Product Information

11
Elettromedia
62018 Potenza Picena (MC) Italy
T [phone] - F [phone]
elettromedia.com
audison.com
All specications subject to change without notice_19.A
In professional audio parametric equalizers have long since replaced the graphic ones for their greater precision of intervention as well
as a considerable decrease in phase alterations. In fact, in graphic equalizers, to flatten a response curve, one is almost always forced
to use almost all of the 31 intervention points offered, but each band introduces a phase shift that is added to the adjacent one, with the
result of creating rotations on the whole spectrum. With a parametric equalizer, in most cases two or three points of intervention with a
precision of a single hertz are sufcient, which thanks to the adjustment of the Q factor width allow you to model the curve to your liking.
Thanks to the processing power the bit One HD Virtuoso provides
the user with three parametric equalizers that intervene in
different points of the sound processing path. It is important to
note that all three equalizers can be disabled or enabled at will.
1. CHANNEL EQ: it is the block used to flatten the emission
of all the speakers of each front that should be adjusted with
the most linear source possible (optical digital AUX input).
Highlighting the corresponding curve, the Channel EQ allows
you to hear the sound of the corresponding speaker. For each
emission front or single channel the EQ provides 11 parametric
poles and 2 FIR shelving type lters. To flatten the emission at the
crossing points you can use all-pass lters and notch type lters
to suppress any resonances in the passenger compartment. In
the FIR conguration, 8 parameter lters are available, a Hi-Shelf
(FIR), a Lo-Shelf (IIR) and two parametric points (IIR, full band)
that can also be used as notch.
2. INPUT EQ: it is the equalizer that is used to manually flatten
the selected input that can be strongly altered as in the case of an
OEM Head-Unit with an equalization preset by the manufacturer.
This equalizer block is useful for levelling out the sound
differences between the sources as in the transition from a Hi-
Res (already linear) player and an OEM Head-Unit connected to
the master input. In this case the user avails of 8 + 1 parametric
intervention points (FIR) + 1 Hi-Shelf (FIR) and many additional
features such as:
i. Free selection of input fronts (FRONT L, FRONT R, REAR R,
REAR R, CENTER, SUB) in order to unlink the input EQ. User can
decide to keep the “All Fronts” default setting to apply the same
input EQ, or by de-flagging this option, to work on each input
independently.
ii. All-pass lters (2nd order) for each input front (FRONT L,
FRONT R, REAR R, REAR R, CENTER, SUB) that can be free tuned
(Fc, phase) by the user to linearize OEM phase algorithm.
iii. Quick sensitivity level adjustments 3 stages (ref, +3dB, +6dB),
to boost input sensitivity and gain headroom when musical tracks
are recorded quite below 0 dBFS (low). This function will be also
available on DRC MP.
PARAMETRIC EQ
3 EQUALIZATION STAGES