Page 1
VHD+ Pre Amplifier Module for 500 Series Racks User Guide...
Page 2
Safety and Installation Considerations This page contains definitions, warnings, and practical information to ensure a safe working environment. Please take time to read this page before installing or using this apparatus. General Safety • Read these instructions. • Keep these instructions. •...
Page 3
Limited Warranty Please refer any warranty claim to the supplier of this equipment in the first instance. Full warranty information for equipment supplied directly by Solid State Logic can be found on our website: www.solidstatelogic.com...
Page 4
Introduction Congratulations on your purchase of this API 500 format compatible SSL VHD+™ Pre Module. This module has been specifically designed to operate in a 500 for- mat rack such as the API lunchbox® or equivalent. In common with many such modules, the nominal input/output level is +4 dBu. The VHD+ Pre is an immensely versatile recording and processing device.
Page 5
Gain Controls The red pot provides up to +75 dB of gain, whilst the black pot provides a variable mix of 2nd to 3rd order harmonics (once the VHD-IN switch is engaged). The grey pot provides +/- 20dB of trim. Use this to control the output when driving the VHD preamplifier circuit.
Page 7
Switch Functions Applies phantom power to the rear XLR input, a tell tale red LED indicates phantom power is active. Applies 20 dB of attenuation before the signal enters the preamplifier. HI-Z Switches the XLR Mic preamplifier impedance from 1.2 KΩ to 10KΩ...
Page 8
As research and development is a continual process, Solid State Logic reserves the right to change the features and specifications described herein without notice or obligation. Solid State Logic cannot be held responsible for any loss or damage arising directly or indirectly from any error or omission in this manual.
Need help?
Do you have a question about the VHD+ and is the answer not in the manual?
Questions and answers