Journal Forum

Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015

Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
1 comment

The Measurement and Calibration of Sound Reproducing Systems - July 2015

Access Journal Forum

AES E-Library

A Family of Circuit Topologies for the Linkwitz-Riley (LR-4) Crossover Alignment

Document Thumbnail

A family of LR-4 circuit topologies is presented that is of direct application to the audiophile class of reproduction systems where system transparency and cost-effective design is paramount. Methodologies including quasi-passive and active realizations are described, where the emphasis is to establish both high- and low-pass filter structures using just four reactive elements and without the need for all-pass compensation. New structures are identified that achieve optimum matrixing without redundant reactive elements and a technique employing a low-feedback, transconductance amplifier is proposed. A design example of a three-way prototype using eight reactive elements is discussed, where loudspeaker compensation includes the use of a mid-range driver with a Butterworth if alignment.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society