Dayton Audio DTA-100LF User manual

DTA-100LF
Dayton Audio
Brand
Dayton Audio
Model
DTA-100LF
Category
Supplementary music equipment
Type
User manual

Dayton Audio DTA-100LF is a compact desktop low-frequency amplifier featuring 100 watts of power, a 24dB/oct low-pass filter, and a fully adjustable parametric EQ, allowing for precise integration with your existing audio system. Its small size makes it perfect for tight spaces, while the built-in auto turn-on/off ensures easy operation. Connect your subwoofer to the speaker-level outputs and adjust the gain, crossover frequency, and phase to achieve seamless blending with your main speakers. The subsonic filter helps protect your subwoofer from damage caused by excessive low frequencies.

Dayton Audio DTA-100LF is a compact desktop low-frequency amplifier featuring 100 watts of power, a 24dB/oct low-pass filter, and a fully adjustable parametric EQ, allowing for precise integration with your existing audio system. Its small size makes it perfect for tight spaces, while the built-in auto turn-on/off ensures easy operation. Connect your subwoofer to the speaker-level outputs and adjust the gain, crossover frequency, and phase to achieve seamless blending with your main speakers. The subsonic filter helps protect your subwoofer from damage caused by excessive low frequencies.

Model: DTA-100LF User Manual
DESKTOP
LOW-FREQUENCY
AMPLIFIER WITH EQ
2
1. Readtheseinstrucons.
2. Keeptheseinstrucons.
3. Heed all warnings.
4. Followallinstrucons.
5. Donotusethisapparatusnearwater.
6. Cleanonlywithadrycloth.
7. Donotblockanyvenlaonopenings.Installinaccordancewiththemanufacturer’sinstrucons.
8. Donotinstallnearanyheatsourcessuchasradiators,heatregisters,stoves,orotherapparatus
(includingampliers)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providedplugdoesnot
tintoyouroutlet,consultanelectricianforreplacementoftheobsoleteoutlet.
10. Protectthepowercordfrombeingwalkedonorpinchedparcularlyatplugs,conveniencerecepta-
cles,andthepointwheretheyexitfromtheapparatus.
11. Onlyuseaachments/accessoriesspeciedbythemanufacturer.
12. Useonlywiththecart,stand,tripod,bracket,ortablespeciedbythemanufacturer,orsoldwith
theapparatus.Whenacartisused,usecauonwhenmovingthecart/apparatuscombinaonto
avoidinjuryfromp-over.
13. Unplugthisapparatusduringlightningstormsorwhenunusedforlongperiodsofme.
14. Referallservicingtoqualied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ob-
jectshavefallenintotheapparatus,theapparatushasbeenexposedtorainormoisture,doesnot
operatenormally,orhasbeendropped.
15. Theapparatusshallnotbeexposedtodrippingorsplashingandthatnoobjectslledwithliquids,
suchasvases,shallbeplacedontheapparatus.
16. CAUTION:Servicinginstruconsareforusebyqualiedservicepersonnelonly.Toreducetheriskof
electricshock,donotperformanyservicingotherthanthatcontainedintheoperanginstrucons
unlessyouarequaliedtodoso.
17.
WARNING:Toreducetheriskofreorelectricshock,donotexposethisapparatustorainormoisture.
18. Whereanappliancecouplerisusedasthedisconnectdevice,thedisconnectdeviceshallremain
readilyoperable.
CAUTION:Toreducetheriskofelectricshock,donotremove
cover(orback).Nouser-serviceablepartsinside.Referservicing
toqualiedservicepersonnel.
Explanaon of Graphical Symbols
Thelightningashwitharrowheadsymbol,within
anequilateraltriangle,isintendedtoalertyoutothe
presenceofuninsulated“dangerousvoltage”within
theproduct’senclosurethatmaybeofsucientmag-
nitudetoconstuteariskofelectricshocktopersons.
Theexclamaonpointwithinanequilateraltriangle
isintendedtoalertyoutothepresenceofimportant
operangandmaintenance(servicing)instruconsin
theliteratureaccompanyingtheproduct.
Important Safety Instrucons
3
Introducon
ThankyouforpurchasingtheDaytonAudio®DTA-100LFlow-frequencydesktop
amplier;oneofthemostversaleandcompactsubwooferampliersavailable.
Thecompactdesignisperfectforfocusedapplicaonwherespaceisatapremium,
whilethein-depthEQandcrossoverallowtheampliertobecustom-tailoredto
suitthelisteningenvironment.
Features
• Compactdesktopsize,perfectforbigsoundfromasmallpackage
• Adjustablelowpassfrequencyandphasecontrolforpreciseintegraon
• Subsoniclterforincreasedcontrolandsubwooferprotecon
• Alowfrequency,fullyadjustablePEQbandallowsforbasstobeadjustedto
yourpreference,orforcungdownonanoverpoweringroommode
• Automacturnon/oforsetitandforgetoperaon
• Builtinpowersupplywithautomac110/220Vinputvoltageswitching
What’s Included
1xDTA-100LFamplier
2xMounngbrackets
1xACpowercord
1xUsermanual
Installaon
TheDTA-100LFcanbeconvenientlymountedontoorunderneathashelfordesk
withtheincludedmounngbrackets.Thebracketscanbeaachedtothesideof
theamplierbyremovingthescrewsonthesidesoftheamplierwithaPhillips
screwdriverandreplacingthemwiththebracketsinplace.
Donotblockthesidevents.EventhoughtheDTA-100LFwilltypicallyruncool,
thesideventsallowairtocirculatethroughthechassis.Donotblockthevents
foranyreason.
IMPORTANT! DO NOT BLOCK VENTS!
DTA-100LF
Shelf
4
Front Panel
1. Gain -Setstheoverallleveloftheamplier,whichisusedtomatchtheoutputofthe
subwoofertotherestofthespeakersinthesystem.Gainadjustmentdoesnotaectline
outpass-throughlevel.
2. Low Pass Frequency Adjustment -Adjuststhe24dB/octlow-passcrossover
frequencyfrom30Hzto200Hz.Thisadjustmentwillallowyoutoproperlyintegrate
thesubwooferwithmainorsatellitespeakers.Itisrecommendedtoexperimentwith
dierentsengsunlthesmoothesttransionbetweensubwooferandspeakersis
achieved.Ifyouareusingasourcethatalreadycreatesalowpassed,linelevel(RCA)
subwooferoutput(likeasuboutjackonareceiver),itisimportantthatyouonlyuse
thelowpasslteradjustmentonthereceiverorontheDTA-100LFtoavoidinteracon
betweentheselters.Ifyouchoosetouseyourreceiver’slowpasslteradjustment,set
theFREQknobontheDTA-100LFtoitsmaximumsengof200Hz.
3. Phase -Thephaseadjustmentdialallowsyoutocompensatefordierencesin
theacouscalandelectricalcharacteriscsbetweenthesubwooferandthemain
systemspeakers.Therelavelocaonsofspeakersinthesystemcancausesignicant
disturbancesinspeakerinteraconduetomedelayissues,orthedestrucvephase
interferencesthatcanoccuratcertainfrequencies.Experimentaonwiththisdialin
conjunconwithalteringthelocaonofthesubwoofercandramacallyimprove
systemintegraon.
4. Power LED -Theampliercanbeturnedonbyeitherthemainpowerswitchor
AUTOON.WhentheindicatorLEDisred,theamplierisinstandbymode.Whenthe
LEDisblue,theamplierisfullyacve.
5. EQ -TheEQadjustmentknobsenablesyoutocustom-tailoronebandofparametric
equalizaonfortheirsubwoofer,whichcanbeusedtoaddboosttothelow-endofthe
response,orcanbeusedtocutoutanexcessivelyloudroomresonance.TheFREQknob
selectsthefrequencyforthelterbetween10to80Hz.Thebandwidthknobselectshow
wideornarrowthelteris(thehigherthebandwidth,thebroadertheeect).Thelevel
knobcanbeusedtoaddupto5dBofboostor11.5dBofcut.
PHASE
POWER
90°
0° 180°30Hz 200Hz
105Hz
0 10
5
FREQGAIN
10 80
25 73
39 60
46 53
32 67
FREQ BANDWIDTH LEVEL
-11.5 +6
-12.5 4.5
-7 0
-5 -2
-10 2.5
0.1 1
0.5
LOW PASS EQ
DTA-100LF
5
Rear Panel
1. Auto On -TheampliercansensesignalsontheRCAline-levelinputsand
automacallyacvatetheamplier.(pg.6)
2. EQ -ThesinglebandEQsetonthefrontpanelcanbedeacvatedbycompletely
removingitfromthesignalpath.EnablingtheEQfunconwilldroptheoveralloutput
leveloftheamplierby6dB.Thisistoallowuptoa6dBboostusingtheEQknobs
withouttheriskofover-drivingtheamplier.
3. Line Output -StereoRCAjacksallowthelinelevelstereoinputsignaltobeoutput
tootheraudioequipment.Thisfullrangesignalmirrorstheaudioontheinputandis
notsummedtomonooraectedbythegain,EQ,lowpasslter,phase,orsubsonic
lteradjustments.
4. Line Input -StereoRCAjacksreceivetheaudiosignalfromstandardline-levelaudio
sources.Whenpossible,boththeleandrightaudioinputsshouldbeconnectedand
areinternallysummedtoamonooutput.IfusingamonoRCASUBOUToranother
monoinputsource,simplyconnectittotheLEFTRCAinputandleavetheRIGHTRCA
inputdisconnected.
5. Subsonic Filter -Adjuststhe12dB/octhigh-passlterfrom0Hzto100Hz.Thishelps
removesubsonicinformaonfromthesignalandghtenthelow-endresponseofsome
subwoofersystems.Thiscanbeparcularlyusefulforprotecngportedsubwoofersystems.
6. Speaker Output -Speakerleveloutputconneconscarrytheampliedsignaltoa
passivesubwooferorbassshaker.Theincludedterminalscanacceptbarewire,spade
plugs,orbananaplugs.TheminimumratedloadfortheDTA-100LFoutputis4ohms.
7. AC Power -TheDTA-100LFiscapableof110Vand220Voperaon.Theinternalpower
supplycanautomacallysensethepowerinputandoperateappropriately;simply
connecttheappropriateACpowercordtoyourwalloutlet.
8. Power Switch -Therearpanelpowerswitchturnstheamplieronando.Whenthe
frontpowerindicatorisred,theamplierisinstandbymode.WhentheLEDisblue,the
amplierisfullyacve.
OUT PUT
LINE OUT LINE IN
4Ω MIN
OFF
POWER
ON
FREQ
SUBSONIC FILTER
OFF 100Hz
50Hz
DTA-100LF
Desktop Low-Frequency Amplifier
AC 100V~240V
50Hz/60Hz
L
R
L
R
OFF ON
AUTO ON
OFF ON
EQ
6
Connecons
Input -UsingastereoormonoRCAcable,connecttheLFEOUT,SubOUTor
otherlinelevelaudiooutputtotheDTA-100LF’sLINEIN.SincetheLINEOUT
sendsafullrangeaudiooutputandisnotaectedbythebuiltinEQ,crossover,
orsubsonicltertheDTA-100LFcanbeplacedeitherbeforeoraerafullrange
amplierorpoweredspeakers.
Output -Using16AWG(minimum)2-conductorstrandedspeakerwirestrip
approximately1/2″ofshieldingfromeachendandtwisttogethersothatthere
arenoloosestandsthatcancauseshortsanddamagetheamplier.Withthe
amplierpoweredoconnectthepreparedwiretotheappropriate+and-
terminalsonboththeamplierandanunpoweredsubwoofer.Verifythatthe
ampandsubwooferareconnectedusingthesamepolaritytoexperiencethefull
poweroftheDTA-100LF.
Operaon
Power -TopowerontheDTA-100LFtogglethePOWERON/OFFswitch.Ifthe
AUTO-ONswitchis“o”theamplierwillbeginworkingimmediately.
Automac Power Sensing -TheAUTOONfeatureishandywhenusingtheDTA-
100LFinconjunconwithotheraudioequipmentandcanautomacallyturnon
whenaudioisdetected.Whenan8mVsignalisdetectedontheRCAinputsthe
amplierturnsfromSTANDBYtoONmode.Theamplierwillautomacallyenter
STANDBYwhennoaudiohasbeendetectedforeenminutes.
Crossover -Thelowpasslteradjustmentsetsthefrequencyatwhichaudio
contentwillpasstotheDTA-100LFSpeakerOutput.Alowpassltermeansthat
thefrequenciesbelowthetargetfrequencywillbeunaected,andthehigher
frequencieswillberemoved.Removinghigherfrequencieswillallowtheamplier
andconnectedsubwoofertoproducecleardistoron-freeaudio.Adjustthelow
passlterfrequencybetween30Hzto200Hzsothereisanaturalsounding
transionfromthemainspeakersandtheconnectedsubwoofer.Thisvaluewill
changedependingonthesizeofthespeakersandsubwooferbeingused.
Phase -Thephasesengisusedtocompensateforthesubwoofer’slocaon
relavetothemainspeakers,andcreateasmoothertransionfromthemain
speakerstotheconnectedsubwoofer.
7
Specicaons
MaximumOutputPower ......................................................70W/8Ω;100W/4Ω
THD ....................................................................................... 1%
FrequencyResponse ............................................................20Hz-180Hz+/-3dB
SignaltoNoiseRao .............................................................95dB
InputSensivity .................................................................... 200mV
LowPassCrossoverRange ....................................................30Hz-200Hz
PhaseAdjustment ................................................................0°-180°
LineInputImpedance ........................................................... 22kΩ
LineOutImpedance .............................................................4kΩ
PowerInputVoltageRange ..................................................100-240VAC
StandbyPower .....................................................................1.8W
MaxPowerConsumpon .....................................................150W
Dimensions ...........................................................................7.5″x2″x5.5″
OverallLength(includingknobsandconnectors) ................8.74″
Weight ..................................................................................3.3lbs.
Dayton Audio®Last Revised: 6/22/2021
daytonaudio.com
tel + 937.743.8248
info@daytonaudio.com
705 Pleasant Valley Dr.
Springboro, OH 45066
USA
5-Year Limited Warranty
See daytonaudio.com for details
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Dayton Audio DTA-100LF User manual

DTA-100LF
Dayton Audio
Brand
Dayton Audio
Model
DTA-100LF
Category
Supplementary music equipment
Type
User manual

Dayton Audio DTA-100LF is a compact desktop low-frequency amplifier featuring 100 watts of power, a 24dB/oct low-pass filter, and a fully adjustable parametric EQ, allowing for precise integration with your existing audio system. Its small size makes it perfect for tight spaces, while the built-in auto turn-on/off ensures easy operation. Connect your subwoofer to the speaker-level outputs and adjust the gain, crossover frequency, and phase to achieve seamless blending with your main speakers. The subsonic filter helps protect your subwoofer from damage caused by excessive low frequencies.

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