Meridian 300W Two Channel Amplifier 559 Manual, Technical Specifications

 
 
Background 
Meridian amplifier technology has been developed over many years with some 
remarkable landmark innovations. The core design of 559 employs a radical 
new amplifier topology which was created specifically to meet the demands of 
new audio formats, and which was first featured in Meridian’s DSP8000 
flagship loudspeaker. 
The design goals for 559 were uncompromising. In particular superb linearity, 
stability and dynamic range are essential to do justice to high resolution source 
material from new formats like DVD-Audio and SACD. 
Meridian 559 
The 559 is an extremely powerful amplifier with an unruffled ability to 
continuously drive loads down to 1 ohm, and the capability of output current 
bursts exceeding 150 Amps. 
The power supply features a proprietary soft-start system, two low-noise high-
mass 1.2kVA transformers and more than 80,000µF of audiophile-grade 
smoothing capacitance. 
Single-ended inputs are balanced using our proprietary ‘super bal’ input 
topology before being fed to the power amplifier. The amplifier design 
emphasizes ultra-low noise and distortion and zero output impedance before 
any feedback is applied. Each channel uses twenty 16-amp output devices in a 
super-class-A output stage and features Meridian’s proprietary dynamic bias 
system. These techniques result in sound which is secure and open on a wide 
variety of loudspeakers. 
Technical Specification 
Power output:  2 channels at 300W into 8 ohms, or 
  1 channel at >1500W into 4 ohms (bridged). 
Distortion:   <0.05% 
Signal/Noise:   > –100dB 
Inputs:  Balanced on XLR and unbalanced on phono. 
Outputs:  Twin outputs for bi-wiring. 
Construction:  20 pairs of 16-amp output devices per channel and 80,000µF 
of audiophile-grade smoothing capacitors. 
  Ultra-low impedance error-corrected output stage. 
  DC coupled. 
Dimensions:  199.25mm (7.84) Height including feet, 480 (18.90) Panel 
width, 441 (17.36) Case width, 482 (18.98) Depth 
Weight 37kg (82lbs) 
  Soft start and thermal management in main assembly. 
Controls:  Front-panel control for power Standby (bias down). 
  Rear-panel controls for balanced or single-ended input, 
Bridge/Stereo Mode. 
559 
300W Two Channel Amplifier 
 
Sales information 
1
st
 December 2001  
 
•  300W into 8 ohms 
•  Over 1,500W of available 
power in bridge mode 
•  Twin high mass low noise 
1.2kVA transformers 
•  Switchable balanced and 
single-ended inputs 
•  Rack mountable 
•  Trigger input AC or DC 
control 
•  Standby control using trigger 
output from 562V.2, 561, 800 
or 861 
•  Dual gold-plated high-current 
binding posts 
•  Internal wiring by Van den Hul
®
 
•  Output stage bias down in 
standby mode 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Meridian Audio Limited 
Stonehill, Stukeley Meadows 
Huntingdon 
Cambridgeshire  PE29 6EX 
T +44 (0) 1480 445678 
F +44 (0) 1480 445686 
 
Meridian America Inc. 
Suite 122, Building 2400 
3800 Camp Creek Parkway  
Atlanta  GA 30331 
T (404)  344  7111 
F (404)  346  7111 
 
 
 
www.meridian-audio.com 
 

 

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