AMPLIFIERS
INSTALLATION GUIDE
SI
-
CONGRATULATIONS!
Thank you for purchasing the Niles SI-1650, one of the most versatile and
powerful multi-channel ampliers ever offered. Like all Niles products, the
SI-1650 is built to the highest standards of quality and reliability. With proper
installation and operation, you’ll enjoy years of trouble-free use.
TABLE OF CONTENTS
INTRODUCTION 4
FEATURES AND BENEFITS 5
SYSTEM DESIGN BASICS 7
SYSTEM DESIGN CONSIDERATIONS 9
APPLICATIONS 12
CONFIGURING YOUR SYSTEM 16
CONFIGURATION AND SETUP TOOL 19
INSTALLATION CONSIDERATIONS 28
INSTALLATION 31-35
FRONT AND REAR PANEL DETAILS 32-33
OPERATION 36
TROUBLESHOOTING GUIDE 38
SPECIFICATIONS 40
CONFIGURATION WORKSHEET 41
WARRANTY 42
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions .
5. Do not use this apparatus near water.
6. Clean o nly with a dry cloth.
7. Do not block any ventilation openings. Ins tall in
accordance with the manufacturer’s instructions.
8. Do not install ne ar any heat sources such as
radiato rs, hea t registers, stoves or other apparatus
(including ampliers) that produce heat.
9. Do not defeat the safety purpose of the polar ized
or groun ding-t ype plug. A polar ized plug has two
blades with one wider than the other. A groundingtype pl ug has two blades a nd a third g rounding
prong. T he wide bl ade or the third prong is provi ded
for your safety. If the provided p lug does not t into
your outl et, consult an electrician for replace ment of
the obsolete outlet.
10. Protect the power cord from be ing walked on
or pinch ed, par ticularly at plugs, convenience
receptacles a nd the point where they exit fr om the
apparatus.
11. Only us e attachments/accessories specied by
the manufacturer.
12. Use only with the car t, stan d,
tripod, bracket or table specied
by the manu factur er or sold with
the appa ratus. W hen a car t is
used, use caution when moving
the cart/apparatus combination to
avoid inju ry from tip-over.
13. Unplug this appar atus dur ing lightning storms or
when unu sed for long periods of tim e.
14. Refer all se rvicing to qualied service perso nnel.
Servicing is require d when the appara tus has been
damaged in any way, such a s power supply cord or
plug is da maged, liquid ha s been spilled or object s
have falle n into the apparatus, the apparatus has
been exposed to rain or moisture, does not operate
normally, or has been dropped.
15. Do not expose this apparatus to drippi ng or
splashing and ensure that no objects lle d with
liquids, such as vases, are place d on the apparatus.
16. To completely disconnect this apparatus from
the AC Mains, disco nnect the power supply cord
plug fro m the AC receptacle.
17. The power supply co rd (sometimes referred
to as the “Mains Plug”) is used as the disconnect
device and shall remain ac cessible and operable at
all times.
18. Do not expose batte ries to excessive heat such
as sunshine, re or the like.
19. Open ame source s, such as lighted candle s,
should N OT be placed on the ap paratus.
WARNIN G: To redu ce the risk of fi re or elect ric
shock, do not expos e this apparatu s to rai n or
moisture.
The lightning ash with arrowhead
symbol, w ithin an e quilate ral triangle, is
intende d to aler t the user to the
presence of uninsulated “dangerous
that may be of sufcient magnitude to consti tute a
risk of electric shock to person s.
instructions in the literature accompanying the
product.
FCC Required Text:
NOTE: This equipment has been tested and found
to comply with the limits for a Class B digital
device, p ursua nt to par t 15 of the FCC Rule s.
These limits are designed to provide reasonable
protection against harmful interference in a
residential installation. This equipment generates,
uses, and can radiate, radio frequency energy
and, if not installed and used in accordan ce with
the instructions, may cause harmful interference
to radio communications. However, there is no
guarantee that interference will not occur in a
particular install ation. If this equipment do es caus e
harmful inter ference to radio o r televis ion reception,
which ca n be determined by turning the equipment
off and o n, the use r is encouraged to try to co rrect
the inter ference by one or more of the following
measures:
—Reorient or relocate the receiving antenna.
—Increa se the separation betwe en the equipment
and receiver.
—Connect the equipment into an outlet on a
circuit different fro m that to which the rec eiver is
connected.
—Consult the dealer or an experie nced ra dio/TV
technician for help.
Changes or modications not expressly approved
by the par ty res ponsible for compliance could void
the user’s authori ty to operate the equipment.
voltage” within the produc t’s enclosure
The exclamation point within an
equilateral triangle is intended to aler t
the user to the presence of im port ant
operating and maintenance (servicing)
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INTRODUCTION
We call the SI-1650 a Systems Integration Amplier because it is a power
amplier specically designed to solve the problems of interfacing with
different brands and models of equipment, different acoustic environments in
different rooms, and different kinds of applications: home theater, stereo, and
background music. The Niles SI-1650 Systems Integration Amplier brings
extremely high current power to a custom installed A/V System in a remarkably
convenient way.
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SI
-
1650
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
FEATURES AND BENEFITS
REAL WORLD POWER
The SI-1650 is 16-channel amplier congurable to deliver a solid 50 watts per
channel RMS into 8 ohms or 100 watts per channel RMS into 8 ohms using a
special high power mode. A new digital power transformer design provides the
energy necessary to efciently deliver solid, deep, controlled bass response to a
house full of speakers.
SIXTEEN TO EIGHT CHANNEL IP CONFIGURABLE POWER
Each of the SI-1650’s eight adjacent speaker output pairs are congurable into
a single high power output. You can create up to eight 100 watt channels using
the embedded webserver. This enables you to allocate more power to specic
locations, such as large rooms, outdoor applications or subwoofers.
FREEDOM FROM NOISE AND CROSS-TALK
The SI-1650’s BusMatrix™ incorporates advanced PCB construction ensuring
extremely high channel to channel isolation. Signal to noise ratios and cross-talk
are equivalent to a professional mixing board found in a recording studio. With
the SI-1650, the music playing in the living room cannot interfere with the music
in the den.
TRANSPARENT SOUND
The audio circuitry of the SI-1650 is constructed with the nest parts available,
including metal lm resistors, high quality capacitors and oversized heat sinks.
All this attention to technical detail results in a sound that is clear and uncolored.
IP CONFIGURABLE BUSMATRIX™ SELECTOR
A web based IP Conguration utility provides control of the BusMatrix™ selector
giving you the exibility to assign each speaker channel to any of the sixteen
signal inputs. Adjacent signal input pairs can also be combined and assigned
to a speaker channel for mono sound applications. With BusMatrix™, routing
surround sound to the master bedroom, stereo to the den, mono to the powder
room or high power to a subwoofer has never been easier. BusMatrix™ makes
the SI-1650 an ideal multi-room or multi-zone amplier and offers exciting new
features and system design possibilities to the professional installer.
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FEATURES AND BENEFITS CONTINUED...
IP CONFIGURABLE EQ ADJUSTMENT, VOLUME LEVEL
AND HIGH/LOW PASS SELECTION
A web based IP Conguration utility provides independent EQ adjustment and
volume level for each amplier channel enabling you to EQ and set volume
levels for 16 different speakers individually. A High/Low Pass Filter setting for
each channel accommodates passive subwoofers and small full range speakers.
Installers can now acoustically optimize each speaker for both its type and
individual location using a web browser.
TURN-ON MODES
The SI-1650 features three turn-on modes: 1. Manual turn-on via the front
panel switch, 2. Audio Sense and 3. External Voltage trigger. Audio Sense and
External Voltage trigger modes enable you to congure the SI-1650 to interface
with any kind of system and turn on automatically.
AUTOMATIC PROTECTION
Each channel has independent thermal and short circuit protection. In the
unlikely event that a problem occurs on one channel, the other channels will
continue to play. When conditions return to normal, regular operation resumes.
STATUS DISPLAY FOR TROUBLESHOOTING
LED’s on the front panel indicate Power, Active and Protection Status. With
a glance at the front panel a troubleshooter is quickly provided with key
information.
DESIGNED AND ENGINEERED IN THE USA
Limited two-year parts and labor warranty. (See page 42)
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
SYSTEM DESIGN BASICS
As shown in Figure 1, a distributed audio/video system is dened by the number
of listening zones it has. Within a listening zone you can listen to only one
source (e.g. CD, Radio, iPod, etc.) at any one time. A listening zone can consist
of a single room or a group of rooms. To achieve different volumes and greater
convenience in different rooms within a zone, individual volume controls can be
used. Niles makes volume controls in various styles and colors. When designing
your system, take into account who will use the system and when they will use
it. Consult your local Niles dealer for more information.
Figure 1
Plasma/
Blu-ray
Player
CD
Player
Cable
Box
LCD
RECEIVER
Family Room Living Room
Listening Zone 1
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SYSTEM DESIGN BASICS CONTINUED...
A MultiZone system as shown in Figure 2, offers the household more exibility.
For instance, a family might have their family room wired for surround sound
and their living room wired for background music. In a two zone system, the
children can watch TV in surround sound while Mom and Dad are reading the
paper and enjoying background music in the living room.
Figure 2
Plasma/
Blu-ray
Player
CD
Player
RECEIVER RECEIVER
Cable
Box
LCD
8
Family Room
Listening Zone 1 Listening Zone 2
Living Room
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
SYSTEM DESIGN CONSIDERATIONS
CABLE AND WIRE
Because the SI-1650 has many connections on the rear panel (see page 32 &
33), it is important that you correctly label all of the input cables and speaker
wires. Label the cables and wires with their destination or source, rather than
the SI-1650 terminal to which they are connected. This will make it easier to
recongure your system in the future.
The SI-1650 connects to your sources via shielded line level audio cables with
RCA connectors. Use high quality cables with your Niles amplier for the lowest
possible noise and best overall performance. Your Niles dealer can recommend
the proper cable.
The SI-1650 connects to your speakers using two conductor speaker wire. For
most applications, we recommend you use 16 or 18 gauge wire. For wiring
runs longer than 80 feet, we recommend 14 gauge wire. The SI-1650’s highquality, gold-plated 5-way binding posts will accommodate up to 12-gauge
wire. Attaching banana plugs to the wire will enable the connection of larger wire
sizes.
USING MONO FOR SMOOTHER COVERAGE
In large or irregularly shaped rooms, you may nd that the main listening area
may be closer to one of the speakers. If the speakers in the room are connected
to a stereo amplier you will only hear half the music. The SI-1650’s BusMatrix™
enables you to create mono sound from one speaker without impacting the
stereo quality in the rest of the system. You can congure each amplier channel
individually to Left, Right or mono as needed with no ill effects. Some of the
most popular areas where mono will greatly enhance the sound quality would
be:
• Large rooms with many seating areas and/or many pairs of speakers.
• Irregularly shaped rooms.
• Bathrooms with one speaker over the tub and one speaker over the sink(s).
• Hallways or passageways (including those with multiple speakers).
• Small rooms, such as walk-in closets where more than a single speaker is
not required.
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SYSTEM DESIGN CONSIDERATIONS CONTINUED...
CREATING HIGH POWER AMPLIFIER CHANNELS FOR
AREAS THAT REQUIRE MORE VOLUME AND POWER
All of the odd numbered amplier channels of the SI-1650 (channels 1, 3, 5, 7, 9,
11, 13, and 15) include a power output of 50 or 100 watts that is selected using
a web based IP Conguration utility. When an odd numbered amplier channel
is congured to100 watts, it’s even numbered adjacent amplier channel (e.g.
channel 1 and 2, channels 3 and 4, channels 5 and 6, etc.) is deactivated.
There are several situations where having an SI-1650 channel with more power
is an excellent way to improve the sound. There are also applications where
having an SI-1650 channel with more power would seem to be appropriate but
is not recommended.
These are some of the most common DOs and DON’Ts:
1. Outdoors (DO) — Sound dissipates faster outside than it does in a room
where the walls enclose the sound and reect it back to the listener. A pair of
speakers playing into a large patio or yard will greatly benet from two 100
watt channels.
2. Surround Sound Systems (DO) — The dynamic demands for the center
channel are much greater than the left, right or surround channels. This is an
excellent application for conguring a channel to the 100 watt mode.
3. More than one pair of 8 ohm speakers (DON’T) — In large rooms or long
hallways, often the best way to get good background music is to install
multiple pairs of speakers. You will deliver sound much more reliably using
two pairs of 8 ohm speakers with four 50 watt amplier channels than you
would using two 100 watt amplier channels connected to two pairs of
speakers in parallel.
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SYSTEM DESIGN CONSIDERATIONS CONTINUED...
SPEAKER COMPATIBILITY
Any SI-1650 amplier channel congured to the 50 watt mode is capable of
driving a 4 ohm impedance speaker load. No more than two 8 ohm speakers or
no more than one 4-6 ohm speaker can be safely connected to a single channel.
Proper ventilation of the SI-1650 is critical when driving lower impedance loads.
If the SI-1650 is not properly ventilated, the protection circuits may activate and
shut off the channel at higher volume levels (for more information on proper
amplier placement, see Installation Considerations on page 29).
Any odd numbered SI-1650 amplier channel congured to the 100 watt mode
is capable of driving an impedance load of 8 ohms. Proper ventilation of the
SI-1650 is critical when driving an 8 ohm load with amplier channels congured
to 100 watts. If the SI-1650 is not properly ventilated, the protection circuits may
activate and shut off the channel at higher volume levels (for more information
on proper amplier placement, see Installation Considerations on page 29).
When designing your system, try to specify 6-8 ohm speakers (Niles offers a
complete line of in-wall, in-ceiling, outdoor and home theater loudspeakers with
all models rated from 6-8 ohms).
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APPLICATIONS
ADVANTAGES OF USING THE SI-1650 IN
A SINGLE ZONE SYSTEM
When you connect the preamplier outputs of your stereo receiver or stereo
preamplier to the SI-1650 BusMatrix™ you dedicate a robust 50 watts to each
speaker in your multi-room system.
The SI-1650 has an IP Conguration and Setup tool to adjust volume and tone
for each channel individually so you can compensate for architectural differences
that create sonic imbalances. In addition, you can ne tune the system so that
when all of the room volume controls are set to the loudest level, the large rooms
and the small rooms play at the same volume.
Figure 3
Blu-ray
Player
PRE-AMP or
AM/FM RECEIVER
SI-1650
Room 1 Room 2 Room 3 Room 4 Room 5 Room 6 Room 7 Room 8
CD
Player
Cable
Box
Single Zone
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
APPLICATIONS
USING A DUAL-ZONE RECEIVER FOR TWO LISTENING ZONES
Most of today’s Audio Video Receivers include a second zone preamplier output
to create a second listening zone. Using this output with the SI-1650 BusMatrix™
input provides amplication for multiple rooms within a second listening zone as
shown in Figure 4.
In addition, in this example high power is supplied to the patio stereo speakers by
conguring channel 13 for high power (left speaker) and conguring channel 15
for high power (right speaker).
Figure 4
Blu-ray
Player
DUAL-ZONE SURROUND
SOUND RECEIVER
CD
Player
Second Zone
Output
Zone 1
(Home Theater)
Front Speakers Center Speakers
SI-1650
Rear Speakers
Living Room Kitchen Ofce Bedroom Bedroom 2Family Room Patio
Unbridged Channels 1-12 (50W)
Zone 2
Bridged Channels
Cable
Box
BusMatrix™
Niles High Power
Volume Control
(13 & 15 100W)
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APPLICATIONS
EXPANDING A MULTIZONE SYSTEM TO INCLUDE
MORE ROOMS
Many MultiZone systems incorporate multiple rooms within a single zone. The
SI-1650 BusMatrix™ Input simplies the connections required for this system
design.
As shown in Figure 5, a Niles ZR-6 MultiZone Controller has its speaker outputs
connected directly to speakers in zones 1-5. The ZR-6’s preamp output six, set
to a xed output mode, is connected to the SI-1650’s BusMatrix™ inputs. The
BusMatrix™ input signals are then routed to all the amplier channels via the IP
Conguration and Setup Tool. All eight rooms connect to the SI-1650 in Zone #6
with their own room volume control for adjusting room volume levels individually.
Figure 5
Zone 1 - 5
Cable
Box
Blu-ray
Player
Niles ZR-6
MultiZone Receiver
SI-1650
Room 1 Room 2 Room 3 Room 4 Room 5 Room 6 Room 7 Room 8
ZR-6
MultiZone Receiver
Zone 6
Preamp Output
(set to xed)
321 4 5 6
CD
Player
BAND SET
FM 93.1
PRESET 1
BusMatrix™
Input 1 and 2
Speaker Outputs
Zone 6
Zone 1 Zone 2 Zone 3 Zone 4 Zone 5
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
APPLICATIONS
ADDING PREAMPS TO CREATE MORE LISTENING ZONES
In the ultimate MultiZone system, you connect individual stereo preampliers (or a
single component multi-zone/multi-source preamplier) to the BusMatrix™ inputs
of SI-1650. These independent input signals are then routed to the appropriate
amplier channels via the IP Conguration and Setup Tool creating completely
independent listening zones.
MultiZone systems enable listeners located in the separate zones to
simultaneously listen to different source components as shown in Figure 6. This
example also has the SI-1650’s High/Low Cut output feature setup to provide
satellite speaker amplication (Low Cut from 50 watt channels 13 and 14) and
subwoofer amplication (High Cut from 100 watt channel 15) for zone 7.
Figure 6
Blu-ray
Player
Matrix Switching
Preamp
SI-1650
Zone 1 Zone 2 Zone 3 Zone 4 Zone 5 Zone 6 Zone 7
Zone Outputs
CD
Player
BusMatrix Inputs 1 through 16
Cable
Box
Bridged
Channel 15
Sub
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CONFIGURING YOUR SYSTEM
Because the SI-1650 offers so many conguration possibilities it is important to
plan carefully before you install it. Draw a block diagram of your system and use
the Conguration Worksheet on page 41 to record how you plan to connect your
SI-1650.
Here is an example filled out.
SAMPLE CONFIGURATION WORKSHEET - SI-1650
Turn-On Mode Constant
Input Names
Input 1 Zone 2 Left Input 2 Zone 2 Ri ght
Input 5 Input 6 Input 7 Input 8
Input 9 Input 10 Input 11 Input 12
Input 13 Input 14 Input 15 Input 16
Channel Names and Congurations
Channel 1 Name
Signal Route Zone 2 Left
Channel 2 Name
Signal Route Zone 2 Ri ght
Channel 3 Name
Signal Route Zone 2 Left
Channel 4 Name
Signal Route Zone 2 Ri ght
Channel 5 Name
Signal Route Zone 2 Left
Channel 6 Name
Signal Route Zone 2 Ri ght
Channel 7 Name
Signal Route Zone 2 Left
Channel 8 Name
Signal Route Zone 2 Ri ght
Channel 9 Name
Signal Route Zone 2 Left
Channel 10 Name
Signal Route Zone 2 Ri ght
Channel 11 Name
Signal Route Zone 2 Left
Channel 12 Name
Signal Route Zone 2 Ri ght
Channel 13 Name
Signal Route Zone 2 Left
Channel 14 Name
Signal Route
Channel 15 Name
Signal Route Zone 2 Ri ght
Channel 16 Name
Signal Route
Livi ng Room Left
Power: n 50W o 100W Loudness o On n Off
Livi ng Room Ri ght
Power: n 50W o 100W Loudness o On n Off
Kitc hen Left
Power: n 50W o 100W Loudness o On n Off
Kitc hen Right
Power: n 50W o 100W Loudness o On n Off
Ofce Left
Power: n 50W o 100W Loudness o On n Off
Office Ri ght
Power: n 50W o 100W Loudness o On n Off
Bedro om Left
Power: n 50W o 100W Loudness o On n Off
Bedro om Right
Power: n 50W o 100W Loudness o On n Off
Roo m 5 Left
Power: n 50W o 100W Loudness o On n Off
Roo m 5 Rig ht
Power: n 50W o 100W Loudness o On n Off
Roo m 6 Left
Power: n 50W o 100W Loudness o On n Off
Roo m 6 Rig ht
Power: n 50W o 100W Loudness o On n Off
Patio Left
Power: o 50W n 100W Loudness o On n Off
Power: o 50W o 100W Loudness o On n Off
Patio Right
Power: o 50W n 100W Loudness o On n Off
Power: o 50W o 100W Loudness o On n Off
Audio Sense X
Input 3 Input 4
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
Low Pass o High Pass o
16
Voltage Trigger
Room EQ Large
Room EQ Large
Room EQ Small
Room EQ Small
Room EQ Small
Room EQ Small
Room EQ Flat
Room EQ Flat
Room EQ Flat
Room EQ Flat
Room EQ Flat
Room EQ Flat
Room EQ Outdo or
Room EQ
Room EQ Outdo or
Room EQ
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
CONFIGURING YOUR SYSTEM
The SI-1650 includes a Conguration and Setup Tool that provides easy access
to the all essential features of the amplier using the web browser on a laptop,
PC, iPad , tablet or smartphone (e.g. IE, Firefox, Chrome, Safari, etc.).
CONNECTING FOR CONFIGURATION
A direct wired Ethernet connection or a local area network connection to the RJ45 network connector on the rear panel of the SI-1650 is necessary to access the
SI-1650 Conguration and Setup Tool using a web browser.
DIRECT ETHERNET CONNECTION
A direct Ethernet connection is made by connecting the RJ-45 network connector
of a PC directly to the RJ-45 network connector on the rear panel of the SI-1650.
Use the numbered steps below to establish network communication between a
PC and the SI-1650 when using a direct wired Ethernet connection.
Note: A crossover network cable is not required when using a direct wired
Ethernet connection as the SI-1650’s network connector is auto sensing.
Windows XP
1. Select Windows Control Panel > Network Connections.
2. Right click Local Area Network and select properties.
3. Highlight Internet Protocol (TCP/IP) in the connections list and
then select properties.
4. Set a unique IP address compatible with the factory default IP address
http://192.168.1.1 (e.g 192.168.1.220)
5. Set Subnet to 255.255.255.0
Windows 7
1. Select Windows Control Panel > Network and Internet > Network and Sharing
Center.
2. Select Change Adapter Settings.
3. Right click Local Area Connection and select Properties.
4. Highlight Internet Protocol Version 4 (TCP/IPv4) in the connections list
and then select Properties.
5. Set a unique IP address compatible with the factory default IP address
http://192.168.1.1 (e.g 192.168.1.220)
6. Set Subnet to 255.255.255.0
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CONFIGURING YOUR SYSTEM
LOCAL AREA NETWORK CONNECTION
The network IP address of the SI-1650 (both the factory default address and any
address set manually using the Conguration and Setup Tool) is static and must
be a unique IP address compatible with the local area network it is connecting to.
Use the following steps to establish network communication between a PC, iPad
or Tablet and the SI-1650 when using a local area network connection.
1. Use a Windows PC and a Direct Ethernet Connection, as described above, to
initially establish communication with the SI-1650.
2. Use the Network Settings Main Selection instructions located in the on the next
page of this manual to set an IP address compatible with the local area network.
3. Connect the RJ-45 network connector on the rear panel of SI-1650 to the local
area network router or Ethernet Switch.
If you plan on connecting multiple SI-1650’s to a network, connect them one at
a time changing each amplier’s IP address to a unique address compatible with
your network.
Warning: Never allow two or more SI-1650’s to connect to the same network with the
same IP address.
Note: If necessary, the MAC ID is located on the bottom rear of the unit.
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
CONFIGURATION AND SETUP TOOL
Open the Conguration and Setup Tool Using a Web Browser. Once a direct
Ethernet or local area network connection is made, use the web browser included
with your laptop, PC, iPad, tablet or smartphone to log into the web server in the
SI-1650. Enter the current IP address of the SI-1650 into the URL line of your web
browser.
The factory default IP address of the SI-1650 is http://192.168.1.1
Note: This may be the same for another product on your network. Make sure there are no conflicts.
The Network Settings main selection is displayed when the web interface is rst
opened.
NETWORK SETTINGS MAIN SELECTION
Choose the Network Settings main selection and the Network Settings page is
displayed. The current IP address and subnet mask of the SI-1650 are displayed.
Both the IP address and the subnet mask can be changed and saved to the
amplier’s memory by selecting the save option.
Note: Changing the IP address is only recommended when connecting to a local
area network. A recessed reset button located on the back of the SI-1650 restores
the IP address, network settings and amplifier configuration back to factory
default.
FIGURE 8
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CONFIGURATION AND SETUP TOOL
AMPLIFIER CONFIGURATION MAIN SELECTION
Choose the Amplier Conguration main selection and the Input/Channel Names
sub selection page is displayed. The Channel Power, Turn On Mode and Signal
Routing sub selections are also displayed for selection and conguration.
AMPLIFIER CONFIGURATION MAIN SELECTION –
INPUT/CHANNEL NAMES SUB SELECTION
Editable Input and Channel name elds are displayed for all 16 inputs and all 16
channel outputs.
Note: Even numbered channels are listed inactive if their adjacent odd numbered
channel is set to 100 watts (e.g. when channel 15 is set to 100 watts, channel 16
is listed as inactive).
1. Select a name eld.
2. Enter the input source name, room name or zone name.
3. Select Save to save the names to the amplier’s memory.
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FIGURE 9
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
CONFIGURATION AND SETUP TOOL
AMPLIFIER CONFIGURATION MAIN SELECTION –
CHANNEL POWER SUB SELECTION
Choose the Channel Power sub selection and the Channel Power page is
displayed. All odd numbered amplier channels are congurable to output
either 50 watts or 100 watts. Odd channels are listed along with two checkbox
columns. The rst checkbox column is named 100 watts and the second is
named 50 watts.
Note: If an odd numbered channel is set to 100 watts, that channels adjacent
even number channel is listed inactive (e.g. when channel 15 set to 100 watts,
channel is 16 listed as inactive).
1. Select either 100 watts or 50 watts for each of the odd numbered channels.
2. Select Save to save the Channel Power settings to the amplier’s memory.
Default Setting: 50W (All channels on)
FIGURE 10
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21
CONFIGURATION AND SETUP TOOL
AMPLIFIER CONFIGURATION MAIN SELECTION –
TURN ON MODE SUB SELECTION
Choose the Turn On Mode sub selection and the Turn On Mode page is
displayed. Refer to page 28 for more details on the three available turn on
modes.
1. Select one of three available check boxes that corresponds to the Turn On
Mode you wish to use, Audio Sense, Voltage Trigger or Constant On.
2. Select Save to save the Turn On Mode to the amplier’s memory.
Default Setting: Constant On
FIGURE 11
22
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
CONFIGURATION AND SETUP TOOL
AMPLIFIER CONFIGURATION MAIN SELECTION –
SIGNAL ROUTING SUB SELECTION
Choose the Signal Routing sub selection and the Signal Routing page is
displayed. All 16 amplier channels are listed on the left with their names and
currently selected input shown to the right.
Note: Even numbered channels are listed inactive if their adjacent odd
numbered channel is set to 100 watts (e.g. when channel 15 set to 100 watts,
channel is 16 listed as inactive).
1. Use the pull down list of available inputs to assign a different input signal to
any channel. All available inputs and possible input combinations are included
in the pull down list along with their names (e.g. inputs 1 through 16, inputs
1+2, inputs 3+4, inputs 5+6, etc.).
2. Select Save to save Signal Routing to the amplier’s memory.
FIGURE 12
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23
CONFIGURATION AND SETUP TOOL
EQUALIZATION MAIN SELECTION
Choose the Equalization main selection and the Manual EQ Presets page is
displayed. The Room EQ sub selection is also displayed for selection and
conguration.
EQUALIZATION MAIN SELECTION –
ROOM EQ PRESETS
Choose the Room EQ Presets sub-selection and the Room EQ Presets page
is displayed. All 16 channels are listed with their names and currently selected
Room EQ Preset shown to the left.
Note: Even numbered channels are listed inactive if their adjacent odd
numbered channel is set to 100 watts (e.g. when channel 15 set to 100 watts,
channel is 16 listed as inactive).
1. Use the pull down list of available Room EQ Presets to assign a different
preset to any channel (Flat, Small, Large or Outdoor).
2. Select Save to save Room EQ Presets to the amplier’s memory.
FIGURE 13
24
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
CONFIGURATION AND SETUP TOOL
EQUALIZATION MAIN SELECTION –
MANUAL EQ SELECTION
Choose the Manual EQ sub-selection and the Manual EQ page is displayed. The
amplier channels are included in a single pull down list along with their names.
Note: If an odd numbered channel is set to 100 watts, it even numbered
adjacent channel will not be included in the pull down list (e.g. when channel 15
set to 100 watts, channel 16 will not be included in the pull down list).
1. Choose a channel from the pull down list to adjust its EQ parameters. The
current Room EQ Preset is displayed for the selected channel. If any manual
adjustments are made and saved, the room preset display changes to
“None”.
2. Select or deselect Loudness, Low Cut or High Cut and use the individual
arrow buttons to adjust volume, bass, midrange, treble, midrange center
frequency and midrange bandwidth for the selected channel.
3. Copy EQ Settings saves all manual EQ parameters for the selected channel
to a clipboard including loudness, low cut, high cut, volume, bass, midrange,
treble, midrange center frequency and midrange bandwidth.
4. Paste EQ Settings applies the saved clipboard settings to any other selected
channel.
5. Set Flat sets the selected channel to the default Flat Room EQ Preset and
volume at 0dB.
6. Select Save to save
Manual EQ settings to the
amplier’s memory.
FIGURE 14
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25
CONFIGURATION AND SETUP TOOL
UTILITIES MAIN SELECTION
Choose the Utilities Main Selection and the Project Information page is
displayed. The Generate Report, Create Backup File and Restore From File sub
selections are also displayed for selection and use.
UTILITIES MAIN SELECTION –
PROJECT INFORMATION SUB SELECTION
Choose the Project Information sub selection and the Project Information page
is displayed. Editable project information includes dealer name, customer name,
installer name, installation date and comments.
1. Place the cursor in a data eld and enter new information using the keyboard
2. Select Save to save the Project Information edits to the amplier’s memory.
Note: Name and date fields are 20 characters maximum. Comments field is 110 characters maximum.
FIGURE 16
26
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
CONFIGURATION AND SETUP TOOL
UTILITIES MAIN SELECTION –
GENERATE REPORT SUB SELECTION
Choose the Generate Report sub selection and the Generate Report page is
displayed.
1. Select Generate Report to Screen to generate a complete conguration report
to a new browser window.
2. Select Generate Report to File to save the report to a htm le. Use the Save
As window to browse for a location for the Report.htm le. Enter a unique
name and select Save.
UTILITIES MAIN SELECTION – CREATE BACKUP FILE
SUB SELECTION
Select this option to create a backup SI-1650 conguration le with all the
current settings of the SI-1650 you are connected to. Click Save then use
the Save As window to browse for a location for the conguration le, enter a
unique name and select Save.
UTILITIES MAIN SELECTION – RESTORE FROM FILE
SUB SELECTION
Select this option to restore a previously saved conguration le back into a
connected SI-1650. Click Browse and use the “Choose le to upload” window
to browse for the conguration le and select Open. Click Upload to nish
the operation. The selected backup SI-1650 conguration le will replace the
current conguration in the SI-1650.
NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992
FIGURE 17
27
INSTALLATION CONSIDERATIONS
TURN-ON MODES
Automating the turn-on of your SI-1650 is one of the easiest steps when
installing it in a distributed system. However, do not plug the main power
cord into the switched AC outlet of your preamplier or receiver. The high
power design of the SI-1650 requires large amounts of current from its AC
power source. Additionally, it is always recommended to activate the system
preamplier/receiver before turning on your SI-1650 in order to prevent system
“turn-on thumps”.
In order to address these important needs, the SI-1650 has three special turnon modes that let you turn the amplier on only when it is needed. Use the
Conguration and Setup Tool to access and select one of these three Turn-On
options.
Important! The Front Panel Power Switch must be in the ON (switch in)
position for any of the three turn-on options to function (refer to page 36
for more information concerning the Front Panel Power Switch).
FIGURE 18
Constant – The auto turn-on circuitry is off. The front panel master power
switch operates the amplier. In is “On”, Out is “Off”.
Audio Sense – The master switch on the front panel must be in the “On”
position. The amplier is off when there is no audio signal present at any of the
audio inputs, but the sensing circuitry is on. The turn-on sensing circuitry looks
for a tiny amount of audio signal present at any of the audio inputs. If it detects
a signal, all the amplier channels will turn on. Once the audio signal stops, the
sensing circuit waits three minutes, then turns all amplier channels off.
28
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
INSTALLATION CONSIDERATIONS
3-24 VOLT AC/DC OPTO-ISOLATED VOLTAGE TRIGGER - The Power
switch on the front panel must be in the “On” position for the voltage trigger to
function. When a Trigger Plug is inserted into the rear panel connector and the
sensing circuitry detects a voltage, the amplier is turned on. Once the Trigger
voltage is turned off, the sensing circuit instantly turns the amplier off. The
amplier is off when there is no 3-24V AC or DC voltage detected at the trigger
input. Voltage triggers can be supplied by Niles automated switchers, some
video projectors, some surround sound processors, or something as simple
as a 12 volt AC wall adapter plugged into the switched outlet of your stereo
receiver. Linear DC wall adapters are not recommended; the long discharge time
of the DC adapter’s lter capacitor will delay the turn-off of the amplier. Trigger
sources must be 3-24VAC or DC, 20mA or greater.
If the cabinet rear is not open to
fresh air, install two small “boxer
fans” to provide continuos air ow
into and out of the cabinet
Make sure that there is a minimum of 5” of free air
space above the amplier and 3” on each side for
proper ventilation.
If the cabinet rear is not open to fresh air or if you’re
using low impedance loads, install two “boxer fans”
to provide continuous air ow into and out of the
Allow a minimum of 2” of depth behind unit
to accommodate cables and connectors.
FIGURE 19 FIGURE 20
cabinet.
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29
INSTALLATION CONSIDERATIONS
PLACEMENT
Place the SI-1650 on a at, level surface like a table or shelf. It should be placed
upright so that its weight rests on the unit’s four feet. PLACING THE WEIGHT
OF THE AMPLIFIER ON THE REAR OR FRONT PANEL FOR EVEN AN INSTANT
WILL RESULT IN DAMAGE TO THE AMPLIFIER’S CONNECTORS AND
CONTROLS.
The SI-1650, like any hi- component, will last much longer if it is given
adequate ventilation for proper cooling. When installing the SI-1650 in a cabinet,
be sure that the rear of the cabinet is open to fresh air to provide proper cooling
(see Figure 19). If the cabinet’s design will not accommodate an open rear,
install two small “boxer fans” to provide continuous air ow into and out of the
cabinet (see Figure 20). Place the SI-1650 so that there is at least 5” of free air
space above the chassis and 3” of space on each side. If the amplier is located
on a carpeted surface, place a board under the amplier’s feet. Do not block the
ventilation holes on the top and bottom of the SI-1650.
The SI-1650 is equipped with a power transformer. This transformer generates
a powerful magnetic eld which could induce hum in a turntable (particularly
a turntable equipped with a moving coil cartridge). Do not place a turntable
directly above or directly adjacent to the SI-1650.
30
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
INSTALLATION
BUS MATRIX™ LINE LEVEL AUDIO INPUTS
CAUTION! THE AMPLIFIER MUST BE OFF WHENEVER YOU MAKE CHANGES TO THE
INPUT CONNECTIONS.
STEP DESCRIPTION
1. Label all of the interconnecting cables for the sources
they connect to.
2. Connect the sources by inserting the RCA
plug into the amplifier’s jacks.
Use audio patch cables with RCA phono plugs
attached to the ends.
Connect outputs from your sources to inputs on
the amplifier. Never connect a source or
preamplifier’s input (e.g., record inputs) to the
inputs of your SI-1650.
CASCADE AUDIO OUTPUTS
The Cascade Audio Outputs enable you to connect another amplier to your
preamplier output. The connectors are gold-plated RCA phono jacks. Connect
them to another amplier’s inputs with a standard audio patch cable. The
outputs are not buffered; if you wish to daisy-chain more than 5 Niles ampliers
you will need a Niles AVDA-3 buffered distribution amplier. If your preamp has
a vacuum tube output stage, you must use a Niles AVDA-3 to drive more than a
single SI-1650.
AC POWER PLUG
STEP DESCRIPTION
1. Plug the female IEC socket of the supplied AC power
cord (the supplied power cord is designed for 120V AC
wall outlets), or use an appropriate IEC AC power cord
to match the electrical wall outlet you are using (e.g.
240V AC), into the IEC receptacle on the rear of the
amplifier. Replace the fuse in the bay below the power
cord inlet with one of the 10A fuses provided if using a
220-240V outlet.
If you use a grounded power strip, surge
suppressor or extension cord, verify that proper
ground is maintained.
The SI-1650 draws a maximum of approximately
CAUTION! Do not plug the amplifier’s cord into a
preamplifier’s convenience outlets.
1600 watts from an AC wall outlet. This is much
more than the typical accessory outlet on the back
of a component will provide. Use the SI-1650’s
auto turn on circuitry to turn on the SI-1650
whenever the preamp is on.
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31
SPEAKER OUT
INPUT
LINE OUT
99101011111212131314
14
9 10 11 12 13 14 15 16
CLASS 2 WIRING
Front panel “Master Power”
switch turns off the entire
amplier, including the
Turn-On circuitry
Power LED illuminates to
conrm the amplier is
connected to a live AC power
outlet and that the master
power switch is on.
3.5 mm Jack for
3-24V AC/DC Trigger Output
32
Factory Default
Reset Switch
TRIGGER
IN
OUT
1 2 3 4 5 6 7 8
112233445566778
SPEAKER OUT
CLASS 2 WIRING
INPUT
LINE OUT
Banana binding posts for
speaker connections
RESET
8
Minimum impedance:
8 Ω (50W mode)
4 Ω (100W mode)
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
Bicolor Status LEDs, one for
each of the sixteen channels,
illuminate “green” when the
amplier circuitry has been turned
on by the Turn-On circuits, and
illuminates “red” to indicate
activation of the amplier’s built-in
protection circuitry
Removable feet for
rack mounting
Bus Matrix™ Input Gold
Plated RCA Jacks
INPUT
9910101111121213131414151516
LINE OUT
SPEAKER OUT
Cascade Audio Output
Gold Plated RCA Jacks
SI -1650
16
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following
two conditions: (1) this device may not cause
harmful interference, and (2) this device
must accept any interference received,
including interference that may cause
undesired operation.
9 10 11 12 13 14 15 16
CLASS 2 WIRING
NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992
RJ-45 Ethernet
TCP/IP Connection
Systems Inte gration Amplif ier
Niles Audio, Carlsbad, California, USA
Designed and Engineered in the USA. Made in China.
Serial No.
This Class B digital apparatus
complies with Canadian
ICES-003.
Cet appareil numérique de la
classe B est conforme à la
norme NMB-003 du Canada.
CAUTION: replace only with
same type and rating of fuse.
ATTENTION: remplacer
uniquement avec le même
type et calibre du fusible.
100-120 / 220-240 V~
50 / 60 Hz, 1000W
Fuse: 100-120V: T15AL, 250V
220-240V: T10AL, 250V
Removable 2-prong
16 gauge 6’ AC power cord.
®
33
INSTALLATION
SPEAKER WIRE CONNECTIONS
CAUTION! ALL SPEAKER WIRE CONNECTIONS MUST BE MADE WITH THE AMPLIFIER OFF.
Banana Plugs
Bare Wire
Unscrew the red or
black plastic knob,
insert the bare wire
end into the opening,
and then tighten the
knob until the wire is
securely clamped
There are many types of
banana plugs, some crimp,
some solder. The Niles
gold banana plug has 3
quick-connect binding
posts for the bare wire
on the body of the plug.
A banana plug is simply
inserted into the jack at
the end of the amplier’s
binding post.
STEP DESCRIPTION
1. Label all wires.
2. Connect one stripped wire end or banana
plug to the black terminal and one to the
red terminal. CAUTION- Avoid having even a
single strand of wire touching the chassis or
another connector.
34
If you label the wires for their destination, rather than which
terminal of the SI-1650 they are connected to, it will be easier
to reconfigure your system in the future.
A. Split the speaker wire insulation so that at least two inches
of each conductor are separated.
B. Strip one half inch of insulation from the end of each
conductor of the speaker wire
C. Attach banana plugs or twist the strands of wire together
and insert them into the appropriate binding post.
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
INSTALLATION
THE CONTROL OUTPUT
This terminal provides a 12V DC signal
suitable for triggering Niles automated
switchers, some motorized screens, some
electric curtain controls, etc. This voltage is
present only when the amplier is active or on.
When the amplier turns off, the 12V signal is
off.
STEP DESCRIPTION
1. Check the requirements of the device you want
to control.
2. Connect the 3.5 mm Jack to the control output
maintaining proper polarity
(tip = +).
The control output has a maximum current
capability of 150 mA.
Niles makes an accessory cable plug
FG00724.
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35
OPERATION
POWER SWITCH
The front panel switch is a master or “vacation” power switch. No matter which
turn-on mode you have selected, the master power switch will turn off all circuitry including the sensing circuitry. If you will not be using the amplier for an
extended period of time, turn the master power switch “Off” (push button switch
out). When you would like to return to normal operation, turn the switch “On”
(push button switch in).
IMPORTANT NOTES: EQUIPMENT IS NOT COMPLETELY DISCONNECTED FROM MAIN POWER SOURCE
WHEN POWER SWITCH IS IN THE “OFF” POSITION.
POWER LED
The power LED indicates that the AC cord is plugged into a working AC power
receptacle and that the power switch is in the “On” position.
BICOLOR STATUS LED
The bicolor Status LEDs illuminate “green” when the amplier circuitry for the
respective channel has been turned on by the Turn-On circuits, and illuminates
“red” to indicate activation of the amplier channel’s built-in protection circuitry
due to either a fault in the wiring or the speaker, or with the Niles System
Integration Amplier® itself.
USING LEVEL CONTROLS AS LIMITERS
If your system is remote controlled, or if you think that some of the users like
to play the stereo too loudly, you can choose to calibrate the system so that it
is limited to a volume level you assign. The SI-1650 allows you to set different
volume levels for different rooms. Calibrate your system volume levels with the
steps outlined below:
1. Lower all of the SI-1650 level controls to the minimum volume position. If there are
any other ampliers in the system, lower their level controls to the minimum (all of the
ampliers in your system must have level controls).
2. Raise all of the individual in-wall volume controls to the loudest setting.
3. Play a loud radio station with the tuner set to Mono.
4. Raise the volume of your preamplier or receiver slowly– if you hear any sound, lower
the volume again and recheck all of your amplier levels, they must be at minimum. If
no sound is heard, proceed to step ve.
5. Have someone step into each room and listen as you adjust each level control to the
desired maximum level for that room. Adjust the balance between speakers for the
most common listening position in each room.
36
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
OPERATION
LISTENING AT HIGHER VOLUMES
Fifty watts is enough power to play a conventional speaker in a normal sized
room loudly enough to completely drown out conversation. Even at levels like
that, the SI-1650 will sound clear and clean. However, it requires more power
to achieve a reasonable volume of sound in a large room than it does in a small
room. It is possible (even if you are not a teenager) to turn the volume so high
that the amplier runs out of power. This creates “clipping” distortion.
Clipping distortion makes treble sound very harsh and unmusical. When you
hear harsh sounding treble from any good speaker, turn the volume down
immediately! Those harsh sounds are masking some much more powerful
high frequency sound spikes which will quickly damage the tweeter of any
loudspeaker.
If you continue to operate the amplier at “clipping” power levels the protection
circuits will operate when the amplier overheats. The protection circuits reset
when the amplier’s internal circuitry cools. Reduce the volume to prevent a
reoccurrence. Perpetually overdriving your speakers and amplier is abuse and
probably voids the manufacturer’s warranty of all affected products.
CLEANING AND MAINTENANCE
The internal parts of the SI-1650 are electronic and require no maintenance.
Once a year it is appropriate to twist the RCA connectors on each input to
remove any oxidation and improve conductivity.
You can clean only with dry cloth. Do not use any spray-type, abrasive cleaners
on the amplier.
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37
TROUBLE-SHOOTING GUIDE
When there is a problem consult this guide rst. If the problem persists, or you
have additional questions, call your local Niles dealer or call Niles Technical
Support at 1-800-289-4434. The most common problems relate to hook up. Have
your conguration worksheet handy when you call.
Symptom Possible Causes and Test Procedure
Short circuit or loose wire at speaker or amplifier terminals. Check that connections are secure
and that there are no loose strands of wire crossing from the positive to the negative terminal
at the back of the amplifier and the speaker.
Short circuit or a break in the speaker wire. Disconnect the speaker wire at both ends, separate
the 2 conductors at both ends and test with a meter for a short circuit. If there is no short,
No sound on one
channel
No sound on some or
all channels
connect the two conductors at one end and test with a meter for continuity.
Speaker is not working. Connect the speaker to a channel that plays another speaker. Audio
cable to dedicated input is bad. Connect the non-working channel input to another cable that is
known to be good.
Adjacent channel set to High Power Mode. Check your configuration worksheet for the correct
setting and verify. The thermal protection circuit has operated because of overheating caused
by overdriving or inadequate ventilation. Check front panel status LEDs.
Check your configuration worksheet and verify all settings.
Audio cable to the inputs is bad. Connect the nonworking channel input to another cable that is
known to be good. Some or all of the internal amplifier fuses are blown. (Return the amplifier to
your dealer for service).
38
Hum from all the
speakers
Amp will not turn on
Hum may be caused by a ground loop between two components in the system. Test for a
ground loop by reversing the AC plugs of any components in the system with non polarized AC
plugs.
Check for faulty cables, faulty source material, an ungrounded phono system, cable TV feed or
a defective component.
Master power switch must be on.
AC power cord must be plugged into a working outlet.
Test that the AC power receptacle is working. If the outlet tests O.K., the internal fuses are
blown. Return the amplifier to your dealer for service.
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
TROUBLE-SHOOTING GUIDE
Symptom Possible Causes and Test Procedure
Sound is distorted
on one or all of the
channels at normal
volumes
Normal volume cannot
be reached
Check your configuration worksheet and verify all settings.
One of the internal amplifier fuses is blown. (Return the amplifier to your dealer for service).
Bass sound is weak
and the stereo image is
“phasey” sounding in
one room
Check that the bridging switch is “Off”. If two adjacent channels are connected normally but
the bridging switch is set to the “Bridged” position, the two speakers will play out of phase
with each other.
The loudspeakers are wired out of phase. Reverse the connections at the back of one speaker.
BY PHONE (IN USA)
1-800-BUY-HIFI (289-4434)
BY PHONE (OUTSIDE USA)
1-760-710-0992
CUSTOMER SERVICE HOURS
8:00 AM to 5:30 PM PT
TECHNICAL SUPPORT HOURS
6:00 AM to 4:00 PM PT
ON THE WEB
www.nilesaudio.com
EMAIL TECHNICAL SUPPORT
techsupport@nilesaudio.com
EMAIL FOR PRODUCT SUGGESTIONS
productsuggestions@nilesaudio.com
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39
SPECIFICATIONS
Detail SI-1650
Design Principle
Continuous
Average Power
Output
Continuous
Average Power
Output Bridged
Frequency
Response
Signal to Noise
Ratio
Total Harmonic
Distortion
Channel
Separation
Overall
Dimensions
Digital, high current bridgeable multi-channel amplifier
50 watts RMS per channel into 8 Ohms ,
100 watts RMS per channel into 4 Ohms
100 watts RMS per channel into 8 Ohms
Bandwidth Limited from 5Hz to 25kHz
20Hz to 20kHz un-weighted > 102 dB
@ 1kHz <0.06% THD + N
@ 1kHz >70dB
438.1 mm (17 ¼“) wide
144.7 (5 ¾”) high (including feet)
411.1mm (16 ¼“) deep
Weight
AC Mains:
40
Weight 26.2 lb., 11.9 kg
100-120 / 220-240 V~, 50 / 60 Hz
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16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
CONFIGURATION WORKSHEET
For ease of use, the Conguration Worksheet can be enlarged on a photocopier.
CONFIGURATION WORKSHEET - SI-1650
Turn-On Mode Constant Audio Sense Voltage Trigger
Input Names
Input 1 Input 2 Input 3 Input 4
Input 5 Input 6 Input 7 Input 8
Input 9 Input 10 Input 11 Input 12
Input 13 Input 14 Input 15 Input 16
Channel Names and Congurations
Channel 1 Name
Signal Route
Channel 2 Name
Signal Route
Channel 3 Name
Signal Route
Channel 4 Name
Signal Route
Channel 5 Name
Signal Route
Channel 6 Name
Signal Route
Channel 7 Name
Signal Route
Channel 8 Name
Signal Route
Channel 9 Name
Signal Route
Channel 10 Name
Signal Route
Channel 11 Name
Signal Route
Channel 12 Name
Signal Route
Channel 13 Name
Signal Route
Channel 14 Name
Signal Route
Channel 15 Name
Signal Route
Channel 16 Name
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Power: o 50W o 100W
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Loudness o On o Off Low Pass o High Pass o
Room EQ
Room EQ
Room EQ
Room EQ
Room EQ
Room EQ
Room EQ
Room EQ
Room EQ
Room EQ
Room EQ
Room EQ
Room EQ
Room EQ
Room EQ
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41
LIMITED WARRANTY
Niles Audio Corporation (“NILES”) warrants to the original retail purchaser only that this product will be free of manufacturing defects
in material and workmanship for the following periods and subject to the limitations and exclusions set forth below:
Lifetime Warranty
All Passive Amplifier Products (those not requiring AC or battery power).
Ten years from the date of purchase
All Other Passive Products (those not requiring AC or battery power).
Two years from the date of purchase
All Active Products (those requiring AC or battery power).
This warranty is not transferable to subsequent purchasers of the product. To obtain warranty service, contact the authorized dealer
where you purchased your product or take the unit to the nearest authorized NILES dealer (with proof of purchase – claims made
without proof of purchase will be denied) who will test the product and if necessary, forward it to NILES for service. If there are no
authorized NILES dealers in your area, you must contact NILES to receive a factory Return Authorization Number. DO NOT RETURN
ANY UNIT WITHOUT FIRST RECEIVING WRITTEN AUTHORIZATION AND SHIPPING INSTRUCTIONS FROM NILES.
Upon examination, NILES will, at its sole option and expense, repair or replace any product found to be defective. NILES will return
the repaired or replaced unit to you via its usual shipping method from the factory to your address in the United States of America or
Canada only. Any shipping costs for addresses outside of the United States or Canada shall be the responsibility of the purchaser.
In the event that this model is no longer available and cannot be repaired effectively, NILES, at its sole option, may replace it with
a different model of equal or greater value, or refund the original purchase price paid. THE FOREGOING ARE YOUR EXCLUSIVE
REMEDIES FOR BREACH OF WARRANTY.
This Warranty does not include service or parts to repair damage caused by improper use or handling, including but not limited to
damage caused by accident, mishandling, improper installation, commercial use, abuse, negligence, or any defect caused by repair
to the product by anyone other than NILES.
This warranty does not cover reimbursement for your costs of removing and transporting the product for warranty service
evaluation, or installation of any replacement product provided under this warranty.
This Warranty will be void if:
•the Serial Number on the product has been removed, tampered with or defaced.
• the product was not purchased from an authorized dealer or reseller.
THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESSED AND IMPLIED WARRANTIES.
NILES EXPRESSLY DISCLAIMS ALL SUCH OTHER WARRANTIES, INCLUDING BUT NOT LIMITED TO IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT, WITH RESPECT
TO THE PRODUCT. TO THE MAXIMUM EXTENT PERMITTED BY LAW, NILES SHALL NOT BE RESPONSIBLE FOR ANY
INCIDENTAL OR CONSEQUENTIAL DAMAGES EXCEPT TO THE EXTENT PROVIDED (OR PROHIBITED) BY APPLICABLE
LAW, EVEN IF NILES HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Notwithstanding the above, if you qualify as a “consumer” under the Magnuson-Moss Warranty Act, or applicable state laws, then
you may be entitled to any implied warranties allowed by law for the Warranty Period. Further, some states do not allow limitations
on how long an implied warranty lasts or allow the exclusion or limitation of consequential damages, so such limitations may not
apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
For the name of your nearest authorized NILES dealer, contact: CORE Brands LLC, 1690 Corporate Circle, Petaluma, California
94954, or call 1-760-710-0992. Please be advised that NILES only sells its products via the Internet through a select group of
authorized Internet dealers. These are listed on our website at www.nilesaudio.com. Products offered on the Internet through
unauthorized Internet dealers are not covered by the NILES warranty and may be either:
1) goods acquired on a secondary or grey market
2) counterfeit or stolen goods
3) damaged, or defective goods
Please fill in your product information and retain for your records.
Model ______________________ Serial No. _____________________________________________ Purchase Date ______________
ATTENTION: TO OUR VALUED CONSUMERS:
To insure that consumers obtain quality pre-sale and after-sale support and service, NILES products are sold exclusively through
authorized dealers. This warranty is VOID if the products have been purchased from an unauthorized dealer.
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WWW.NILESAUDIO.COM
16 CHANNEL, FULLY CONFIGURABLE POWER AMPLIFIERS
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NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992
43
1690 Corporate Circle, Petaluma, CA 94954
1-760-710-0992
1-800-BUY-HIFI – www.nilesaudio.com
©2013 The CORE Brands, LLC. All rights reserved. Niles and the Niles logos are registered
trademarks of CORE Brands, LLC. All other trademarks are the property of their respective
owners. We reserve the right to change specifications, descriptions and prices without notice.
The technical and other information contained herein is not intended to set forth all technical
and other specifications. Designed and engineered in the USA. 9901255 Rev A
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