SigmaStudio Project Details

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Channel Divider

Download Page
→ https://github.com/freeDSP/FreeDSP_INTEGRA/tree/main/SigmaStudio

Speaker Output Configuration

Channel	Speaker
1	LEFT WOOFER
2	RIGHT WOOFER
3	LEFT TWEETER
4	RIGHT TWEETER

Sweepable Crossover

Potentiometer Control

POT	Parameter
RV1	CROSSOVER FREQUENCY ADJ
RV2	DELAY TIME CONTROL

Calculate the index value for Crossover-Frequency.

Low-End Frequency = FL [Hz]
High-End Frequency = FH [Hz]
Number of Curve Steps = N [steps]

Index	Crossover-Frequency	50Hz-500Hz(16steps)	2kHz-20kHz(16steps)
0	FL	50Hz	2.0kHz
1	F1 = FL * (FH/FL)^(1/(N-1))	58.3Hz	2.3kHz
2	F2 = F1 * (FH/FL)^(1/(N-1))	68.0Hz	2.7kHz
3	F3 = F2 * (FH/FL)^(1/(N-1))	79.2Hz	3.2kHz
4	F4 = F3 * (FH/FL)^(1/(N-1))	92.4Hz	3.7kHz
5	F5 = F4 * (FH/FL)^(1/(N-1))	107.7Hz	4.3kHz
6	F6 = F5 * (FH/FL)^(1/(N-1))	125.6Hz	5.0kHz
7	F7 = F6 * (FH/FL)^(1/(N-1))	146.4Hz	5.9kHz
8	F8 = F7 * (FH/FL)^(1/(N-1))	170.7Hz	6.8kHz
9	F9 = F8 * (FH/FL)^(1/(N-1))	199.1Hz	8.0kHz
10	F10 = F9 *(FH/FL)^(1/(N-1))	232.1Hz	9.3kHz
11	F11 = F10 * (FH/FL)^(1/(N-1))	270.6Hz	10.8kHz
12	F12 = F11 * (FH/FL)^(1/(N-1))	515.5Hz	12.6kHz
13	F13 = F12 * (FH/FL)^(1/(N-1))	367.8Hz	14.7kHz
14	F14 = F13 * (FH/FL)^(1/(N-1))	428.8Hz	17.2kHz
n	Fn = F(n-1) * (FH/FL)^(1/(N-1))	<--	<--
N-1	FH = F(N-2) * (FH/FL)^(1/(N-1))	500Hz	20kHz

LR8 2way Channel Divider

• 48dB/oct Cut-off
• Variable Cross-over Frequency (50Hz to 500Hz, 500Hz to 5kHz)
• Optional Parametric EQ Feature

LR4 2way Channel Divider

• 24dB/oct cut-off
• Variable Cross-over Frequency (50Hz to 500Hz, 500Hz to 5kHz)
• Optional Parametric EQ Feature