Vsl VCF-74 User Manual

VCF-74 QUICKSTART GUIDE

VSL

CONTROLS

VintageSynthLab.com

HIGH PASS

Cutoff Frequency for High-Pass Filter

Variable adjustment for high-pass
frequency cutoff.

LOW PASS

Cutoff Frequency for Low-Pass Filter

Variable adjustment for low-pass
frequency cutoff.

HP RES

Resonance for High-Pass Filter

The HP Res control sets the amount of
resonance applied to the High-Pass filter.

Note: When a CV is used to control resonance,
the resonance control sets the maximum
amount of resonance. Think of this as an
attenuation for incoming CVs on resonance.

LP RES

Resonance for Low-Pass Filter

The LP Res control sets the amount of
resonance applied to the Low-Pass filter.

Note: When a CV is used to control resonance,
the resonance control sets the maximum
amount of resonance. Think of this as an
attenuation for incoming CVs on resonance.

JACKS

BOOST

This switch will apply a moderate amount
of boost between the High-Pass and Low­Pass filters. (eg. HP > BOOST > LP)

INPUT LEVEL

This control provides variable gain or
attenuation for the incoming audio signal
for a wide range of signals levels.

HP CUT CV ATTENUATION

High-Pass Filter Cutoff CV Attenuation

This control provides variable gain

or attenuation for the High-Pass
filter cutoff control voltage.

LP CUT CV ATTENUATION

Low-Pass Filter Cutoff CV Attenuation

This control provides variable gain or
attenuation for the Low-Pass filter cutoff.

OUTPUT LEVEL

This control provides variable gain or
attenuation for the outgoing audio signal.

IN

Audio Input [47k ohms]

The optimal incoming signal levels are
from 1Vpp to 22Vpp (-7dBu to +20dBu).

HP CUT

High-Pass Filter Cutoff Input CV [100k ohms]

This input accepts a wide range of control
voltage levels (also affected by: HP CUT CV
attenuation) that result in the adjustment
or modulation of the HP Cuttoff frequency.

HP RES

High-Pass Filter Resonance CV [100k ohms]

This input accepts a range of -5V (minimum
resonance) to +5V (maximum resonance)
to affect the resonance amount.

LP RES

Low-Pass Filter Resonance CV [100k ohms]

This input accepts a range of -5V (minimum
resonance) to +5V (maximum resonance)
to affect the resonance amount.

LP CUT

Low-Pass Filter Cutoff Input CV [100k ohms]

This input accepts a wide range of control
voltage levels (also affected by: LP CUT
CV Atten.) that result in the adjustment or
modulation of the LP Cuttoff frequency.

OUT

Audio Output

The best performance will be obtained
when driving inputs (total combined
resultant impedance) is of 10k
ohms minimum. The signal level is
dependent on output level settings.

Made in U.S.A.VintageSynthLab.com