Specifications

10) Polarity - The Rogue 88 amplifier is a non-inverting amplifier
(positive signal in gives positive signal out) so, for best sound,
care should be taken to ensure correct polarity at the speaker
terminals. If your preamplifier is also non-inverting, then connect
the positive (+) outputs of your power amplifier to the positive
(+) terminals of the loudspeakers and the negative (-) outputs to
the (-) negative loudspeaker terminals. If your preamplifier is
inverting, then connect the positive outputs (+) of you power
amplifier to the negative (-) loudspeaker terminals, and the
negative outputs (-) to the positive (+) loudspeaker terminals. If
you are unsure whether your preamplifier is inverting, check the
owners manual or contact the manufacturer. If all else fails, try
both connections and listen to which sounds better (do this using
several different recordings as not all recordings are made with
correct phase).
11) Amplifier Location - The Rogue 88 amplifier is an enclosed tube
design with forced air ventilation and cooling. This cooling has
been designed and tested to ensure long term reliability and safety
of the unit. The amplifier should be placed in such a way that this
airflow is not impeded. See Figure 7.
WARNING - All vent locations should have 6 to 8 inches of
free space to allow for adequate cooling. Failure to ensure
this could degrade unit reliability.
WARNING - This unit should not be placed in an enclosed
shelf where hot air from the exit vent is recycled back into
the intake vent.
6) Select Mode - The Rogue 88 features a user selectable option of
running in either Triode or Ultra-Linear modes. Some listeners
prefer pure triode operation, however, it does limit the power
output of the amplifier to approximately 40 watts per channel.
Ultra-Linear operation offers the amplifier’s full rated output
power of 60 watts per channel. The user is encouraged to try
b
oth modes and determine their own preference.
WARNING - If the unit has been powered up, you must
turn off the power at the switch and wait at least one hour
before disconnecting the electrical cord. After doing so, the
unit may be unplugged and the top cover removed. This
time is required for dangerous voltages to dissipate.
To switch modes, use a nonconductive screwdriver to flip the 4
switches shown in Figure 4 to the chosen settings. The unit is
shipped from the factory in Ultra-Linear mode.
Caution - Always ensure that all switches are set alike, in
either UL or Triode Mode
Ultra-Linear /
Triode Switch
Rogue Eighty-Eight Owners Manual 8 Rogue Eighty-Eight Owners Manual 5
Figure 4