Determining Your Amplifier Needs
for Sound Systems
Step 1: Fill out Wattage Tap Requirement Chart (to right) determining the number of speakers that will be used at each wattage tap for the amplifier.
Step 2: Multiple the number of speakers by each wattage tap to determine Total Wattage Requirement per Tap setting (See Ex A).
Step 3:Add all the figures in shaded area to determine the total Wattage Requirement for the amplifier.
Step 4: Match total Wattage Requirement to the bottom chart "Recommended Amplifier Wattage Chart" to determine acceptable RMS Wattage your amplifier should have.
Step 5: Repeat this process for each amplifier system required.
Wattage Tap Requirement Chart
Set |
| Number of |
| Total Wattage |
Wattage |
| Speakers at |
| Requirement per |
Taps |
| Set Tap |
| TapSetting |
|
|
|
|
|
Ex A) 5 | X | 10 | = | 50 |
60X _____________ = _____________
30X _____________ = _____________
20X _____________ = _____________
15X _____________ = _____________
10X _____________ = _____________
7.5X _____________ = _____________
5 X _____________ = _____________
4 X _____________ = _____________
3.75X _____________ = _____________
2.5X _____________ = _____________
2 X _____________ = _____________
1.50X _____________ = _____________
1.25X _____________ = _____________
1.00X _____________ = _____________
0.50X _____________ = _____________
0.25X _____________ = _____________
0.125 X _____________ = _____________
Total Sum of Shaded Area
Represents Total Wattage
Requirement_____________
Recommended Amplifier Wattage Chart | Acceptable Amplifier RMS Wattage | |||
| 15 Watt | 30 Watt | 60 Watt | 120 Watt |
If Sum Wattage Total is 12 Watts or Less | X | X | X | X |
If Sum Wattage Total is between 13 and 24 Watts | X* | X | X | X |
If Sum Wattage Total is between 25 and 48 Watts | X* | X* | X | X |
If Sum Wattage Total is between 49 and 96 Watts | X* | X* | X* | X |
If Sum Wattage Total is between 97 and 204 Watts | X* | X* | X* | X* |
If Sum Wattage Total is between 205 and 216 Watts |
| X* | X* | X* |
If Sum Wattage Total is between 217 and 240 Watts |
|
| X* | X* |
If Sum Wattage Total is between 241 and 288 Watts |
|
|
| X* |
* RMS Amplifier used in conjuction with Speco Technologies’
For more information contact us at:
Speco Technologies 200 New Highway,Amityville, NY 11701 Web: www.specotech.com
Toll Free:
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