2 Channel Professional Audio
Amplifier: CNAMPX-2X60
Description
Functional Description
The CNAMPX-2X60 is a 2-channel, 60-Watts per channel audio amplifier. As part
of a Cresnet system, the unit can accept remote power on/off commands and report
ambient temperature within the enclosure. Temperature is available as Fahrenheit or
Celsius and the signal can be used under program control to reduce the audio
volume, activate an external cooling fan, or turn the unit off.
Functional Summary
• 2 Channels of Amplification
− 60 Watts/Channel Stereo into 8 Ohm Load (90
Watts into 4 Ohms)
− 200 Watts Bridged into 8 Ohms
− Flat within +0, -0.1 dB from 20 Hz to 20 KHz
• 3-Position Mode Selection Switch: Stereo, Mono
(Sum L+R), and Bridged
• Can Be Used In Many Applications, Including:
− Local Stereo Amp For Remote Room
− Sub-Amp For Home Theater’s Passive Subwoofer
All audio connectors are gold plated to minimize oxidation, and three types of wire
terminations can connect to the audio outputs. A highly efficient toroid transformer
provides ample power to the two-channel amplifier module. No fans are required but
if the unit is placed in a rack configuration, it must have a minimum of one rack
space above and below for adequate ventilation.
The CNAMPX-2X60 is also available as an international version. All of the features
are identical with the exceptions of the international AC power requirements and
power cord and the unit nomenclature of CNAMPXI-2X60. Throughout this
operations guide, all references to CNAMPX-2X60 apply to both versions except
where noted.
Physical Description
The CNAMPX-2X60, shown below, is housed in a black enclosure with labeling on
the front and rear panels. The enclosure consists of 13-gauge powder-coated steel
with stainless steel screws. The front panel contains the main power switch with
built-in light-emitting diode (LED). All audio input and output, Cresnet system, and
power connections are made on the rear panel. Four rubber feet on the base of the
unit provide stability and prevent slippage.
CNAMPX-2X60 Physical Views
BRIDGED
RIGHT
ATTENTION:
POUR LA PROTECTION CONTRE LES RISQUES
D'INCENDIES N'UTILIS EZ SEULEMENT LE MÊMES TYPE DE
FUSIBLE. DÉBRANCHEZ LE CÂBLE D'ALIMENTATION
AVANT DE CHANGER LE FUSIBLE.
RIGHT
CRESTRON
CRESTRON
INPUTS
SUMMING
ST
ST
BRIDGED
BRIDGED
+
4 - 8 OHM
OUTPUTS
–
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE NEPAS OUVRIR
AVIS:
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD USE ONLY SAME TYPE AND RATING FUSE.
DISCONNECT SUPP LY CORD BEFORE CHANGING FUSE.
MADE IN THE USA
DATE:
8A 125V
F
120V~60Hz
960 WATTS MAX
PWR
OVERRIDE/
SETUP
NET
24
Y
Z
G
3.47 in
(8.81 cm)
CNAMPX-2X60
POWER
CRESTRON
8.48 in
(21.54 cm)
P R O F E S S I O N A L A U D I O A M P L I F I E R
Read all information and instructions provided in this operations guide.
Retain this operations guide.
Heed all warnings and cautions printed in this operations guide.
Follow all instructions in the order that they are provided.
Do not use this unit near water.
Clean only with a damp cloth.
Do not block any of the ventilation openings. Install in accordance with the
Do not install near any heat sources such as radiators, heat registers, stoves, or
Do not defeat the safety purpose of the polarized or ground-type plug. A
2 Channel Professional Audio Amplifier
instructions in this operations guide.
other apparatus that produce heat.
polarized plug has two blades with one wider that the other. A grounding type
plug has two blades and a third grounding prong. The wide blade or the third
prong is provided for your safety. When the provided plug does not fit into an
outlet, consult an electrician for replacement of the obsolete outlet.
Protect the power cord from being walked on or pinched particularly at plugs,
convenience receptacles (if provided), and the point where they exit the unit.
Use only attachments/accessories specified in this operations guide.
When an equipment rack is used, use caution when moving the rack/unit
combination to avoid injury or tip-over.
Unplug this unit during lighting storms or when unused for long periods of time.
Refer all service to certified Crestron service personnel. Servicing is required
when the unit has been damaged in a way, such as power cord or plug is
damaged, liquid has been spilled or objects have fallen into the unit, the unit has
been exposed to rain or moisture, does not operate normally, or has been
dropped.
CNAMPX-2X60 Rear Ports and Indicators
A number of ports and indicators are provided on the rear of the CNAMPX-2X60.
Refer to the illustration below and the descriptions on the next page.
CNAMPX-2X60 Rear Panel
INPUTS
SUMMING
BRIDGED
ATTENTION:
POUR LA PROTECTION CONTRE LES RISQUES
D'INCENDIES N'UTILISEZ SEULEMENT LE MÊMES TYPE DE
FUSIBLE. DÉBRANCHEZ LE CÂBLE D'ALIMENTATION
AVANT DE CHANGER LE FUSIBLE.
RIGHT
RIGHT
ST
BRIDGED
BRIDGED
+
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD USE ONLY SAME TYPE AND RATING FUSE.
DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE.
This LED (green) is illuminated when 24VDC via the Cresnet connector is supplied
to the CNAMPX-2X60.
NET Indicator
This LED (yellow) indicates that the SIMPL program currently loaded in the control
system has a network device defined at the same NET ID code as the CNAMPX2X60. The LED flashes when communication with the Cresnet system and the
CNAMPX-2X60 is occurring.
(Chassis Ground)
Use this chassis screw to connect the audio device(s) common ground(s) to the
CNAMPX-2X60.
NET
The 4-pin network connector is used to connect the CNAMPX-2X60 to the Cresnet
system. Refer to “Network Wiring” on Page 6 when making connections to the ports
labeled NET.
OVERRIDE/SETUP Button and Indicator
The OVERRIDE/SETUP button is used to activate AC power to the CNAMPX2X60 and activate the room outputs. This button functions only when 24VDC is
applied to the NET connector. The LED (red) illuminates when the OVERRIDE is
activated.
CNAMPX-2X60
Power Connector and Fuse Compartment
The power connector provides AC operating power to the CNAMPX-2X60 via the
supplied power cord. The fuse electrically protects the internal circuitry from power
overloads and is located (a spare fuse is included) within the compartment above the
power connector.
INPUTS
The two RCA connectors are typically used to connect unbalanced pre-amplified
audio to the CNAMPX-2X60. The left channel audio is input to the LEFT connector
(with the white center insulator); the right channel audio to the RIGHT connector
(with the red center insulator).
4 – 8 OHM OUTPUTS
These two pairs of speaker dual-binding posts output the left and right amplified
audio to the corresponding speakers. The audio positive posts have red screw-on
caps and the audio negative posts have black screw-on caps. Each post is gold-plated
and accepts bare wire, or spade lugs.