CI-1255e™ Power Amplifier
Hafler
Passion for Perfection
13
fAQ
how long does it take for the eCoSySTem to turn off?
If the CI-1255e does not ‘see’ any signal for over one minute, the ECOSYSTEM circuit will power down the amp to save energy.
Will I lose some music or communication during power up?
No, this would be very unlikely as the ECOSYSTEM will re-activate the amp within 10 milliseconds which is less time than it takes to
verbalize a consonant.
Can I have all 12 channels play the same program material in mono?
Yes. The easiest way to do this would be to use the CI-9020 stereo to mono converter.
Can the CI-1255e be used in countries that operate at 240 volts?
Yes. The CI-1255e is designed with sufficient headroom to handle 240 volts.
Can I bridge other channels mono like channels 11 and 12?
No, only the last two channels can be bridged.
What happens if I use a loudspeaker with a lower impedance than rated?
Do not do so. The Hafler CI-1255e is designed to work within certain limits and applying the proper load is critical to long term reliability.
What happens if I use a loudspeaker that is rated higher than the recommended impedance?
The efficiency of the system will be reduced and the system will not play as loud.
Can I stack more than one amplifier on top of each other?
Yes, but this must be done in such a way to ensure proper ventilation. If stacked on a shelf, ensure the large feet are employed and
that the sides and back are free from obstructions. If you are rack mounting the CI-1255e using the optional 19” rack ears, leave a rack
space in between each amp to ensure air flow is not restricted.
Will the fan be noisy?
The CI-1255e employs a very special ultra-quiet HushTone™ fan that produces less than 22dB of sound. This is quieter than most
household appliances. When the amplifier is in the low power ECOSYSTEM mode, the fan is shut off.
What happens if I notice a dead short - like a nail or screw through a speaker cable?
Switch off the amp power switch immediately and remove the nail or screw. Using an ohm meter check to see if the wires are still not
short circuited and they are working properly. Replace the wire if there are any problems.
do all channels need to be connected for safe use?
No. You can use as many or as little channels as you like. Simply leave the amp channel that are not in use unterminated and make
sure the bus switch is in the out position.
Summary of Contents for CI-1255e
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