A 4 ohm or 8 ohm speaker load may be connected to the COM and either the 4 ohm or 8 ohm terminals.
NOTE:
THE WATTAGE RATING OF THE 4 OHM OR 8 OHM SPEAKER LOAD SHOULD NOT BE
EXCEEDED.
To minimize power loss in the system cabling, use a wire gauge suitable for the power being distributed and the length of
cable. See Wheelock product bulletin # 89-91.
NOTE:
TO ALLOW FOR FUTURE EXPANSION, AND DISTRIBUTION CABLE LINE LOSS, IT IS
RECOMMENDED THAT THE TOTAL SYSTEM WATTAGE SHOULD NOT EXCEED 85% OF THE
AMPLIFIER'S RATED OUTPUT (I.E. 51 WATTS FOR THE TPA-60 AND 85 WATTS FOR THE TPA-
100).
THE TOTAL SYSTEM WATTAGE REQUIREMENT IS THE SUMMATION OF THE WATTAGE TAP
SELECTIONS OF ALL SYSTEM SPEAKERS AND HORNS.
OUTPUT CONNECTIONS
FIGURE 5.
LINE OUTPUT (FIGURE 6):
The LINE OUTPUT jack on the back panel, can be used to cascade amplifiers (including amplified speakers, or
Wheelock PRM 150 preamplifiers), or connect (send signal to) a tape recorder. The signal on this output is a line level
mix of the amplifier's input channels. Use single conductor shielded cable with standard RCA type phone plugs.
LINE OUTPUT
FIGURE 6.
NOTE:
THE LINE OUTPUT SIGNAL IS CONSTANT AND IS UNAFFECTED BY THE AMPLIFIERS
MASTER VOLUME, BASS AND TREBLE CONTROLS.
P82423 C
Sheet 5 of 10
A. CASCADING AMPLIFIERS (FIGURE 7):
TPA-60-B and TPA-100-B amplifiers can be cascaded to expand existing systems or to distribute large speaker
loads.
CASCADING AMPLIFIERS
