Speaker Wires
Speaker cables are
used to link speakers with receivers or power amplifiers.They are also
used for the internal wiring of the speakers per se. High conductivity
copper which is 99.95% pure and which makes audio cable performance comparable to that of oxygen free copper cable is what we use to manufacture our CAT 5 cables.
Cable Selection Guide
AWG
|
Cross
Section
MM
Square
|
4 ohm Speaker
|
8 ohm Speaker
|
70V Speaker
|
|
Power (%) Loss (dB/Ft.)
|
12
|
3.30
|
140
|
305
|
1150
|
285
|
610
|
2285
|
6920
|
14890
|
56000
|
14
|
2.09
|
90
|
195
|
740
|
185
|
395
|
1480
|
4490
|
9650
|
38300
|
16
|
1.33
|
60
|
125
|
470
|
115
|
250
|
935
|
2840
|
6100
|
222950
|
18
|
0.82
|
40
|
90
|
340
|
85
|
190
|
685
|
2070
|
4450
|
16720
|
20
|
0.51
|
25
|
50
|
195
|
50
|
105
|
390
|
1170
|
2520
|
9500
|
22
|
0.32
|
15
|
35
|
135
|
35
|
70
|
275
|
820
|
1770
|
6650
|
24
|
0.20
|
10
|
25
|
85
|
20
|
45
|
170
|
520
|
1120
|
4210
|
26
|
0.13
|
5
|
15
|
50
|
10
|
25
|
130
|
450
|
880
|
3.210
|
The number of feet of cable you can run for a given loss and performance budget
How to use the above guide?
- Select the appropriate speaker impedance column
- Select the appropriate power loss column deemed to be acceptable.
- Select the applicable wire gauge size and follow the row over to the columns determined in steps 1 & 2.
The number listed is the maximum cable run length
Example: The maximum run for 12 AWG in a 4 speaker system with 11% power or .5dB loss is 140 ft. ohm. Double Flexible Wires
No. of
Strands
SWG
|
A.T.C.
Cond. Size in
mm
|
Cross
sect. area in
mm²
|
Overall
dia. in
mm
|
Conductor
Resistance
ohm/km at 20ºC
|
14/42
|
0.102
|
0.1143
|
1.7
|
150.79
|
14/39
|
0.132
|
0.1915
|
1.8
|
90.04
|
23/39
|
0.132
|
0.3146
|
2.2
|
54.80
|
23/38
|
0.152
|
0.4171
|
2.5
|
41.33
|
23/36
|
0.193
|
0.6725
|
2.5
|
25.64
|
40/40
|
0.122
|
0.4673
|
3.5
|
36.89
|
40/38
|
0.152
|
0.7255
|
3
|
23.76
|
40/36
|
0.193
|
1.1696
|
3
|
14.74
|
Twin Parallel Wire
No. of
Strands
SWG
|
A.T.C.
Cond. Size in
mm
|
Cross
sect. area in
mm²
|
Overall
dia. in
mm
|
Conductor
Resistance
ohm/km at 20ºC
|
7/38
|
0.152
|
0.1269
|
2.0
|
135.80
|
7/38
|
0.152
|
0.1269
|
2.0
|
135.80
|
14/40
|
0.122
|
0.1636
|
2.0
|
|
14/38
|
0.152
|
0.2539
|
2.4
|
67.90
|
| 14/38 |
0.152 |
0.2539 |
1.0
|
67.90 |
14/39
|
0.132
|
0.1915
|
2.3
|
90.04
|
14/36
|
0.193
|
0.4094
|
2.3
|
42.12
|
23/40
|
0.12
|
0.2687
|
2.5
|
64.16
|
23/36
|
0.193
|
0.6725
|
2.5
|
25.64
|
40/36
|
0.193
|
1.1696
|
3.4
|
14.74
|
80/.2
|
0.203
|
2.5879
|
4.0
|
6.66
|
|
