NHT Speaker SW12 User Manual

Us er ’s M anual  
Model  
SW10 ll SW12  
P ower ed S ubwoof er  
 
Thank you for your purchase of the NHT  
SW10 ll or SW12 powered subwoofer.  
is to remember that low frequencies produce sounds with  
long wavelengths, which interact in complex ways with  
room boundaries, such a walls and corners, and other  
large objects as well.  
Like all NHT loudspeakers, the SW10 ll and SW12's  
development has been guided by the study of human  
hearing, it’s design rigorously tested, and its components  
optimized to deliver clean, clear musical sound.  
Placing the subwoofer near to a room boundary will tend  
to increase its apparent bass output, but may result in  
"boomy" or "muddy" sound. Conversely, placing it farther  
away from room boundaries will tend to decrease its  
apparent bass output, but may result in improved  
articulation and clarity.  
Since the quality of your speakers is one of the most  
important factors in maximizing the sound you'll get from  
your music and home theater system, we're sure that  
you'll find your purchase of the SW10 ll and SW12 a  
good investment, and invite your comments.  
When possible, place the subwoofer in the same  
horizontal plane and along the same wall as the main  
speakers.  
If you find your experience with the SW10 ll and SW12  
as satisfying as we believe you will, and wish to enjoy its  
high quality sound through your entire system, you'll find  
information about other sonically matched NHT Super  
Series loudspeakers on the back of this manual.  
And since small changes in subwoofer position can have  
a significant effect on sound, experimenting with the  
effects of different placements in your own listening/view-  
ing room is the key to finding the sound you like best.  
Background  
SW10 ll and SW12 Features & Controls  
The NHT SW10 ll and SW12 Powered Subwoofer is a  
compact, versatile and powerful amplified subwoofer  
designed to provide low frequency reinforcement for high  
performance audio and home theater systems.  
Volume: This control allows you to adjust the gain of the  
Subwoofer relative to the rest of your system. Many lis-  
teners make the mistake of setting subwoofers too loud,  
which can cause excess bloat and loss of detail and  
musicality. A properly calibrated subwoofer blends in with  
the speakers and does not call attention to itself. To  
properly set volume:  
The SW10 ll and SW12 features:  
• line-level and speaker-level inputs, for connection with  
all types of receivers or other audio components  
• Turn down the volume control on the SW10 ll or SW12  
to its lowest position (counter-clockwise).  
• independent gain, phase and low pass filter controls  
• Turn on your audio system, including the SW10 ll or  
SW12. Play some music you are familiar with and set  
your receiver/preamplifier volume to a comfortable lis-  
tening level.  
• boundary control for adjusting system sound for various  
room placement  
Please take a few minutes to read through this owner's  
manual before setting up your speakers; this information  
will help you get the most out of them. Also, please keep  
the SW10 ll or Sw12’s packaging to use in case you  
move or transport them.  
• Slowly increase the volume of the SW10 ll or SW12, lis-  
tening for proper frequency balance. When balanced,  
you will hear improved bass extension, but not be aware  
that it is coming from the subwoofer.  
If you have questions at any time during setup or use,  
feel free to call your NHT dealer or our Toll-Free  
Customer Hotline at 1-800-NHT-9993.  
From this point on, the volume control on your  
receiver/preamplifier will control the overall volume of  
your system, including the subwoofer.  
The Boundary EQ: This is a feature unique to NHT  
Evolution products. Reflective boundaries (such as  
walls) reinforce a speaker’s bass output (3dB for two  
walls, 6dB for a corner) if the subwoofer is placed near  
them. Conversely, placing a subwoofer out in the room  
results in a relative decrease in bass output. Boundary  
reinforcement may lead to low frequency response that  
Placement  
Note: To prevent the SW10 ll and SW12 subwoofer  
amplifier from overheating, always be sure to provide  
adequate space for proper ventilation. Do not place the  
subwoofer directly against the wall or any other surface.  
The key to placing your subwoofer for optimal enjoyment  
 
is uneven. Some frequencies will sound exaggerated  
relative to others, or the subwoofer will sound thin and  
lack impact. The Boundary EQ control allows you to  
compensate for the effects of room boundaries on the  
frequency response  
Two tips on using the Low Pass Filter:  
As a starting point, set Low Pass Filter to the 1 o’clock  
position. This will result in an 80Hz low pass. As the set-  
ting is typical for most Dolby Digital / DTS applications.  
Note: The LFE input bypasses the adjustable 12dB Low  
Pass Filter.  
of the subwoofer. Adjusting the control enables you to  
achieve smooth low frequency output from the sub-  
woofer regardless of its location in your room.  
See the Fine-Tuning section for further adjustment  
guidelines.  
The following diagrams shown in Fig. 1 show the corre-  
lation between subwoofer placement and Boundary EQ.  
These diagrams are guidelines only. Your room  
acoustics and personal tastes will ultimately dictate the  
final setting.  
SUBWOOFER PHASE: This switch sets the phase of  
the subwoofer at either the 0° position (normal phase) or  
the 180° position (reverse phase) to achieve the  
smoothest possible bass response in your system.  
This phase-reversing option is important because if bass  
frequencies come from both the subwoofer and the main  
speakers, peaks and dips in the frequency response can  
occur at the listening position. In these cases, reversing  
the subwoofer phase can improve blending and balance.  
Fig. 1  
Boundary  
+3dB  
Half  
0
Space  
-3dB  
To properly set the Subwoofer Phase:  
• Play familiar music, reversing phase settings. And listen  
from your usual position.  
• Avoid evaluating while standing above the subwoofer or  
amplifier; sound at the listening position will be  
significantly different.  
Boundary  
Quarter/  
Half  
Space  
+3dB  
0
-3dB  
• The correct setting is the one in which the bass is the  
loudest at the listening position.  
POWER MODE: This feature automatically switches  
your SW10 ll or SW12 into minimum-power mode (ie,  
sleep) whenever no signal is present for 20 minutes.  
When a signal is received, it immediately turns on again.  
As AUTOMode is automatic, it requires no adjustment,  
nor is there a need to turn the SW10 ll or SW12 on and  
off every time it is used. When in ON Mode, the sub-  
woofer is always on.  
Boundary  
Half/  
Whole  
Space  
+3dB  
0
-3dB  
LOW PASS FILTER: This control determines the upper-  
limit frequency the subwoofer will reproduce. For  
example, setting the filter at 100Hz will cause the  
subwoofer to reproduce only frequencies below 100Hz.  
The Low Pass Filter is continuously variable between  
40Hz (low bass) and 180Hz (upper bass), to  
accommodate different speakers.  
 
9
8
7
4
Connecting The SW10II OR SW12  
3
5
Line  
Input  
LFE  
Low Pass  
Filter  
Volume  
In  
L
Caution: Before connecting the SW10II OR SW12 to  
your audio system, it is important to unplug or turn off  
all AC power connections to connected components  
such as receivers, amplifiers, preamplifiers, and proces-  
sors. Do not plug in or connect the SW10II OR SW12  
subwoofer to AC power until all connections have been  
made.  
Out  
R
40Hz  
180Hz  
Min  
Max  
Power  
Mode  
Hi Level Input  
Phase Boundary  
+3dB  
On  
180  
0
0
Auto  
-3dB  
+
L
-
-
R
+
6
1
2
Green  
-
On  
Standby  
Protect  
Amber  
-
Red  
On  
-
10  
11  
Power  
Off  
Powered  
Subwoofer  
Integrating the SW10II or SW12 into your surround sys-  
tem is simple and straightforward when using this con-  
nection method. Your AV Receiver will control all  
crossover functions and the SW10II or SW12 will control  
Subwoofer gain, phase and boundary equalization.  
T3.0AL 250V  
For 115  
V
Input Voltage  
115  
T2.0AL 250V  
For 230V  
115V 60Hz  
230V 50Hz~  
300W  
/
12  
CAUTION: FOR CONTINUED PROTECTION AGAINST  
FIRE, REPLACE ONLY WITH SAME TYPE 250V FUSE  
WARNING:  
TO REDUCE THE RISK OF FIRE OR ELECTRIC  
SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.  
CONFORMS TO  
ULSTD.6500  
CAUTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
CERTIFIED TO  
CAN/CSA  
STD.E60065  
2001228  
WARNING: SHOCK HAZARD-DO NOT OPEN.  
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR.  
Connect the Subwoofer/LFE Output on your AV Receiver  
13  
to the LFE IN on the back of the SW10II or SW12. (Fig.  
2)  
Back of Subwoofer (refer to diagram above)  
Main Speakers  
Reciever  
(1) Power Mode - Leaves Subwoofer in permanantly on  
(ON), or puts the subwoofer in automatic standby mode  
(AUTO).  
SPEAKER OUTPUTS  
LFE  
/
Sub  
L
R
+
(2) Power Indicator - The light is green when the sub-  
woofer is on. The light is amber when the subwoofer is in  
stand-by mode. The light is red when the subwoofer is in  
protection.  
SW10 / SW12  
Back of Subwoofer  
(3) Volume Control - Adjusts the loudness of the sub-  
woofer independently of the main speakers.  
Line  
Input  
LFE  
Low Pass  
Filter  
Volume  
In  
L
(4) Low-Pass Filter - Continuously variable low-pass  
crossover control.  
Out  
R
40Hz  
180Hz  
Min  
Max  
Power  
Mode  
Hi Level Input  
Phase Boundary  
+3dB  
On  
180  
0
0
Auto  
-3dB  
Fig. 2  
+
L
-
-
R
+
(5) Boundary Switch - Selects response mode of sub-  
woofer, depending on placement.  
(6) Subwoofer Phase Selector - 2-position selectable  
phase control for subwoofer. (0 - 180)  
In the event your receiver or pre-amp does not have a  
LFE or Subwoofer output the SW10II/SW12 has two  
additional connection methods:  
(7) Line Input - Low level RCA input jacks for L/R signals  
(8) LFE In/Out - Low level RCA input jack for LFE or sub-  
woofer signal. Out is an unbuffered pass through used  
for multiple subwoofers.  
1) Line Level  
Use if:  
(9) Hi Level Input - Speaker level input connector.  
(10) Power Switch - Turns the unit on and off  
You have an amp or receiver with Pre-Out jacks but no  
LFE/Subwoofer jacks.  
(11) Fuse Holder - location of the user servicable fuse  
To connect for a Line Level signal (Fig. 3), keep your  
main speakers connected as usual, but use RCA line-  
level cables to connect as follows:  
(12) Power Inlet - For universal AC line input connection  
(13) Input Voltage Switch - Selects 115 VAC or 230  
VAC mains voltage.  
 
Preamps with Line Out jacks: connect one pair of Line  
Out cables to your main amp to power your main L & R  
speakers, and a second pair to the SW10II OR SW12  
LINE LEVEL INPUT. If your preamp has only one pair of  
Line Out jacks, you can use a pair of "Y" connector  
cords, available through your NHT dealer.  
component's speaker output terminals to the L & R  
speakers, and a second pair from the same output ter-  
minals to the SW10II OR SW12's High-Level input. The  
SW10II OR SW12's input does not present a significant  
load to the receiver, and will not compromise its output to  
the L & R speakers. If you find that your receiver will not  
accommodate more than one cable per output terminal,  
check with your NHT dealer for alternative methods of  
connection.  
Main Speakers  
Reciever  
SPEAKER OUTPUTS  
Pre Out  
L
R
L
+
R
Main Speakers  
Reciever  
SPEAKER OUTPUT  
LEFT  
SPEAKER OUTPUT  
RIGHT  
+
+
SW10 / SW12  
Back of Subwoofer  
Line  
Input  
LFE  
Low Pass  
Filter  
Volume  
In  
L
SW10 / SW12  
Back of Subwoofer  
Out  
R
40Hz  
180Hz  
Min  
Max  
Power  
Mode  
Hi Level Input  
Phase Boundary  
+3dB  
On  
180  
0
0
Auto  
-3dB  
Fig. 3  
Line  
Input  
+
L
-
-
R
+
LFE  
Low Pass  
Filter  
Volume  
In  
L
Out  
R
40Hz  
180Hz  
Min  
Max  
Power  
Mode  
Hi Level Input  
Phase Boundary  
+3dB  
On  
180  
0
Amps and receivers with Pre-Out jacks: connect the  
SW10II OR SW12 from the Pre-Out into the SW10II OR  
SW12's Line Input.  
0
Auto  
-3dB  
Fig. 4  
+
L
-
-
R
+
2) Hi-Level  
With all signal connections complete, it is now time to  
apply AC power. Plug the power chord into the power  
inlet in the back of the subwoofer, plug the other end into  
into the wall outlet and switch the subwoofers power to  
the ON position.  
Use if:  
Your receiver has no Pre Out or Subwoofer/LFE Out  
jacks  
To connect for a High-Level signal (Fig. 4), use two addi-  
tional pairs of speaker cables, and connect as follows:  
For amps and receivers with separate A and B speak-  
er outputs, connect one pair of speaker cables from your  
receiver's Speaker A outputs to your main L & R speak-  
ers, and a second pair from your receiver's Speaker B  
outputs to the SW10II OR SW12's High-Level Input. Use  
this method only if both A & B speaker outputs can oper-  
ate simultaneously.  
For amps and receivers with only one set of speaker  
output terminals, simply feed the same signal, in parallel,  
to both your main L & R speakers and the SW10II OR  
SW12. Connect one pair of speaker cables from your  
 
The frequency chart below lists some terms commonly  
used to describe different bands of the frequency  
spectrum. Listen to your system and make adjustments  
to achieve a seamless blend between your main  
speakers and the SW10 ll or SW12. Four common prob-  
lems are outlined below. Follow the flow chart to correct  
these. See the glossary for any terms you are unfamiliar  
with.  
Fine Tuning the Subwoofer  
The key to good subwoofer / speaker integration is  
repeated listening, followed by making small re-adjust-  
ments of the subwoofer controls. The most important  
bass tuning functions you will control are the LOW-PASS  
FILTER, followed by the VOLUME CONTROL settings  
and then PHASE SELECTOR.  
Frequency Chart  
Low Bass Mid Bass Upper Bass Lower Mid  
Mid  
Upper Mid  
High  
Below 50Hz  
50Hz-100Hz  
100Hz-180Hz  
180Hz-300Hz  
300Hz-700Hz  
700Hz-3K  
3K and above  
Fine Tuning Flow Chart  
"Boomy"  
Too Much  
Mid / Upper  
Bass  
Lacks  
Mid / Upper Bass:  
Lean But With  
Weight  
Lacks  
Low  
Bass  
Excessive  
Low  
Bass  
Weight  
Weight  
Decrease  
Boundary  
EQ  
Adjust  
Subwoofer  
Phase  
Adjust  
Subwoofer  
Phase  
Adjust  
Subwoofer  
Phase  
0-90  
(Continuously  
Add)  
0-90  
(Continuously  
Add)  
Switch  
0-180  
Move  
Subwoofer  
Farther  
From Wall  
Increase  
Boundary  
EQ  
Lower  
Low Pass  
X-Over  
If this makes  
it worse,  
try  
If the sound  
improves  
Raise  
Low-Pass  
Setting  
Listen  
Frequency  
Move  
Subwoofer  
Closer to  
Wall  
Lower  
Subwoofer  
Volume  
Adjust  
Subwoofer  
Volume  
Adjust  
Subwoofer  
Volume  
Listen  
Adjust  
Subwoofer  
Phase  
Listen  
Listen  
Listen  
 
appropriate type.  
Operation  
• reinstall the fuse holder  
We recommend that the SW10 ll or SW12 power be left  
on, which will allow the built-in Auto Mode feature to dis-  
able the subwoofer when not in use.  
Always replace the fuse with one of the exact same  
specifications.  
Every speaker, has limits, and it's important to listen for  
them. Speaker damage most often results not from brief  
loud musical peaks, but from sustained high volume lev-  
SW10 ll:  
For systems operating at 115 volts, use only a 5x20 mm,  
T3A, 250-volt slow-blow fuse.  
els in some or all frequencies. For this  
reason,  
extreme volume settings and excessive bass, treble or  
equalizer boosts are not recommended.  
For systems operating at 230 volts, use only a 5x20 mm,  
T2.0A, 250-volt slow-blow fuse.  
If you hear unusual distortion or breakup, or notice heat  
coming from the woofer, decrease volume immediately,  
neutralize any excess bass, treble or equalizer boosts,  
and avoid setting any controls to similar extremes again.  
SW12:  
For systems operating at 115 volts, use only a 5x20 mm,  
T5A, 250-volt slow-blow fuse.  
Maintenance  
For systems operating at 230 volts, use only a 5x20 mm,  
T2.5A, 250-volt slow-blow fuse.  
Your SW10 ll and SW12 is designed for years of use with  
no or minimal maintenance, as long as you avoid expos-  
ing it to direct sunlight, high temperatures, or moisture.  
Clean cabinets, when necessary, using a damp cloth or  
a mild, non-abrasive cleaner; to clean grilles, remove  
from speaker and use a soft brush or a vacuum on its  
lowest setting. Do not attempt to clean the actual driv-  
er.  
Troubleshooting  
If the SW10 ll or SW12 fails to operate at all when the  
Power Switch is turned on, thoroughly check the power  
cord, input and output connections  
If the SW10 ll or SW12 turns on but the LED indicator  
fails to illuminate, mis-wiring or a power surge may have  
caused the protection fuse to blow. Replace it with one of  
correct type and value.  
9.8 Changing the Line Voltage Setting  
The SW10 ll and SW12 were designed to operate on two  
line voltage settings, 115VAC and 230VAC. In the event  
that it is necessary to change the line voltage setting,  
begin by turning the power switch to the off position.  
Remove all the connections from the amplifier, including  
the detachable power cord. Using a flat blade screw-  
driver, slide the switch to the correct position. Use the  
115VAC position for 110 to 120 VAC, and the 230VAC  
position for 220 to 240 VAC. Next you will likely need a  
power cord that fits the AC receptacle and you will need  
to replace the fuse (see "Changing the Fuse" below)  
If the SW10 ll or SW12 turns on but its status LED stays  
red, the unit is gone into protect mode, which could be  
caused by incorrect wiring, short circuits, or excessive  
volume. Turn off the Power Switch on the subwoofer for  
two or more seconds to reset, and double check all  
speaker cables to be sure that no small metal strands are  
shorting the terminals.  
If these steps don't restore the SW10 ll or SW12 to oper-  
ation, contact your local Authorized NHT Dealer or NHT  
for assistance.  
Changing the Fuse  
Satisfaction  
The SW10 ll and SW12 amplifier's fuse is user-servicea-  
ble.  
Your satisfaction with your new NHT SW10 ll or SW12  
Subwoofer is important to us. Please note the matched  
products and accessories we provide for them, and your  
warranty, printed on the back of this manual. If you have  
any questions regarding your speakers' use, feel free to  
call NHT at 1-800-NHT-9993. Enjoy your listening and  
viewing!  
To replace it:  
• turn the power OFF  
• unplug the power cord  
• remove the fuse holder cover (above to the power inlet)  
with a flat blade screwdriver  
• remove the fuse from the holder and replace it with the  
 
the back of a receiver, integrated amplifier or power  
amplifier.  
Glossary  
Active: Uses electrical power.  
Midrange: The frequency span in the middle of the audio  
range, roughly 180Hz - 3000Hz. Also used to describe  
the driver that reproduces these frequencies.  
Ohm: A unit of electrical resistance. That which opposes  
an electric current in a conductor. In audio, a measure of  
the load presented by a device to an electrical source.  
Out-of-Phase: The polarity of an audio signal when  
connected as follows: (+) to (-) and (-) to (+).  
Passive: Uses no electrical power.  
Amplifier: An electronic device that increases the cur-  
rent and/or voltage of a signal, providing power to the  
loudspeakers (i.e. power amplifier, integrated amplifier,  
receiver).  
Bass: The range of audio frequencies below 180Hz,  
characterized by low pitch.  
Crossover: An electronic circuit that divides an audio  
signal into different frequency ranges.  
Distortion: Any deviation from the original signal.  
Driver: The moving part of a loudspeaker, which radiates  
sound energy.  
Phase: An expression of the relative polarities of two sig-  
nals.  
Power Handling: The ability of a loudspeaker to operate  
without large increases in distortion when given varying  
amounts of input power.  
Dynamics: Variations in loudness of sound.  
Frequency: A rate of vibration, which corresponds to  
musical pitch, expressed in Hertz (Hz).  
Preamplifier: An electronic device that selects sources  
and passes line-level signals to an amplifier.  
Pre-Out: A preamp line-level RCA output on the back of  
a receiver, integrated amplifier or preamplifier.  
Receiver: A preamplifier, amplifier and tuner built into  
one chassis.  
Full Range: A signal encompassing the entire audible  
frequency spectrum.  
Hertz (Hz): A unit equal to one cycle per second, used to  
measure the frequency of a signal or sound.  
High-Pass Filter: A filter that passes only high frequen-  
cies above a lower limit.  
Satellite: Front L & R speakers when used with a sub-  
woofer. Also referred to as "main speakers".  
Sensitivity: A ratio of voltage across the speaker load to  
the acoustic power output, measured in decibels.  
Sub Out: An line level output for connection to a sub-  
woofer or subwoofer signal processor.  
Impedance: A measure of the total opposition to current  
flow in an alternating current circuit, measured in ohms.  
In Phase: The polarity of an audio signal when connect-  
ed as follows: (+) to (+) and (-) to (-).  
Integrated Amplifier: A preamplifier and amplifier built  
into one chassis.  
Subwoofer: A driver designed to operate over the low  
bass portion of the audio range. Also refers to a system  
consisting of a woofer and its enclosure, which are phys-  
ically separate from the upper range loudspeakers.  
Surround Speakers: Speakers located in the side or  
rear for surround channel effects.  
Interconnect Cable: A length of shielded wire with plugs  
at both ends for feeding signals from one electronic  
device to another.  
L.F.E.: "Low Frequency Effects"; The .1 channel of infor-  
mation recorded on most multichannel digital sound for-  
mats.  
Treble: The upper part of the frequency spectrum, con-  
sisting of frequencies above about 3000Hz.  
Tweeter: A small driver designed to reproduce high fre-  
quencies.  
Line-Level Connection: Low level RCA/phono or XLR  
type connection.  
Load: A term used to describe the impedance that a  
speaker presents to an amplifier.  
Watt: A measure of electrical power, combining the volt-  
age with the electrical current required to drive the loud-  
speaker.  
Low-Pass Filter: A filter that passes only low frequen-  
cies below a higher limit.  
Main Speakers: Front L & R channel speakers, some-  
times referred to as satellites.  
Weight: Low frequencies below 50Hz.  
Woofer: A driver designed to operate over the bass por-  
tion of the audio range.  
Main-In: A line-level RCA/XLR power amplifier input on  
 
S p e c i f i c a t i o n s  
All Super Series products are sonically matched for seamless integration into multichannel systems.  
Super Series  
SB1  
SB2  
SB3  
ST4  
SC1  
SW10  
SW12  
SC2  
Vented /  
Powered - 150 watts  
Class G Amplifier  
Vented /  
Powered - 250 watts  
Class G Amplifier  
System Type  
2-Way Acoustic  
Suspension  
2-Way Acoustic  
Suspension  
2-Way Acoustic  
Suspension  
3-Way Acoustic  
Suspension  
2-Way Acoustic  
Suspension  
2-Way Acoustic  
Suspension  
Driver Complement  
Tweeter-  
1” fluid cooled aluminum dome tweeter with neodymium magnet structure  
Woofer-  
5.25”  
Polypropylene  
6.5”  
Polypropylene  
6.5”  
Polypropylene  
6.5” and 8”  
Polypropylene  
(8” Not Video Shielded)  
(2) 4.5”  
Polypropylene  
10”  
Aluminum  
(Not Video Shielded)  
12”  
Aluminum  
(Not Video Shielded)  
(2) 5.25”  
Polypropylene  
Video Shielded Unless Noted  
Response  
68Hz - 22kHz  
+/- 3dB  
51Hz - 22kHz  
+/- 3dB  
39Hz - 22kHz  
+/- 3dB  
31Hz - 22kHz  
+/- 3dB  
78Hz - 22kHz  
+/- 3dB  
31Hz - 180Hz  
+/- 3dB  
73Hz - 22kHz  
+/- 3dB  
27Hz - 180Hz  
+/- 3dB  
Sensitivity  
Impedance  
86dB / 2.83v  
86dB / 2.83v  
86dB / 2.83v  
86dB / 2.83v  
86dB / 2.83v  
87dB / 2.83v  
8 ohm nominal  
8 ohm nominal  
8 ohm nominal  
8 ohm nominal  
8 ohm nominal  
8 ohm nominal  
Recommended  
Amplifier Power  
Minimum 15 watts  
Maximum 175 watts  
Minimum 15 watts  
Maximum 200 watts  
Minimum 15 watts  
Maximum 150 watts  
Minimum 15 watts  
Maximum 125 watts  
Minimum 15 watts  
Maximum 150 watts  
Minimum 15 watts  
Maximum 175 watts  
Weight  
8 lbs.  
13 lbs.  
16 lbs.  
47.5 lbs.  
11 lbs.  
39.5 lbs.  
47.5 lbs.  
22 lbs.  
Dimensions  
8.75 x 7.5 x 11.85  
10 x 8 x 13  
12 x 8 x 38  
6.63 x 16.54 x 5.63  
14 x 12 x 18  
6.75 x 6.25 x 10.25  
16 x 14 x 20  
8.5 x 19 x 6.5  
Depth” x Width” x Height”  
Finish  
White or Black  
High Gloss Piano  
Finish  
White or Black  
High Gloss Piano  
Finish  
Black  
High Gloss Piano  
Finish  
Black  
High Gloss Piano  
Finish  
Black  
High Gloss Piano  
Finish  
Black  
High Gloss Piano  
Finish  
Black  
High Gloss Piano  
Finish  
Black  
High Gloss Piano  
Finish  
Limited Warranty  
Valid Only in the U.S.A.  
Warranty Period  
For a period of 5 years for parts and 5 years for labor (1 year parts and 90 days labor for electronics) from the date this product is first purchased from an author-  
ized NHT dealer, Now Hear This (NHT) warrants that if it fails to function properly due to a manufacturing defect, despite its being installed and operated accord-  
ing to these instructions and used under normal conditions, it will be either replaced or repaired with new or rebuilt parts (both at NHT's option) with a unit of  
comparable value without charge to you.  
What's Not Covered  
Altered, defaced or removed serial numbers void this warranty.  
This warranty does not cover any product used in trade, business, industrial or commercial applications.  
This warranty also does not cover the cabinet or appearance factors, or costs, defects or damage resulting from misuse, abuse, accident, improper mainte-  
nance, alterations or modifications not authorized in writing by NHT, or parts or labor from any source other than an authorized NHT service location.  
Damage due to power exposure in excess of the speaker's published power ratings; ie, overpowering, lightning or power surges, are also not covered.  
Your Rights  
This warranty gives you specific legal rights, and you may have other rights which vary from state to state.  
NHT limits this warranty to the purchase price of the product, excludes incidental or consequential damages, and limits its obligations under any implied war-  
ranties under state laws to a period not exceeding their warranty periods. As some states do not allow the above limitations, however, they may not apply to  
you.  
To Obtain Service  
To find the name and address of the nearest authorized NHT service location, call or write:  
For your future convenience, please keep this warranty with your sales receipt, and record date and place of purchase for further reference.  
 

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