformer. All products come from Radial Engineering, the owner of Jensen Transformers and the Hafler and Dynaco brands, which it bought in 2014. This article was originally published in audioXpress, April 2017.

Many of today’s receivers and preamplifier processors do not have phonograph inputs, so anyone with a vinyl collection will need an external phono preamplifier. Bill Christie decided to build one using a TI high-performance op-amp, since the data sheet already included the schematic for a phono preamplifier. This article was originally published in audioXpress, July 2013.

The new Drawmer MC1.1 monitor pre-amp follows the success of the previous Drawmer MC2.1 monitor controller, this time designed with the project studio market in mind. The MC1.1 shares the same analog circuitry and robust linear power supply, while also featuring a phono input, at an affordable $549.00 MAP price.

Linear Audio 9 is the tenth volume in a series of bookzines dedicated to audio technology and perception. Linear Audio offers a variety of articles written by an international team of authors and accredited academics on a plethora of engaging subjects, from tutorials to circuit and system design, test reports and book reviews.