van den hul – Grail SB – Store Demo

$13,250.00

Demo Grail SB used for demonstration purposes.

In Stock

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Description

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 SB” is a really dulcet phonograph preamplifier, specifically designed bearing ultimate performance and reliability in mind.

Feature list:

  • 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:

three phonograph inputs, two 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

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
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. 20 up to 1,500 Ohms

Designed to provide high-end audio, “The Grail SB” will deliver you outstanding sound quality with nearly every available modern phonograph cartridge.

Chassis available in White or Black.