TOA bs-1030 Mode D'Emploi
TOA Electronics Speaker Guide
A-1
Appendix A: Wire Size Charts
Table 1
Speaker Cable Lengths (ft) and Gauges (AWG) for 70.7 V Line with 1 dB Power Loss
Table 2
Speaker Cable Lengths (ft) and Gauges (AWG) for 25 V Line with 1 dB Power Loss
* Greater than 10,000 feet
** Not recommended, may exceed safe current capacity of wire
** Not recommended, may exceed safe current capacity of wire
70.7 V
Wire Gauge
(AWG)
10
12
14
16
18
20
22
Load Power
(W)
Load Impedance
(
Ω
Ω
Ω
Ω
)
Maximum Cable Distance (ft)
10
490
*
*
*
7,200
4,600
2,800
1,800
15
327
*
*
7,600
4,800
3,000
1,920
1,200
20
245
*
9,200
5,600
3,600
2,200
1,400
900
30
163
10,000
6,200
3,800
2,400
1,500
960
600
40
122
7,400
4,600
2,800
1,800
1,100
700
450
60
81
5,000
3,200
1,900
1,200
730
480
**
100
49
2,900
1,820
1,120
720
230
**
**
200
24.5
1,450
910
560
360
110
**
**
400
12.2
730
460
280
180
**
**
**
25 V
Wire Gauge
(AWG)
10
12
14
16
18
20
22
Load Power
(W)
Load Impedance
(
Ω
Ω
Ω
Ω
)
Maximum Cable Distance (ft)
10
61
3,700
2,300
1,400
900
575
350
225
15
41
2,500
1,550
950
600
375
240
150
20
31
1,850
1,150
700
450
275
175
113
30
20
1,250
775
475
300
188
120
**
40
15
925
575
350
225
138
**
**
60
10
625
400
238
150
**
**
**
100
6
363
228
140
90
**
**
**
200
3
181
114
70
**
**
**
**