Octave Black Box User manual

Black Box

Description
OCTAVE, with the Black Box technology, offers an instrument to
optimizing the OCTAVE amplifier in respect to the speaker. This
flexibility is a unique feature of the OCTAVE brand.
The dynamic and tonal stability of an amplifier is strongly dependent
upon the stability and capacity of the power supply, therefore the
Black Box and Super Black Box were developed as external up-
grades to the OCTAVE amplifiers’ power supply storage capacitors
by increasing their capacitance by a factor of 4 (Black Box) or 10
(Super Black Box), respectively. This is a tremendous benefit if the
speaker is difficult to drive. Loudspeaker efficiency is made less criti-
cal, while the amplifier is enabled to handle speakers with minimum
impedances as low as 2 Ohms.
The power supply capacitance increase realized via use of the Black
Box or Super Black Box stabilizes current delivery and reduces the
impedance interaction of the load. This improves dynamic range,
separation, depth, soundstage size and articulation, rendering the
musical reproduction clearer throughout the entire frequency range.
The amplifier remains unaffected by mains variations and interfer-
ences due to the noise filtering characteristics of the capacitors.
Operation
Black-Box
Indicator LED Hi
g
h-current plu
g
The LED illuminates continuously when the power amplifier is on.
The LED goes out when the protection circuitry trips. This is normal,
as the protection circuitry cuts the power to the amplifier.

Specification
Dimensions 170 x 97 x 257 mm (W x H x D)
Weight 2.5 kg
Connection cable Length: 70 cm.
Longer lengths available upon request.
Connecting to the amplifier
Important! Before connecting the Black Box, switch the unit
off using the power switch and wait for 1 minute.
When inserting the connector, guide the anti-rotation lug
carefully into the mating recess in the socket.
When you switch the amplifier on, the LED on the front panel
of the Black Box will illuminate.
Note: The LED on the Black Box goes out when the
amplifier's electronic protection circuitry is activated, as the
protection circuitry shuts off the power to the amplifier.
Should you wish to disconnect the Black Box, switch the
amplifier off first and wait until the LED on the Black Box
has gone out.
Safety instructions and partnering amplifiers
Do not open the case
Because of the dangerously high voltages inside this unit, only
qualified personnel should open the case.
Location
OCTAVE equipment is designed strictly for use in a dry domestic
environment. Do not use it in the open air or in damp
environments! Never place plants or liquid-filled containers on
the equipment. Care should be taken to avoid objects falling into
or liquids being spilled into the case. Should this happen,
remove the mains plug immediately and have your amplifier
checked by a qualified service technician.

This instructions you can also find in the
owner's manual of your amplifier.
OCTAVE Audio, Germany
www.octave.de