Infinite V2
Notes
Bridge Mode
Connect to input 1 only and use the two CH1 speakon outputs or both + binding posts.
Use +1 for signal + and +2 for signal - Minimum impedance in bridge mode must be 4
ohms, i.e. one 8 ohm load from each speakon. The amplifier is mono when running in
bridge mode and both CH1 speakons output the same signal. When using the binding
posts for bridge mode, CH 1 + terminal is signal + and CH2 + terminal is signal -
Parallel Switch
Input 1 is linked to input 2. Connect to input 1 or input 2, the same signal will output
from both CH1 and CH2 outputs. Each channels level is set with its own level control.
Note that parallel operation on Infinite amplifiers is not like the parallel mode on some
amplifiers that allow you to drive into very low impedances. Parallel mode on Infinite
series amplifiers makes both inputs receive the same signal.
VSP Velocity Sense Protection
All version 2 Infinite amplifiers are equipped with velocity sensing protection.
The VSP circuit monitors back EMF and will attenuate the output for a very brief period
if the amplifier detects over excursion or potential damage to a speaker.
If very severe overload conditions are detected and speaker failure is imminent, the
amplifier will mute its output for a brief period. Reducing the amplifiers output level will
stop the protection circuit from muting the output in this situation.
Please note that the VSP circuit can only assist with protecting your speakers.
It in no way guarantees complete protection against any component failure and safe
working practices should always be followed with regard to matching amplifier output
levels to speaker input ratings.
Onboard Filter Network
The onboard filter network allows both Hi and Lo pass filters to be set on individual
channels. A typical arrangement might be to set a Lo pass filter on channel 1 and use it
to drive bass speakers and to set a Hi pass filter on channel 2 and use it to drive
midtop speakers. The frequency select switch would be used to set the crossover
frequency in this case. The crossover frequency can be 90Hz, 120Hz or 160Hz.
Both Hi and Lo sections of the crossover are also output from the 4 rear panel jack
sockets, permitting the onboard crossover to feed other amplifiers in the system. The Hi
outputs are from the Hi Pass section and the Lo outputs are from Lo Pass section. This
allows for the amplifier with the crossover to drive bass speakers and other amplifiers
to drive midtop speakers, or vice versa. Note that the crossover outs, output both Lo
and Hi crossover sections irrespective of what the amplifiers channel filters are set to.
Page 8
Reference Manual
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