User Manual

Overload Protecon
All REL Sub-Bass Systems are designed as true sub bass speakers. They are designed to reproduce those
exceponally deep notes that are felt as well as heard. This it will aempt to do at whatever volume level
you set. If set too high no damage should result because the built-in electronics will limit the cone movement.
This electronic control is called Set-Safe™. It constantly and instantaneously monitors the output from the
power amplier and is totally transparent in operaon unl required. This means it has absolutely no eect
on the sound quality of your REL unl an overload is detected.
Ordinarily an overload would cause the power amplier to go into clipping with resultant loss of control
over the drive unit. This can cause drive unit damage, and always sounds nasty. Set-Safe™ detects the point
of incipient clipping and gently so-clips the waveform of the signal to ensure actual clipping does not occur.
This is a necessarily simplied descripon of what actually happens, but in eect, Set-Safe™ controls the
amplier and ensures there is minimum risk of amplier and driver damage caused by over-driving.
A thermal overload device is ed to all Serie T/x Sub-Bass Systems. If the unit is deliberately over-driven
this device will sense the temperature rise and cut the output; recovery me is approximately ve minutes.
If this happens, it is a warning that the unit is being over-driven and the volume level control should be
reduced to a safe level.
Although everything possible has been done to minimize risk of thermal overload failure, there can be
no defense against those individuals who deliberately abuse the device. Such damage is NOT covered by
warranty. Please remember your REL is there to supplement your main system, not overwhelm it!
Power Saving Eciency
All REL sub bass system designs ulize a true On-O switch that aords the owner the ability to turn o
their unit completely, without having to unplug the A/C mains cord. When a REL sub bass system is switched
o using the On-O switch on the rear panel it draws ZERO power.
Leaving a REL on, produces the best sonic performance and the most reliable operaon. Using this seng
ensures that the Serie T/x is ready to react instantaneously to bass transients, whether in music or lms.
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