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Graaf WFB TWO
SPECIAL $3,000.00
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GRAAFiti WFB TWO
Line and Phono Preamplifier |
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The
GRAAFiti WFB TWO is an extremely versatile preamplifier entirely
free of the use of feedback. Offering both phono and line-level
inputs, the WFB TWO accepts seven sources (five line level, one
phono and one tape), and three sets of outputs (one tape record
and two main outputs). |
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Digital
sources sound more musical and less artificial when heard through the
WFB TWO’s pair of 6922 double triodes in the voltage gain line section.
The phono
section uses solid-state devices, including BJTs and MOSFETs, able to
produce the high gain necessary for moving-coil cartridges with low
output. |
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To
ensure that all cartridges are able to feed the WFB TWO, the user can
select three different gain levels for moving-magnet or moving-coil
types, through impedances of 100, 500 and 47000 ohms. |
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The
WFB TWO’s power supply decouples the preamplifier from the AC line and
it allows the unit to work with line voltages varying by as much as
+/-10% with respect to the normal AC voltage. |
Mint Condition.
Easy to integrate into any system.
Top off and circuit board exposed.
The Classic Graaf WFB TWO
2 x 6922 Vacuum Tubes
Kendall Capacitors.
ALPS Blue Velvet Volume Control.
Made In Italy.
Specifications:
Voltage gain: line 16 dB
line + phono MM 40 dB
line + phono MM/MC 55 dB
line + phono MC 62 dB
Input impedance: line 100 Kohms
phono 100 - 500 - 47000 ohms
Output impedance: 220 ohms
Max voltage output: 60 V RMS
Total harmonic distorsion: 0,4% a 10 V
Signal/Noise ratio: line 103 dB at max output
phono MM 90 dB
phono MM/MC 78 dB
phono MC 74 dB
Frequency response: 4 Hz to 80 KHz (-3dB)
Power requirements: 105 ÷ 120 / 210 ÷ 240 V
(50 ÷ 60 Hz)30 W
Dimensions (W x H x D): 410 x 105 x 300 mm
Weight: Peso: 4,6 Kg
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