3-Way Active Crossover with Linearity Phase gr

3-Way Active Crossover with Linear-Phase Response

3w_cross_lin_phase_1.gif (16151 bytes)

�� . �� . �� . �� 1] �� 2] � �� 3]�� . �� S. Lipshitz �� J. Vanderkooy �� JAES (Journal Audio Engineering Society). �� . � �� , �� , �� .

Part List

R1-16=100Kohms	R23-24-25-26=37.5Kohms [33K+4.7K]	C12-13-20-21-22=1nF 100V MKT
R2-3-4-5=56Kohms	R30-31-32-33-34-35-36=10Kohms	C19-23-24-30-31-32-33=47nF 100V MKT
R6-27=37.5Kohms[33K+4.7K]	R37-38-39-40-41-41=10Kohms	C25-26-27-28-29=1nF 100V MKT
R8-9-12-13-14=10Kohms	R42-43-44=47Kohms	C36-37=1uF 100V MKT
R10-28=75Kohms (150K//150K)	R45-46=47 ohms	C38-39=47uF 25V
R11-29=NC	TR1-2-3-4=47Kohms trimmer or pot.	IC1=TL071
R15=56.3Kohms	C1-34-35=2.2uF 100V MKT	IC2-3-4-5-6-7=TL072-NE5532
R17=12Kohms	C2-3-7-8-14-15-18=47nF 100V MKT
R18-19-20-21-22=10Kohms	C4-5-6-9-10-11-16-17=10nF 100V MKT	All the rsestors is 1/4W 1% metal film

3w_cross_lin_phase_2.gif (6620 bytes)

�� block �� [Fig.2] �� , -24db/oct �� . �� 1 (�� F1) �� 2 (�� F2) �� . �� 1 �� LPF1, �� 2 �� LPF2 �� . �� [IC7A-B] �� , �� . �� . � �� +/-15V. � �� Linkwitz �� -6db [Fig.3].

3w_cross_lin_phase_3.gif (14537 bytes)

�� [Fig.4] �� . �� 200�� 3��, �� . �� Elektor. �� , �� S. Lipshitz �� J.Vanderkooy �� JAES.

A Family of Linear-Phase Crossover Networks of High Slope Derived by Time Delay Vol. 31, Number 1 pp. 2 (1983) Author: Stanley P. Lipshitz and John Vanderkooy Abstract: The design of linear-phase crossover networks has until now necessitated the use of crossovers, at least one of whose outputs suffers from either frequency response ripple in the passband or low rolloff rate in the stopband. It may be desirable, at leas
Use of Frequency Overlap and Equalization to Produce High-Slope Linear-Phase Loudspeaker Crossover Networks Vol. 33, Number 3 pp. 114 (1985) Author: Stanley P. Lipshitz and John Vanderkooy Abstract: It has been shown that linear-phase crossovers of high slope can be synthesized by subtracting a suitable low-pass output from a time-delayed version of the input signal. It would be nice to be able to avoid the expense of such an electronic time-delay
2-Way Active Crossover with Linear Phase Response

Sam Electronic Circuits 11/02

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