EarthQuake SuperNova MKVI User manual

Class "J" Powered
Subwoofer
600WRMS
U S E R M A N U A L
Earthquake Sound Corporation | 2727 McCone Avenue, Hayward CA94545
www.earthquakesound.com
MODEL
Sound That Will Move You.
SuperNova MKVI

Congratulations and thank you for choosing the new Earthquake SuperNova
MKVI Subwoofer as a key component for your audiophile system. The MKVI
subwoofers are designed to meet the highest standards of performance and
sound quality. In addition, Earthquake Sound’s IQ certification and patented
Class “J” circuitry ensure that the subwoofer meets and exceeds all industry
standards. The new MKVI subs include many unique technologies that allow
them to deliver “World Class” performance, even under extreme operating
conditions.
TheSuperNova'sareruggedly constructedhigh qualityaudiophile subwoofers.
The Digital feedback class “J” Circuitry, allows the subs' built-in amplifier to
produce massive amounts of power with minimal heat production. This
patentedcircuitry delivershighefficiencyin therangeof 99%-- thetypical class
ABamplifierrunsatabout40to50%.
The MKVIs' amplifier offers a room correction technique that surpasses all
previous attempts. The intelligent “Back emf” drive circuit interacts with the
subwooferdesign andmemorizessystemtuningfrequencies aswell assystem
type. The information, which is stored in microprocessor, turns on a preset
group delay curve that serves as a correction reference. This information deals
only with time correction that moves the peaks and the dips in a room to a flat.
Once that is achieved, the user will resort to the final correction- EQ the room.
For that reason, Earthquake’s SuperNova MKVI is truly an intelligent system.
20Hz, 30Hz and 40Hz frequencies can be cut or boosted by a whopping 6dB,
these corrections help in producing wider range of listening position that is
unprecedentedfortheroom.
Introduction
2
The SuperNova MKVI is capable of generating
high sound pressure levels. You should exercise
caution when operating this system. Long term
exposuretohighlevelsofsoundpressurewillcausepermanent
damage to your hearing. Sound pressure levels exceeding
85dBcanbedangerouswithconstantexposure. Setyouraudio
system to a comfortable loudness level. Earthquake Sound
Corporation does not assume liability for damages resulting
from the direct use of the MKVI , and urges users to play the
MKVI atmoderatelisteninglevels.
THE CHART (ON THE SIDE) SHOWS THE U.S. GOVERNMENTS
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA)
REGULATIONS WHICH WERE IN EFFECT AT THE TIME OF THIS
PUBLICATION FOR PERMISSIBLE NOISE EXPOSURE,
PER 29CFR1910.95, TABLE G-16.
97
100
102
105
110
115
3
2
1 - 1 1/2
1
1/2
1/4 or less
SOUND LEVEL
DBA
90
92
95
8
6
4
DURATION
IN HOURS
CAUTION:
Specifications Are Subject To Change Without Notice
SuperNova MKVI

Unpacking and Warnings
Specifications & features are subject to change without notice. www.earthquakesound.com
3
ITEMIZED LIST OF INCLUDED ITEMS:
1.One(1)ACPowerCable
2.One(1)Owners'Manual
3.One(1)RegistrationCard
4.One(1)RemoteControl
5.One(1)SuperNovaSubwoofer
When you have safely removed the subwoofer from the packaging and placed it in a safe area, perform a thorough physical inspection and report any damage to the
dealer that you purchased the unit from. We suggest that you keep the original packaging, and that it should be stored in a safe, dry place in case you’re required to
transporttheunit.Thecustomizedpackagingisspeciallydesignedtoprotecttheamplifierfrompotentialdamagethatcanarisewhenshippingsuchaproduct.
Toreducetheriskoffireorelectricshock,donotexposethisproducttorainormoisture.Donotattemptto“lifttheground”byremovingthe
groundpinfromtheAC cable.MakesurethatyourhouseholdelectricalwiringsupportsproperACgroundingtechniquesbeforeplugging
in this product. Keep the heat sinks and top cover free of dust to allow for proper heat dissipation. Never expose this product to extreme
temperature. AlwaysconnecttheaudiosignalpathcablepriortoconnectingtheACmains.
WARNING!
CAUTION! No user-serviceablepartsinside. Donot attempt toremove coverorrepair thisproduct, assevereelectrical shockmay result andit may
disruptyourwarranty.
IMPORTANT! Makesure thatyour localAC voltage complieswith theunit’s label. Damagecaused by pluggingthis subwooferintoanACreceptacle of
thewrongvoltagewillnotbecoveredbywarranty.
Specifications Are Subject To Change Without Notice
SuperNova MKVI

Subwoofer Placement Guide
Why having two gains on a mono subwoofer is
agoodthing?
Often you hear the term “subwoofers are non-directional”;
this is not true. Subwoofer placement is harder to pick when
two low frequencies are crossed. The wider the room, the
moredirectionalthesubwoofer.Theeasiestsolutionis touse
two subwoofers in the front: one on the left and a second on
the right. The signal to both is mono. In some applications,
users might have small front speakers or planar speakers.
Both speakers have an early roll off in the sub-harmonics.
Theplanarneedshelpfrom150Hz ondown,having twofront
subwoofers placed on the left and the right is a healthy
solutiontothisproblem.
TwoSubs
While having two subwoofers is better than one, the MONO
signal that drives these subwoofer keeps them from
projecting the three dimensional images in the sub-
harmonics. The use of two subwoofers allows you to cross
the subs up to 150Hz sound quality, imaging and staging.
The two-front-subwoofer-system is an excellent solution to
planarspeaker’slowfrequency responseearly rolloff.When
locating these subwoofers in a close proximity to the stereo
satellite, the subs will enhance low frequency extension. It
will be better to have a stereo subwoofer to help in the lower
bassnotesandtheirplacement.
If a bass Guitar player was standing on the left side of the
stageandheplayedanEEnote(42Hz),thentherightsubwill
also respond to that and create havoc on the stage. In fact, if
you only have one single sub in the room and it’s placed on
the right side of the room, while the bass guitar player is
playing his music on the left side of the stage.As soon as he
hits the EE note, the sub speaks out on the right and
completely destroys the stage. To give you three-
dimensional front-end bass that allows you to have a low
frequency dynamic stage, Earthquake designed dual input
circuitsthatusebufferstomaintainyourstereo separationon
the processor side while mixing stereo front signals to
produce3Dbass.
The blue arrow represents the sub-harmonic
frequencies as they move always toward the
middle in a mono-two-subs- system. The red arrow
represent the lows+ the mids+ highs as they follow
the action,
Note: the breakaway and the image separation.
BETTER / This illustration shows dual subwoofer with mono signal
4
In this illustration, the stereo subwoofers keep the
sub-harmonics dynamically synchronized in
motion with the rest of the audio systems. Fully
complementing the sub-harmonics for mids and
the highs
BEST / This illustration shows dual subwoofers with stereo+mono signals
GOOD / This illustration shows a single subwoofer setup
The blue arrow represents the subharmonic
frequencies as they move always toward the sub in
the single sub system. The red arrow represents
the lows + mids + highs as they follow the action.
Note: The breakaway and the image separation.
best response when blue and the red are identical.
Specifications Are Subject To Change Without Notice
SuperNova MKVI

Front and Back Panel Overview
5
Specifications Are Subject To Change Without Notice
Remote Sensor Input
Channel Status LEDs
Auto Sensing
24dB/Oct
Lowpass
With Bypass
Removable
AC Power
Supply Cord
Individual Channel
Gain Controls
0-20 MS.Phase Delay
0°-180° Phase Shift
24dB/Oct
Switchable
Subsonic Filter
WE RECOMMEND
THE ON POSITION
20, 30 and 40Hz
Room Equalization
With 12dB range
and Boost
Required LFE Inputs
Use One Only
PHASE SHIFT
0° 180°
1
RCA
XLR
SPK
2
RCA
XLR
SPK
GAIN 1GAIN 2
PHASE DELAY
0 20ms
SUBSONIC
CORRECTION
ON OFF
ON OFF
20Hz
-6dB +6dB
30Hz
-6dB +6dB
40Hz
-6dB
110-120VAC
ON
+6dB
OFF
POWER
110-120V ~ /60Hz
220-240 ~ /50Hz
600W
CROSSOVER
-40Hz 200Hz
ON BY PASS
AUTO
IR INPUT
220-240VAC
POWERED SUBWOOFER
CAUTION VORSICHT
VOR DEM Ö FFN EN
NETZSTECKER ZIEHEN
BEFORE OPENING
PULL MAIN PLUG
RCA Inputs
XLR Inputs
Speaker Level Input
Fuse box
SuperNova MKVI

The back side of a typical processor or receiver
Dual Subwoofer Stereo Connection
6
Specifications Are Subject To Change Without Notice
PHASE SHIFT
0° 180°
1
RCA
XLR
SPK
2
RCA
XLR
SPK
GAIN 1GAIN 2
PHASE DELAY
0 20ms
SUBSONIC
EQUALIZER
ON OFF
ON OFF
20Hz
-6dB +6dB
30Hz
-6dB +6dB
40Hz
-6dB
110-120VAC
ON
+6dB
OFF
POWER
110-120V ~ /60Hz
220-240 ~ /50Hz
600W
CROSSOVER
-40Hz 200Hz
ON BY PASS
AUTO
IR INPUT
220-240VAC
POWERED SUBWOOFER
CAUTION VORSICHT
VOR DEM Ö FFN EN
NETZSTECKER ZIEHEN
BEFORE OPENING
PULL MAIN PLUG
PHASE SHIFT
0° 180°
1
RCA
XLR
SPK
2
RCA
XLR
SPK
GAIN 1GAIN 2
PHASE DELAY
0 20ms
SUBSONIC
EQUALIZER
ON OFF
ON OFF
20Hz
-6dB +6dB
30Hz
-6dB +6dB
40Hz
-6dB
110-120VAC
ON
+6dB
OFF
POWER
110-120V ~ /60Hz
220-240 ~ /50Hz
600W
CROSSOVER
-40Hz 200Hz
ON BY PASS
AUTO
IR INPUT
220-240VAC
POWERED SUBWOOFER
CAUTION VORSICHT
VOR DEM Ö FFN EN
NETZSTECKER ZIEHEN
BEFORE OPENING
PULL MAIN PLUG
The same wiring configuration can be
duplicated for the XLR inputs. NOTE: We
provide three different input types, but
do not recommend mixing input types.
LEFT LEFT SUR CENTER
RIGHT RIGHT SUR SUB
MAIN AUDIO OUTPUTS
LEFT
RIGHT
INPUT Split L/R RCA's To Amplifier s
LEFT/RIGHT Channels. '
SuperNova MKVI

Single Subwoofer Mono Connection
7
Specifications Are Subject To Change Without Notice
The back side of a typical processor or receiver
PHASE SHIFT
0° 180°
1
RCA
XLR
SPK
2
RCA
XLR
SPK
GAIN 1GAIN 2
PHASE DELAY
0 20ms
SUBSONIC
EQUALIZER
ON OFF
ON OFF
20Hz
-6dB +6dB
30Hz
-6dB +6dB
40Hz
-6dB
110-120VAC
ON
+6dB
OFF
POWER
110-120V ~ /60Hz
220-240 ~ /50Hz
600W
CROSSOVER
-40Hz 200Hz
ON BY PASS
AUTO
IR INPUT
220-240VAC
POWERED SUBWOOFER
CAUTION VORSICHT
VOR DEM Ö FFN EN
NETZSTECKER ZIEHEN
BEFORE OPENING
PULL MAIN PLUG
Usually one RCA has enough signal to
drive the IQ amplifier to its full output.
However, in some cases where signal is
too low for the IQ amp to produce its full
output, you may use a "Y" connector to
increase the amp's sensitivity.
LEFT LEFT SUR CENTER
RIGHT RIGHT SUR SUB
MAIN AUDIO OUTPUTS
SuperNova MKVI

Room Correction
8
Specifications Are Subject To Change Without Notice
The MKVIs' amplifier offers a room correction technique that surpasses all previous
attempts. The intelligent “Back emf” drive circuit interacts with the subwoofer design
and memorizes system tuning frequencies as well as system type. The information,
whichis storedinmicroprocessor,turnsonapresetgroup delaycurvethatservesas a
correction reference. This information deals only with time correction that moves the
peaks and the dips in a room to a flat. Once that is achieved, the user will resort to the
final correction- EQ the room. For that reason, Earthquake’s SuperNova MKVI is truly
an intelligent system. 20Hz, 30Hz and 40Hz frequencies can be cut or boosted by a
whopping 6dB, these corrections help in producing wider range of listening position
thatisunprecedentedfortheroom.
SuperNova MKVI
STEP 8: Your best setting is when the phase is at 180° and there is less delay.
When setting the room EQ, do not over power the speakers. As this
may cause them to bottom out or cause other more severe problems
that your warranty will not cover. To set up the room EQ, you will need
a spectrum-analyzer, or you can use the rule of thumb.
STEP 4: With the amp phase at 0° and the delay set at 0°, measure the SPL.
To begin the process of room correction, you should have two people: One
person will make adjustments at the amplifier and the other at the meter.
STEP 1: Place your subwoofer in the most desirable area.
STEP 2: Have the second person sit on a chair or sofa with a testing
microphone or SPL meter.
STEP 3: Load "white Noise" CD or 50Hz tone continuous.
STEP 5: Rotate variable delay until the dB measurement peaks (you will know
that it has peaked when the measurement begins to go back down). Rotate the
knob back to the peak section.
STEP 6: Measure angle of rotation in approximate degrees.
STEP 7: Reset all adjustments to zero(0) / Flip phase switch to 180°
and redo test.

Specifications
9
Specifications Are Subject To Change Without Notice
MODEL
Description Sealed Enclosure With Patented Passive Radiator Technology
MKVI-12PIANO / BLK MKVI-15PIANO / BLK
Subwoofer Amplifier Description:
Type: Class "J"
Power Output: 600 Watts RMS
Input Impedance: 18 kOhm (RCA)
Signal to Noise Ratio:
> 106dB (balanced) 105dB
(unbalanced) @ rated power
Inputs: ,
Functions:
Power, Room equalization, Subsonic filter,
Phase shift, Phase Delay, Lowpass/Bypass,
Channel and power status LEDs,
Dual gains internally mixed, Music sensing
Power ON/OFF,Remote control w/ mute.
XLR / RCA High-level
Frequency Range
Dimensions (HxWxD) 16 1/4" x 15 1/2" x 19 1/2" 17 3/4" x 17" x 21"
Weight 73 Lbs. 86 Lbs.
Finish Multi Layer Piano Black Lacquer or Real VeneerBlack Ash Wood
Passive Radiator 12" Patented Design 15" Patented Design
Bass Unit 12" Cast Aluminum With Flat Piston 15" Cast Aluminum With Flat Piston
Power Line Voltage 110 Volts / 240 Volts AC Select Input
Current Draw Auto OFF
Auto ON
Full Output
.08 Amp (115V)
.17 Amp (115V)
7.6 Amp (115V)
Minimum Required Signal For Full Output
One(1) RCA
105 mV Two(2) RCAs' 50 mV One(1) XLR
210 mV Speaker Line
2.4 V
Gain and Crossover @ MAX
Frequency Response 16Hz-130Hz 15Hz-120Hz
-24dB/Oct @ below 17Hz
120dB @ 10Hz 123dB @ 10Hz
-24dB/Oct @ below 15Hz
SuperNova MKVI
Subsonic ON
Crossover at MAX
Subsonic ON
Subsonic OFF
40/200Hz adjustable

Earthquake warrants the original purchaser that all Factory Sealed - Bent speaker frame, broken speaker connectors, holes in speaker
New Audio Products be free from defects in material and workmanship, under cone,surround&dustcap,burntspeakervoicecoil.
normal and proper use, for a period of five (5) years from the date of purchase - Fading, deterioration of speaker components & finish due to improper
(asshownontheoriginalbill ofsalewith serialnumberaffixed/writtenonit).The exposuretoelements.
five (5) years warranty period is valid only if the product is properly installed by - Bent amplifier casing, damaged finish on the casing due to abuse,
an Earthquake authorized party, and the warranty registration card is properly misuse,orimproperuseofcleaningmaterial.
filled out and sent to Earthquake Sound Corporation. If the product is installed - BurnttracersonPCB.
byanon-authorizedparty,aninety(90)dayswarrantyperiodapplies. - Product/part damaged due to poor packaging or abusive shipping
conditions.
(A)Five(5)yearslimitedwarrantyplancoverageguidelines: - Subsequentdamagetootherproducts.
Awarranty claim will not be valid if the warranty registration card is not properly
- First year: Earthquake pays for labor, parts, and ground freight (only in filled&returnedtoEarthquakewithacopyofthesalesinvoice.
USmainland,notincludingAlaskaandHawaii)backtocustomer.
- Second year: Earthquake pays for labor and parts only, customer must (E)ServiceRequest:
payfreightbothways.
- Third, fourth & fifth year: Earthquake pays labor only. Customer must Toreceiveproduct/sservice,contactEarthquakeservicedepartmentat
payforpartsandfreightbothways. [phone] and request an RMA number (Return Material Authorization),
items shipped without a valid RMA number will be refused. Make sure you
(B)Warning: provide us with your complete/correct shipping address, a valid phone number,
and a brief description of the problem you are experiencing with the product. In
Products(sentforrepair)thataretestedbyEarthquaketechniciansand most cases, our technicians might be able to resolve the problem over the
deemed to have no problem, will not be covered by the five (5) years limited phone,thuseliminatingtheneedtoshiptheproduct.
warranty.Customerwillbechargedaminimumofone(1)houroflabor(ongoing
rates)plusshippingchargesbacktocustomer. (F)ShippingInstructions:
(C) Earthquake agrees to repair or replace - at our option - all such defective Product/smustbepackagedinitsoriginalprotectivebox/estominimize
products/partssubjecttothefollowingprovisions: transport damage and to avoid repackaging fees. Shipper claims regarding
items damaged in transit must be presented to carrier. Earthquake Sound
- Defective products/parts have not been altered or repaired by other Corporationreservestherighttorefuseproductimproperlypacked. Originalbill
thananEarthquakefactoryapprovedtechnician. of sale must accompany product returned for service. We encourage you to
- Products/parts are not subjected to negligence,misuse,improperuse, include with the package a written description of the problem. Ship product to:
oraccident,damaged by improperline voltage, used withincompatible EarthquakeSoundCorp.2727McConeAvenue,Hayward, CA94545.Ph(510)
products, or have its serial number or any part of it altered, defaced or 732-1000. You are responsible for the cost of shipping the product to
removed,orhavebeenusedinanywaythatiscontrarytoEarthquake's EarthquakeSoundCorporation.
writteninstructions. (G)DisputesResolution:
(D)WarrantyLimitations: All disputes - between clients and Earthquake Sound Corporation -
Earthquake warranty does not cover products that have been modified or resulting from the five (5) years limited warranty policy must be resolved
abused.Includingbutnotlimitedtothefollowing: accordingtothelaws&regulationsofthecountyofAlameda-California.
- Damages to speaker cabinet and cabinet finish due to misuse, abuse,
oruseofimpropercleaningmaterials/methods.
Consumer Warranty & Guidelines
10
Specifications Are Subject To Change Without Notice
SuperNova MKVI

11
Specifications Are Subject To Change Without Notice
The SuperNova MKVI is capable of generating
high sound pressure levels. You should exercise
caution when operating this system. Long term
exposuretohighlevelsofsoundpressurewillcausepermanent
damage to your hearing. Sound pressure levels exceeding
85dBcanbedangerouswithconstantexposure. Setyouraudio
system to a comfortable loudness level. Earthquake Sound
Corporation does not assume liability for damages resulting
from the direct use of the MKVI , and urges users to play the
MKVI atmoderatelisteninglevels.
THE CHART (ON THE SIDE) SHOWS THE U.S. GOVERNMENTS
OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA)
REGULATIONS WHICH WERE IN EFFECT AT THE TIME OF THIS
PUBLICATION FOR PERMISSIBLE NOISE EXPOSURE,
PER 29CFR1910.95, TABLE G-16.
97
100
102
105
110
115
3
2
1 - 1 1/2
1
1/2
1/4 or less
SOUND LEVEL
DBA
90
92
95
8
6
4
DURATION
IN HOURS
CAUTION:

Earthquake Sound Corporation • www.earthquakesound.com • 2727 McCone Avenue Hayward, California 94545 • Phone: [phone], Fax: [phone]
Sound That Will Move You.