Introduction

The AC12 allows you to connect up a system consisting of both the latest Meridian SpeakerLink products, and earlier Meridian products using Meridian Comms over either 5-pin DIN connectors or BNC connectors.

The AC12 is a passive component and so is completely self- contained; it does not need a power supply or mains connection.

Back panel connections

Meridian

SpeakerLink

connection

S/PDIF

SpeakerLink

Master Comms

Slave Comms

RS232

S/PDIF

Master

Slave

RS232 for

digital audio

DIN and BNC

DIN and BNC

computer

connection

Comms

Comms

control

 

 

 

 

1. 2-channel SpeakerLink to non-SpeakerLink loudspeakers

Meridian 808.2 CD Player

 

 

 

 

DSP loudspeaker – Master

DSP loudspeaker – Slave

 

 

AC12

 

 

DIGITAL

MERIDIAN

DIGITAL

MERIDIAN

 

 

 

 

 

MERIDIAN

 

 

 

 

 

COMMS

 

COMMS

 

SPEAKER MASTER

SLAVE

 

 

 

 

 

SPEAKERLINK

 

 

INPUT INPUT OUTPUT

INPUT OUTPUT

INPUT INPUT OUTPUT

INPUT OUTPUT

S/PDIF

LINK COMMS

COMMS

RS232

 

 

 

 

 

 

 

 

 

M lead

 

 

S lead

 

2. 2-channel non-SpeakerLink to SpeakerLink loudspeakers

Meridian CD Player or Control Unit

 

DSP loudspeaker – Master

DSP loudspeaker – Slave

 

 

AC12

MERIDIAN

MERIDIAN

 

 

 

DIGITAL OUTPUT

COMMS

 

SPEAKERLINK

SPEAKERLINK

 

 

 

Use this application to connect a recent Meridian source with a SpeakerLink output to a pair of Meridian Digital loudspeakers that do not have SpeakerLink.

Connect the SpeakerLink output from the source to the SpeakerLink input on the AC12.

Connect the Master Comms and S/PDIF connections on the AC12 to the master loudspeaker using a Meridian M lead.

Use the DIN Comms or BNC Comms as appropriate.

Connect the loudspeakers together using a Meridian S lead.

Use this application to connect a Meridian source that does not have a SpeakerLink output to a pair of Meridian Digital loudspeakers with SpeakerLink.

Connect the digital output from the source to the S/PDIF input on the AC12, using a digital coax cable.

Connect the Comms connection from the source to the Master Comms connection on the AC12, using a Meridian C5 (master to master) lead.

Alternatively, if the product has BNC comms you can connect it to the AC12 Master Comms BNC socket.

Acknowledgements

Meridian is a registered trade mark of Meridian Audio Ltd.

SpeakerLink is a trade mark of Meridian Audio Ltd.

Copyright © 2010 Meridian Audio Ltd.

Part number: P83402

Designed and manufactured in the UK by Meridian Audio Ltd. Meridian Audio reserves the right to make changes and improvements to any of the products described in this document without prior notice.

This guide was produced by: Human-Computer Interface Ltd, http://www.interface.co.uk/

Sales and service in the UK

Meridian Audio Ltd

Latham Road

Huntingdon

Cambridgeshire

PE29 6YE, England

Tel +44 (0)1480 445678

Fax +44 (0)1480 445686

Sales and service in the USA

Meridian America Inc 8055 Troon Circle Suite C

Austell GA30168-7849, USA

Tel +1 (404) 344 7111 Fax +1 (404) 346 7111

Visit us on the Web: http://www.meridian-audio.com/

 

SPEAKER MASTER

SLAVE

 

INPUT OUTPUT

INPUT OUTPUT

 

S/PDIF LINK COMMS

COMMS

RS232

 

 

 

Digital coax lead

C5 lead

SpeakerLink lead

 

SpeakerLink lead

 

 

 

3. 2-channel non-Meridian source (eg PC) to SpeakerLink loudspeakers

Non-Meridian Source

 

 

 

 

DSP loudspeaker – Master

DSP loudspeaker – Slave

 

 

AC12

 

 

 

MERIDIAN

MERIDIAN

 

 

 

 

 

 

DIGITAL OUTPUT

RS232

 

 

 

 

SPEAKERLINK

SPEAKERLINK

SPEAKER MASTER

SLAVE

 

 

INPUT OUTPUT

INPUT OUTPUT

 

 

 

 

 

 

S/PDIF LINK COMMS

COMMS

RS232

 

 

 

 

 

 

Digital coax lead

 

RS232 lead

 

SpeakerLink lead

SpeakerLink lead

 

 

 

 

 

Connect the SpeakerLink connector on the AC12 to the loudspeaker you have configured as master using a SpeakerLink lead.

Connect the loudspeakers together using SpeakerLink leads.

Use this application to connect a non-Meridian source, such as a PC, to a pair of Meridian Digital loudspeakers with SpeakerLink.

Connect the digital output from the source to the S/PDIF input on the AC12, using a digital coax cable.

Connect the SpeakerLink connector on the AC12 to the loudspeaker you have configured as master using a SpeakerLink lead.

Connect the loudspeakers together using SpeakerLink leads.

You can connect an RS232 null-modem cable between the PC and the AC12 to provide PC control of the DSP loudspeakers using the Meridian Control Window program; for more information see the Meridian Configuration Program Guide.

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Meridian Audio AC12 manual Introduction, Channel SpeakerLink to non-SpeakerLink loudspeakers

AC12 specifications

Meridian Audio, a pioneer in high-performance audio systems, has unveiled the AC12, a cutting-edge digital signal processor that promises to redefine the listening experience for audiophiles and casual listeners alike. As the crown jewel in Meridian's lineup, the AC12 combines advanced technology with unparalleled performance, establishing itself as a formidable component for music lovers and home theater enthusiasts.

At its core, the Meridian AC12 boasts a state-of-the-art digital signal processing engine, engineered to deliver audio with exceptional clarity and precision. This DSP is equipped with Meridian's proprietary algorithms, which enhance sound staging and imaging, allowing users to experience their music as it was intended by the artist. With 24-bit/192kHz audio resolution, the AC12 captures every detail, ensuring a faithful reproduction of even the most complex soundscapes.

One of the standout features of the AC12 is its fully balanced architecture. This design minimizes noise and distortion, resulting in cleaner audio output. Additionally, the AC12 includes digital input options, such as USB, Ethernet, and S/PDIF, making it versatile enough to connect to a range of audio sources, from streaming services to high-definition Blu-ray players.

The AC12 is also equipped with Meridian's unique speaker calibration technology, which analyzes the characteristics of the listening environment and automatically adjusts the output for optimal performance. This feature accounts for room acoustics, ensuring that every listener can enjoy immersive sound, regardless of their seating position.

With the AC12, users can take advantage of Meridian’s exclusive Room Correction technology. This innovative feature compensates for unwanted echoes and reflections within a listening space, allowing for a more consistent and enjoyable audio experience. Furthermore, the AC12 supports Meridian’s MQA (Master Quality Authenticated) technology, enabling audiophiles to stream high-resolution audio without compromising quality.

Lastly, the AC12 is built with an elegant, user-friendly interface that makes operation seamless. Its integration with Meridian’s control app empowers users to manage their audio environments effortlessly. Whether for listening to music or enhancing movie soundtracks, the Meridian AC12 embodies a commitment to audio excellence, merging traditional craftsmanship with modern technology to create a listening experience that is truly unparalleled.