van den Hul
The Grail MK III.1
The Grail MK III.1 is a phonograph preamplifier made by Van den Hul, with a hybrid design and support for two moving-coil cartridge inputs. Its circuitry uses coil-only RIAA equalization, an automatically adapting moving-coil input stage with approximately 10–400 ohm matching, separately regulated amplifier sections with gyrators, an external shielded transformer, and a gold-trace printed circuit board mounted to reduce microphonics. Specifications include 56/64/73 dB gain settings, 330-ohm RCA output impedance, 15 Vss maximum undistorted output, ≥77 dB(A) signal-to-noise ratio, and a solid milled-aluminium cabinet.
MSRP
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Specifications
- SNR
- > = 77dB dB(A)
- Mains power
- 110-120Volts, 50/60 Hz and 240Volts, 50/60Hz (toggleable)
- Amplifier class
- 0,05 mV
- Input impedance
- autom. matching from appr. 10 Ohms up to 400 Ohms
- Output impedance
- 330 Ohms at RCA Cinch output
- Power consumption
- appr. 10 Watts
- Input sensivity values
- given for 250mV RMS resp. 0,707Vss output level on amplifier output
- Temperature operation range
- from 15deg. Celsius up to 35deg. Celsius room temperature. No condensing on item allowed Use the amplifier only in dry environments
- Max undistorted output voltage
- 15Vss for MM signal path
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