AIRPULSE C-9 Technical manual

C-9 Powered Subwoofer
Owner s Information'
Platinum Technology Co., LTD

C-9 Powered Subwoofer Information
Important Instructions
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 subwoofer
amplifier 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 them 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 of the surface. Do not use any liquid cleaners.
'
8. 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.
Functions and Connections
Please refer to Fig.1 for functions on the amplifier.
7. It s CLASS I apparatus, it shall be connected to a mains socket outlet with a
protective earthing connection. Do not defeat the safety purpose of the ground-
ing plug.
CR OS SOV ERVO LU ME
180
PO WER
OFF
O
I
AC ~IN PUT
ON
Hz30MAXMIN 0160
PH AS E
IN OU T
DE SI GN ED B Y PH IL JON ES

Power Switch on/off
Upper position: power on
Lower position: power off
Volume Control
Use this control to balance the level of the subwoofer with the level of your main
speakers.
Crossover frequency control
If you are using small loudspeakers (4" to 6" woofers) in your main system, your
will need to set the crossover frequency at a high position(100 to 160Hz). If your
main speakers have larger woofers(8" and 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 "boomy" due 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 Control
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 speaker 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 degree position. This means that the subwoofer will push out
positive pressure wave corresponding to a positive electrical input. The 180
degree full clockwise position inverts this so the subwoofer will put out a negative
pressure wave. You can use this position if you are unable to get a good
integration between the subwoofer and main speaker.
Power input socket and Fuse
For continued protection, replace only with same type fuse.
Line In/ Line Out
Connect Line in to the subwoofer output of your amplifier/receiver. If you do not
have a subwoofer output, you can connect up the subwoofer using the Line In/Out
utilizing a tape input/output amplifier/receiver. Connect the tape output to the
Line Input on the subwoofer, then connect the tape input to the Line Output on the
subwoofer. To switch the subwoofer into the circuit, switch the tape monitor input
on your amplifier/receiver.
1
2
3
4
5
6

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. 2)
CR OSS OVE RVO LUM E
180
POW ER
OFF
O
I
AC~ INP UT
ON
Hz30MAXMIN 0160
PH ASE
IN OU T
DE SI GNE D BY P HI L JON ES
CR OSS OVE RVO LUM E
180
POW ER
OFF
O
I
AC~ INP UT
ON
Hz30MAXMIN 016 0
PH ASE
IN OU T
DE SI GNE D BY P HI L JON ES

C-9 Specification
System:
Amplifier Type:
Power:
Driver:
Frequency Response:
Electronic Crossover:
Phase Control:
Inputs/Outputs:
Dimensions(HXWXD):
Net Weight:
430X320X350(mm) / 16.9X12.6X13.8(inch)
18 Kg (39.6 Lbs)
RCA low level
0°-180° variable
variable 30Hz-160Hz,24dB/octave
30Hz-200Hz +/3dB
10" composite cone woofer
110 watts RMS
Solid state class A/B
Active Subwoofer
Service and Warranty
The C-9 Subwoofers have a warranty period of 1 year, starting from the date of
purchase. This warranty is provided to the original owner who purchased the
product from an authorized dealer. This warranty covers defect in materials
or workmanship that occurs in normal use only, and 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:
8509 Mid County Industrial Dr.St Louis,
MO 63114, USA
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]

Platinum Technology Co., LTD.
www.air-pulse.com