DSP520.2 In-Wall Digital Active Loudspeaker
Lifelike and Spacious Sound
Powered by Meridian’s exclusive ‘CLASS-M’ DSP engine and integrated with ‘DYNAMIC’ Hi-Res amplifiers, the DSP520.2 is perfect for delivering Meridian's renowned audio quality discreetly in any living or cinema room and the added L+R feature also makes it a powerful soundbar solution. Incorporating the latest audio enhancing technologies from Meridian, including Enhanced Bass Alignment (EBA) and Centre Elevation, the DSP520.2 provides incredibly lifelike and spacious sound with unmatched levels of performance.
Key Features
All-new quad-amp DSP design with 4 powerful amplifiers delivering over 100W RMS into 8 Ohms, per drive unit.
Full range sound, bass extension down to 40Hz and 114dB @1m.
Stackable for high SPL systems >105dB at 9.4m in 5 stack configuration.
Optimised DSP for horizontal or vertical mounting, ideal for sound-bar or centre channel usage.
WE ARE THE MASTERS OF DIGITAL SIGNAL PROCESSING
Technologies
With its extensive Research and Development programme Meridian has pioneered the development of a host of innovative audio technologies many of which feature in today’s Meridian products.
DSP Loudspeakers
The traditional setup – amplifiers driving passive loudspeakers – is inefficient, limiting sound quality. Meridian loudspeakers contain a complete, matched audio system with efficient DSP crossovers, multiple DACs and driver-specific amplifiers, giving higher overall quality, less power use, and the performance of a traditional loudspeaker eight times the physical volume.
SpeakerLink
Traditional audio systems often require large, expensive cables to maintain their performance. Meridian's SpeakerLink uses an “Ethernet style” cable that delivers pristine digital sound and control down a single cable between Meridian components. The result is simple, unobtrusive, and cost-effective cables that are easy to install
FIFO Buffering
Each sample of a digital recording must remain evenly spaced in time. Unfortunately, timing can vary, especially when reading discs. This is “jitter”, degrading music's sense of space and diminishing realism. Meridian's multiple “First In, First Out” buffering system minimises jitter, ensuring perfect timing and improved clarity. You enjoy a clearer feeling of the instruments and their interrelationship.
Meridian Apodising Filter
Filters are critical in digital audio. Commonly they introduce distortion and harshness because of "pre-ringing". Early digital recordings suffer from harshness too, due to primitive filters. After painstaking research, Meridian developed a special filter that avoids pre-ringing, so it can be steeper, cleaning up the effects of early filters. The result: a better, cleaner sound from recordings old and new.
Filters are critical in digital audio. Commonly they introduce distortion and harshness because of "pre-ringing". Early digital recordings suffer from harshness too, due to primitive filters. After painstaking research, Meridian developed a special filter that avoids pre-ringing, so it can be steeper, cleaning up the effects of early filters. The result: a better, cleaner sound from recordings old and new.
Wide Range Driver
Loudspeakers use crossovers to “divide” music into bands their drivers can reproduce. This introduces distortion, reducing sound quality – particularly on human voice recordings. Designing a single driver for both mid and high frequencies made a crossover within the vocal range unnecessary, avoiding distortion and reproducing more lifelike vocals at all volume levels.
Enhanced Bass Alignment (EBA)
High or low, all sounds travel at the same speed, so all the sounds from a live musical event arrive at your ear at the same time, whatever frequencies they contain. Loudspeakers, however, have a problem when playing low frequency sounds at the same time as mid and high frequencies – the bass arrives late, and the deeper the sound, the later it arrives. This delayed bass causes music to lose its impact and reduces the sense of the recorded space – it is often described as “boomy”.
The goal is to have time-accurate loudspeakers, where all reproduced frequencies start and end at the same time. In a loudspeaker, this timing is affected by the crossover, driver, and enclosure type. To eliminate the delay between low, and mid and high frequencies, Meridian has designed a combination of digital filters and time delays for the mid and high frequencies. This solution enables the mid and high frequencies to “wait” for the low frequencies, delivering perfectly-timed music playback.
Mid and high frequencies are delayed to time-align them, while upper bass is delayed with a special type of patented filter. These features must be implemented entirely in the digital domain, making them impossible to achieve in any passive or analogue-active loudspeaker design.
Enhanced Bass Alignment provides accurate time-alignment of the drivers in the system, delivering exceptional imaging and a clear, transparent, more lifelike sound.
UPSAMPLING
Uses a complex digital filter to double the rate of samples from the source to improve resolution of the finer details in the record. This means that even with a standard source such as CD using our upsampling technology we are able to significantly enhance the listening experience.
MHR [MERIDIAN HIGH RESOLUTION]
A patented Meridian audio format that combines high bandwidth, security and low jitter. MHR gets the highest possible sound quality in playback systems that use Meridian and enables the encoded transmission of PCM, MQA and DSD.
Technical Details
AUDIO INPUTS
Meridian SpeakerLink connector (RJ45)
AUDIO OUTPUTS
Meridian SpeakerLink connector (RJ45)
PERFORMANCE
Peak SPL: 1m - 114dB
Bass extension: 40Hz
AMPLIFIERS
Wide-range driver: 2 x Class D amplifiers bridged for 100W into 8 Ohms
Bass driver: 2 x Class D amplifiers bridged for 100W into 8 Ohms
BASS DRIVERS
1 x 140mm long-throw design
WIDE-RANGE DRIVERS
1 x 85mm with neodymium magnet
FRONT PANEL CONTROLS
On/off rocker switch, IR window
RS232 socket – 3.5mm minijack (long version – 18.6mm)
Rocker switch selects “Right”, “L + R”, “Left or Centre”
LED indicators show power status and configuration settings
LED indicator shows power status
BOX DIMENSIONS / WEIGHT
HEIGHT: 800mm [31.5in] (Excludes frame and cable feed channel)
WIDTH: 203mm [8in]
DEPTH: 102mm [4in]
WEIGHT: 10 kg [22 lbs]
GRILLE DIMENSIONS
HEIGHT: 820mm [32.28in]
WIDTH: 222.5mm [8.73in]
DEPTH: 4mm [0.16in]
POWER
IEC mains connector included in back-box connects to flying lead attached to enclosure
