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O W N E R ’ S   M A N U A L

KS320

F E A T U R E S

A T T A C H I N G   T H E   F E E T

The KS320 subwoofer was designed for exceptional performance and value.  It features a 12” extra-long  

excursion woofer with high Bl motor.  The bass r

eflex enclosu

re ensures extended bass response and high 

acoustic efficienc

y.  

The woofer is driven with an integral 300W class A/B ampl

ifier utilizing the patented B

ASH technology for high 

electrical efficienc

y.  

The integral rear-mounted 300 wat

t amplifier includes se

veral essential controls to contour the subwoofer’s  

output to blend with virtually all loudspeakers and room environments.  These controls, their operation, and 

their adjustment are described in a later section of this manual.  

An integral low pass crossover network is continuously-variable fr

om 40Hz to 120Hz and can be 

bypassed if it is 

preferable to use an external crossover located in an outboard receiver or processor.

The KS320’s integr

al amplifier incorpo

rates a defeatable signal-sensing circuit that automatically powers up the 

amplifier when a signal is detected.  

A double-insulated isolated-ground electrical supply prevents electrical ground loops and r

educes the noise floor 

of the entire audio system.

The KS320 is shipped with 8 adjustable feet, (4 spiked and 4 rubber) with tool-less knurled jam nuts.   These 

feet can be installed in the bottom of the enclosure in either a three-point triangular pattern or more traditional 

4 point square pattern.  The bottom of the enclosure has 5 threaded inserts arranged to accept either pattern.  

Front of Subwoofer

Front of Subwoofer

Bottom of Subwoofer 

Showing (4) Rubber Feet

Bottom of Subwoofer 

Showing (4) Spiked Feet

Front of Subwoofer

Front of Subwoofer

Bottom of Subwoofer 

Showing (3) Rubber Feet

Bottom of Subwoofer 

Showing (3) Spiked Feet

After reviewing the manual and unpacking your KS320 subwoofer, we suggest that the four rubber feet be installed 

on the bottom of the enclosure to protect the subwoofer and y

our floor or cabinetry 

from damage during  

installation and setup.  These feet can be replaced by the spikes, or removed if desir

ed, after the final location is 

determined.  Here are some guidelines for using the feet.

 

DO NOT try to slide your subwoofer with the feet installed.  This will damage the foot supports or the feet.  

 

If the KS320 is placed on carpet, the spikes are likely the best choice since they will penetrate the carpet    

 

and provide a solid and stable footing for the subwoofer.  

 

If the unit is placed on a hard surface then the rubber feet should be used.  

 

You may elect to use only three feet especially if the surface on which you are placing the subwoofer is 

 

unev

en, such as a stone or tile floo

r.  See diagram for details.

To install the feet:

Thread the knurled jam nuts onto the desired feet and then screw the feet into the appropriate holes on the  

bottom of the KS320 enclosure.  Begin with the feet screwed all the way into the enclosure.  Rotate the enclosure 

into its upright position and lower the appropriate feet to level the subwoofer and prevent it from rocking.  Finger 

tighten the knurled jam nuts against the bottom of the enclosure to secure the feet and prevent them from  

moving.  Use care not to over-tighten the knurled jam nuts as they wil

l be difficu

lt to loosen.

Содержание KS320

Страница 1: ...300 Watt Powered Subwoofer 12 E X T R A L O N G T H R O W Heavy Duty Woofer RIDLEY ACOUSTICS KS320 P O W E R E D S U B W O O F E R KS320 OWNERS MANUAL ...

Страница 2: ...from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been dam aged in any way such ...

Страница 3: ...s been developed to provide you with pleasing accurate bass in your music system or home theater sound system This manual covers operating procedures general setup and technical specifications for your KS320 We recommend that you thoroughly read through the material contained in this manual before connecting your subwoofer This will ensure that you have a complete understanding of how to setup and ...

Страница 4: ... either pattern Front of Subwoofer Front of Subwoofer Bottom of Subwoofer Showing 4 Rubber Feet Bottom of Subwoofer Showing 4 Spiked Feet Front of Subwoofer Front of Subwoofer Bottom of Subwoofer Showing 3 Rubber Feet Bottom of Subwoofer Showing 3 Spiked Feet After reviewing the manual and unpacking your KS320 subwoofer we suggest that the four rubber feet be installed on the bottom of the enclosu...

Страница 5: ...termining which option to use Note The best performance can be achieved using the line level inputs or as opposed to the speaker level inputs RISQUE DE CHOC ELETRIQUE NE PAS OUVRIR 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 Power and Standby Mode Indicator Off No Power Green On Red Standby Auto Power Mode Switch Selects if amplifier power is signal activated On Signal Sensing Off Bypassed Amp ON Lev...

Страница 6: ...nections are parallel and you may use the B output for the subwoofer If the A speakers discontinue playing when the B button is engaged then you will need to connect the subwoofer in parallel to the A speaker outputs OPTION 2 If an LFE Low Frequency Effect or Subwoofer output is available then skip to Option 3 since it will likely produce the best results If no LFE output is available and a line l...

Страница 7: ...M 75 UNBAL Ω REMOTE OUT AC OUTLETS AUDIO VIDEO S VIDEO DVD VCR IN OUT VIDEO FRONT A R L L R FRONT SURROUND SUR BACK SUB WOOFER PRE OUT SINGLE CENTER Left Speaker Level Input Right Right Left LFE Line Level input Right Left LFE Line Level input OPTION 3 OPTION 2 OPTION 1 SPEAKERS L R FRONT SURROUND SUR BACK SUB WOOFER PRE OUT SINGLE CENTER FRONT A R L ...

Страница 8: ... One should contact an expert in the field of acoustics if one finds that the low frequency reproduction in their room is unsatisfactory Placing the subwoofer near a wall will substantially increase its effective radiating power especially at very low frequencies Placing the subwoofer near the intersection of two walls a corner will substantially increase it even more Corner loading as it is called ...

Страница 9: ...n system speakers We have found that most speakers with 6 to 8 woofers blend well with the crossover set somewhere between 50Hz and 80Hz Readjust the Level and the Frequency controls up or down as necessary until the bass sounds full extended and natural Use multiple musical pieces to test the system while fine tuning the controls If it sounds like your subwoofer is always producing the same bass n...

Страница 10: ... 508D mm Shipping Weight 51lbs 23 2kg Fine Tuning the Controls Crossover Switch If you choose to bypass the internal crossover and use an external crossover such as those located in most modern receivers and processors then you will need to fine tune the system based on the adjustments provided by the manufacture of your electronics in conjunction with the Level and Phase controls on the KS320 Note...

Страница 11: ...ceable by the original purchaser and by any subsequent owner s during the warranty period so long as a copy of the original Bill of Sale is submitted whenever warranty service is required LIMITATION OF WARRANTY No warranty is made either express or implied as to the merchantability and fitness for any particular purpose Any and all warranties are limited to the duration of the warranty stated abov...

Страница 12: ...sales ridleyacoustics co uk www ridleyacoustics co uk Rev F Ridley Acoustics ...

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