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
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| MM input: |
Amplification factor 33dB: 5,6 mV
Amplification factor 41dB: 2,2 mV
Amplification factor 50dB: 0,8 mV
Input impedance: 47KOhm / 50pF
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| 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 400 Ohms
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Channel Deviation R&L:
Distortion 0dBm:
Distortion 0dBv:
Noise Distrotion test at 600mV rms - broadband noise upto 2KHz:
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