User Guide

Page 17UG10637-1.0 - Inca 500 User Guide V1.0

5.3.4 Speaker Preset Menu Parameters

• The Crossover & Gain preset menu enables high or low-pass crossover ﬁlters and gain

adjustment to be applied to individual ampliﬁer outputs.

• The Speaker EQ preset menu enables parametric equalization to be applied to individual

ampliﬁer outputs.

• The FIR preset menu enables FIR (Finite Impulse Response) based equalization ﬁlter

coecients generated by external speaker measurement software to be imported and

applied to individual ampliﬁer outputs.

Note: FIR coecient 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 applied to individual ampliﬁer

outputs. Clip limiting, peak limiting and RMS limiting can be individually or collectively

engaged. The Peak limiter can be set to either automatic or custom parameter values.

The RMS limiter has default parameter values that can be adjusted but has no automatic

option.

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

o 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.

5 Conﬁgurations