Tone Controls - Deep, Bass, Middle & Treble
The TONE CONTROLS are passive and interactive.
The BASS, MIDDLE and TREBLE controls adjust the response of their respective
frequency band as expected and are tailored to suit the frequencies developed by the
bass guitar.
A ‘12 o’clock’setting on all controls gives a good basic sound from which to start. This
gives a slight mid cut at about 1KHz and a slight high and low boost.
The DEEP push switch, located next to the BASS control, configures the tone control
circuit to produce a ‘deeper’ tone with an extended bass emphasis.
The MIDDLE control incorporates a PULL SHIFT function which shifts the centre
frequency at which it works upwards to around 2KHz. This helps to give the instrument
more presence to cut through the mix of a band.
Compressor - On/Off, Level
The COMPRESSOR circuit within the V8 is based on simple, vintage, studio valve
compressors. It’s valve gain stage is controlled by a silicon diode side chain that has been
designed to respond like a vacuum double-diode.
It has pre-set slow attack and release times (best for bass frequencies) and is intended
to be used to smooth out and fatten up the sound of a bass guitar (rather than as an
extreme limiter effect).
Pushing the ON/OFF push switch in switches the compressor into the signal path (after
the preamp and tone controls), however the corresponding blue LED will not be lit unless
gain reduction (compression) actually occurs, this gives the user a visual indication of
what the compressor circuit is doing to the sound. The brighter the LED is lit the more
compression is occurring.
The LEVEL control effectively sets the ‘threshold’ level, above which gain reduction
will take place. Turning up the control reduces the threshold level, thereby increasing the
likelihood of compression occurring.
Where this will need to be set will depend on several things; the signal level of the
instrument, how hard the bass player is playing, and the particular preamp settings.
Basically the softer the instrument is played and the lower the preamp settings are, the
higher the LEVEL control will need to be to get the compression circuit working.
Therefore it is recommended that the user experiment with all controls to experience the
way in which they interact with different signal levels.
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