7
SURROUND BYPASS
Please refer to chapter
5.3
before use INPUT 5 as a SURROUND
BYPASS.
5. 3 Using the 5
th
input SURR. as a SURROUND BYPASS
The so-called SURROUND BYPASS of ACCUSTIC ARTS® is a configuration option that allows the signal of a
surround processor to be "looped through" without further amplification by the POWER I. That is, the
volume of this signal is controlled by the external processor or preamp and not by this amplifier. This
makes it possible to combine a high-end audio system with a home cinema system and this without loss
of quality.
The POWER I is in this case like a "pure" amplifier to see.
In the factory setting, the 5th input (SURR. / INPUT 5) is designed as a pure high-level input, comparable
to the unbalanced inputs 3 and 4.
Important NOTE:
When using the SURROUND BYPASS input, do not connect "standard equipment" such as CD players,
etc., because the volume of this input can not be adjusted. This means that an applied signal is
transmitted at full volume to the speakers or via the preamp output. This can destroy the amplifiers
or speakers.
5. 4 Use of the PRE OUT
As mentioned before, you can use the POWER I in principle as a preamplifier to control another,
additionally connected power amplifier or an (active) subwoofer. Connect the preamp output PRE-OUTPUT
to the corresponding input of your power amplifier. In the menu control, note that this output is to be set
as PRE-OUT [menu 4, setting (1)].
Please use only high-quality interconnect cables. This is the only way to ensure that the sound quality of
the POWER I is fully exploited.
5. 5 Use of the headphone output PHONES
On the front panel of the POWER I is the headphone jack (6.3 mm jack). This is marked with PHONES
(abbreviation for headphones = headphones). The headphone jack is covered with a chrome button, which
is held by a pin in the front panel. This cover not only looks good, but also prevents the ingress of dust
when not in use.
Via the menu control, see point 7.7, the headphone output can be switched on and off. So that you can
listen to music undisturbed via headphones, the loudspeakers can be switched off via the menu control,
see section 7.8.
5. 6 Loudspeaker cables
For each channel the POWER I has one pair of high quality loudspeaker terminals. Please use only high
quality loudspeaker cables. This is the only way to ensure that the sound quality of the power amplifier is
fully exploited.
Loudspeaker cables from ACCUSTIC ARTS
®
are excellently matched to the needs of the POWER I. But
naturally other high-quality brand name products may also be used.
To connect the cables to the power amplifier or loudspeakers if possible use high quality terminal ends or
banana plugs
and avoid connecting bare litz wires (except with OFC copper cables) since these corrode
and so restrict the signal flow.
