REL HT/1003, Руководство по эксплуатации

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The HT/MKII employs an advanced filter circuit which provides exceptional performance when coupled to
the rest of the signal chain of the Sub-Bass System.
The amplifier is inherently stable and will retain its characteristics over very long periods of time – important
in a unit designed for an exceptionally long working life. These amplifiers are designed to withstand reasonable
abuse and overloads. If in doubt, please contact your dealer.
We believe that the importance of the electronics, cabinet and drivers being designed to work in harmony is
paramount. This belief allows HT/MKII to achieve the highest possible level of fidelity.
Overload Protection
All REL Sub-Bass Systems are designed as true sub bass speakers. They are designed to reproduce those
exceptionally deep notes that are felt as well as heard. This it will attempt 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 amplifier and is totally transparent in operation until required. This means it has absolutely no effect
on the sound quality of your REL until an overload is detected.
Ordinarily an overload would cause the power amplifier 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 soft-clips the waveform of the signal to ensure actual clipping does not occur.
This is a necessarily simplified description of what actually happens, but in effect, Set-Safe™ controls the
amplifier and ensures there is minimum risk of amplifier and driver damage caused by over-driving.
A thermal overload device is fitted to all HT/MKII Sub-Bass Systems. If the unit is deliberately over-driven
this device will sense the temperature rise and cut the output; recovery time is approximately five 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!
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Technical