Meridian America DSP33 - Manual (Page 7)

2
Introduction
The DSP33 Digital Loudspeaker System incorporates the result
of several years of research and development into innovative
technologies.
Digital Signal Processing
Digital Signal Processing, or DSP, is a technique pioneered by
Meridian in hi-fi products for achieving extremely accurate
reproduction of audio signals using high-precision mathematical
processing.
DSP allows sophisticated processing to be performed without
any of the cumulative noise or degradation that inevitably
occurs, even with high-quality analogue circuitry. In addition, the
signal improvement techniques incorporated in the DSP33
would be virtually impossible to implement in analogue circuitry.
The DSP33 takes advantage of DSP for several different
functions:
❍ To remove timing variations from the incoming digital signals
(de-jittering).
❍ To split the frequency band between the treble and bass
drivers (crossover).
❍ To perform filtering or adjustment of the frequency response;
eg treble or bass.
❍ To provide volume control to 48-bit precision.
❍ To provide bass extension by boosting the bass at moderate
levels to take full advantage of the capabilities of the drive
units.
If you are using the DSP33 Digital Loudspeaker System with a
digital source, such as CD or DVD, the signals remain in digital
form until the last possible stage.
DSP33 drivers
Each DSP33 loudspeaker uses two parallel 125mm (5") bass
drive units. These incorporate a cast alloy chassis and a carbon
fibre cone, and have a very large magnet which provides
excellent drive and control. Combined with the Meridian’s active
bass extension technology, they provide surprisingly rich, deep
bass, quite unprecedented for this size of cabinet.
The treble unit is a very high quality 25mm (1") aluminium dome
with a Neodymium magnet and a protective grille. It is extremely
well matched to the woofer, and also tonally very compatible
with the other speakers in the Meridian range.
The DSP33 Digital Loudspeaker System