DaytonAudio SA1000 User manual

HIGH PERFORMANCE
SUBWOOFER AMPLIFIER
Model: SA1000 User Manual

(2)
Thank you for purchasing the Dayton Audio® SA1000 subwoofer amplier, one of the most versatile and powerful subwoofer ampliers
available. The tabletop or rack-mountable design is perfect for high-end home theater installations or DIY subwoofer projects. The SA1000
has the power to drive even the most power-hungry subwoofer systems.
FEATURES:
•Patented tracking downconverter power supply
 forhighefciency
•Class AB output stage for clean, controlled output
•Low frequency parametric EQ allows you to boost or
cut to custom-tailor the sound
•Advanced soft clip circuitry improves headroom and
protects woofers
•Manual, auto, or triggered on/off for integration into
any automated system
• Switchablesubsonicandbassboostlters
INSTALLATION:
TheSA1000isdesignedtoprovidehighdelitysubwooferamplicationandistailoredforhomeaudio,hometheater,andstudio
environments.
It is not recommended for use in DJ, pro-sound, or other high-duty-cycle applications. For home audio tabletop applications, use
the unit as it comes out of the box with the rubber feet and without the rack ears. In a custom home theater or studio where rack
mountingisavailable,simplyremovetherubberfeetandattachtheincludedrackears.Theamplierrunscoolthankstoitshigh
efciency,butcareshouldbetakentoleavesomeroomforaircirculationabovetheamplier.Stackedcomponentsthatutilize
rubber or plastic feet should provide adequate clearance in most situations.
1. Power Switch / Indicator LED
 Frontpanelpushbuttonpowerswitchturnstheamplieron
andoff.WhentheindicatorLEDislitdimly,theamplieris
instandbymode.WhentheLEDislitbrightly,theamplier
is fully active.
2. Gain
 Setstheoverallleveloftheamplier,usedtomatchthe
output of the subwoofer to the rest of the speakers
in the system.
3. Frequency
 Adjuststhelow-passcrossoverfrequencyfrom30Hzto
200Hz.WhenusingtheLeft/Rightinputs,thisadjustment
will allow you to properly integrate the subwoofer with the
satellite or main speakers. It is recommended to experiment
with different settings until the smoothest transition between
subwoofer and speakers is achieved.
4. Phase
Adjustable phase compensation from 0 to 180 degrees.
Helps the user correct improper phasing of the main speak-
ers or differing listening distances between the subwoofer
and mains, which can cause a poor acoustic summation
around the crossover point. In most situations the knob
should be left at 0 degrees, but for the advanced user it can
be set either by ear or with the aid of measurement instru-
ments.
5. EQ
The EQ adjustment knobs enable the user to custom-tailor
onebandofparametricequalizationfortheirsubwoofer,
which can be used to add boost to the low-end of the re-
sponse, or can be used to cut out an excessively loud room
resonance. The freq. knob selects the frequency for the
lter,thebandwidthknobselectshowwideornarrowthe
lteris(thehigherthebandwidth,thebroadertheeffect),
and the level knob can be used to add up to 6dB of boost or
14 dB of cut.
•High pass output for looping signal back into
distributed audio systems
•Can be easily converted between rack-mount and
 tabletopcongurations
•Heavy-duty steel chassis with brushed
aluminum faceplate
•Adjustable phase, gain, crossover, and parametric EQ
•Pop-out adjustment knobs keep settings from being
easily disturbed
•Switchable 120/230V input voltage
FRONT PANEL:

(3)
REAR PANEL:
6. AC Power
The SA1000 comes shipped standard for 120V U.S. opera-
tion; simply connect the included IEC power cord to your
wall outlet. For 230V input, remove the fuse holder, rotate
180 degrees, and re-install. In most 230V applications a
separate power cord will be required and is not included.
7. 12V Trigger Input
The 12V trigger input is a handy feature when connecting
theampliertoanautomatedaudiosystem.The3.5mm
mini-plug jack will accept up to a 12V DC output from
another device, or from a separate power supply. When
thetriggerinputisenergized,theampturnsfromstandby
to ON mode. When using the SA1000 with a home theater
receiver without a trigger output, the voltage can come from
a12Vwallwart(3.5mmtip-positiveconnector)pluggedinto
the receiver’s switched outlet and the trigger input.
8. Speaker Outputs
 Speakerleveloutputconnectionscarrytheampliedsignal
to the subwoofer drivers. Binding posts will accept bare
wire, banana plugs, or spade plugs. Two sets of outputs are
provided so multiple systems can be connected. When us-
ing both outputs the combined load must have a minimum
of 4 ohms impedance!
9. Remote Turn On
 Selectstheturn-onstimulithatwillputtheamplierinready
mode. “12V trigger” setting relies on voltage going into the
12Vtriggerinputtoactivatetheamplier.“Auto”setting
sensesasignalontheRCAline-levelinputsandautomati-
cally puts the amp in ready mode. “On” setting puts the amp
constantly in ready mode so that it can be controlled by the
master power switch on the front panel. In “Auto” mode, the
amplierwilltakeapproximately15minutestoturnofffrom
ready to standby mode.
10. Bass Boost
 Selectsabassboostlterwith+3dB@25Hz,Q=1.4.Allows
the user to add boost to the low end response without using
the built-in parametric EQ. This leaves the parametric EQ
function to address room modes to cut out an excessively
loud room resonance.
11. Subsonic Filter
 Selectsasubsoniclterwith-3dB@18Hz,Q=.8.Allowsthe
user to remove the subsonic information from the signal and
tighten the low end response of some subwoofer systems.
12. Line Inputs
 RCA-stylejacksreceivetheaudiosignalfromstandard
line-level audio sources. When used in a two-channel
stereo system, both the left and right audio inputs should
be connected and are internally summed to a mono output.
The adjustable crossover is in effect when using the left or
rightinputs.Whenusinganamplierwithanaudiosource
thatismonoandpre-ltered,theLFEinputshouldbeused;
this bypasses the onboard low-pass crossover for more ac-
curate reproduction of the incoming signal.
NOTE: Bass Boost and Subsonic Filters are active on both
LFEandL/Rinputs.
13. High Pass Output
 RCA-stylejacksallowthelinelevelinputsignaltobelooped
back into other audio equipment. The high pass signal
utilizesa12dBperoctavelterwithanoutputslopeof-3dB
@80Hz.Thisfeatureisusefulforconnectingthesignalto
distributed audio systems.
BASS BOOST / SUBSONIC FILTER SETTINGS
Frequency Response Switch Settings

(4)
daytonaudio.com
tel + 937.743.8248
[e-mail]
705 Pleasant Valley Dr.
Springboro, OH 45066
USA
Dayton Audio®Last Revised: 7/20/2023
(0.92%THD)497watts*into8ohms,950watts*into4ohms
*Basedonone-thirdpowerdutycycle
98dBA-weighted
86%
12K ohms
-3dB@18Hz,Q=.8
+3dB@25Hz,Q=1.4
-3dB@80Hz,12dBperoctave
30Hz–200Hz
0°–180°
18Hz–80Hz
0.1–1Q
-14.5dB–+6dB
17-1/2"Wx4"Hx13"D(tabletopconguration)
120/230VAC,60Hz/50Hz
120V 24W; 230V 18.4W
28.2 lbs.
Rated Power Output:
Signal to Noise Ratio:
Effi ciency:
Input Impedance:
Subsonic Filter:
Bass Boost:
High Pass Output:
Low Pass Adjustment:
Phase Adjustment:
Parametric EQ:
Frequency:
Bandwidth:
Level:
Dimensions:
Power Requirements:
Stand-By Power Rating:
Weight:
NOTES ABOUT HUM:
WhiletheSA1000hasbeendesignedtominimizethepossibilityofhuminthesubwoofersystem,itisstillpossiblethatahum
willoccurinrarecircumstances.Itssafetygroundingcancreateapathforsmallamountsof60Hzenergytotravelthroughthe
line-levelaudiosystem.Althoughnotdangerous,thisenergycancausedifcultywiththesubwooferautosignalsensingcircuit,
andattheveryleastwillinterferewiththequietenjoymentofyoursystem.Therstcourseofactionshouldbetryingtomakesure
that all of the audio components are connected to either the same electrical outlet, or at least into the same circuit branch. Next,
cable TV systems are notoriously the culprit, so be sure to try disconnecting all coaxial feeds that are connected to the system. If
this solves the problem, install a coaxial line isolator and reconnect the system. In the very worst case, a line-level audio isolator/
transformerconnectedtotheline-inofthesubwooferamplierwillusuallysolvetheproblem.
IMPORTANT SAFETY INSTRUCTIONS
Toreducetheriskofelectricshock,donotremovecover.Nouserserviceablepartsinside.Referservicingtoqualiedpersonnel.Toreducethe
riskofreandshockdonotexposeunittorainormoisture.TheunitshouldbeconnectedtoanearthgroundedACelectricalsocket.Theunit
should be operated in a well ventilated area. Minimum clearance is 2 inches from the ventilation openings.
Note:Unitissetatthefactoryfor120Voperation.Besuretochangethefusetoa5Aratingbeforeswitchingto230Voperation.
SPECIFICATIONS:
5-Year Limited Warranty
See daytonaudio.com for details
WARNING:Changesormodicationstothisunitnotexpresslyapprovedbythepartyresponsibleforcompliancecouldvoidtheuserauthorityto
operate the equipment.
WARNING: Operation of this equipment in a residential environment could cause radio interference.
Notes:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassAdigitaldevice,pursuanttopart15oftheFCCRules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct the interference at his own expense.
This device can be sold in all EU regions