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Headphone and Portable Audio Specialists

van den Hul The Grail Phonostage

VDHTHEGRAIL

£4,270.00  

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The GRAIL
With this product you will be the owner of one of the most innovative and advanced phonograph
preamplifier’s available at the moment.
“The Grail” is a really dulcet phonograph preamplifier, specifically designed bearing ultimate
performance and reliability in mind.


Featurelist:

  • a specific designed Phonograph preamplifier section, unique in the world
  • Phonograph RIAA - equalization with coils only, no sound impairing capacitors in filters
  • special printed circuit board material with gold conducting paths
  • the printed circuit board has a special seating to evade microphonics
  • special equipment foot made of selected wood avoids mechanical energy storage
  • low noise moving coil input stage, no annoying noise even with low-output cartridges
  • automatic adapting input stage for moving coil cartridges, no matching resistors needed
  • possibility to compensate phonograph cartridge sensivity (level adjustment)
  • cut out of coupling capacitors in the signal path as far as possible
  • strictly separated amplifier sections and circuit layout deliver a very natural soundstage
  • inputs: two phonograph inputs, one for MC cartridges, one for MM or MC high-output
  • a shielded transformer is placed in an external housing to avoid hum and EMI noise
  • power supply with Gyrators for each amplifier stage deliver very high noise cancellation
  • the external transformer is available for different mains voltages

Designed to provide high-end audio, “The Grail” will deliver you outstanding sound quality
with nearly every available modern phonograph cartridge.
Also available with a battery powersupply!:


TECHNICAL SPECIFICATIONS
Mains Power 115 or 230Volt, 50/60Hz
Power consumption: 7 Watts
Temperature operating range: from 15 up to 30deg. Celsius Use only in dry rooms

Max. undistorted output voltage:
25Vss (Accumulator driven version:19Vss)
Output impedance: 330 Ohms (real resistive)
Input sensivity values:
for 250mV resp. 0,707Vss output level on amplifier output

MM input:
Amplification factor 33dB: 5,6 mV
Amplification factor 41dB: 2,2 mV
Amplification factor 50dB: 0,8 mV
Input impedance: 47KOhm / 50pF

MC input:
Amplification factor 56dB: 0,4 mV
Amplification factor 64dB: 0,15 mV
Amplification factor 73dB: 0,05 mV

Input impedance: autom. matching from appr. 40 up to 400Ohms
Channel Deviation R&L
Distortion 0dBm
Distortion 0dBv
Noise Distrotion test at 600mV rms - broadband noise upto 2KHz:

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Van Den Hul