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Unpacking and Inspection 

The Red Mountain Subwoofers are packaged extremely well to make sure no damage 
occurs during shipping.   Carefully open the box and remove the speaker.  Inspect it 
immediately for any kind of damage.  The speaker should have left our warehouse in 
perfect condition so any damage that has occurred probably happened in transit from 
our warehouse to your address.  If for some reason damage has occurred, please 
contact your Dealer or TruAudio immediately.   We recommend that you retain the 
packaging in case a need arises for you to transport your loudspeakers.    
 
The RM-12Sub and RM-10Sub besides the actual subwoofer cabinet and grill, should 
also come with: this instruction manual, a warranty card, and a power cord.  Four, 
heavy-duty plastic feet come attached to the bottom of the cabinet.   
 

Caution; for NO reason should you open this subwoofer.   

This will void the warranty! 

To reduce the risk of electrical shock and fire, do not remove the amplifier panel from the back 
of the cabinet or do not remove the subwoofer from the front of the cabinet.  There are NO 
fuses or serviceable parts.   
All service to this product MUST be done by a TruAudio Authorized repair center.   
 
Before installing the subwoofer, please read the following instructions:   

 

Always turn off the power of your receiver/preamp and the powered subwoofer. 

 

When turning your amplifier/receiver back on, make sure your volume is turned all 
the way down.   

 

Never expose this subwoofer to excessive cold, heat, humidity or direct sunlight. 

 

This device should never be used in, on or near water due to risk of fatal shock.   

 

DO NOT attempt to open or dismantle this subwoofer. 

 

These models should always have plenty of Air flow to reduce the chance of over 
heating.   

 

Subwoofer Placement 

This subwoofer is engineered, designed and built to reproduce low frequencies at and below 
150Hz.  Frequencies at this level are basically omni-directional.  This makes it easy to find a 
good place for the sub; however, there are also several location options that can either give 
more or less bass.  When placed near a wall, you will get louder, deeper bass.  Placing the 
subwoofer in a corner will produce a high volume of bass output, while near only one wall will 
provide less bass.  Placement away from any wall may not produce enough bass.  Because even 
a slight change of how the unit sits will alter the bass output, we suggest trying your subwoofer 
in different locations.  This will allows you to hear the difference of bass output and decide 
what is best for that particular room and the listener’s preference.   
 
Our suggestion is to place the subwoofer close to the pair of speakers it will be matched with.  
For example, if the subwoofer is to reproduce bass from the front two channels, then it should 
be located near the front two speakers.  If it’s to reproduce bass from the rear effect channels, 
then the sub should be located near the rear speakers.   
 
Because the Red mountain series of subwoofers are ported from the front, they can be built-in 
to a wall, into cabinetry etc………NOTE; even though they are ported from the front, the amp 
panel is still located on the back of the subwoofer cabinet.  They need to have proper ventilation 
for the amp to “breath”.  If the subwoofer will be “built-in”, make sure there is enough space in 

Summary of Contents for RM-15Sub

Page 1: ...on in either 5 1 6 1 7 1 and even 9 1 Model RM 12Sub RM 10Sub These powered subwoofers in this series leaves nothing to be desired After over 1 year of engineering and testing the RM 12Sub and RM 10Sub are the last link needed to complete the TruAudio theater package These subwoofers use a black anodized Aluminum woofer and a slot port design All those fancy words really mean a specially designed ...

Page 2: ...be used in on or near water due to risk of fatal shock DO NOT attempt to open or dismantle this subwoofer These models should always have plenty of Air flow to reduce the chance of over heating Subwoofer Placement This subwoofer is engineered designed and built to reproduce low frequencies at and below 150Hz Frequencies at this level are basically omni directional This makes it easy to find a good...

Page 3: ...ted noise or hum If the cable is being installed inside the wall cavity make sure the subwoofer cable is kept away from electrical wire Speaker in speaker cable input connections To connect your subwoofer parallel with your two main speakers main R L you will use these connection on the back the subwoofer amp panel Locate the Main Speakers connections on the back of the receiver Connect a good qua...

Page 4: ...r resulting in maximum system bass output Subwoofer Amplifier Controls After the subwoofer is connected to the receiver preamp and all the setting are complete now its time to adjust the subwoofer amplifier controls This series of subwoofers provide a wide range of adjustments to optimize its performance in any listening area and with any combination of speaker systems These adjustments are locate...

Page 5: ...etting and then listening to the same music in the 180 setting Then set the switch to the setting that reproduced the most bass Furniture wall coverings subwoofer location all can affect this so if any of these things get changed or added you will need to go through this process again This setting is also very important to set correctly if you are using two subwoofers in one system In the case of ...

Page 6: ...h level 2 V 100 Hz Inputs Line level RCA speaker level w banana plugs Outputs Line level RCA speaker level w banana plugs Controls Phase control 0 or 180 Low frequency adjustment Crossover bypass Ampifier Protection Output protection circuit with relay Cabinet Real wood veneer BUILT IN ST GEORGE UTAH Cabinet dimensions 14 5 8 High including feet 14 1 8 Wide 15 1 4 Deep including grill and amp Gril...

Page 7: ... 15 black anodized aluminum cone cast basket long excursion 2 5 2 layer voice coil Power class D ICE 600 watt into 4 ohms with internal amplifier Frequency Range Lowpass 20 220 Hz 3 dB Frequency Range LFE 20 230 Hz 3 dB Input Sensitivity Low level 150 mV 100 Hz Input Sensitivity High level 3 5 V 100 Hz Inputs Line level RCA speaker level w banana plugs LFE line level RCA Outputs Line level RCA spe...

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