Beale Xpress TIC651, Installation Manual, Page: 7 / 16

7
Installation
TAP WATTAGE
In a 70/100V system it is necessary to select tap wattage to determine
amplifier power requirements and set relative speaker volume.
25V
0.2
0.3
0.5
0.9
1.8
8
Ω
100V
70V
1.9
3.8
3.8
7.5
7.5
15
15
1.9
1
X
25V
0.2
0.4
0.7
1.3
2.5
8
Ω
100V
70V
2.5
5
5
10
10
20
20
2.5
1.3
X
25V
0.3
0.5
0.9
1.8
3.5
8 Ω
100V
70V
3.8
7.5
7.5
15
15
30
30
3.8
1.9
X
Note that each of the three Xpress 70/100V models have different tap
settings.
Use the gauge on the tap that corresponds to the distribution line voltage
used for the system being configured (25V, 70V, 100V).
Add up the total tap wattage set for all of the speakers to be connected to
a 70V/100V zone and multiply by 1.2. This will provide sufficient power to
compensate for an efficiency loss of around 20% that is typical in 70/100V
systems.
8Ω
If a low impedance amplifier is going to be used, be sure to set the speaker
Tap Selector to 8Ω, and connect the amplifier speaker te/- to the
INPUT +/- on one 8Ω speaker. If the amp is capable of a low impedance
load, (4Ω/2Ω) and if the speaker load is acceptable, (two 8Ω speakers, one
4Ω speaker, etc) connect the speaker(s) to the amp in parallel, (all speakers’
+ to amp +, all speakers’ - to amp -) not daisy chain as used for 70/100V.
If you’re not sure about an amplifier’s load handling capability, contact the
amplifier manufacturer’s technical support for assistance to avoid potential
major damage to the amp and speakers.
TICW401 Tap TIC651 Tap TIC801 Tap