Primare SPA22 User Manual download pdf

PRIMARE SPA22 INTEGRATED A/V AMPLIFIER

INTRODUCTION

The SPA22 is a 5x120W integrated A/V amplifier and digital controller and is the natural successor to the award-

winning SPA21, which was recognised around the world for its ease of use and ‘hi-fi’ sound quality. As the first of

a new generation of Primare home entertainment products however, the SPA22 represents a considerable

evolutionary advance in terms of design, performance, user flexibility and versatility.

MODULAR DESIGN

The SPA22’s comprehensively shielded heavy-duty steel chassis houses a newly developed modular design that

allows for DSP, video and connections to be upgraded easily with proprietary Primare boards, incorporating

thoroughly evaluated and optimised versions of the latest technologies and connectors. This makes the SPA22 an

ideal surround and video processing platform for many years to come (for upgrade features see inputs/outputs

section).

In every instance we have taken special care to keep signal paths short and layouts uncomplicated. Together with

high performance FFC-wiring, these techniques give the unit an extremely high performance and the highest

possible signal-to-noise ratio. The finest audio grade semiconductors and capacitors have been used whenever

possible. All parts that are known to interfere with each other are isolated by shielding, dedicated signal paths and

power supplies.

ULTRA FAST POWER DEVICE (UFPD) CLASS D AMPLIFICATION

The use of switch mode power electronics is gaining in popularity as the result of its lower energy consumption

and as a way to squeeze more amplifier channels into smaller spaces. Unfortunately Class D amplifiers and their

switch mode power supplies have traditionally deserved a reputation for poor audio quality because it is very

difficult to produce a full range ‘hi-fi’ signal through them. A major source of distortion is the demodulation filter on

the output which is affected by variations in loudspeaker impedance unless it’s controlled by sufficient feedback.

The failure to provide enough feedback results in the ‘classic’ Class D sound characterised by rising THD with

frequency. While very dynamic and vivid initially, Class D amplifiers can sound tiring and uncontrolled in the long

term, especially when driving complex loads like multi-driver speakers.

more…

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Summary of Contents

Page 1

PRIMARE SPA22 INTEGRATED A/V AMPLIFIER INTRODUCTION The SPA22 is a 5x120W integrated A/V amplifier and digital controller and is the natural

Page 2

Primare’s UFPD (Ultra Fast Power Device) provides for the possibilities of an ‘audiophile’ Class D design. It is a Class

Page 3

Most Class D technologies display: • Limited bandwidth • Peaking frequency response • Load dependant frequency response • High output impedanc

Page 4

Eight pairs of unbalanced analogue audio inputs are provided together with six digital audio inputs. Via the ‘input settings’ menu, any audio input

Page 5

DTS-HD Master Audio: lossless encoding of up to 8 channels of audio. It offers a maximum bit rate of 24.5Mbps, up to 8 channels of 24bit/96kHz audio a

Page 6

• Fully Configurable & Format independent Bass Management • Discrete IR & Full RS232 Operation. • Programmable Triggers • Dimensions W x

Page 7

Samping rates 32KHz,44.1KHz,48KHz, 88.2KHz,96KHz,192KHz (AES/EBU) Digital Data Frequency Response THD+Noise Dimensions (WxDxH) Weight

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Primare SPA22 User Manual

Browse online or download User Manual for Audio amplifiers Primare SPA22. SPA22 Design Brief

Summary of Contents

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