RBH Sound Speaker PC 10 User Guide

PC-10  
SUBWOOFER  
O w n e r s M a n u a l  
 
Care and Cleaning  
To maintain speaker appearance, we recommend an occasional application  
of furniture grade polish to the wood surface of the cabinet. To clean dust from  
the grille cloth, use a vacuum with a brush attachment.  
Features  
A powered subwoofer is a must-have component for any home theater or  
audio system. The performance of your subwoofer can greatly affect the  
overall performance of your system. Without the powered subwoofer, the  
deep bass on your music CDs and special effects on DVDs may not be heard  
and/or felt. Think of a subwoofer as a vital component that adds excitement to  
your theater or music experience. The powered subwoofer has its own source  
of amplification (as opposed to passive, non-amplified subwoofers which  
require an additional power amplifier). Subwoofers can add considerable low-  
frequency, deep bass performance to any home theater or audio system.  
At the heart of the RBH PC-10 powered subwoofer is a compressed cellulose  
composite cone driver. The driver material produces enhanced bass definition  
and accuracy. A powerful magnet, enhanced suspension and heavy duty  
voice coil give the driver elevated performance allowing high output capability  
and accurate dynamic reproduction.  
The PC-10 powered subwoofer incorporates a discrete class A/B analog  
power supply amplifier ensuring low distortion, high current output and proven  
reliability. Variable crossover, adjustable phase control and auto on/off are also  
used for convenience and easy integration with other speakers. Connectivity is  
made easy by allowing the subwoofer to be connected by either interconnect  
(processor/line level) or speaker wire (high level).  
Cabinets are constructed from medium density fiberboard because of its inert  
properties. The thickness of the front baffles also prevents excess acoustic  
radiation. Large oversized gold binding posts ensure a good electrical contact.  
Sophisticated computer modeling and measurement techniques are used  
extensively in the RBH subwoofer design process.  
Setup Suggestions  
Placement of the subwoofer will largely determine quality, quantity and  
extension of the bass frequencies within your listening room. Bass frequencies  
are reinforced by close room boundaries. Placing the subwoofer in a corner will  
make the subwoofer sound louder and boost the very lowest frequencies.  
 
Setup Suggestions (continued)  
Placing the subwoofer away from walls will provide the least reinforcement,  
making the bass sound subjectively thinner than if the woofer were closer to  
a wall. Good results can usually be obtained by placing a subwoofer along a  
wall 1-3 feet from a corner. Experiment with placement of the subwoofer and  
the sub-amplifier controls to achieve the proper bass balance.  
It is important the signal being sent to the subwoofer be a non-boosted  
or “flat” signal. To be sure of this, check the settings on your receiver or  
processor to determine any “bass boost”, “super bass” or “loudness” is set  
to Off. In most cases for home theater setting a receiver or processor will  
determine the crossover frequency through bass management settings. In this  
configuration connect the receiver or processor to the LFE Line Level Input.  
Your subwoofer can now reproduce the bass frequencies the way they were  
originally recorded. Use the subwoofer level control and the individual bass  
management control within the receiver or processor to adjust the subwoofers  
volume if necessary. Once set, the volume controls should not need to be  
altered as the subwoofers volume will coincide with the master volume control  
of your receiver or processor.  
 
Amplifier Controls and Setup  
1. Volume Control: The volume control should be at the  
minimum setting (all the way counter clockwise) before  
plugging the subwoofer into a 120V AC wall socket.  
2. Crossover Frequency Control: The variable  
crossover frequency control allows you to set the  
crossover point of the subwoofer anywhere from  
50-150 Hz. This control is only active with use  
of the left and right line level inputs (#5). If using  
these inputs experiment with setting the crossover  
frequency control at highest setting initially.  
Increasing the crossover frequency will allow more  
mid-bass output from the subwoofer. Decreasing  
the frequency will cut more mid-bass output from  
the subwoofer.  
Back View of PC-10 Subwoofer  
3. Phase Control: This control changes the phase  
of the subwoofer. Changing the phase will change  
the way the subwoofer and main speakers interact  
with each other at the crossover frequency. Varying  
the phase position may result in more or less mid-  
bass depending on the phasing between the main  
speakers and the subwoofer. Generally, the phase  
is left at the 0° position.  
4. LFE Line Level Input: Typically this will be the  
line level input used to connect to most receivers  
or processors. The LFE input will bypass the  
subwoofers crossover control, rendering it non-  
functioning. This input should be used when the  
input signal is coming from a receiver or processor  
where the bass management is controlled by the  
receiver or processor.  
5. L/R Line Level Input: If a full-range signal is being  
sent from the receiver or processor then these inputs should be used. In this  
configuration the crossover frequency (#2) is active.  
6. High Level Input: These binding post terminal connectors are for the amplifier/  
speaker level input from an amplifier or receiver. Usually, the LFE line level input  
(#4) will be used. Important! Use either the Line Input or the High Level Input.  
DO NOT use them both simultaneously.  
7. High Level/Speaker Output: This is a 100 Hz high pass crossover for your  
satellite/main speakers. The crossover limits the low frequencies (below 100 Hz)  
from going to your satellite/main speakers. You may use this crossover only when  
using the High Level Input terminals. Connect your main speakers (observing the  
proper polarity) to the terminals labeled “High Level Out”.  
 
Specifications  
Model:  
PC-10  
Frequency Response:  
Amplifier Power:  
Woofer:  
30Hz-150kHz ±3dB  
100 Watts  
10” Compressed Cellulose Composite Woofer  
Crossover Frequencies:  
Dimensions:  
50-150Hz  
13”H x 14½”W x 14½”D  
30 lbs.  
Weight:  
Troubleshooting  
Situation:  
Probable Cause:  
Solution:  
No sound from  
subwoofer(s)  
Amplifier is not connected  
to constant power outlet.  
Make certain the amplifier is  
plugged into an unswitchable  
A.C. power outlet.  
Amplifier is not receiving an Make certain there is an audio  
audio signal from receiver  
or processor  
signal from receiver or proces-  
sor and audio connections  
resemble those in the connec-  
tions section of this manual.  
Amplifier fuse might be  
blown.  
Replace fuse (if fuse is not  
readily accessible, consult your  
authorized RBH dealer).  
Performance is  
less than  
The + and - polarity of the  
subwoofer wire might be  
Check the entire system for  
proper polarity. Experiment  
expected  
reversed on the subwoofer. with the phase switch.  
Crossover frequency not  
adjusted correctly.  
Adjust crossover frequency  
by turning the crossover fre-  
quency control clockwise until  
desired sound is obtained.  
L/R line level input is con-  
nected instead of the LFE  
line level input..  
If bass management is enabled  
on receiver or processor make  
sure to use the LFE line level  
input. (See amplifier controls  
and setup on previous page.)  
 
Warranty  
Your RBH Sound PC-10 subwoofer is covered by a limited warranty against  
defects in materials and workmanship for a period of 5 (five) years on the  
woofer and cabinet, and 1 (one) year on the amplifier from the original date  
of purchase. This warranty is provided by the authorized RBH Sound dealer  
where the subwoofer was purchased. Warranty repair will be performed only  
when your purchase receipt is presented as proof of ownership and date of  
purchase. Defective parts will be repaired or replaced without charge by your  
dealer’s store or the location designated by your dealer that is authorized to  
service RBH products.  
Charges for unauthorized service and transportation cost are not reimbursable  
under this warranty. This warranty becomes void if the product has been  
damagedbyalteration,misuseorneglect.Thewarrantorassumesnoliabilityfor  
property damage or any other incidental or consequential damage whatsoever  
which may result from the failure of this product. Any and all warranties of  
merchantability and fitness implied by law are limited to the duration of this  
express warranty. Some states do not allow limitations on how long an implied  
warranty lasts, so the above limitations may not apply to you. Some states do  
not allow the exclusion or limitation of incidental or consequential damages,  
so the above limitation or exclusion may not apply to you.  
 
Redefining the Way You Experience Sound.TM  
382 Marshall Way, Layton, Utah • USA • 84041  
Toll Free: (800) 543-2205 • Fax: (801) 543-3300  
It is RBH Sound policy to continuously incorporate improvements into products; all specifications are subject to change without notice.  
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