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QS 218
World-widedistributor FBT
REINFORCEMENT SUBWOOFER
FBTElettronicaS.p.A. www.fbt.it
KEY FEATURES Enclosure in 1 8 m m birch wood Custom 2 x 18” high power woofer with 4” coil Designed tostrenghtenandextendthelowfreq. rangeoftheQUBEtouringsystems
APPLICATION High performance touring
GENERAL DESCRIPTION The QS 218 is a front-loaded bass reflex subwoofer. Equipped with a dual high excursion 18” woofer with 4” coil. The specially designedreflexportandefficientvoicecoilcoolingsystemenablestheQS218toachievehighSPLwithminimalpower compression. Designedforhighperformance touring,with its outstanding bass extension andhighsoundlevels(146dBSPL),the QS 218 isthe ideal companion for QUBE QSA 210 line array system but is compatible with all QUBE models. Applications include, sound reinforcementsandtouring. Ruggedlyconstructedof18mmbirchwoodtheenclosureisinternallybracedtoavoidvibrationatextremesoundpressurelevel. Easytocarrythanksto4rearwheels(optional),thecabinetisfinishinadurableandscratchresistantpaint. Theconnectorpanel’shavedualNeutrikNL4speakonforreliableinputandloopthroughconnections.
TECHNICAL SPECIFICATIONS ELECTRICAL PERFORMANCE SUBWOOFER 2800W RMS 1400W RMS 5600W RMS 2/4 Ohm 28Hz-300Hz 103dB 143db 146dB omnidirectional 100Hz passive 24Hz-24dB oct.
CONT. SPL:halfspace,basedonrecommended ampratingandLFtransduceraveragesensitivitydata,125mStimeaverage PEAKSPL:halfspace,basedonshorttermapplicablepower ratingandsystempeaksensitivity,10mStimeaverage
PHYSICAL 2x18” - coil Ø4” 1070x657x730mm 220 lbs 0.7”birchwood
QS 218
World-widedistributor FBT
REINFORCEMENT SUBWOOFER DIMENSION DRAWINGS
1070mm
FBTElettronicaS.p.A. www.fbt.it
INPUT PANEL
DESIGNEDBY
730mm
FOOTHILLRANCH,CA,U.S.A.
QS 218 REINFORCEMENTSUBWOOFER
LF
+
+ INPUT
dBSPL 110 105 100 95 90 85 80 75 70 65 60 55 50 10Hz 20
FULLSPACEFREQUENCYRESPONSE
1+ 2+
IN
OUT
1+ 2+
OUTPUT NOMINALIMPEDANCE RECOMMENDEDAMPLIFIER SHORTTERM(IEC268-5) LONGTERM(IEC268-5) FREQUENCYRESPONSE(@-6dB)
50
100 200
500
1k
2k
5k
10k
20k 40k
ARCHITECTURAL & ENGINEERING SPECS. The subwoofer loudspeaker shall incorporate two 18” LF transducer with 4”coil. System frequency responseshallvary nomorethan+/-6dBfrom28Hzto 300Hzmeasuredonaxis. The loudspeaker shall produce a sound pressure level(SPL)of146dBon axisat1meter. Itshallhandle1400wattsofamplifierpowerlongterm(AES standard) and shallhaveanominalimpedanceof8ohm. Itshallbeconstructedof18mm birchwoodwithinternalreinforcement. InputconnectorsshallbetwoNL4 speakon. Thefrontofloudspeakershallbecoveredwithapowder-coatedperforated grillewithfoam. Thesubwoofer loudspeakershallbetheQUBEmodelQS218
4ohm 2800Wrms 5600Wrms 1400W 28Hz-300Hz 103dB 140,5dB
MANUFACTUREDINEEC
BLOCK DIAGRAM
