QSC ISA280 - Specifications Manual

Features
• Fourmodelsforlow-impedanceapplications
• ISA1350drives70voltlinesdirectlywith1500wattsperchannel
• Three“Ti”versionsincludelow-impedanceandisolated25,70,and100volt
outputsfordistributedaudiosystems
• ISA450andISA750:THX™approvedforprofessionalcinemaapplications
• Rearpanelgaincontrolsfortamperresistantoperationwith2dBdetentsforquick
andrepeatablesettings
• XLRanddetachableEuro-styleinputconnectors
• DataPortV2forusewithDPV2compatiblesignalprocessingaccessories
(XC-3,SF-3,LF-3)andDSP-3/DSP-4(withexternalpowersupply)
• Independentdefeatablecliplimitersforreduceddistortion
• Selectablehigh-passfiltersprotectspeakersandpreventspeakertransformer
saturationwithminimaleffectonprogrammaterial(30Hzor70Hzonnon-”Ti”
models,50Hzor75Hzon“Ti”models)
• ClassHcomplementarybipolaroutputcircuitryreducesACpowerdrawandwaste
heatby40%onISA750andISA800Ti,andby50%onISA1350
• Frontpanelindicatorsincludepower,signal,andclip(andprotectonISA1350)
• Coveredbarrierstripoutputconnectorsforsafetyagencycompliance
• Automaticvariable-speedfanforquietnormaloperationwithmaximumcooling
ondemand
• Rear-to-frontairflowkeepsequipmentrackscool
• Stereo,bridge,orparalleloperatingmodes
• ComprehensiveprotectioncircuitryincludingDC,infrasonic,thermaloverload,and
shortcircuitprotection
• 3-yearwarrantyplusoptional3-yearextendedservicecontract
“Ti” Models
• Isolated25,70,100volt,andlow-impedanceoutputsavailablesimultaneously
• Simplebarrierstripconnectiondeterminesoutputmode
• “Ti”modelshavefullyisolated25,70,and100voltoutputs
The ISA Installed System Amplifiers are designed
to meet the needs of sound system designers
and contractors worldwide. Three models feature
isolated 25, 70, and 100 volt outputs for distributed
sound systems, while four low-impedance models
are rated for 2 ohm operation. The ISA 1350 drives
70 volt lines directly with 1500 watts per channel.
Versatile loading options and a comprehensive
set of features make the ISA Series a rugged,
cost-effective power solution for any permanently
installed sound system.
ISA Series
ISA Power Amplifiers
Watts per channel
Model 70V* 8Ω** 4Ω** 2Ω
†
ISA280 – 185 280 430
ISA450 – 260 425 700
ISA750 – 450 650 1200
ISA1350 1500
††
800 1300 2000
ISA300Ti 300 185 280 430
ISA500Ti 500 260 425 700
ISA800Ti 800 450 650 1200
* 50 Hz – 16 kHz, 0.5% THD
** 20 Hz – 20 kHz, 0.1% THD
†1 kHz, 1% THD
†† Direct Output, 70V, less than 0.5% THD, 20 – 20 kHz
ProfessionalPowerAmplifiers
ISA280 | ISA450 | ISA750 | ISA1350 | ISA300Ti | ISA500Ti | ISA800Ti