LYRA
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8
USER MANUAL
CONNECTIONS
1
PHONES:
For headphones with a resistance of 8 to 64 Ohm.
2
OUT:
A balanced mono output. Works as a typical TS jack output in unbalanced mode;
can also be connected via an XLR adaptor directly to a multicore. This eliminates the need
for DI boxes, which, if passive, can degrade the signal's bass and sub-bass.
3
EXT IN:
Input for an external audio source. The external signal mixes with Lyra's voices and
is processed by the delay and the distortion. It turns Lyra into a cool FX processor and also
makes it possible to play a synth or drum line together with Lyra's voices through the internal
FX units. When TOTAL FB or SELF in the delay section are turned on, the external signal will
influence resonance and warp the modulation loops, thereby affecting overall synth behaviour.
4
HOLD GATE:
A dynamic input for controlling the HOLD function. An input voltage of
+5 volt will fully open the VCA. The more the voltage is lowered, the more it will close the
VCA. With the control voltage at 0, the voice levels will decay according to their individual
envelopes. Use the HOLD knob to adjust the level for each of the two voice groups. When
set to FAST, the synth will react faster to a decrease in control voltage.
5
CV DELAY:
This input allows using control voltage to modulate the delay time. When a
cable is plugged in, the SELF and LFO modes are automatically disabled and delay modulation
comes from an external source, regardless of the delay switch positions. Set the modulation
amount with the individual MOD knobs for each delay line. The input signal must have a positive
value and a 3 to 12 volt amplitude. The relation of delay time to the control voltage is linear.
6
CV VOICES:
This input is for using control voltage to control the pitch of voices. The CV
input will control the voice pairs with LFO CV chosen as their modulation source. Plugging in
a CV source cable in the CV VOICES input will cause the control voltage to replace the LFO
and TOTAL FB signals (which are bypassed automatically). The amount of modulation is set
by the MOD knob in a given voice section. This CV input doesn't offer the standard 1V/oct
logarithmic function necessary for achieving a tuned musical scale. It's a modulating input,
not a tone-precise VCO control that covers the entire frequency range. Nevertheless, a step
sequencer can be used to build melodic lines by ear. Combined with the internal modulation,
this will yield interesting results. You can also try connecting an audio source to this input,
e.g. a drum machine or another synth.
7
DC 12V:
The plus is in the centre (centre positive). A 100-240V switching power supply
with EU plug is included. In case of replacement, use a stabilised 12-volt power supply with
a minimum of 200 mA (0,2A). It's recommended to use a recent switched-mode power
supply with a wide input voltage range and excellent stability.
8
POWER SWITCH
7
8
6
3
4
5
2
1
Summary of Contents for LYRA 4
Page 1: ...USER MANUAL ...
