
van den Hul
The Grail SX
The Grail SX is a phono preamplifier made by van den Hul, developed as the successor to the Grail SE. It uses a hybrid design and true transmission technology, with two MC inputs (MC-1 balanced or unbalanced and MC-2 unbalanced), one unbalanced MM input, automatic MC loading from approximately 10–400 ohms, and selectable gain from 32–46.5 dB for MM and 52–66.5 dB for MC. It provides 15 Vss maximum undistorted output for the MM path and 8.5 Vss for the MC path, with 330-ohm unbalanced and 600-ohm balanced output impedance; the unit measures 475 × 95 × 335 mm, weighs approximately 13.5 kg without the external power supply, and is available in matte silver aluminum.
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Specifications
- Input
- Two MC inputs MC-1 (balanced or unbalanced) MC-2 (unbalanced only)( One MM input (or high level output MC cartridge) MM-1 (unbalanced only)
- SNR
- Over 80dB(A) with the lowest amplification factor.
- Weight
- 13,5KG (appr.30lbs) without the ext. power supply
- Mains power
- Available with 115/120Volts or 230Volts, 50/60Hz.
- Input impedance
- Autom. matching in milliseconds from appr. 10 Ohms up to 400 Ohms
- Available colons
- Matte silver alui
- Output impedance
- 330 Ohms (real resistive), 600 Ohms at balanced out
- Input sensivity values
- (given for 250mV RMS resp. 0,707Vss output level on amplifier output)
- Size w x h x l incl feet
- 475 x 95 x 335mm
- Temperature operating range
- from 15deg. Celsius up to 35deg. Celsius room temperature. No condensing on item allowed. Use only in dry rooms
- MC input amplification factor
- 52dB 0,62mV 60dB 0,25mV 66,5dB 0,12mV Input impedance from 10 Ohm till 400 Ohm
- MM input amplification factor
- 32dB 6,2mV 40dB 2,5mV 46,5dB 1,2mV Input impedance 47kOhm / 50pF
- Max undistorted output voltage 1
- 15Vss for MM signal path, 8,5Vss for MC signal path
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