AAVIK U-280 - Rear Panel Features and Connections; Speaker Terminal Connections; Pre-Out Connections; Digital Input Ports

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SPEAKER TERMINALS
The amplifier accepts speaker cables terminated with
spade connectors and 4 mm banana plugs.
To connect speaker wires terminated with spades,
loosen the isolation knob and insert the spade be-
tween the isolator and terminal. Tighten the isolation
knob to secure the spade.
To connect speaker wires terminated with banana
plugs, insert the banana plug into the center hole of
the terminal.
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PRE OUT
The amplifier is equipped with a set of pre out (pre-
amplifier output) connections. They can be used for
an active sub-woofer, a separate power amplifier or a
headphone amplifier.
For some uses, such as in combination with an headphone
amplifier, you may need to mute the speaker outputs, but
not the pre outs. This can be achieved by changing the “Pre
Out Mute” setting. See “MENU FUNCTIONS” for guidance.
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LINE INPUTS
The amplifier is equipped with five single-ended, RCA
line inputs.
The gain of the line inputs can be changed to equalize
the volume of different signal sources. The range is
between 5 and 15 dB for input 1-4, and between 1
and 11 dB for input 5. The default gain for all inputs is
9dB. Please see “MENU FUNCTIONS” for guidance.
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BNC DIGITAL INPUTS
The DAC comes equipped with two electrical S/P-DIF
digital inputs. They support PCM (32-192kHz, 16-24
bit), MQA and DSD64 using DoP encoding.
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TOSLINK OPTICAL INPUT
The DAC comes equipped with two optical S/P-DIF
TOSLINK inputs. They support PCM (32-192kHz, 16-24
bit), MQA and DSD64 using DoP encoding.
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USB INPUT
The DAC comes equipped with one fully isolated, UAC
2, asynchronous USB input. It supports 32-192kHz,
16-24 bit PCM, MQA and DSD64/DSD128 using DoP
encoding.
Note: When playing music in PCM format from a com-
puter, the DAC supports sample rates up to 192kHz.
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POWER ON/OFF SWITCH
Toggle the switch to switch between fully off and
standby mode. When the amplifier is in standby mode,
the power consumption is less than 1W. When the
amplifier is on and idling, the power consumption is
less than 65W.
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POWER INLET (CAUTION!)
The amplifier accepts mains voltages from 100 to
240VAC 50-60Hz.
The power inlet accepts power cables with an IEC
60320-C13 female connector.
To ensure the best performance, please consult your
Aavik Acoustics dealer for a suitable mains cable.
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RS-232, FIRMWARE UPDATE
Only for the use by qualified service personnel.
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TRIGGER OUTPUT
The amplifier is equipped with one DC trigger output.
This can be used to power-on power amps, sub-woof-
ers and other equipment together with the amplifier.
When the amplifier is switched on (not in standby
mode), the trigger outputs will supply 12VDC. It can
supply up to 80mA.
REAR PANEL FEATURES
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