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PH-1 & HA-1 Phono Amplifiers From Longdog - The Audiophile Man
New out and UK-built are the Longdog Audio PH-1 Moving Magnet and HA-1 Moving Coil (Bridge) phono stages, Paul Rigby reviews both Both occupying a small footprint chassis (108 x 45 x 160mm), both powered by a wall wart 12V power supply and tipping the scales at around 340g or so, the PH-1 is aimed at moving magnet cartridges while the HA-1 is a bridge unit that connects to the PH-1 and allows you to play moving coil cartridges. The PH-1 makes use of both isolated and regulated power supply technology combined with second stage inductive filtering and third stage active regulation. “High accuracy RIAA equalisation is achieved by the use of precision components throughout,” said owner and designer, Nick Gorham. There are no electrolytic capacitors in the unit, all filtering and smoothing is done using film capacitors. The unit is housed in aluminium casework and features gold-plated RCA sockets. The HA-1 is technically known as a ‘head amp’. This doesn’t mean a headphone amplifier. It’s a bit like a step-up transformer which you attach to a standard moving magnet phono amplifier. When connected, the combo adds 20db of gain and allows you to play moving coil cartridges safely. The …