Meridian Speaker - Manual
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Table of Contents:
- Page 2 – Meridian Loudspeakers: The DSP Path; The Meridian Papers - 1
- Page 5 – Bass Extension; x K
- Page 6 – Electronics
- Page 7 – The Digital Link; Digital; The DSP Dimension; “Where am I sitting?”
- Page 8 – “What is; “Human-sized” speakers; ...Dither is not only required when a
- Page 10 – Meridian Audio Limited
In each article in this series, we will be
looking at a different aspect of the hi-fi
signal chain – from source to speaker. In
view of its importance in the overall
reproduction of the sound, we are first
going to consider what happens at the
end of the line – the amplification sys-
tem and the loudspeakers themselves,
for it is here that Meridian has very
much charted its own course among
consumer audio manufacturers, coming
up with a solution that is both elegant,
efficient and capable of extremely high
audio quality.
The traditional approach
The traditional method of designing a
hi-fi system has been with us for a long
time, and has hardly changed over the
years. Signal from a source – such as a
CD player – is fed into a preamplifier or
controller, and from there at line level to
an amplifier.
From this central cluster of equipment,
the now high-level signal is fed via
extensive cables to the loudspeakers
themselves.
The Meridian Papers - 1
Meridian Audio has taken an almost
unique course in the design of its hi-fi
systems, and particularly in its
loudspeaker design, where the signal
remains in the digital domain until the
very last moment, and the loudspeakers
include digital crossovers and signal
processing.
In the first of a series of articles on
Meridian audio products and technology,
Richard Elen looks at the company’s DSP
loudspeaker philosophy.
Meridian’s top-of-the-line DSP8000 speakers,
the essence of high performance
EXTERNAL
POWER AMPLIFIER
LOUDSPEAKER
ENCLOSURE
LF DRIVER
CABLES
HF DRIVER
PASSIVE CROSSOVER
Fig. 1: The conventional arrangement of a sin-
gle power amplifier driving a two-way loud-
speaker system with a passive crossover.
Meridian Loudspeakers: The DSP Path
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Summary
If you examine the vast majority of cur-rent – and past – hi-fi amplifiers andspeakers, you will find the same story: a single channel of amplifi-cation handles the full audible frequencyrange of the system. A single pair ofcables carries this signal to the loud-speaker cabinet, and inside the enclo...
To give an example from Meridian’s product line, the DSP6000 includes four channels of 70W amplification.This is equiva- lent to about 1kW driving a conventional passive system. It is evident from these comparisonsthat an active system can produce sur-prisingly high levels from a significantlysmalle...
page 6 Meridian Loudspeakers: The DSP Path The Meridian Papers - 1 The electronics inside Meridian’s DSP8000 system Power supply 5 x Power Amplifiers, one per set of drivers Crystal clocks Microprocessor Programmable Logic arrays Digital to Analogue Converters (four channels) Digital Signal Processi...
