Apollo Thunderbolt Software Manual Unison 178
Unison Operation Notes
The operating notes in this section only apply to Unison functionality (when a Unison
plug-in is loaded in Console’s dedicated Unison insert).
The notes do NOT apply to Unison plug-ins that are used in Console’s standard inserts,
nor via VST/AU/RTAS/AAX64 within a DAW, even when a Unison plug-in title is used. In
this scenario, Unison plug-ins function the same as all standard (non-Unison) UAD plug-
in titles and there is no physical or electrical hardware interaction.
Important: Unison functionality is available only when Unison-enabled UAD plug-
ins are loaded within Console in the unique Unison inserts.
• Unison insert processing is always recorded in the DAW (regardless of the current
Insert Effects setting) because Unison plug-ins process the physical inputs.
• A microphone, line input, or Hi-Z instrument source must be attached to the
Apollo input channel for Unison plug-in processing in the Unison insert to be
audible.
• Apollo’s hardware preamp controls remain active even if the Unison plug-in is
disabled.
• Because Apollo’s front panel preamp controls are always current and inherited
by the Unison plug-in, changes made to a Unison plug-in when the plug-in is
bypassed are not retained when the plug-in is reactivated.
• A Unison plug-in’s modeled behaviors and parameter ranges are used by the
hardware controls whenever possible, even if the attribute is different than
Apollo’s stock preamps. For example, if the Unison plug-in has a 15 dB pad, then
Apollo’s front panel PAD button value will use the Unison plug-in’s 15 dB value
instead of Apollo’s stock 20 dB value.
• Default gain levels when a Unison plug-in is inserted can vary from Apollo’s
default (non-Unison) preamp levels, and also between various Unison plug-in
titles. This is a by-product of accurate preamp modeling. Because hardware
preamp designs from each manufacturer vary, they all have different total gain
amounts, control ranges, and control response curves, whether Mic, Line, or Hi-Z.
• If a Unison plug-in does not contain settings that are available on Apollo (pad,
low cut filter, etc), the Apollo settings are not changed when the Unison plug-
in settings are loaded, and the Apollo settings are still available for control via
Apollo’s front panel and/or Console channel.
• When a Unison plug-in is removed from the Unison insert, Apollo’s mic input
impedance reverts to its default value of 5.4K Ohms.
• When the original hardware preamp being emulated by the Unison plug-in
has a Hi-Z (instrument) input and associated Hi-Z input switch, this switch is
unavailable in the Unison plug-in interface. Instead, the Unison plug-in’s Hi-Z
input is automatically selected when a mono (tip-sleeve) plug is inserted into the
Unison channel’s front panel Hi-Z input jack.
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