KEF C series User manual
C series
Service manual
REVISION 1.0 Jul-2008
2-WAY BOOKSHELF SPEAKER
1
Table of Content
Service part list 2
System Specifications 3
Woofer Specifications 3
Tweeter Specifications 4
Schematic Diagram/ Exploded View of Crossover 5
Exploded View of Cabinet 6
Exploded View of C1 BK Package 8
Exploded View of C1 BK Package 9
System Frequency Response Curve 10
System Impedance Curve 11
2
Service part list
P/N Description
145B-4000+0 M.BOX C1 PR PACK
1490-7043+0 P.FOAM FOR F1
1490-7123+0 P.FOAM FOR F1 (T SHAPE)
4124-0701+0 TERMIMAL PANEL C1 JY252-7
4153-7191+0 FOOT 3M SJ-5012 BLACK KJC048-00
4154-2612+0 BLACK RUBBER FOOT FOR KHT5005
4160-1100+0 GRILLE SOCKET BK C1
SVC-GRILLE+C1 C1 GRILLE BK SPARE
SVC-TW+C1 SPART PART C1 TW
SVC-WF+C1 SPARE PART C1 WF
SVC-XOV+C1 C1 XOVER SPARE
3
System Specifications
Frequency Range 63 Hz~ 40K Hz
SPL Sensitivity 87dB @1W/m
Nominal Rating 10~100W
Dimension (H x W x D) 260x150x221 mm
Net Weight 3.2kg / pcs
Finish Black or EWL
Woofer Specifications
Rated Impedance 6+/-1.2 ohms at 1V 400 Hz
Sweep Test Sine Wave 5.5V at 20~20K Hz
Resonant Frequency (Fo) 70 +/- 14Hz at 1V
Sensitivity 86+/-2 dB/W/m
Frequency Response Fo - 3K Hz
Rated Power Input 30W
Power Test 30W RMS/Channel
(The rated power is verified by performing power handling
test by feeding rated output with IEC268-5 for 8 hours)
Heat Test 60
o
C 25~50% R.H. 24 hours
Humidity Test 40
o
C 90~95%R.H. 24 hours
Main Magnet Ø70 x Ø32x 10mm Ferrite
Bucking magnet Ø70x Ø32 x 10mm Ferrite
Voice Coil Bobbin Material Al
Cone Material Paper with PP coated
Surround Material Rubber
4
Tweeter Specifications
Rated Impedance 3 +/- 0.6 ohms at 1V 3K Hz
Sweep Test Sine Wave 1V at 1K~20K Hz
Sensitivity 86dB/W/m
Frequency Response Fo--18K Hz
Rated Power Input 50W
Power Test 50W RMS/Channel with Q1 Xover
(The rated power is verified by performing power handling
test by feeding rated output with IEC268-5 for 4 hours)
Heat Test 60
o
C /% R.H. 24 hours
Humidity Test 40
o
C 90~95% R.H. 24 hours
Voice Coil Bobbin Material Kapton
DomeMaterial Aluminum
5
Schematic Diagram of Crossover/ Exploded View of Crossover
7012-0190+0
#18AWG TWIN RED & RED/BLACK 110MM #205/205
12ohm +/-5% 5W
4.7UF/100V +-10% NP MDL ELE-C0129
RWR 5W 4.7R 5% AL
8.0UF+/-5% DFMAX5% @1KHZ 50V 10.5*27
AIR CORE 0.1MH+/-5% DCR=0.29OHM+/-10%
C
A
B
L
E
T
I
E
1
5
0
M
M
*
2
.
7
M
M
#18AWG TWIN WHITE & WHITE/BK 350MM
IRON CORE 1.7MH+/-5% 0.6OHM
#18AWG TWIN BLUE&BLUE/BLACK 0.3M 205/110
157F-805J+1-S$
1804-2090+0
7012-0170+0
7012-0120+0
157H-475K+1-OY
474B-120J+1-B
6360-1371+0
474B-4R7J+1
1806-2706+0
6360-1371+0 C
A
B
L
E
T
I
E
1
5
0
M
M
*
2
.
7
M
M
1725-331A+0001 P
C
B
F
O
R
I
Q
3
S
S
5
9
X
7
9
M
M
T
=
1
.
6
M
M
P
H
E
N
O
L
I
C
P
A
P
E
R
635N-0002+0 W
J
R
O
L
L
E
R
F
O
R
M
D
=
0
.
6
M
M
635N-0002+0 W
J
R
O
L
L
E
R
F
O
R
M
D
=
0
.
6
M
M
3004-0103+0 MODEL LABEL FOR C1 XOVER
6
Exploded View of Cabinet
7
8
Exploded View of C1 BK Package
9
Exploded View of C1 EWL Package
Other manuals for C series
1
This manual suits for next models
2
Table of contents
Other KEF Speakers System manuals
KEF
KEF cantor III User manual
KEF
KEF 5000 Series KHT5005.2 User manual
KEF
KEF 101/2 User manual
KEF
KEF LS50 Wireless II User manual
KEF
KEF 107/2 User manual
KEF
KEF 107 User manual
KEF
KEF 103.2 User manual
KEF
KEF Maidstone 109 User manual
KEF
KEF instant theatre KIT100 User manual
KEF
KEF 1000 Series KHT1005.2 User manual
Popular Speakers System manuals by other brands
Sondpex
Sondpex Active Speaker System and Digital Music... User manual and installation instructions
JVC
JVC NX-PN7 instructions
Marshall Amplification
Marshall Amplification AR-DM61-BT user manual
Yamaha
Yamaha NX-A01 - Speaker Sys Product bulletin
SE Audiotechnik
SE Audiotechnik I-LINE manual
Gemini
Gemini WRX-843 Series user manual