KRAMER ELECTRONIC S LTD.
USER MANUAL
MODEL:
Tavor 8- Su b
Powered Subwoofer
P/N: 2900-300397 Rev 4
Tavor 8-Sub - Introduction
1
Contents
1 Introduction 2
2 Getting Started 3
2.1 Achieving the Best Performance 3
2.2 Recycling Kramer Products 4
3 Overview 5
4 Defining the Tavor 8-Sub 7
5 Installing the Tavor 8-Sub 9
5.1 Choosing the Best Location 9
5.2 Installing the Tavor 8-Sub 10
5.3 Tavor 8-Sub Different Setups 11
6 Mounting the Tavor 8-Sub on the Wall 16
7 Technical Specifications 18
Figures
Figure 1: Tavor 8-Sub Front Panel 6
Figure 2: Tavor 8-Sub Rear Panel 6
Figure 3: Tavor 8-Sub Active Speaker 7
Figure 4: Connecting via LFE 12
Figure 5: Connecting via Line Input 13
Figure 6: Connecting via High Level Input 14
Figure 7: Connecting to an Active Speaker 15
Figure 8: Installing the Bracket 16
Figure 9: Mounting Tavor 8-Sub over the Bracket 17
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Tavor 8-Sub - Introduction
1 Introduction
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been
providing a world of unique, creative, and affordable solutions to the vast range of
problems that confront video, audio, presentation, and broadcasting professionals
on a daily basis. In recent years, we have redesigned and upgraded most of our
line, making the best even better!
Our 1,000-plus different models now appear in 14 groups that are clearly defined
by function: GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Routers;
GROUP 3: Control Systems; GROUP 4: Format/Standards Converters; GROUP 5:
Range Extenders and Repeaters; GROUP 6: Specialty AV Products; GROUP 7:
Scan Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9:
Room Connectivity; GROUP 10: Accessories and Rack Adapters; GROUP 11:
Sierra Video Products; GROUP 12: Digital Signage; GROUP 13: Audio; and
GROUP 14: Collaboration.
Congratulations on purchasing your Kramer Tavor 8-Sub Powered Subwoofer,
which is ideal for the following typical applications:
• Boardrooms
• Presentation venues
• Conference rooms
• Home theater
• Educational classrooms
Tavor 8-Sub - Getting Started
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2 Getting Started
We recommend that you:
• Unpack the equipment carefully and save the original box and packaging
materials for possible future shipment
• Review the contents of this user manual
Go to www.kramerelectronics.com/support/product_downloads.asp
to check for up-to-date user manuals, application programs, and to check if
firmware upgrades are available (where appropriate).
2.1 Achieving the Best Performance
To achieve the best performance:
• Use only good quality connection cables to avoid interference, deterioration
in signal quality due to poor matching, and elevated noise levels (often
associated with low quality cables)
• Do not secure the cables in tight bundles or roll the slack into tight coils
• Avoid interference from neighboring electrical appliances that may adversely
influence signal quality
• Position your Kramer Tavor 8-Sub away from moisture, excessive sunlight
and dust
This equipment is to be used only inside a building. It may only be
connected to other equipment that is installed inside a building.
Do not open the housing of the speaker; doing so may reduce the
quality of the sound.
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Tavor 8-Sub - Getting Started
2.2 Recycling Kramer Products
The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC
aims to reduce the amount of WEEE sent for disposal to landfill or incineration by
requiring it to be collected and recycled. To comply with the WEEE Directive,
Kramer Electronics has made arrangements with the European Advanced
Recycling Network (EARN) and will cover any costs of treatment, recycling and
recovery of waste Kramer Electronics branded equipment on arrival at the EARN
facility. For details of Kramer’s recycling arrangements in your particular country
go to our recycling pages at www.kramerelectronics.com/support/recycling/.
Tavor 8-Sub - Overview
5
3 Overview
The Tavor 8-Sub is an attractive powered Subwoofer that is used to reproduce
the low-range audio frequencies (the bass) in a sound system. It has a control and
connection panel as well as the woofer on its rear panel and a bass port facing
downwards. The Tavor 8-Sub can be mounted on the wall, on the floor or next to
the wall in a way that hides the control panel.
The Tavor 8-Sub powered subwoofer features:
• Three optional input methods:
▪ A line level stereo on RCA connectors to connect to the pre-amplifier
output connector on a receiver/amplifier
▪ An LFE input on an RCA connector to connect to the pre-amplifier
output connector on a receiver/amplifier
▪ A high level input to connect to the subwoofer connector on the audio
source as well as to the speakers directly
• A volume level knob button
• A crossover frequency knob button (65Hz to 150Hz)
• Two optional power settings (110-120V or 220-240V)
• An optional auto standby mode
• Reverse phase selection (0 or 180 degrees)
The Tavor 8-Sub is enclosed in a wooden cabinet.
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Tavor 8-Sub - Overview
Figure 1 shows the front panel and Figure 2 shows the Tavor 8-Sub rear panel:
Figure 1: Tavor 8-Sub Front Panel
Figure 2: Tavor 8-Sub Rear Panel
Tavor 8-Sub - Defining the Tavor 8-Sub
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4 Defining the Tavor 8-Sub
This section defines the active Tavor 8-Sub:
Figure 3: Tavor 8-Sub Active Speaker
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Tavor 8-Sub - Defining the Tavor 8-Sub
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Feature
Function
1
HIGH LEVEL INPUT
L (+ and -)
Connect to an amplified audio source (for
example, an amplifier)
2
R (+ and -)
3
LINE LEVEL INPUT (L/LFE and R)
on RCA Connectors
Connect to the subwoofer output on the
amplifier/powered speakers (either to the LFE
output or to the LEFT and RIGHT outputs (for
example, the Tavor 5-O))
4
VOLUME Control Knob
Rotate the button to adjust the audio volume
5
CROSSOVER Control Knob
Rotate the button to adjust the upper
transmission frequency
6
Phase Switch
Set to 0 or 180 degrees
7
Auto Standby Switch
Set to on for the subwoofer to enter standby
mode automatically when idle for over 10
minutes, set to off to disable auto standby
8
POWER Settings Slide Switch
Set to 110-120V or to 220-240V
9
ON Switch
Set to ON to power the Subwoofer
10
Power Connector with Fuse
AC connector, enabling power supply to the
unit
Tavor 8-Sub - Installing the Tavor 8-Sub
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5 Installing the Tavor 8-Sub
This section explains how to:
• Choose the best location (see Section 5.1)
• Install the wires (see Section 5.2)
Section 5.3 describes the different subwoofer setups.
5.1 Choosing the Best Location
You can position your Tavor 8-Sub:
On the floor with the woofer facing the
floor (horizontally placed)
On the wall with the woofer facing the
wall and the bass port facing
downwards (see Section 6)
On the floor vertically with woofer
facing the wall and the bass port facing
the floor.
Stick the four self-adhesive rubber feet
firmly into place to create some free
space around the bass port and ensure
proper air relief.
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Tavor 8-Sub - Installing the Tavor 8-Sub
Make sure that you:
• Keep the vibrations to a minimum
• Do not cover or place anything on the Tavor 8-Sub
Before installing the subwoofer:
• Experiment by placing the subwoofer in different locations and check the
sound before finally deciding on the most suitable location (see installation
instructions in Section 5.2) where the subwoofer sound blends smoothly with
the speakers.
Note that the ideal place would be between the two front speakers, but other
locations may produce good results.
• Do not place the subwoofer directly in the central dividing line of the room, it
should be located toward the left or the right of the central dividing line
5.2 Installing the Tavor 8-Sub
To install the Tavor 8-Sub:
1. Connect one of the optional inputs to a receiver or to an active speaker (see
Section 5.3)
2. Connect the power.
3. Press the ON switch.
4. If the subwoofer is located in front of the listeners (next to the front
speakers), set the phase to 0. If it is located behind them (next to the rear
speakers) set it to 180.
You can further optimize the subwoofer phase in the following way: after
choosing the location of the subwoofer:
▪ Sit at the center of the main listening area
▪ Play a 80Hz signal through your audio system
▪ Measure dBSPL in both 0 and 180 degrees settings (using your ears
(loudness) or via an application or a dB meter)
Whichever setting is louder (higher dBSPL) is the recommended setting to
use.
Tavor 8-Sub - Installing the Tavor 8-Sub
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5. Set the Crossover frequency knob to the lower range of the main speakers
(if the main speakers have a frequency response of 100Hz to 20kHz set the
crossover frequency to 100Hz).
6. Turn the volume all the way down.
7. Play a track with deep bass and rich in low frequencies.
8. Listen to the bass line and set the Tavor 8-Sub volume to the point where
the bass sounds most balanced. The subwoofer should not be louder
compared to the rest of the system; it might sound muddy or ‘boomy’.
9. Fine tune the Tavor 8-Sub volume and crossover frequency where it sounds
best and blends smoothly with the rest of the speakers’ sound.
Note that if you decide to place the Tavor 8-Sub vertically on the floor, you
need to stick the four self-adhesive rubber feet firmly into place to create
some free space around the bass port and ensure proper air relief.
5.3 Tavor 8-Sub Different Setups
The Tavor 8-Sub has several optional setups:
You can connect it directly to an amplifier/receiver via the:
• LFE (Low Frequency Effects) input (recommended for surround systems),
see Section 5.3.1
• LINE LEVEL INPUT, see Section 5.3.2
• HIGH LEVEL INPUT, see Section 5.3.3
You can also connect the Tavor 8-Sub to an active speaker as described in
Section 5.3.4.
Sending a 50W input to the Hi-Level inputs and setting full volume on
the LFE inputs – might damage the Tavor 8-Sub.
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Tavor 8-Sub - Installing the Tavor 8-Sub
5.3.1 Connecting to a Receiver via the LFE Input
Some receivers have an LFE or pre-out connector (a low frequency effects
channel) which is a channel dedicated to the low frequencies for Dolby® Digital or
DTS® receiver (typically used for surround systems).
To connect via the LFE input, connect the Pre-out, LFE or Subwoofer Out (or any
other similar name) RCA connector on the receiver to the LFE input on the Tavor
8-Sub via an RCA cable.
Figure 4: Connecting via LFE
Tavor 8-Sub - Installing the Tavor 8-Sub
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5.3.2 Connecting to a Receiver via the Line Level Input
If the receiver/processor has Subwoofer outputs (and does not include Dolby®
Digital or DTS®) use the Subwoofer outputs to connect to the subwoofer:
1. Connect the receiver subwoofer output left RCA connector to the L LINE
LEVEL INPUT RCA connector, via an RCA cable.
2. Connect the receiver subwoofer output right RCA connector to the R LINE
LEVEL INPUT RCA connector, via an RCA cable.
Use the CROSSOVER control button on the Tavor 8-Sub to set the optimal
crossover frequency of the system.
Figure 5: Connecting via Line Input
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Tavor 8-Sub - Installing the Tavor 8-Sub
5.3.3 Connecting to a Receiver via the High Level Input
If the receiver does not have a dedicated subwoofer output, connect it to the
Tavor 8-Sub using the receiver’s speaker outputs via regular speaker wires. The
low frequencies will be set via the Crossover control knob.
To connect via the high level input:
1. Connect the Left + and – speaker output connectors on the receiver to the +
and – L HIGH LEVEL INPUT connectors on the Tavor 8-Sub, respectively,
using speaker wires.
2. Connect the Right + and – speaker output connectors on the receiver to the
+ and – R HIGH LEVEL INPUT connectors on the Tavor 8-Sub,
respectively, using speaker wires.
Figure 6: Connecting via High Level Input
Tavor 8-Sub - Installing the Tavor 8-Sub
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5.3.4 Connecting to an Active Speaker via the Line Level Input
When using an active speaker, for example the Tavor 5-O, you can connect the
Tavor 8-Sub directly to the speaker via its SUB OUT connector using the Kramer
Mini Jack (3.5mm) to RCA cable (C-A35M/2RAM) as illustrated in Figure 7:
Figure 7: Connecting to an Active Speaker
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Tavor 8-Sub - Mounting the Tavor 8-Sub on the Wall
6 Mounting the Tavor 8-Sub on the Wall
You can place the Tavor 8-Sub vertically or horizontally or use the specially
designed wall mount bracket included in the package to hang the Tavor 8-Sub on
the wall at the desired location.
To mount the Tavor 8-Sub onto the wall:
1. Run the wires from the receiver to the Tavor 8-Sub desired location.
2. Mark the desired location of the wall bracket. And prepare the wall for
mounting the bracket (installing four masonry anchors for the support
screws).
3. Screw the bracket in place:
Figure 8: Installing the Bracket
Tavor 8-Sub - Mounting the Tavor 8-Sub on the Wall
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4. Pass the wiring through the opening in the bracket.
5. Lift the Tavor 8-Sub and place the groove on the subwoofer over the
bracket.
Figure 9: Mounting Tavor 8-Sub over the Bracket
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Tavor 8-Sub - Technical Specifications
7 Technical Specifications
Audio and Power
DESCRIPTION:
Subwoofer speaker
FREQUENCY RESPONSE:
30Hz to 600Hz @ -10dB
45Hz to 350Hz @ ±3dB
WOOFER:
8” (203mm) aluminum with rubber surround
IMPEDANCE:
200Ω (high level input)
SENSITIVITY:
95dB SPL, 1W@1m
MAX SPL:
Continuous: 108dB
Peak: 114dB
POWER HANDLING:
50W RMS
140W continuous program
POWER SOURCE:
Selectable: 110−120V AC 60Hz or 220−240V AC 50Hz
CROSSOVER FREQUENCY:
65-150Hz
INPUT CONNECTORS:
High level balanced stereo audio on binding posts
LFE or Line level unbalanced stereo audio on RCA
connectors
CONTROLS:
Volume, crossover, phase, auto standby and selectable
power source
Shipping and Installation
MATERIALS:
Wooden Cabinet and Wooden Bracket; 50W dual voltage
amplifier
OPERATING TEMPERATURE:
-15° to +70°C (5° to 158°F)
STORAGE TEMPERATURE:
-30° to +55°C (-22° to 131°F)
HUMIDITY:
25% to 90%, RHL non-condensing
WEIGHT PER SINGLE SPEAKER:
9.9kg (21.8lbs) approx.
WEIGHT WITH MOUNTING KIT:
10.25kg (22.6lbs) approx.
SHIPPING WEIGHT (FOR PIECE):
12.45kg (27.4lbs) approx.
DIMENSIONS:
45cm x 40cm x 20.5cm (17.7” x 15.7” x 8.1”), W, D, H.
INCLUDED ACCESSORIES:
Power cable, 4 black rubber feet
COLORS:
White
Specifications are within a 10% tolerance and are subject to change without notice at www.kramerelectronics.com
For the latest information on our products and a list of Kramer distributors,
visit our Web site where updates to this user manual may be found.
We welcome your questions, comments, and feedback.
Web site: www.kramerelectronics.com
E-mail: info@kramerel.com
SAFETY WARNING
Disconnect the unit from the power
supply before opening and servicing
P/N:
2900-300397
Rev:
4
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