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For nearly 10 years, Loricraft Audio have produced mains voltage power supply units. Put simply these units produce pure mains voltage AC waveforms at very precise frequencies normally 50 Hz or 60 Hz with very stable voltage and low distortion regardless of the quality of the domestic mains supply. Originally these supplies were intended for use with Garrard 301 and 401 turntables, and the new Garrard501. It is now accepted that they improve the performance of other equipment, and increasingly we supply them for use with the source components such as CD players, tapedecks, radio tuners and preamplifiers. Following the success of the original PSU45, PSU 80 and the Garrard501 power supplies, new versions have been developed and recent reviews have shown the magnitude of the improvement they can bring to the performance of classic turntables.
Audio Magazine have just published a series of three articles showing the restoratation of a Garrard 301 by Loricraft Audio from purchase through to great laboratory test results . The Garrard 301 was powered with the best power supply we have ever made for any historical Garrard, the new Garrard 301/401 Archivist - developed from the Reference mains regenerating 501 PSU designed for the Garrard501 turntable. If you own a Garrard 301, a Garrard 401 or a Thorens 124 you need this outstanding new power supply! By taking control of the turnable speed it reduces noise and improves performance. It could be your best update. Martina's first two demonstrations of the PSU Archivist in Germany resulted in sales. You should really ask for more information about the new Generator PSU Archivist at our Internet Shop or your local dealer! PSU 301 AR
The price of the PSU 301 AR from 20 April 2008 is £2999. In 2006 Germany's Hi Fi magazine "Audio" requested a special power supply inspired by the PSU 501 supplied with our Garrard 501 turntable. As they rightly understood, much of the excellence of the 501 is derived from it's power supply. "Audio" also asked for a specially made version for a restored Garrard 301 fitted in the same plinth system design as the 501. In this way they could compare the modern 501 and the vintage 301. This showed that the 501 is a perfected version of the 301 and 401 designs and that the power supply is a large part of it. We have to thank " Audio " as without this very specific request it is probable that a power supply of this sophistication would never have been produced. To put it as simple as possible. The incoming mains electricity is converted into DC electricity (like a huge battery). The desired mains AC electricity is then regenerated to a perfect version of the 230V European voltage standard. Distortion of any kind is kept to 1/1000th part (typically half that or better). These limits are the ones held to be beyond audible limits, therefore perfect. Very fine control of output voltage allows torque adjustment. The early 301 was intended for mono only. By setting to the lowest torque setting stereo with a low playing weight cartridge is possible. Conversely an early 401 needs full output if a high playing weight is used. The speed adjustment range of the PSU 301 AR is as follows. REF a fixed 50 Hz output. ST to adjust all modern records. The other ranges -2,-1 ,1 , 2 are for acoustically recorded 78's . These units are very versatile and can be supplied to stabilise any national supply. They can also enable UK specification Garrard 301 and 401 turntables, with strobes, to operate normally in the USA. This needs to be specified when the order is confirmed. Contact Page - To contact Terry or Martina about any of this equipment, please click on the following link to reach the Contact Page. |
