A Loudspeaker and Room Interaction Tuning Session with Manny LaCarrubba

Manny LaCarruba uses free software to measure and "tune" the club Linkwitz LX521.4 speakers to perform better in the room at CHRS. This is a working session as Manny creates a better acoustic presentation through the intricacies of speaker placement, acoustical measurement, and digital techniques to balance our speakers sound in a challenging room. Manny LaCarrubba is an acoustical consultant and loudspeaker designer with 30+ years of experience spanning professional recording studios, architectural acoustics, loudspeaker invention, and high-end residential and commercial audio systems. Manny is renowned for integrating loudspeaker/room interaction, wide-dispersion waveguide technology, and DSP-based system calibration to achieve consistent, reference-quality sound. A former Chief Engineer at one of the world’s most influential recording studios, Manny is co-inventor of patented loudspeaker technologies adopted by major manufacturers. https://grimanisystems.com/ Manny's Bio https://secretsofthepros.com/mannylac... https://grimanisystems.com/about-us/m... The speakers used in this presentation. https://www.linkwitz.com/lx521 The measurement software used https://www.roomeqwizard.com/ The hardware DSP crossover and EQ used https://www.minidsp.com/products/ht-s... About Us The Audiophile Foundation is a 501c3 organization completely run by volunteers and supported by donations and membership. If you like our publications, events and/or content we provide, please consider becoming a member and/or donating so we can continue our mission to provide non-biased information and preserve the legacy of high end audio. Hyperlink Links Becoming a member - https://audiophilefoundation.org/cont... Donating - https://audiophilefoundation.org/cont... _ Disclaimer: The information and views expressed in the multimedia content (“Video Content”) posted represents the views and opinions of the presenters and participants of such Video Content and does not necessarily represent the views or opinions of the Audiophile Foundation (“AF”). The mere appearance of Video Content on the Site does not constitute an endorsement by AF or its affiliates of such Video Content. The Video Content has been made available for informational and educational purposes only. AF does not make any representation or warranties with respect to the accuracy, applicability, fitness, or completeness of the Video Content. AF does not warrant the performance, effectiveness or applicability of any sites listed or linked to in any Video Content. AF hereby disclaims any and all liability to any party for any direct, indirect, implied, punitive, special, incidental or other consequential damages arising directly or indirectly from any use of the Video Content, which is provided as is, and without warranties. This presentation is protected by U.S. and international copyright laws. Reproduction or distribution in any form without written permission from the Audiophile Foundation is strictly prohibited. © 2026 Audiophile Foundation. All rights reserved. Chapters: 00:00 - Intro 01:11 - The Basics of Loudspeaker Calibration 10:50 - Measuring a Speaker's Response 20:34 - Capturing a Speaker's Response with REW 1:22:00 - Matching the Other Channel 1:41:42 - The Audience Listens to the Results 1:59:44 - Q & A