Octave V 80 SE, Owner'S Manual

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1. DESCRIPTION V 80 SE
The V 80 SE is a totally new design. It has been developed for music
lovers who do not have the space for large pre- and power amps. The
V 80 SE is guaranteed to provide the same sonic experience as
separates. Nevertheless, as a standalone unit, it is equipped with every
feature you could need no matter how your hi-fi system is configured. We
have also included a number of forward-thinking features that are unique
in this amplifier class.
POWER AMP
BIAS
The power amplifier is a push-pull pentode system producing up to 130
W RMS each channel from 20 Hz to 80 kHz. The amplifier was designed
specifically for the V 80 SE, although its concept borrows heavily from
the MRE 220. This power amplifier enjoys
excellent load stability
, i.e.
neither the impedance nor the efficiency of the partnering loudspeakers
will affect the V 80 SE's sound.
The enhanced display functions of the
bias measurement facility
enable the owner to correctly set the bias current for the wide range of
output tubes that are compatible with the V 80 SE. Bias adjustment is
carried out using 3-turn precision regulators in conjunction with LEDs for
each of the four output tubes.
POWER MANAGEMENT
The high voltage systems and the heaters for the power and preamp
tubes form part of a logic-control chain. The power management system
also controls the electronic protection and power saving functionality
(Ecomode).
The electronic protection continuously monitors the
current through the power tubes and the operating voltage of the
driver stage.
This protects the unit from any overload situation including
power line surges (for example: speaker short circuit, faulty power tube,
lightning strike on the power line). The main purpose of the protection
system is to prevent damage to the amplifier; its secondary purpose it to
protect the power tubes from the harmful long-term effects of overload. At
the same time, it enhances user safety by preventing the occurrence of
critical conditions that could be harmful to the user.
DOUBLE
LONG SERVICE LIFE
Like other OCTAVE products, this amplifier is equipped with a double
safety system. This means that, if a component should fail and trigger the
electronic protection, a second, higher-level safety feature will always be
present. This technology has proven invaluable in recent years.
It has
enabled us to reduce our overall failure rate (excepting output
tubes, which we are unable to control 100 percent) to virtually zero.
OCTAVE equipment is designed for achieve a service life of 10 to 15
years without needing to be serviced.
This is particularly important
feature for a tube-based amplifier, as many preconceptions still exist with
regard to the technology's durability and long-term stability.