mi niDSP Ltd, Hong Kong /
/ Features and speci fi cations subject to change wi thout pri or noti ce
29
4.9
M
ODE COMBINATIONS
The combination of Channel mode and Amplifier mode determine how the amplifier is used. Table 2
summarizes the various mode combinations and the most typical use.
Table 2. Channel mode, amplifier mode, and typical usage
Channel
mode
Amplifier
mode
Typical usage
L
2-ch
Active crossover. Each output channel is connected to one speaker driver.
Typically, one channel is used for the tweeter and one for the woofer (or
woofers). A “FAST” configuration, where one channel is connected to a
fullrange driver and one to a woofer, is another common use for this
configuration.
R
2-ch
As above, but for the right speaker.
Mixed L&R
2-ch
This is not a very common configuration, but it could be used in a situation
where a subwoofer contains two drivers, and each is driven by one amplifier
channel, with the signal taken from the sum of the left and right input channels.
Stereo
2-ch
In this configuration, the PWR-ICE amplifier acts as a DSP-controlled stereo
amplifier. One use is when the PWR-ICE amplifier is used together with the
optional “back box” to create a standalone stereo amplifier. Another use can be
a pair of powered speakers, where a single PWR-ICE amplifier module is located
in one speaker box, and a speaker wire is taken across to a second speaker box
(that doesn’t contain an amplifier).
L
BTL
In this configuration, a single PWR-ICE amplifier acts as a high-power
“monoblock” amplifier for the left channel. Some possible uses are:
When multiple PWR-ICE amps are used in a single speaker, to power a
single driver (typically the woofer).
With the optional “back box,” as a standalone DSP-controlled high
power monoblock amplifier.
R
BTL
As above, but for the right speaker.
Mixed L&R
BTL
This is the most common configuration when the PWR-ICE amplifier is used to
power a subwoofer. The whole amplifier drives a single subwoofer driver with
the sum of the left and right input channels.
