SPECIFICATIONS     Stones  Sub Woofer Amplifier 200W/ 4 ohm   S200W         Twin  LP Filter

     Features: 

·  Large Heavy Duty Power Transformer 

·  High current 20,000 uf power supply for low impedance 4ohm   loads

·  Pure copper speaker cable  4.25 mm 2 x O.F.C(284 strand per conductor) direct soldered to PCB  ,No  Hi loss in line speaker connectors 

·  Heavy duty Hi purity copper  3 core Power Lead 

·  4 X Hi Power Discrete high current drivers and output devices

·  Large Heat-sink 

·  Output  short circuit protection circuit 

·  System thermal overload protection device 

·  Gain control Woofer -Volume level

·  Freq control Variable low pass

·  Phase Reverse/Normal  switch  180 degs

·  Auto on/off control

·  Gold plated RCA  low level in/out sockets 

·  Speaker  high level in/ out terminals

·  24db/octave 17Hz  filter to reduce excessive cone excursion 

·  Thermal over load protection 

·  Heavy duty power cable  Multi colour LED power indicator and protection mode indicator

·  Master power switch auto /on/off

·  Power  on in (auto)  standby mode triggers  with signal input 

·  AC  240V  

·  Soft Clipping circuit

·  Video/Audio filter switch 

  OPERATION  Instruction notes 

·   USE  Only  one set of inputs at a time  either  LOW  or  High
  LEVEL- not both 

·   LOW input: Bridge  both L& R Low level inputs if you have a mono output from your DVD or Home Theatre Amplifier this will give a 6db volume Level boost.

·  HIGH input : separate  L&R  speaker cable feeds from L&R front speakers to the  High level inputs on Sub Amp for Home theatre or Music DVD # Double check the polarity of the speaker leads is correct before switch on . 

·  PWR / PRT : LED light  normal mode  Green , 
 Protection mode LED changes to RED

·  Use Phase switch REV /NORM to achieve the deepest bass in sync with the L&R Front 
 Speakers 

·  Delayed Power on takes 5 to 20seconds  this is the Speaker  anti thump circuit  protecting the speaker on initial switch on 

·  Subwoofer Level Frequency and phase  controls are to achieve the best sound from your Subwoofer speaker  in conjunction with the Subwoofer speaker room  position .This will vary radically with different rooms and different program material music requiring different settings of the Gain/Freq/Phase  Controls  DVD movies require different settings to DVD music or CD Music 

  Specifications:

Graph showing Gain and Freq
 Control settings

STONES_S200W Subwoofer amplifier

                            STONES S200W  Subwoofer Amplifier