7
Operating Manual - TM-335 Public Address Mixer/Amplifier
Speaker Wiring
● Before connecting speakers to the TM-335 unit, be sure to disconnect the AC power cable.
● Make certain that the load impedance is not less than the rated impedance indicated.
● Low Z (4
Ω or 8Ω
), 25V, and 70V speaker loads should not be wired in combination with each other.
● Use class 2 wiring.
For the 4
Ω
low impedance terminal, connect as shown below, with the negative (-) speaker wire
connected to the COM terminal and the positive (+) speaker wire connected to the 4
Ω terminal.
Note
from the illustration how two 8
Ω
speakers can be wired in parallel to make a 4
Ω
load.
For the 8
Ω
low impedance terminal, connect as shown below, with the negative (-) speaker wire
connected to the COM terminal and the positive (+) speaker wire connected to the 8
Ω terminal.
Note
from the illustration how two 4
Ω
speakers can be wired in series, or two 16
Ω
speakers can be wired
in parallel to make an 8
Ω
load.
For 25V and 70V terminals, connect with matching transformers as shown below.
Note: 230V
export models have 70V and 100V taps instead of 25V and 70V.
