Tag Archives: Meridian

A survey of Room Correction devices – Meridian, TacT, Lyngdorf

In the next couple of articles I’m going to create a comprehensive directory of the room correction products available on the market and assess them against the functional criteria that have been explained in the last two articles (here and here). Today I’m covering Meridian (the 861 and G68 surround processors), TacT (including the 2.2XP) and Lyngdorf. Future articles will examine Audyssey, Velodyne and DSPeaker.

Stereophile magazine’s top 6 Room Correction and EQ devices

According to Stereophile magazine, the top (‘A’ ranked) room correction or room EQ devices are the: Audyssey Sound Equalizer; Meridian 861 with MRC room correction; Rives Audio sub-PARC / PARC; SVSound AS-EQ1; Velodyne SMS-1 and the Z-Systems RDP-1 Reference. This article explores the pros and cons of each device from a purely functional perspective…here is an excerpt from the section on the SVSound AS-EQ1: “Designed for use with either single or dual subwoofers, the AS-EQ1 is based on a implementation of Audyssey’s DSP room EQ code. Plug in the included measurement microphone and install the custom Windows based software onto your computer and you are ready to go! Because it uses Audyssey code many locations in the room are measured (up to 32) before the correction filters are generated. This makes it particularly suitable for use in a multi-seat home theater where the bass response and therefore degree of correction required will vary significantly from seat to seat”

Room Correction: A Primer

Much confusion still exists about what a room correction product does, what problems it can (and cannot) solve and therefore its ‘place’ in a modern high quality sound reproduction system. Part of the challenge of understanding room correction is that it requires a reasonable level of understanding of sound quality, acoustic science, acoustic measurement and psychoacoustics (how humans perceive sound). The majority of the articles I have read online or in print magazines do not cover the fundamentals in enough depth to allow the curious and committed reader a chance to understand room correction on anything more than a cursory level. By the end of this article I hope that you will have learnt enough to judge for yourself what room correction can and cannot do and how best to apply it in the context of a world class music or home theater system.

The Meridian approach to Room Correction

Meridian’s approach is one of the best I have found (both sound quality wise and theoretically) for electrically correcting the problems caused by a room. The Meridian digital room correction system follows the same high level process as other devices such as those by TacT and Audyssey (measure, compare, generate and then apply correction filters) […]