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14B-SST POWER AMPLIFIER OWNER’S MANUAL UPDATED 2006-10-26

14B-SST - Bryston · 14B-SST Series Amplifier 1 Introduction Thank you for choosing the 14B-SST Stereo Power Amplifier. Bryston welcomes any suggestions you may have, or comments

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Page 1: 14B-SST - Bryston · 14B-SST Series Amplifier 1 Introduction Thank you for choosing the 14B-SST Stereo Power Amplifier. Bryston welcomes any suggestions you may have, or comments

14B-SSTPOWER AMPLIFIEROWNER’S MANUAL

UPDATED 2006-10-26

Page 2: 14B-SST - Bryston · 14B-SST Series Amplifier 1 Introduction Thank you for choosing the 14B-SST Stereo Power Amplifier. Bryston welcomes any suggestions you may have, or comments

14B-SST Series Amplifier

Table of Contents

General Introduction Page1 Description InstallationandVentilation

Rear Panel Input Settings/Connections Page2 SettingInputSelectorSwitch BalanceInputConnectorConfiguration SettingInputSensitivity

Output Binding Posts Page3

Power Control Panel Page4 MasterCircuit-Breaker ACPowerInput Local/AutoSwitch

Front Panel Description Page5 LEDIndicator(Power-upSequence) LEDIndicator(OperatingConditions)Typical Performance Graphs Page6-7

External Dimensions Page8

Technical Specifications Page9

Important Safety Instructions & Warranty Information BackCover

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14B-SST Series Amplifier

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Introduction Thankyouforchoosingthe14B-SST Stereo Power Amplifier.Brystonwelcomesanysuggestionsyoumayhave,orcommentsregardingtheoperationofyouramplifier.Weconsideryou,ourcustomer,tobeBryston’smostimportantresource,andyouropinionisverymuchappreciated.

Description 14B-SSTThe14B-SSTisadualchannel600Wattaudiopoweramplifier.The14BSSTcanacceptabalanced(3-pinXLRconnec-tor)orsingleendedinput(RCAorphonoconnector)andcanbesettoagainof29dB(sensitivity=1V)or23dB(sensitivity=2V).The14B-SSTincludes‘softstart’powercontrolcircuitrytoeliminatehighinrushcurrentswhenA/Cpowerisapplied.Thepoweruporturn-onofthe14B-SSTmaybeactivatedbyaremotecontrolvoltage4vto12vacordc.

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 14B-SST amplifier is convection cooled.Unrestrictedair-flowacross the14B-SSTheatsinks isamust.For this reasondonot installanythingdirectlyabove it.Allow3.5’(2u)to5”(3u)inchesofspaceaboveandtothesidesofthisamplifier.Donotinstalldirectlyaboveotherheatgeneratingequipment.Shouldyourinstillationconditionsbeconstricted,thenadditionalforcedair-coolingmaybeneces-sary.Brystoncanprovideanoptionalfanpackageifrequired.Thermalshutdownduringoperationindicatesinsufficientairflow,andaremedymustbefoundforcoolingtheamplifier.Provideaminimum6”spacetotherearoftheamplifierforventilationanddressingcablestoandfromtheamplifier.Never operate the amplifier in a vertical position.

Wiring the 14B-SST amplifier ( also see rear panel description )

Speaker wiresshouldbeasshortaspractical.Usequalitywire,andifrunsaremorethan3metersuseatleast12gagewire.Thespeakerbindingpostswillacceptwireupto3gageinsize.Brystonoffersspeakercablesandampinterconnectsforyourapplication.Checkourwebsiteunderproducts/cables(www.bryston.ca)formoreinformation.

A/C powerBeforeplugginginthepowercordbesureyour14B-SSTamplifierisspecifiedforthecorrect AC voltageforyourlocality.Thevoltageislistedonthelabelfoundattheupperrightoftherearpanel.Thecircuitfeedingthe14B-SSTshouldbesuf-ficientsoasnottocausethecircuitbreakertotrip(15ampmin.).Note:the14B-SSTwhendeliveringmaximumpowerintoa4ohmload,willconsumealltheavailablepowerinanormalhouseholdcircuit,thereforeadedicatedelectricalcircuitmaybenecessarywiththissituation.Neverliftthesafetygroundtotheamplifiernorremovethegroundpinfromtheplug.

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14B-SST Series Amplifier

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Rear Panel Input / Output Connections

1. Input Select Switch.TheINPUTSELECTswitchgivestheusertheoptionofswitchingbetweeneitherbalancedinputorsingleendedinput.

2. Input Sensitivity Selection. Thisswitchchangesthegainoftheamplifier. ● The1vsettinghasagainof29dB ● The2vsettinghasagainof23dBTheoptimumgainsettingwilldependuponthesourcepre-ampoperatinglevel,andorpersonalpreference.Usethe2vsettingwithanysystemswherethevolumecontrolrotationislimitedtothebottomhalfofthecontrolorless.

3. Balanced Input connector. (input imp 58K each leg)Thisinputconnectoracceptsstandard‘XLR’or1/4”Phonejack(Tip-Ring-Sleeve).Usequality,100%shieldedcableswithgold platedconnectors. 4. 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.Balancedsystemsprovidenoiserejectionfromexternalelectricalinterference,socablelengthcanbeverylong(50morlonger).Thesingleendedorunbalancedinputisprovidedforpre-ampswithoutbalancedoutput.Single-endedcablesshouldbekeptto20’(7m)orless.Ingeneralneveruselongercablesthannecessary,nevercoilexcesscablelength,andkeepsignalwiresawayfromACpowerorspeakercables.

5. Level Control. (Pro models only)Thelevelcontrolwillattenuatetheinputsignallevelfrom0dBthrough-14dB.

Figure1

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14B-SST Series Amplifier

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6. Output binding posts.

TheREDbindingpostisthein-phase amplifier output.Connecttothispostthe(+)terminalontheloudspeaker.TheBLUEbindingpostistheinverted-phase amplifier output.Connecttothispostthe(-)terminalontheloudspeak-er.Note:At no time shouldeither output be connected to a ground, or chassis.Failureoftheamplifiermayresult.Neverconnecteitheroutputinparallelwithanotheramplifier.Theminimumrecommendedloudspeakerloadis4 ohms.

TheOutputbindingpostsprovidethreedifferentinterconnectoptions.Combinationsmaybeusedwhenbi-wiring.Seefig-ure2below.CablesshouldbekeptasshortaspracticalandshouldneverbeterminatedwithconnectorsthatmaybecomeconfusedforACpowerconnectors.Cablesshouldbedressedawayfrominputandpowercables.● Banana plugsofferaquickdisconnectoption.Beforeinsertingabananaplugintothebindingpostbesuretotighten

thepostnut toavoidrattlingandtoprovidefull insertionof thebananaplug.Goldplated lockingbananaplugsareavailablefromBryston.

● Spade lugsprovidehighcontactareaandsecurefastening.Lugsshouldbegoldplated.Seediagramfordetails.Postdiameteris5/16’(8mm),lugwidth5/8”(16mm).GoldplatedspadelugsareavailablefromBryston.

● Stripped bare wireupto3gagecanbeinsertedthroughtheholeinthebindingpostandheldinplacebytightening

thepostknob.Additionaltighteningpressurecanbeachievedusingacoinintheslotsoftheknob.Donotovertightenorthebindingpostmaybecomedamaged.Notethatcopperwireismalleableandmayrequirefurthertighteningaftertheinitialinstallation.

5/8”

5/16”

Spadelugdimensions

BANANAPLUG

SPADELUG

BAREWIRE

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14B-SST Series Amplifier

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Power Control(refer to f igure 1 on page 2)

7. Master circuit - breaker.The14B-SSTamplifierusesamagnetic-tripcircuitbreakertoprotecttheamplifier.Thisswitchshouldbe‘OFF’duringinstallation.Whenswitched‘OFF’AllA/Cpowerisremovedfromtheamplifier,includingstandbypower.Thecircuitbreakerisnotthepowerswitchandshouldbeswitchedtoandleft‘ON’aftertheinstallationiscomplete.Usethe14B-sstfrontpanelpowerswitchoranexternalcontrolvoltagetoPower-uporPower-downtheamplifier.Shouldthebreakertrip,lowerorremovetheamplifierinputsignal(alsoseesection9below).Switchthebreakertothe‘ON’position.Thenpowertheunitupnormally.The circuit breaker must be ‘ON’ at all times for the 14B-SST amplifier to operate.

8. AC power input.Ontherearpanelisprovidedahighcurrentplugforthepowercordreceptacle.Checkthatthevoltageratingonthelabel(item12infigure1,page2)conformswithyourlocality.Withthecircuitbreaker‘OFF’insertthepowercordintothe14B-SSTamplifier,thenplugtheotherendtoanappropriateA/Cpoweroutlet.SwitchthecircuitbreakertoonandobservetheLEDlabeled"LineVoltageStatusIndicator".

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

10 & 11: External control voltage power up ( Local/External switch & Interface Connector)● Topower-uptheSSTamplifierusinganexternalcontrolvoltage:

1) Supplya4vto12vA/CorDCcontrolvoltagetothe‘IN’terminalsofconnector(10).2)Usepairedwireof22to18gagesufficientinlengthbetweenthesourcedeviceandtheSSTamplifier.3) Setslideswitch(item11infigure1,page2)to“External”.Theamplifierwillnowpower-uponlywhenthecontrol

voltageispresent(on).Immediatelyfollowingpowerup,thecontrolvoltagewillappearatthe’OUT’terminalsoftheinterfaceconnector(item10onfigure1,page2,alsoseebelow)forthecontrolofotherequipment.Theremovalofthecontrolvolt-age(0v)causestheamplifiertoturn‘off’andthecontrolvoltageatthe‘OUT’terminalsisinterrupted.

●Inthe"Local”setting:The14B-SSTamplifierwillignorethecontrolvoltage,andpoweruponlybyusingthefrontpanel‘SSTPOWER’switch,orasinsection3above.Ifacontrolvoltageispresentatthe‘IN’terminalsitwillstillbeavailableatthe‘OUT’terminalsafterthepower-upsequence.

Note:The ‘OUT’ terminals are connected to the ‘IN’ terminals once the 14B-SST amplifier has pow-ered-up. The control current is determined by the source equipment. The carrying current of the ‘OUT’ relay is 2 amps. The 14B-SST control circuitry itself draws less than 2 mA from the control current when operating.

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14B-SST Series Amplifier

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FRONT PANEL (refer to illustration above)13. ‘14B-SST’ power switch

Thefrontpanellabel‘14B-SST’,isapushonpushoffswitchusedtoapplyorremoveAClinepowertothesoftstartcircuitry.(Note:therearcircuitbreakermustbeonfortheamplifiertopower-up)

14. LED IndicatorsThe14B-SSThasanLEDindicatortomonitorthefollowingconditions:

Unlit - indicatestheamplifieristurnedoff. Red - indicatestheamplifierismuted(inapower-upsequence) GReen -indicatestheamplifieroperationisnormal. FlashinG Red - indicatestheamplifierclipping. ORanGe - indicateschannelthermalshutdown.Power up sequence Afterpushingthe'SSTPOWER'switch,theLEDwillturnfromunlittored(mute).WhenthepowersupplyhasstabilizedtheamplifierwillcomeoutofmuteandtheLEDwillchangetogreen(normaloperation).

Unlit LED ( power off )The14B-SSTLEDwhenunlitindicatesnoA/Cmainspowerispresentandtheamplifierprobablyneedsonlytobepoweredonortherearpanelcircuitbreakerisswitchedoff.Shouldtheamplifiernotpoweronwhenthepowerswitchispushedseetheinstallationinstructions.

Clipping ( flashing red )Clippingoccurswhenthechanneloutputlevelnolongercanfollowthelevelincreaseattheinput(Over-driveninputcondition).Whenthe14B-SSTisdrivenintoclippingtheLEDwillchangefromgreentoredthenbacktogreenwhenthelevelisreduced(FlashingRed).Momentaryclippingcanbetolerated,howeveritindicatesthatmaximumun-distortedpowerhasbeensurpassedandpotentialspeakerdamagemayresultifoverloadconditionspersist.Anyamplifierthatisconstantlyoperatedintoclippingindicatesamorepowerfulamplifierisneededforthatapplication.

Thermal Shutdown ( orange )The14B-SSThasthermalshutdowncircuitrytopreventdamageduetooverheating.Shouldthermalshutdownoccur,theamplifierwillmute,andtheLEDwillturnorangeindicatingthiscondition.Whentheamplifierhascooledtoasafeoperatingconditionthe14B-SSTwillreturntonormaloperation.PersistentThermalshutdownindicatesstepsneedtobetakentoincreaseairflowacrosstheheatsink.(Alsoseeinstal-lationsectiononventilation).

14

13

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14B-SST Series Amplifier

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Typical Band-pass Noise

Typical THD+N Harmonic Content

Power supply artifacts are all below -95 dBuBAL+6db input shown

The harmonic content of the 14B-SST is all even order.

dBu: dB relative to a refer-ence of 0.7746 Volts

Typical THD+N Sweep

4 ohm 900w

8 ohm 600w

Graph shows that distortion isessentiallyunaffectedbyload.BAL+6dbinputshown.

Typical IMD Sweep

8 ohm 600w

4 ohm 900w

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14B-SST Series Amplifier

Typical Frequency Response 14B-SST

8ohm600w

4ohm900w

Typical Phase Response

4 ohm 900w

8 ohm 600w

Damping Factor

8 ohm reference

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14B-SST Series Amplifier

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14B-SST Series Amplifier

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Technical Specifications

Power Output 600wattsperchannelinto8ohms 900wattsperchannelinto4ohms

Gain Select and Sensitivity 29dB-2.5Vin=600W@8Ohms-(Unbalancedposition) 29dB-2.5Vin=600W@8Ohms-(Balanced+6dbposition) 23dB-5.0Vin=600W@8Ohms-(BalancedRegposition)

Input Impedance 50Kohmssingleended 58Kohmseachleg,balanced

DistortionIM or THD+noise <0.005%20Hzto20kHzat600wattsinto8W <0.007%20Hzto20kHzat900wattsinto4W

Noise Measuredwithinputshorted-20Hzto20kHz. >110dBbelowratedoutput29dBgain(-75dBu) >113dBbelowratedoutput23dBgain(-78dBu) Slew Rate >60voltspermicrosecondPower Bandwidth<1Hztoover100kHz

Damping Factor Over300at20Hz,ref.8ohms

Dimensions-LxHxD 19”versionwithhandles: 48.3x20.5x52.1cm(19”x8.05”x20.525“) See page 8 for more details

Weight:approx.36.4kg-80lbs

Power Consumption & Heat Load

AtIdle- 215WattsMax.HeatDissipation- 733Btu/Hr.Output@600W@8ohms- 1284Watts Max.HeatDissipation8ohms- 2333Btu/Hr. Output@900W@4ohms- 1980Watts Max.HeatDissipation4ohms- 3684Btu/Hr.

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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 ship-ping costs one way (usually the return portion) during the first three years of warranty coverage.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:

14B-SST_MANUAL_20061026