6BSST - Brystonbryston.com/PDF/Manuals/6BSST_MANUAL.pdf · 1. 'SST POWER' switch The front panel label 'SST POWER', is a touch sensitive membrane switch used to apply or remove a/c

6BSSTPOWER AMPLIFIEROWNER’S MANUAL

UPDATED 2007-08-01

6BSST THREE CHANNEL POWER AMPLIFIER

Table of Contents

General Introduction Page1 InstalationandVentilation

Rear Panel Input Settings/Connections Page2 SettingInputSelectorSwitch BalanceInputConnectorConfiguration SettingPolarity SettingInputSensitivity Output Binding Posts and Polarity Page3

Front Panel Description Page4 LEDIndicators(Power-upSequence) LEDIndicators(OperatingConditions)

Power Control Panel Page5 MasterCurcuit-Breaker ACPowerInput Local/AutoSwitch Local/ExternalSwitch

Rack Mounting Instructions Page6 IndividualModuleRemoval ChannelFuseType/Location

5.1 Typical Home Theatre Setup Page7

Block Diagram of the 6BSST Page8

Typical Performance Graphs Page9-12

Technical Specifications Page13

Important Warranty Information BackCover


1

Introduction Thankyouforchoosingthe6BSST Three Channel Power Amplifier.Brystonwelcomesanysuggestionsyoumayhave,orcommentsregardingtheoperationofyouramplifier.Weconsideryou,ourcustomer,tobeBryston’smostimportantresource,andyouropinionisverymuchappreciated.

Description The6BSSTisamodulardesign3x300Wperchannelaudiopoweramplifier.Eachchannelselectsabalancedorsingleendedinput.Eachchannelselectsagainof29dB(1v),23dB(2v)or17dB(4v).Eachchannelinputmaybeoperatedinvert-edornon-invertedoperation(0or-180degrees).Thepowerupofthe6BSSTmaybecontrolledbyremotecontrolvoltage.The6BSSTincludes‘softstart’powercontrolcircuitrytoeliminatehighinrushcurrentswhenA/Cpowerisapplied.

Warranty ( see back page for details )

Shipping Box & Packing Material Pleasekeeptheoriginalshippingboxandallpackingmaterial.Thiswillensuretheamplifierisprotectedinfuturetransport.Intheunlikelyeventyouhaveaproblemandmustreturnitforserviceyou mustusetheproperpackingmaterial.Shiptheamplifieronlyintheoriginalpackingmaterial,astheunitisnotinsurablebycarriersotherwise.

Installation ( see rack mounting section if applicable )Ventilation. The most important installation consideration is ventilation. The 6BSST is a convection-cooled amplifier.Unrestrictedair-flowacross itsheatsinks isamust.For this reasondonot installanythingdirectlyabove it.Allow3.5’(2u)to5”(3u)inchesofspaceaboveandtothesidesofthisamplifier.Donotinstalldirectlyaboveotherheatgeneratingequipment.Shouldyourinstillationconditionsbeconstricted,thenadditionalforcedair-coolingmaybenecessary.Brystoncanprovideanoptionalfanpackageifrequired.Any6BSSTchannelsthermallyshuttingdownduringoperationindicatesinsufficientcooling,andaremedymustbefoundforcoolingtheamplifier.Provideaminimum6”spacetotherearofthe6BSSTforventilationanddressingcablestoandfromtheamplifier.Never operate the 6BSST in a vertical position.

Wiring the 6BSST( also see rear panel description )

Speaker wiresshouldbeasshortaspractical.Usequalitywire,andifrunsaremorethan3metersuseatleast12gaugewire.Thespeakerbindingpostswillacceptwireupto3gageinsize.Brystoncancustombuildcablesforyourapplica-tion.

A/C powerBeforeplugginginthepowercordbesureyour6BSSTisspecifiedforthecorrect a/c voltageforyourlocality.Thevoltageislistedtotherightofthepowerinputconnector.Thecircuitfeedingthe6BSSTshouldbesufficientsoasnottocausethecircuitbreakertotrip.Note:the6BSSTwhenoperatedwithallchannelsatmaximumpowerinto4ohmloads,canconsumealltheavailablepowerinanormalhouseholdcircuit,thereforeadedicatedelectricalcircuitmaybenecessarywiththissituation.Neverliftthesafetygroundtotheamplifierorremovethegroundpinfromtheplug.

Power line conditionerswill notimprovethe6BSSTperformance,infactmostofthetimetheyrestricttheflowofcur-rentinthepowerlinetotheamplifier,reducingperformanceathighoutputlevels.


2

Rear Panel Input / Output Connections1. Input Select Switch.Each6BSSTchannelgivestheusertheoptionofswitchingbetweeneitherbalancedinputorsingleendedinput.

2. Balanced Input connector. ( Imp. 20k )Thisinputconnectoracceptsstandard‘XLR’or1/4”TRS.Usequality,100%shieldedcableswithgold platedconnectors.

‘XLR’ type ‘TRS’ type

‘RCA’ type

3. Single Ended Input. ( Un-balanced input ) ( Imp. 50k )Thisinputconnectoracceptsstandard‘RCA’or‘Phono’connectors.Usequality,100%shieldedcableswithgold platedconnectors.

Balanced input Vs Single ended input:Thebalancedinputrequiresabalancedpre-ampsource.Balancedsystemsprovidenoiseprotectionfromexternalelectricalinterference,socablelengthcanbeverylong(50morlonger).Thesingleendedorunbalancedinputisprovidedforpre-ampswithoutbalancedoutput.Single-endedcablesshouldbekeptto20’(7m)orless.Ingeneralneveruselongercablesthannecessary,nevercoilexcesscablelength,andrunsig-nalwiresawayfromACpowerorspeakercables.

4. Polarity Switch ( 0 or -180 degrees)Each6BSTchannelgivestheusertheoptionofinvertingthepolarityoftheinputsignal-180degrees.Polarityinversionisapplicationspecific.The normal operating position is 0 degrees.

5. Input Sensitivity (Gain) Switch. Theoptimumgainsettingwilldependuponthesourcepre-ampoperatinglevel,andorpersonalpreference. The1vsettingisusedwhenthesourceissingle-ended,orfromatransformercoupledbalancedsource. Thisisthehome theatresettingfor single endedorun-balancedoperation. The1vsettingprovidesthemostamplifiergain-29dB.(1vin=100w@8ohms.)(noise-112dB) Asignallevelof1.7vattheinputisrequiredtodeliver300Winto8ohms(ratedoutput).

The2vsettingisusedwhenthesourcesoutputisactivelyBalanced. Thisisthehome theatresettingforbalancedoperationOrusethissettingwithanysystemswhere thevolumecontrolrotationislimitedtothebottomhalfofthecontrolorless. The2vsettingprovidesanamplifiergain-23dB.(2vin=100w@8ohms.)(noise-115dB) Asignallevelof3.4vattheinputisrequiredtodeliver300Winto8ohms(ratedoutput).

The4vsettingisusedwhenthesourcepre-amphasahighoutputlevel,orinultrasensitivesystemswhere thevolumecontrolrotationrangeisstilllimitedwhenusingthe2vsetting. Somepre-ampsmaybeunabletodeliverenoughleveltousethissetting. The4vsettingprovidesanamplifiergain-17dB.(4vin=100w@8ohms.)(noise-118dB) Asignallevelof6.8vattheinputisrequiredtodeliver300Winto8ohms(ratedoutput).

ThenoiseisreferencedindBbelowratedoutputof300watts.Differentinputconfigurationsresultinslightlydifferent

Fig 1


3

6. Output binding posts & polarity.

TheREDbindingpostisconnectedtotheamplifier output.Connecttothispostthe(+)terminalontheloudspeaker.TheBLACKbindingpostisconnectedto signal ground.Connecttothispostthe(-)terminalontheloudspeaker.

Whenthepolarityswitchissetfor0degrees(normaloperation)theoutputattheREDbindingpostisin phasewiththeinputsignal.Whenthepolarityswitchissetfor180degrees(invertedoperation)thetheoutputattheREDbindingpostis180degreesoutofphasewiththeinputsignal.

TheOutputbindingpostsprovidethreedifferentinterconnectoptions.Combinationsmaybeusedwhenbi-wiring.Seefig-ure2below.CablesshouldbekeptasshortaspracticalandshouldneverbeterminatedwithconnectorsthatmaybecomeconfusedforACpowerconnectors.Cablesshouldbedressedawayfrominputandpowercables.1.Banana plugsofferaquickdisconnectoption.Beforeinsertingabananaplugintothebindingpostbesuretotightenthepostnuttoavoidrattlingandtoprovidefullinsertionofthebananaplug.GoldplatedlockingbananaplugsareavailablefromBryston.

2.Spade lugsprovidehighcontactareaandsecurefastening.Lugsshouldbegoldplated.Seediagramfordetails.Postdiameteris5/16’(8mm),lugwidth5/8”(16mm).GoldplatedspadelugsareavailablefromBryston.3.Stripped bare wireupto3gaugecanbeinsertedthroughtheholeinthebindingpostandheldinplacebytighteningthepostknob.Additionaltighteningpressurecanbeachievedusingacoinintheslotsoftheknob.Donotovertightenorthebindingpostmaybecomedamaged.Notethatcopperwireismalleableandmayrequirefurthertighteningaftertheinitialinstallation.

7. Rear Handle (Page 2 Fig 1)Thehandleoneachchannelistoprotecttheconnectorsandremovalofthechannelfromthechassis.Thishandleshouldnever be used to carry the 6BSST.Useonlythe front panel handlesforcarryingthe6BSST,orliftfromthesidesofthechassisifnotequippedwithfrontpanelhandles.

5/8”

5/16”

Fig 2

Spadelugdimensions

3

2

1Coin


4

Front Panel1. 'SST POWER' switchThefrontpanellabel'SSTPOWER',isatouchsensitivemembraneswitchusedtoapplyorremovea/clinepowertothe6BSSTcircuitry.Pushfirmlythecenteroftheswitchuntilthepower-upsequencebegins.Pushagainandthe6BSSTwillpower-down.(Note:therearcircuitbreakermustbeonforthe6BSSTtopower-up)

2. LED IndicatorsEach6BSSTchannelhasaLEDindicatortomonitorthefollowingchannelconditions: Unlit - indicateschannelhasnopower. Red - indicateschannelismuted(power-up-downsequence) GReen -indicateschanneloperationisnormal. FlashinG Red - indicateschannelclipping. ORanGe - indicateschannelthermalshutdown.Power up sequence Afterpushingthe'SSTPOWER'switch,eachchannelledwillturnfromunlittored(mute).Whenthepowersupplieshavestabilizedthechannelwillcomeoutofmuteandtheledwillchangetogreen(normaloperation).

Unlit led ( No power )The6BSSTchannelledwhenunlitindicatesnoA/Cmainspowerispresentatthechannel.Ifallchannelledindicatorsareunlitthe6BSSTprobablyneedsonlytobepoweredon.Asinglelednotlightingpossiblyindicatesblownchannelfuses.Whencheckingfusesswitchoffthecircuitbreakerontherearpanel,orunplugthepowercord.Useonlythespecifiedquick-acting4amp250V5mmx20mmfuses.Seepage6forthefuselocations.

Clipping ( flashing red )Clippingoccurswhenthechanneloutputlevelnolongercanfollowthelevelincreaseattheinput(Overdrivenouteeputcondition).Whena6BSSTchannelisdrivenintoclippingthechannelledwillchangefromgreentoredthenbacktogreenwhenthelevelisreduced(FlashingRed).Momentaryclippingcanbetolerated,howeveritindicatesthatmaxi-mumun-distortedpowerhasbeensurpassedandpotentialspeakerdamagemayresultifoverloadconditionspersist.Anyamplifierthatisconstantlyoperatedintoclippingindicatesamorepowerfulamplifierisneededforthatapplication.

Thermal Shutdown ( orange )The6BSSTchannelhasthermalshutdowncircuitrytopreventdamageduetooverheating.Shouldthermalshutdownoccur,thechannelwillmute,andthechannelledwillturnorangeindicatingthiscondition.Whenthechannelhascooledtoasafeoperatingconditionthechannelwillreturntonormaloperation.PersistentThermalshutdownindicatesstepsneedtobetakentoincreaseairflowacrossthechannelorchannelsheatsink.(Alsoseeinstallationsectiononventilation).

2

1


5

Power Control Panel1. Master circuit - breaker.The6BSSTusesamagnetic-tripcircuitbreaker(1)toprotecttheamplifier.Thisswitchshouldbe‘OFF’wheninstallingthe6BSST.Whenswitched‘OFF’allA/Cpowerisremovedfromtheamplifier,includingstandbypower.Thecircuitbreakerisnotthedaytodaypowerswitchandshouldbeswitchedandleft‘ON’aftertheinstallationiscomplete.Usethe‘SSTPOWER”switchoranexternalcon-trolvoltagetoPower-uporPower-downtheamplifier.Shouldthebreakertrip,lowerorremovetheamplifierinputsignals.Switchthebreakertothe‘ON’position.Thenpowertheunitupnormally.The circuit breaker must be ‘ON’ at all times for the 6BSST to operate.

2. AC power input.Thisisahighcurrentplugforthepowercordreceptacle.Checkthatthevoltageratingattherightoftheconnectorconformswithyourlocality.Withthecircuitbreaker‘OFF’insertthepowercordintothe6BSST,thenplugtheotherendtoanapproprateA/Cpoweroutlet.

3. LINE VOLTAGE STATUS INDICATOR ThisLEDwillbeonanytimetheamplifierispluggedintoasourceofelectricalpower.NormallytheLEDwillbegreen,anditmustbegreenfortheamplifiertopoweron.Shouldtheamplifiernotpoweron,andtheLEDisflashing,removethepowercordfromtherearoftheamplifierandwaitafewsecondsthenplugthepowercordbackin.ShouldtheLEDbered,aconditionexistspreventingtheamplifierfrompoweringup.Reasons–theappliedelectricalpowerisoutsidetheoperatingrange–120vunitconnectedto230v–Checktheelectri-calratingslabelontherearpaneltoseeifthevoltageiscorrectforyourlocation.Otherwiseconsultyourdealerorcallthefactory.

4. External control voltage power up ( Local / external switch.)A.Topower-upthe6BSSTusinganexternalcontrolvoltage,Supplya4vto12vA/CorDCcontrolvoltagetothe‘IN’terminalsofconnector(5).Usepairedwireof22gaugeto18gaugesufficientinlengthbetweenthesourcedeviceandthe6BSST.(see‘W’)Selectswitch(4)to“External”.Theamplifierwillnowpower-uponlywhenthecontrolvoltageispresent(on).Immediatelyfollowingpowerup,thecontrolvoltagewillappearatthe’OUT’terminalsofconnector(5)forthecontrolofotherequipment.TheRemovalofthecontrolvoltage(0v)causesthe6BSSTtoturn‘off’andthecontrolvoltageatthe‘OUT’terminalsisinterrupted.B.Inthe“Local”settingofswitch(4)the6BSSTwillignorethecontrolvoltage,andpoweruponlybyusingthefrontpanel‘SSTPOWER’switch,orasinsection3above.Ifacontrolvoltageispresentatthe‘IN’terminalsitwillstillbeavailableatthe‘OUT’terminalsafterthepower-upsequence.

1/4”strip

Control voltage wire preparation for screw terminals

18to22gagewire

separate 1”Control Voltage equipped source 4 to 12v ac or dc

Note:The‘OUT’terminalsareconnectedtothe‘IN’terminalsoncethe6BSSThaspowered-up.Thecontrolcurrentisdeterminedbythesource equipment.Thecarryingcurrentofthe‘OUT’relayis2amps.The6BSSTitselfdrawslessthan2mafromthecontrolcurrentwhenoperating.

to other voltage controlled devices

figW


6

Rack Mounting Instructions

Removingthechannelsmakesrackmountingfareasierasthechassiswillbemuchlighter.Beforeremovinganyscrewsfromthe6BSSTbesurethepowercordisremovedfromtheunit.Removethescrewsindicatedonthetopandbottomviewsplustheonesdescribedonthesides.Pullgentlyonthechannelhandletoremovethechannel.Bepreparedtousebothhandstohandlethechannel.Itshouldnotbenecessarytoremovethepowerinputmodule.Install6BSSTchassisinrack.Carefullyreinstallthechannels.

REMOVE ALL 6-32 SCREWS ON THE BOTTOM.

Theremovalofthefeetshouldnotbenecessaryasclearancebelowthe

amplifierMUSTbeatleast1Uwhenrackmounting.

REMOVE 4 6-32 SCREWS

FROM THIS SIDE

REMOVE 3 3-32 SCREWS

FROM THIS SIDE

The6BSST19”versionmayberackmountedwithorwithouttheabilitytoremovethechannels.Ifremovalofthechan-nelsisdesiredthentheshippingscrewssecuringthechannelsneedtoberemoved.

FUSES - USE SAME TYPE ONLYFAST ACTING 4A 250V 5mm X 20mm

TOP VIEW

BOTTOM VIEW

REMOVE 8 SCREWS 632 X 3/8”

DO NOTREMOVESCREWSFROMRACKMOUNT

BRACKET

DO NOTREMOVESCREWSFROMRACKMOUNTBRACKET


7

Typical 5.1 Home Theatre Setup

Right FrontLeft Front

CenterPowered Subwoofer

Right RearLeft RearHome Theatre processor

4BSST 2 x 300w per ch.

6BSST 3 x 300w per ch


8


9

Typical Band-pass Noise

Typical THD+N Harmonic Content

Power supply artifacts are all below -95 dBubalanced input with 23dB gain shown

The harmonic content of the 6BSST is all even order.

dBu: dB relative to a reference of 0.7746 Volts


10

Typical Frequency Response

Typical Phase Response

4 ohm 600w

8 ohm 300w

8ohm300w<.01dB20Khz.

4ohm500w<.1dB20Khz.

Typical THD+N Sweep

4 ohm 600w

8 ohm 300w


11

Typical IMD Sweep

8 ohm 300w

4 ohm 600w

Graph shows that distortion isessentiallyunaffectedbyload.4vbalancedinputshown.


12

Damping Factor

Typical Crosstalk

8 ohm reference

channel 2 reading with channels 1 & 3 driven to

300w into 8 ohms

channel 2 reading with channels 1 & 3 driven to

600w into 4 ohms


13

Technical Specifications

Power Output, 29dB-1.7Vin=300W@8Ohms-(1VPosition)Gain Select and Sensitivity 23dB-3.4Vin=300W@8Ohms-(2VPosition) 17dB-6.8Vin=300W@8Ohms-(4VPosition)

Input Impedance 50Kohmssingleended 20Kohmsbalanced

Distortion <0.005%20Hzto20kHzat300wattsinto8ohms,IM or THD+noise <0.007%20Hzto20kHzat500wattsinto4ohms

Noise Measuredwithinputshorted-20Hzto20kHz. >112dBbelowratedoutput29dBgain(-75dBu) >115dBbelowratedoutput23dBgain(-78dBu) >118dBbelowratedoutput17dBgain(-81dBu)

Slew Rate >60voltspermicrosecondPower Bandwidth <1Hztoover100kHz

Damping Factor Over500at20Hz,ref.8ohms

Dimensions Rackmountversion 48.3x13.3x39.4cm-19”x7”x20.5“withhandles- mountedrackdepth-46.7cm-18.375"17”version 43.2x13.3x39.4cm-17”x7”x19“Weight: approx.36kg-80lbs

Power Consumption &Heat Load

singlechannel300W@8ohms- 625Watts 3channels@300W@8ohms- 2100Watts Max.HeatDissipation8ohms- 4100Btu/Hr.

singlechannel500W@4ohms- 1075Watts 3channels@500W@4ohms- 3450Watts Max.HeatDissipation4ohms- 6600Btu/Hr. AtIdle- 225Watts

IMPORTANT SAFETY INSTRUCTIONSThe lightning flash with arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of un-insulated “dangerous voltage “ within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

1. Read these instructions.2. Keep these instructions.3. Heed all warnings.4. Follow all instructions.5. Do not use this apparatus near water.6. Clean only with dry cloth.7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A

grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the pro-vided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is

used use caution when moving the cart/apparatus combination to avoid injury from tip-over.13. Unplug this apparatus during lightning storms or when unused for long periods of time.14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-

supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.DO NOT EXPOSE THIS EQUIPMENT TO DRIPPING OR SPLASHING AND ENSURE THAT NO OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, ARE PLACED ON THE EQUIPMENT.TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM THE AC MAINS, DISCONNECT THE POWER SUPPLY CORD PLUG FROM THE AC RECEPTACLE.THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE.

BRYSTON LIMITED WARRANTYBryston analog audio circuits are warranted to be free from manufacturing defects for twenty (20) years from the original date of manufacture. The warranty includes parts and labour.Bryston Digital circuits and cables are warranted for five years from the original date of manufacture. The warranty includes parts and labour. Bryston products having motorized moving parts, excluding motorized volume controls, are warranted for three years from the original date of manu-facture. The warranty includes parts and labour. Bryston will remedy the problem by repair or replacement, as we deem necessary, to restore the product to full performance. Bryston will pay return shipping costs for the full length of the specific product's warranty.In the event of a defect or malfunction, contact Bryston’s repair centers for return authorization. Products must be returned using original packaging material only. Packing material may be purchased from Bryston if necessary. This warranty is considered void if the defect, malfunction or failure of the product or any component part was caused by damage (not resulting from a defect or malfunction) or abuse while in the possession of the customer. Tampering by persons other than factory authorized service personnel or failure to fully comply with Bryston operating instructions voids the warranty. This warranty gives you specific legal rights and you may also have other rights which may vary from province to province and country to country.As of 2006-02-22 Bryston will only warranty Bryston products purchased through authorized Bryston dealers. Bryston products with a date code of 0608 or higher (date code format is “yyww”, where “yy” is the two least significant digits of the year and “ww” is the week of the year) must be accompanied by a copy of the bill-of-sale from a Bryston authorized dealer to qualify for warranty service. The warranty is transferable from the original owner to a subsequent owner as long as a copy of the bill-of-sale from the original authorized Bryston dealer accompanies the re-sale. The copy of the bill of sale to any subsequent owner need ONLY include the Name of the Bryston Authorized Dealer and the Model and Serial number of the Bryston product The warranty will only be honored in the country of the original purchase unless otherwise pre-authorized by Bryston.

Postal address: P.O.BOX2170,Stn.Main PETERBOROUGH,ONTARIO CANADAK9J7Y4Courier address: 677NEALDRIVE PETERBOROUGH,ONTARIO CANADAK9J6X7

PHONE: 705-742-5325FAX: 705-742-0882E-mail: [email protected]

79COVENTRYST.,Suite5NEWPORT,VERMONTU.S.A.05855-2100

PHONE: 802-334-1201FAX: 802-334-6658E-mail: [email protected]

BRYSTON SERVICE in CANADA: BRYSTON SERVICE in the USA:

contact your local distributor or

CHECK OUR WEB SITE: www.bryston.ca E-MAIL BRYSTON DIRECTLY: [email protected] BRYSTON DIRECTLY: 01-705-742-0882PHONE BRYSTON DIRECTLY: 01-705-742-5325

BRYSTON SERVICE outside Canada and the USA:

6Bsst_MANUAL_20070801

Documents

6BSST - Brystonbryston.com/PDF/Manuals/6BSST_MANUAL.pdf · 1. 'SST POWER' switch The front panel label 'SST POWER', is a touch sensitive membrane switch used to apply or remove a/c