RBH Sound Portable Speaker MC SERIES User Guide

MC SERIES  
O w n e r s M a n u a l  
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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  
At the heart of the MC Series loudspeakers is a proprietary aluminum cone  
bass/midrange driver (speaker). The unique aluminum cone material combines  
stiffness, low mass and self damping properties in a manner which allows  
virtually uncolored presentation of program material. A powerful magnet,  
extended voice coil and bumped back plate give the bass/midrange driver  
high excursion capability, which ensures accurate dynamic reproduction. The  
drivers are shielded by using a steel cup and an additional magnet to cancel  
any stray magnetic field which may cause interference with video equipment  
such as tube televisions.  
For high frequencies, a proprietary aluminum dome tweeter was developed.  
This tweeter uses Ferro Fluid® liquid cooling, allowing the tweeter to handle  
greater power while retaining detail and accuracy.  
Steep acoustic slope crossovers are used to integrate drivers. The use of steep  
crossover slopes allows high power handling, minimizes driver interaction  
anomalies, and maximizes the clarity with which each driver is able to produce  
its respective frequency band. A polyswitch, or current limiting device, is used  
in the crossover to prevent damage to the tweeter if overdriven.  
Cabinets are constructed of ¾-inch medium density fiberboard due to its inert  
properties, thereby preventing sound coloration due to cabinet diffraction. 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 loudspeaker design process.  
Attaching Speaker Wires  
When attaching speaker wire to the terminals, it may become necessary to  
remove the black and red plastic protective inserts. To do this, loosen the  
binder nut from the post by twisting counter-clockwise until the nut is removed  
completely from the post. Remove the plastic inserts by pulling straight out.  
Replace the nut on the post by twisting clockwise. A hole is then provided  
in the top of the post to allow for banana type jacks to slide into. The nut is  
tightened until the wire is secure. Remember to strip the insulation from the  
wire prior to inserting the wire into the post. Repeat for the other speaker  
wire(s) as necessary. (See illustration on following page).  
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Attaching Speaker Wires (continued)  
Room Setup Suggestions  
In order to extract the best possible sound from your speaker, it is important  
to determine where the speakers will sound best in your listening room. Room  
reflections from the floor, ceiling and side walls influence the balance, imaging  
and overall sonic quality at the listening position. Experiment with speaker  
placement to determine which location offers the best overall sound. As a  
general guide, use the room layout diagram on the next page and the following  
descriptions when setting up a home theater system. Some speakers shown  
in the diagram may not be applicable to your individual system.  
Front Main Speakers  
As a starting point, place your front left and right speakers at least 7 feet apart from  
each other. The distance from the listening position to each speaker should be close to  
the distance that separates the two main speakers. Angling the speakers slightly inward  
towards the listening position may give a more spacious and realistic sound stage.  
Center Channel Speaker  
The center channel speaker should be placed in the center between both left and  
right main speakers. Often this positioning dictates placing the speaker either directly  
above or below a television monitor. Since all MC Series bookshelf speakers are video  
shielded, the center speaker may be placed close to a television without cause for  
concern. If using an MC-414C or MC-616C, the speaker may be in a horizontal (lying  
down) or vertical position.  
Rear Surround Speakers  
The surround speakers should be placed either above or behind the listening position.  
If using the MC-44C, it should be placed slightly above and directly to the sides of the listen-  
ing position. The listening position should be centered between the surround speakers.  
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Room Setup Suggestions  
For best performance with the MC-4C and MC6C models, you may want to experiment  
with angling the surround speakers either towards or away from the listening position.  
Subwoofer  
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. 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 subwoofer placement  
and the sub-amplifier controls to achieve the proper bass balance.  
NOTE: There are several different surround formats available. Dolby Pro-Logic, Pro-Logic II, Dolby  
Digital and DTS generally have a 5 speaker plus subwoofer requirement. Dolby Digital EX and DTS  
ES add a center rear speaker. Please consult your audio/video professional to determine which  
system is best for you and how many speakers you will require.  
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Specifications  
Model:  
MC-4C  
85Hz-20kHz1  
84dB2  
MC-414C  
85Hz-20kHz1  
88dB2  
MC-44C  
100Hz-20kHz1  
88dB2  
Frequency Response:  
Sensitivity:  
Recommended Power: 50-150 Watts  
50-150 Watts  
50-150 Watts  
Woofer:  
4” Aluminum Cone  
Two 4” Aluminum Cone Two 4” Aluminum Cone  
Mid-range Woofer  
Mid-range Woofers  
Mid-range Woofers  
Tweeter:  
Impedance:  
1” Aluminum Dome  
Tweeter  
1” Aluminum Dome  
Tweeter  
Two 1” Aluminum  
Dome Tweeters  
8 Ohms  
6 Ohms  
3000 Hz  
6 Ohms  
3000 Hz  
Crossover Frequencies: 3000 Hz  
Dimensions:  
Finish:  
8½”H X 5.¼”W X 7¼”D 5¼”H X 14½”W X 7¼”D 10½”W x 9½”H x 6”D  
Black  
Black  
Black  
Weight:  
7½ lbs.  
13 lbs.  
11 lbs.  
Matching RBH Speaker: MC-414C 2-way LCR/  
Center Channel  
MC-414 2-way In-Wall  
Model:  
MC-6C  
50Hz-20kHz1  
87dB2  
MC-616C  
50Hz-20kHz1  
89dB2  
MC-6CT  
40Hz-20kHz1  
87dB2  
Frequency Response:  
Sensitivity:  
Recommended Power: 50-150 Watts  
50-150 Watts  
50-150 Watts  
Woofer:  
6½” Aluminum Cone  
Mid-range Woofer  
Two 6½” Aluminum  
Cone Mid-range  
Woofers  
Three 6½” Aluminum  
Cone Mid-range  
Woofers  
6½” Aluminum Cone  
Mid-range Woofer  
Tweeter:  
1” Aluminum Dome  
Tweeter  
1” Aluminum Dome  
Tweeter  
1” Aluminum Dome  
Tweeter  
Impedance:  
6 Ohms  
6 Ohms  
3000 Hz  
6 Ohms  
Crossover Frequencies: 3000 Hz  
100Hz-3000 Hz  
Dimensions:  
Finish:  
12½”H X 7¾”W X 8¾”D 7¾”H X19½”W X 8¾”D 40”H X 7¾”W X 11½”D  
Black  
Black  
Black  
Weight:  
17 lbs.  
24 lbs.  
55 lbs.  
Matching RBH Speaker: MC-6 2-way In-Wall  
MC-616 2-way In-Wall MC-616C 2-way  
LCR/Center Channel  
1 = ±3dB  
2 = 2.83V/1 meter  
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Troubleshooting  
Situation  
Probable Cause  
Solution  
No sound from speakers.  
Speaker wire not  
connected.  
Make sure wire is properly  
connected at both the  
speaker and the amplifier  
observing proper polarity.  
Speaker selector on  
Activate proper speaker  
amplifier is not on.  
selector on amplifier.  
No sound from one  
speaker.  
Balance control on  
receiver or preamp is  
not centered.  
Place balance control in  
the center.  
Speaker wire not  
Check all connections at  
completely connected.  
amplifier and speakers.  
Only the woofer or  
midrange/tweeter are  
playing.  
Bi-amp clips are not  
intact.  
Make certain gold bi-amp  
clips are in place and  
tightened down.  
Very little bass and/or  
imaging.  
Speakers are wired  
out of phase.  
Check entire system  
for proper polarity and  
make adjustments as  
necessary.  
Warranty  
Your MC Series theater loudspeaker speakers are covered by a limited  
warranty against defects in materials and workmanship for a period of 5 years  
from the original date of purchase. This warranty is provided by the authorized  
RBH Sound dealer where the speaker 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 authorized to service RBH Sound products. Charges for unauthorized  
service and transportation cost are not reimbursable under this warranty. This  
warranty becomes void if the product has been damaged by alteration, misuse  
or neglect. The warrantor assumes no liability for 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.  
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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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