288 Monaural Amplifier Rev 1.2
4
To be safe, always ensure your speakers are connected before plugging amplifiers into an outlet.
Likewise, always unplug the amplifier from the outlet before removing the speaker load.
This amplifier comes equipped with 4, 8, and 16-ohm output impedances for maximum flexibility. If
you are unsure of your speaker’s impedance, contact the manufacturer.
Connect speakers between 4, 8, or 16-ohm binding post on the back of the amplifier, based on
nominal speaker impedance, and the Comm. Binding posts.
1.3
Powering ON & OFF
The analog backlit VU meter on the front face of the amplifier illuminates when powered on.
Tube warm up time is typically 30 seconds. It will take at least this long for music to play from
speakers. Best performance is achieved after the amplifier has been running for a period of time
and up to a steady temperature, typically 30 minutes.
When powering off, music may still play for a few seconds. This is normal. While the tubes are hot,
make sure not to move or knock into the amplifier since hot tubes are more susceptible to internal
damage.
1.4
Input Setup
This amplifier is designed to drive a speaker load to its full rated output power based on typical
line level input signals via the RCA connector on the back.
Depending on the input source components, an additional preamp may be needed to achieve full
output power.
See Section 3.4
–
Typical Specifications.
