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IQ P.I.P.–SMT
3 Features
With an
IQ–P.I.P.–SMT
module a
Crown amplifier can be monitored
and controlled by an
IQ System
. And
the module has
SmartAmp
™
features
which enable the amplifier to function
automatically. For example, an
IQ–
P.I.P.–SMT
can automatically turn off
the high voltage supplies of the am-
plifier when no input signal is present.
This can lower electrical usage and
provide long-term cost savings. And
it can automatically limit the audio
signal and detect and report various
problems.
Most of the features can be either
controlled or configured by a host
computer attached to the
IQ System
via an IQ interface. The host com-
puter is usually a PC and must be
running some kind of IQ software.
Please contact your Crown represen-
tative or Crown’s Technical Support
Group if you are unfamiliar with IQ
software.
3.1 Amplifier Information
(
PIP2
amplifiers only.) Several items
of information about an amplifier can
be displayed by the IQ software.
These include the manufacturer,
model, date code, serial number and
revision level. Which items are avail-
able depends on both the amplifier
and the IQ software used.
3.2 Amp Mode
The stereo/mono mode of the ampli-
fier can be stored into the unit’s
memory so the
IQ System
is aware of
the amplifier’s stereo/mono switch
setting. Storing this setting serves as
an “electronic reminder” to the sys-
tem—however, the stereo/mono
mode cannot be controlled with this
setting. The modes are Stereo (Dual),
Bridge-Mono and Parallel-Mono. This
software amp mode setting is con-
trolled by the
IQ System
.
3.3 Power Control
Each channel’s high-voltage supply
can be independently turned on and
off with the Power control. The
IQ Sys-
tem
is used to set this control.
3.4 Input Signal Level Monitor
The input signal level of each chan-
nel can be monitored by IQ software.
This monitor feature has a range from
+16 dBu to –40 dBu in ½ dB steps.
3.5 Signal Mute
The output signal of each channel
can be independently muted by the
IQ System
. The function typically pro-
vides 80 dB or more of attenuation.
3.6 Polarity Inverter
The polarity of the input signal of
each channel can be independently
inverted by the
IQ System
.
3.7 Input Signal Attenuator
An attenuator is available at the input
of each channel to control the input
signal level. These attenuators are
controlled and monitored by the
IQ
System
. They may appear to move
like “flying faders” on some IQ soft-
ware screens because they reflect all
reductions in gain that are dynami-
cally applied by the input compres-
sor/limiter, smooth/output signal
limiter and
ODEP
conservation func-
tions. Each input attenuator has a
range from 0 dB to –80 dB in ½ dB
steps. (Zero equals no attenuation.)
