Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910251 CHAP 14 User Manual

DSP Functions
Filters
14-14
This combines two of the 2POLE HIPASS filters into one three-stage function. It has a rolloff of
6 dB per octave below the cutoff frequency. The parameters on the F1 FRQ control input page
affect the cutoff frequencies of both filters. The parameters on the F2 RES page affect the
resonances of the first filter. There will always be a slight extra boost of partials at the cutoff
frequency, even at low resonance settings. The parameters on the F3 SEP page shift the cutoff
frequency of the second 2POLE HIPASS, creating a separation between the cutoff frequencies of
the two filters. Positive values raise the cutoff frequency of the second 2POLE HIPASS, while
negative values lower it. If no separation is applied, there’s a 24 dB per octave rolloff below the
cutoff frequency. A variety of responses can be produced by adjusting the resonance and
separation settings.
-25
-20
-15
-10
-5
0
5
10
15
20
10 100 1000 10000 100000
Frequency in Hertz
Amplitude in dB
Cutoff frequency = C 5;
separation = 0;
resonance from -12 to 24 dB
24
-12
4-Pole Highpass Filter:
Resonance
-30
-25
-20
-15
-10
-5
0
5
10
10 100 1000 10000 100000
Frequency in Hertz
Amplitude in dB
Cutoff frequency = C 5;
resonance = 6 dB;
separation from -2 to +2
-2
+2
4-Pole Highpass Filter:
Resonance

Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910251 CHAP 14 Specifications

General

Type	Synthesizer
Polyphony	48 voices
Multitimbral	16 parts
MIDI	In, Out, Thru
Model	K2500
Document Type	Performance Guide
Revision	F
Part Number	910251
Chapter	14
Synthesis Type	V.A.S.T. (Variable Architecture Synthesis Technology)
Effects	Reverb, Chorus, Delay, EQ
Keyboard	76 keys (velocity and aftertouch sensitive)
Controllers	Pitch wheel, modulation wheel
Outputs	headphone output
Sequencer	16 tracks
Display	LCD
Memory	Expandable via RAM and ROM
Inputs	2 audio inputs