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Summary of Contents for Doshi Evolution Series
- Page 1 EVOLUTION TAPE PREAMPLIFIER OPERATING INSTRUCTIONS Beautiful As Music...
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Page 2: Phono Preamplifier
OPERATING INSTRUCTIONS UNPACKING IMPORTANT The Doshi Audio Tape preamplifier is made up of an audio unit, The umbilical cables carry high voltages. power supply and umbilical cords. Please unpack these from the Care must be taken to make sure they are carton and inspect to make sure that there is no damage from properly inserted. - Page 3 Rear of Power Supply Rear of Audio unit showing output and HV power connection Umbilical Cables Front of PSU...
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Page 4: Design Philosophy
DESIGN PHILOSOPHY All Doshi Audio Evolution Series products are designed with sound quality and reliability as primary goals. The use of passive components that are specified for ten times their actual dissipation which results in low thermal stress and heat modulation. -
Page 5: Alignment Procedure
LOW FREQUENCY EQUALIZATION: Very low inductance tape heads will need the low loading The Evolution series LF eq is a Baxandall type centered at position. To check that the loading is correct – calibrate the 50hz, this gives a moderate correction for low frequency unit with a test tape at 1Khz and 10Khz. - Page 6 This must be done with the help of an external Hum and Noise – At least 80db below 0dbv voltmeter. Doshi Audio LLC, 2020 IMPT: Meter adjustment pots are located to the left and right of the meter level switch. Adjust counter clockwise for increase in indication.
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Page 7: Limited Warranty
Pursuant to this Limited Warranty, CONDITION ON THIS PRODUCT. Doshi Audio Inc will, at its option, (i) repair the product using new or refurbished parts or (ii) replace the product with a DURATION OF IMPLIED WARRANTIES: EXCEPT TO THE new or refurbished product. - Page 8 EVOLUTION SERIES The V3 series was extremely well received by the press, dealers and customers. It has proven itself to be reliable, great sounding and distinctive in its “form follows function” looks. It was hard to improve upon in significant ways but we have achieved this goal in every area of performance and reliability.
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