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Page 8 IQ–AMB-5 / IQ–SMX-6
Reference Manual
AMB-5 / SMX-6 IQ Mixer/Multiplexer
1 Welcome
Thank you for purchasing a
Crown
®
IQ mixer/multi-
plexer. IQ mixer/multiplexers are intelligent mixers with
special signal routing capabilities. Their intelligence
stems from a powerful onboard microprocessor which
enables them to be controlled by a Crown
IQ System
®
.
Each input and output can be individually controlled
and, with their
distributed intelligence
™
capability, con-
tinue to operate even when an IQ System is not con-
nected.
In addition to two main outputs (one for each channel),
each model has a second set of “bus” outputs which
are switched on and off by a relay. This enables many
mixer/multiplexers to be connected to a common au-
dio bus without loading it down. They are designed to
work as stand-alone units in a small audio system, or
as modules in a large audio system.
Two models are available to serve different needs. The
IQ–SMX-6
™
model operates as a 6x2 mixer. The
IQ–
AMB-5
™
can operate as a 5x1 mixer. Multiple units can
be connected together to form larger mixers. For ex-
ample, two IQ–SMX-6 mixers can be connected to-
gether to form a single 12x2 mixer.
The IQ–SMX-6 provides basic mixing capabilities, as
well as automatic signal processing. A sensing circuit
is located at the beginning of each input to sense the
input signal level ahead of any signal processing. Simi-
lar sensors, along with its onboard intelligence, enable
the IQ–SMX-6 to perform many versatile functions like
automatic mixing, compression, and automatic level
control.
Figure 1.1 The IQ–AMB-5 and IQ–SMX-6
The IQ–AMB-5 has the same functions as an IQ–SMX-
6 plus it has the ability to sense ambient sound level
and automatically adjust its output level accordingly. In
this way it serves as the ultimate automatic level con-
troller. Input 6 is dedicated as the sensing input, leav-
ing 5 inputs to function normally as a 5x2 mixer. Unlike
the IQ–SMX-6, signal processing is only available for
Channel 1. Channel 2 functions as a manual mixer.
This manual will help you successfully install your unit.
Please read all the instructions, warnings and cautions
contained within it. Also, for your protection, please
send in the warranty registration card today. And save
the bill of sale—it is your official proof of purchase.
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1.1 Unpacking
Please inspect the unit for any damage that may have
occurred during transit. If damage is found, notify the
transportation company immediately. Only you, the
consignee, may initiate a claim with the carrier for
shipping damage. Crown will cooperate fully as
needed. Save the shipping carton as evidence of
damage for the shipper’s inspection.
Please save all packing materials. NEVER SHIP THE
UNIT WITHOUT THE FACTORY PACK.