4 Specifications
All amplifier specifications apply to the following settings: Stereo mode with 8-ohm loads and an
input sensitivity of 32dB, unless otherwise specified.
Power Specification
Output Power:
The following specifications are guaranteed minimums for standard 1 kHz power.
For more information, see the closed table (maximum average power @ 0.1% THD +N).
Load Impedance:
Safe with all types of loads. Rated at 4 to 8 ohms in Stereo, 4 to 8ohms in
Bridge-Mono and 4 to 8 ohms in Parallel-Mono mode.
Required AC Mains:
Current, frequency and voltage requirements are provided on each unit's
back panel.
WCE 200: (220/50Hz)
8 A of current.
WCE 400: (220/50Hz)
10 A of current.
3.3.1 Drive Protection
The Drive Protection System temporarily removes output drive to protect the amplifier and its
loads. Drive Protection System can be activated in two situations. First, if dangerous subsonic
frequencies or direct current (DC) is detected in the amplifier's output, the unit will activate its
DC/low-frequency protection circuitry, which puts the amplifier in Drive Protection mode. This
mode protects the loads and prevents oscillations. The unit resumes normal operation as soon
as the amplifier no longer detects dangerous output. Although it is extremely unlikely that the
DC/low-frequency protection system will ever be activated, improper source materials like
subsonic square waves or input over-loads, that excessively clip the input signal, can activate
this system.
The amplifier's protection system will activate the amplifier's Drive Protection mode in rare
situations where heavy common-mode current is detected in the output. The unit should
never output heavy common-mode current unless its circuitry is damaged. Activating Drive
Protection mode helps prevent further damage.
3.3.2 Signal Limiting Circuit
This internal limiting circuit automatically reduce gain because of a significant deviation
between input and output signal flow, preventing occurrence of gross non-linearity conditions
inside the amplifier caused by overdrive, overload or defect, and keeps the signal shape
unaltered under any conditions. The circuit keep signal flow distortion under 0.5%, and thus
guarantees clean sound and effective speakerprotection.
6
User Manual/Manual de Uso WCE 200/400
EN
