3
INTRODUCTION
Thank you for purchasing Sound Scourge equipment. The equipment you now own is a result of
many hours of research and development as well as multiple recording and playback tests.
The Nv73d preamplifier is a transistor device with a signal path based solely on discrete elements.
The preamplifier has a transformer balanced microphone input with a high impedance instrumental
input. The preamplifier’s signal output is transformer balanced as well. All the preamp blocks
work in class A.
We have taken a rigorous approach to both components and sound of the preamplifier. The device
is manually assembled from selected parts characterized by a narrow parameter tolerance.
The signal path has been reduced to its minimal length and the signal is guided through top class
rotary switches. Switching impedance, signal phase, etc. is accomplished by hermetically sealed
signal relays.
The screened off power supply has an ample power reserve, which results in stable operation of
the device. Nv73d casing is made of anodized aluminum and all elements are machined with
high accuracy.
Summary of Contents for Nv73d
Page 1: ...User manual ...
Page 6: ...6 1 3 2 AC power on switch 2 BACK PANNEL DESCRIPTION 1 AC power socket 3 Serial number ...
Page 9: ...9 BLOCK DIAGRAM ...
Page 11: ......