American Acoustic Development Speaker C Series 3G User Manual

C Series-3G Loudspeakers  
Owner's Information  
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4. Precise stereo imaging. Close tolerance pair matching of drivers ensure a stable  
stereo image. Minimal phase crossovers ensure great depth and width of the sound  
stage.  
5. Compatibility and flexibility. The C Series-3G includes many models of bookshelf,  
centre channel, floor standing, rear surround speakers and subwoofers in various  
sizes to provide maximum flexibility for different home theatre and stereo  
application. No matter what your requirements are and type of room you have, a  
custom designed system by using speakers from the C Series-3G will meet your  
personal needs.  
C Series-3G Family Products  
Refer to Table 1 for specifications  
C-204  
C-305  
C-11  
C-150  
VOLUME  
F
R
E
Q
UENC  
Y
P
HAS  
E
MIN  
R
MAX  
25H  
3
0
Hz  
60H  
1
6
0
0
¡
ã
1
8
0
¡
ã
z
40Hz  
z
80H  
z
100Hz  
P
O
WE  
E
Q
+10dB  
0dB  
+10dB  
O
F
F
O
F
F
AUTO  
0dB  
O
N
O
N
-10dB  
-10dB  
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C-44W  
C-44  
C-45  
C-880  
C-660  
C-550  
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Placement  
Two Channel Stereo Application  
For stereo listening, you may choose any one pair of bookshelf or floor standing model.  
The size of speakers should be determined by the size of your living space so that they  
can provide sufficient volume. The two loudspeakers should be placed an equal  
distance from your listening position.  
Bookshelf systems will also benefit from placement on stands or shelves. The  
C Series-3G stands are designed to match the bookshelf speakers functionally and  
aesthetically.  
Placing the loudspeakers in corners or against a wall will result in the strongest (but  
not necessarily the most accurate) bass. For the best stereo imaging, we recommend  
that the systems be placed so that the high frequency transducers are as close as  
possible to the ear level of a seated listener.  
Every room has different acoustic characteristics and people have different tastes in  
sound. You should experiment to find out the placement position that satisfy your  
personal tastes.  
Home Theater Application  
To get the best surround sound from your C Series-3G speakers, we recommend to  
position the speakers at the same distance from the listening position.  
The centre speaker, however, may be moved closer, but not beyond the straight line  
connecting the two front speakers. The rear speakers may also be closer to listening  
position than the front speakers to suit the configuration of your room.  
Notes:  
-
Do not place the centre or rear speakers farther away from the listening position  
than the front speakers.  
-
When mounting the rear speakers on side walls perpendicular to the listening  
position they should be placed 60-90cm above the listener's ear level at sitting down  
position.  
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Depending on the shape of your room (etc.), you may wish to place the rear speakers  
behind you instead of on the side walls. In this case, you can use a pair of large floor  
standing speakers matching your front speakers.  
Connections  
Note: Make sure your amplifier is off and disconnected from power while you are  
connecting speakers to amplifier. Turn your amplifier on only after you check and  
make sure speakers are properly connected.  
Two Channel Stereo Application  
Connections are made at the terminals located on the back of the loudspeaker system.  
The terminals accept spade plugs, bare wire or banana plugs. For best results, use high  
quality speaker cables.  
All C Series-3G loudspeakers have 4 gold plated binding post for single or bi-wring  
options.  
Single Wiring  
This method uses only one pair of cables to connect each speaker to the amplifier. (see  
Fig. 1).  
For each channel, the red terminal on the loudspeaker should be connected to the red  
or (+) loudspeaker connection terminal on the receiver or amplifier. The black  
terminal on the loudspeaker should be connected to the black or (-) loudspeaker  
connection terminal on the receiver or amplifier. Connecting the loudspeakers in this  
manner ensures that they will be in phase; that is work together rather than in  
opposition. Connecting the loudspeakers out of phase will not damage them, but will  
result in less bass and poor imaging.  
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Note: make sure the metal links are in place.  
Bi-Wiring  
Bi-wiring increases the flow of current and will usually improve the sound quality.  
This method uses two pair of cables: one pair for the upper two terminals and one pair  
for the bottom two terminals (see Fig. 2).  
Connect the speakers to amplifier the same manner as you do single wiring.  
You will need one pair of cable for each speaker in the system.  
Note: remove the metal links.  
Home Theater Application  
Adding centre and rear speakers to the left and right channels will enhance the  
surround effects of motion pictures. If you choose smaller models, an active sub-  
woofer is essential for adequate bass reproduction.  
On the back panel of your AV amplifier, locate the Front Speaker, Centre Speaker, and  
Rear Speaker terminals.  
Using the same method as connecting two channel stereo speakers, connect left and  
right, centre, and rear speakers to the corresponding terminals on the AV amplifier.  
Again, be sure to match the speaker cables to the appropriate terminals on the  
components: (+) to (+) and (-) to (-) to ensure sufficient bass and clear imaging.  
Adding a subwoofer to your home theater system will greatly improve bass  
performance and provide fuller impact from motion pictures. We recommend C-11  
subwoofer for smooth transition and configuration.  
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C-11 Power ed Subwoofer  
Owner 's Infor mation  
Impor tant Instr uctions  
1. Read your owner's manual carefully before using the product. Retain this manual  
for future reference.  
2. The subwoofer should be placed at a ventilated, dry and cool location, away from  
any heat sources such as radiators or amplifiers. Do not obstruct the amplifier in  
the C-11 from ventilation. It is necessary that air can flow around the finned heat  
sink on the rear panel of the amplifier.  
3. Do not use the subwoofer near water or expose it to rain or moisture.  
4. Always unplug the power cord first when making connections. Switch power on  
only after you check and make sure all connections are made correctly.  
5. Unplug the power cord from the outlet when you are not going to use the  
subwoofer for a long period of time.  
6. To clean, unplug the power cord from the outlet first. Use a damp cloth only to  
wipe dust off the surface. Do not use any liquid cleaners.  
7. Do not put coffee cups or other objects on top of the cabinet. They can be shaken  
off when the subwoofer is in operation as it can produce a lot of vibration.  
Intr oduction  
C-11 is a home theater subwoofer equipped with a build-in equalizer. The  
5-  
band equalizer is a powerful tool in correcting anomalies of subwoofers caused by  
room acoustics. It will greatly increase subwoofer performance when used properly.  
In the real world, subwoofers generally do not have a flat frequency response. Only  
in ideal conditions such as open air or large anechoic test chambers do they have a  
perfect response measurement. When a subwoofer is played in a listening room, the  
bass frequencies can be up or down 10 dB from the ideal response. The sound can  
have a boomyor ill-defined bass that will impair the overall musical performance.  
The  
5-band equalizer is designed to control offending bass notes that booms”  
louder than they should. It features precisely aligned 1/3-octave equalization filters  
that are only found on the best professional audio equipment.  
The cabinet has been designed using extensive computer modeling for the best  
possible alignment between driver and box. Coupled with two high excursion  
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proprietary 8drivers, the C-11 produces clean, powerful and controlled bass. Three  
large rear-firing vents ensure ventilation of both driver and amplifier for cool  
running at high power. The vent's large bore and gas flowedcross-section reduces  
air turbulence that causes audible distortion.  
Functions and Connections  
Please refer to Fig. 3 (Front control panel) and Fig. 4 (Back panel) for functions on  
C-11 Subwoofer amplifiers  
6
5
Fig. 3  
Fig. 4  
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Power switch on/off  
Upper position: Power on  
Lower position: Power off  
Middle position: Auto on  
At this position the subwoofer amplifier is in a stand by mode, awaiting an input  
signal. When there is no signal, the amplifier is shut down. As soon as the signal  
appears, the amplifier switches on. If signal is absent, the amplifier will shut  
down automatically after a pre-determined period of time. The power indicator  
is red when the switch is at OFF position, and green when the switch is at ON  
or AUTO position.  
Volume Contr ol  
Use this control to balance the level of the woofer with the level of your main  
speakers.  
Cr ossover Fr equency control  
If you are using small loudspeakers (4to 6woofers) in your main system, you  
will need to set the crossover frequency at a high position (100 to 160 Hz). If  
your main speakers have larger woofers (8and above) you will need to set the  
crossover frequency to much lower position (40 to 80 Hz). Generally, the larger  
the speaker, the greater the low frequency output will be. If the frequency  
control is set too high, the bass will appear boomydue to outputs of  
subwoofer and main speakers overlapping each other. If it is set too low, the  
bass will be ill defined and the subwoofer will sound detached from the rest of  
the system.  
Phase Contr ol  
Use this control to determine the best possible bass performance of your system.  
There can be interference between your main speakers and subwoofer at the  
frequency where they cross over due to placement, room acoustics and type of  
main speakers used. By carefully positioning the subwoofer in the room in  
combination with the level and crossover control, you should be able to get a  
seamless transition between your main speakers and subwoofer. Start with the  
full anticlockwise 0 position. This means that the subwoofer will push out  
positive pressure wave corresponding to a positive electrical input. The  
180 full clockwise position inverts this so the subwoofer will put out a negative  
1-9  
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pressure wave. You can use this position if you are unable to get a good  
integration between the subwoofer and main speakers.  
Equalizer on/off  
At “off” position, the amplifier will function normally without the effect of the  
5-band equalizer.  
5-band Equalizer  
Please refer to “Setting up EQ for the Room”  
High Level Inputs L&R  
These inputs should be connected to the left and right speaker terminals of your  
amplifier/receiver, if you intend to connect the subwoofer using this option  
instead of the low-level RCA input connections.  
8
High Level Output L&R  
You could connect your main speakers from the subwoofer amplifier instead of  
the main amplifier/receiver. Use this option if you are connecting the  
subwoofer up via the High Level Input.  
CAUTION! Do not use both low level and high level connection methods  
simultaneously. This may cause damage to the subwoofer and your  
amplifier/receiver.  
Low level Input & Output  
Connect this to the pre-amp output of your amplifier/receiver. If you do not  
have a pre-amp output or a power amplifier input, you can connect up the  
subwoofer using the Low Level Input/Output utilizing a tape input/output  
amplifier/receiver. Connect the tape output to the Low Level Input on the  
subwoofer, then connect the tape input to the Low Level Output on the  
Subwoofer. To switch the subwoofer into the circuit, switch the tape monitor  
input on your amplifier/receiver.  
Use this in conjunction with your receiver/amplifier. Connect this output to the  
power amplifier input of your amplifier/receiver.  
Power input socket and Fuse  
For continued protection, replace only with same type fuse. (A spare fuse is  
enclosed for replacement.)  
1-10  
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Connection  
Please see diagrams below for different method of connecting the subwoofer to your  
main amplifier/receiver. It may be possible to use alternative connecting methods.  
Please refer to the owner's manual of your amplifier/receiver or seek professional  
advice from your retailer or installer.  
CAUTION! Before switching power on, please make sure all connections are made  
properly, i.e., positive to positive, negative to negative.  
Connection method 1:  
Connecting the subwoofer using dedicated subwoofer RCA output from receiver (see  
Fig. 5)  
Connection method 2:  
Connecting subwoofer between pre-amplifier outputs and power amplifier inputs  
( see Fig. 6)  
1-11  
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Setting up EQ or the Room  
Play some familiar pieces of music that have prominent bass lines. Start with the EQ  
switched out and then adjust the EQ filters one by one switching the EQ in and out. It  
is better to start with the EQ cutting the frequencies and not boosting them.  
Remember that a 10 dB boost is adding ten times the power at that frequency so it  
would be easy to overload the system at high power levels with the EQ sliders set at  
maximum.  
Room Size and Room Position  
The size of the room and the position of sub-woofer placement will also determine  
low frequency limit of the subwoofer. So by adjusting the EQ settings, the ideal  
response can be obtained without having to place the subwoofer in an unpractical  
location. Small rooms usually add gain to low frequencies, which can be  
overpowering to the rest of the music. Large rooms need greater low frequency  
energy to sound balanced. The EQ settings can be adjusted to fit the room size. The  
5 band equalizer should be used with great caution. The power levels to the speaker  
can be boosted by as much as 10 times! So if the subwoofer is running at 100 watts  
the EQ boost at maximum will try to push the amplifier to an impossible 1000 watts!  
Although the amplifier and speakers are designed to handle overload conditions it is  
still possible to cause damage from mis-use.  
Placement of Subwoofer  
The subwoofer can be placed virtually anywhere in your room without affecting the stereo  
image of your main speakers. Placing the unit in a corner of the room will yield the greatest  
bass output but may not provide the best sound, as this position will cause maximum room  
mode resonance. You can start with this position and then move the subwoofer to different  
areas until you find the sound satisfactory. The best method is to try different positions.  
Keep a clearance of 100mm/4from the wall or furniture to provide best performance.  
1-13  
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Gener al Car e  
The loudspeaker cabinet may be cleaned with a slightly damp cloth. Grilles should be kept on  
the speakers to protect the drive units when the speakers are not being played. Never use any  
solvents to clean any part of the system.  
The grille is held in place by pins near the edges. To remove the grille, grasp it by both  
top and bottom edges and pull gently. To replace the grille, reposition it carefully and  
press gently at the corners. Do not push on the center area of the grille. Keep the grille  
free of dust and dirt. To clean, remove the grille from the cabinet and vacuum lightly.  
Warranty & Service  
The C-3G Series speakers come with warranty period of 3 years, starting from the date of  
purchase. This warranty is provided to original owner, and covers defect in materials or work-  
manship that occurs in normal use. This warranty excludes damage that results from abuse, mis-  
use, accidents, shipping, or repairs or modifications by anyone other than authorized  
representatives. The warranty is void if serial number has been removed.  
Should you need service on your speakers, please bring it to the dealer whom you purchased  
from along with sales slip.  
If this is not possible, call or write to:  
American Acoustic Development LLC  
8559 Page Ave, St. Louis,  
MO 63114, USA  
Tel: 314-814-3383  
Fax: 314-628-9941  
1-14  
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C series-3G Specification  
Standard Cabinet Finish: Cherry/Classic Black(viny1)  
C-150  
89  
377x191x251  
940x222x282  
1050x257x322  
1253x299x377  
156x494x195  
191x529x250  
260x156x151  
259x263x91  
8.5  
18.5  
23.5  
31  
C-550  
C-660  
C-880  
C-204  
C-305  
C-44  
20-200  
20-250  
20-100  
20-150  
20-80  
30-20  
25-20  
70-20  
92  
88  
89  
7.5  
12  
40-20  
80-20  
80-20  
4
C-44W  
C-45  
20-80  
3.75  
5.75  
89  
20-100  
259x287x143  
2 4  
C-11 Specifications  
Amplifier type  
Power  
Solid state Class A/B  
160 watts continuous into 4 Ohm  
Proprietary 10diaphragm  
Aluminum Cone / 60 Az magnet / 2voice coil  
Woofer  
Frequency response  
30 Hz to 160 Hz +/- 3 dB  
Continuously variable from 30 Hz to 160 Hz  
24dB/octave  
Electronic crossover  
Phase contr ol  
5 Band EQ  
Variable 0 - 180  
+
10dB at 25Hz 40Hz 60Hz 80Hz 100Hz  
Low level RCA 300mv sensitivity in both channel  
High level 5 way binding post 10v sensitivity  
Inputs  
Low level RCA  
High level 5 way binding post  
Outputs  
Enclosur e type  
Vented bass reflex  
514(H) x375 (W) x445(D) mm  
23.5 Kg  
Cabinet dimensions  
Net weight  
Cherry/Classic Black(viny1)  
Finish  
1-15  
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