Blaze PowerZone Connect 122D Installation Manual & User Manual page 14

Diagram 5J
Speaker Preset applied
• The FIR preset menu enables FIR (Finite Impulse Response)
based equalization filter coefficients generated by external
speaker measurement software to be imported and applied
to individual amplifier outputs.
Note: FIR coefficient files in either .csv or .txt format can be
imported.
• The Driver Alignment preset menu enables delay to be
applied to individual amplifier outputs.
• The Polarity preset menu enables the polarity of individual
amplifier outputs to be reversed.
• The Limiter preset menu enables signal limiting to be
engaged or bypassed on individual amplifier outputs. Clip
limiting, Peak limiting and RMS limiting can be individually
or collectively engaged. The Clip limiting function offers
Fast and Normal response time options. The Peak limiting
function can be set to either Automatic or Manual
parameter values. The RMS Limiter has default parameter
values that can be adjusted but has no automatic option.
Note: It is strongly advised that if an amplifier is driving low
impedance loads (<4Ω) the Clip Limiter should be engaged and set
to Fast.
Configuration
Note: In automatic mode, the peak limiter parameters adjust
automatically in response to Crossover & Gain high-pass filter
settings.
• The Output Mode preset menu enables individual
amplifier outputs to be switched off or configured for Lo-Z
or Hi-Z modes. In Hi-Z modes, a high-pass filter can also
be configured and applied to the output. The number of
outputs available will depend on the amplifier model, input
setup and zone setup. For example, a two output amplifier
will have two outputs available if Lo-Z mode is selected but
only one output available if Hi-Z mode is selected.
Note:: Use of a high-pass filter with Hi-Z mode loudspeakers is useful
to avoid the possibility of distortion caused by low frequency line
transformer saturation. Begin with the default filter setting of 70Hz.
If low frequency distortion is still audible, increase the frequency
setting one step at a time until the distortion is no longer audible.
Speaker Preset parameter adjustment
Diagram 5K