Справочник Пользователя для Sunfire SRS-210R

User's Manual

Your Sunfire SubRosa subwoofer is 

designed to give you the best possible 

low-frequency sound quality for your 

Home Theater experience. It incorporates 

a tremendously powerful amplifier and a 

pair of drivers to produce tight, floor-rum-

bling, denture-rattling bass that you can 

feel as well as hear.

The subwoofer has an automatic 

equalization system that will tailor the 

subwoofer output to compensate for any 

room effects. It also has a manual equal-

ization mode.

The subwoofer has an adjustable high 

cut filter and line-level inputs for easy 

incorporation into existing systems, or 

as part of a subwoofer/satellite speaker 

combination.

Controls for adjusting the volume, 

crossover frequency and phase, allow 

the subwoofer to be perfectly matched 

to any listening environment and audio 

components. 

The Drivers

To have lots of bass requires moving 

lots of air. Your Sunfire subwoofer incor-

porates two drivers that can move back 

and forth approximately five times more 

than a normal subwoofer. This gives it a 

lot of air moving capacity which allows for 

majestic bass performance. 

The woofers are high-strength designs, 

using neodymium magnets.

The Amplifier

The large movement range of the driv-

ers creates greater air pressure inside 

the box than a conventional subwoofer. 

Therefore, the drive amplifier must be 

much more powerful than an ordinary 

subwoofer amplifier. In fact, it has to be 

so powerful, it is almost hard to believe.

The power amplifier within your Sunfire 

subwoofer is capable of delivering over 

,700 watts. When the same full output is 

applied to the drivers, however, the enor-

mous back-electromotive force generated 

as a consequence of its large motion and 

giant magnets, causes the current flow to 

be much less. It is this singular property 

of the drivers that allows the subwoofer 

to be approximately ten times more ef-

ficient than a subwoofer this size would 

normally be. 

A compressor circuit kicks in automati-

cally if the input signal level reaches a 

level that would overload the drivers. This 

maintains a ceiling on the output without 

clipping. If the input signal is driven even 

further, a ‘soft clipping’ circuit is enabled. 

This allows the subwoofer to put more 

sound into the room to satiate the power 

hungry user, but without distortion or 

damage to the subwoofer. Thus, for ex-

plosive scenes in movies, this produces 

extremely high sound pressure levels 

(SPL) in your room without the drivers 

banging against the mechanical stops.

For more details of the subwoofer 

design, please call us or visit our website: 

www.sunfire.com.

Overview

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