MODEL
SuperNova MKVI
Class "J" Powered
Subwoofer
600WRMS
U S E R M A N U A L
Earthquake Sound Corporation | 2727 McCone Avenue, Hayward CA 94545
Sound That Will Move You.
SuperNova MKVI
Unpacking and Warnings
ITEMIZED LIST OF INCLUDED ITEMS:
1. One (1)AC Power Cable
2. One (1) Owners' Manual
3. One (1) Registration Card
4. One (1) Remote Control
5. One (1) SuperNova Subwoofer
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
transport the unit.The customized packaging is specially designed toprotect the amplifier from potential damage that can arise when shipping such a product.
To reduce the risk of fire or electric shock, do not expose this product to rain or moisture. Do not attempt to “lift the ground” by removing the
WARNING!
ground pin from theAC cable. Make sure that your household electrical wiring supports properAC grounding techniques before plugging
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. Always connect the audio signal path cable prior toconnecting theAC mains.
No user-serviceable parts inside. Do not attempt to remove cover or repair this product, as severe electrical shock may result and it may
disrupt your warranty.
CAUTION!
Make sure that your localAC voltage complies with the unit’s label. Damage caused by plugging this subwoofer into anAC receptacle of
the wrong voltage will not be covered by warranty.
IMPORTANT!
Specifications Are Subject To Change Without Notice
3
SuperNova MKVI
Subwoofer Placement Guide
GOOD / This illustration shows a single subwoofer setup
Why having two gains on a mono subwoofer is
a good thing?
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.
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
more directional the subwoofer. The easiest solution is to use
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.
The planar needs help from 150Hz on down, having two front
subwoofers placed on the left and the right is a healthy
solution tothis problem.
Note: The breakaway and the image separation.
best response when blue and the red are identical.
BETTER / This illustration shows dual subwoofer with mono signal
Two Subs
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,
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
planar speaker’s low frequency response early roll off. 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
bass notes and their placement.
Note: the breakaway and the image separation.
If a bass Guitar player was standing on the left side of the
stage and he played an EE note (42Hz), then the right sub will
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
circuits that use buffers to maintain your stereo separation on
the processor side while mixing stereo front signals to
produce 3D bass.
BEST / This illustration shows dual subwoofers with stereo+mono signals
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
Specifications Are Subject To Change Without Notice
4
SuperNova MKVI
Front and Back Panel Overview
24dB/Oct
Switchable
Subsonic Filter
0°-180° Phase Shift
WE RECOMMEND
THE ON POSITION
0-20 MS.Phase Delay
CROSSOVER
SUBSONIC
PHASE DELAY
PHASE SHIFT
20, 30 and 40Hz
24dB/Oct
Individual Channel
Gain Controls
Room Equalization
Lowpass
ON
BY PASS
ON
OFF
20Hz
0
20ms
0°
180°
With 12dB range
With Bypass
and Boost
Channel Status LEDs
-40Hz
ON
200Hz
-6dB
+6dB
GAIN 2
GAIN 1
30Hz
40Hz
2
1
AUTO
OFF
Required LFE Inputs
Use One Only
Auto Sensing
-6dB
-6dB
+6dB
+6dB
RCA
XLR
RCA
XLR
IR INPUT
RCA Inputs
Remote Sensor Input
CORRECTION
ON
XLR Inputs
110-120VAC
SPK
SPK
Removable
AC Power
Supply Cord
220-240VAC
Speaker Level Input
OFF
POWER
110-120V ~ /60Hz
220-240 ~ /50Hz
600W
POWEED SUBWOOFER
CAUTION VORSICHT
BEFORE OENING
PULL MAIN PLUG
VOR DEM ÖFFNEN
NETZSTECKER ZIEHEN
Fuse box
Specifications Are Subject To Change Without Notice
5
SuperNova MKVI
Dual Subwoofer Stereo Connection
INPUT
LEFT
Split L/R RCA's To Amplifier's
LEFT/RIGHT Channels.
RIGHT
The back side of a typical processor or receiver
MAIN AUDIO OUTPUTS
LEFT
LEFT SUR
CENTER
RIGHT
RIGHT SUR
SUB
CROSSOVER
SUBSONIC
PHASE DELAY
PHASE SHIFT
CROSSOVER
SUBSONIC
PHASE DELAY
PHASE SHIFT
ON
BY PASS
ON
OFF
20Hz
ON
BY PASS
ON
OFF
20Hz
0
20ms
0°
180°
0
20ms
0°
180°
-40Hz
ON
200Hz
-6dB
+6dB
-40Hz
ON
200Hz
-6dB
+6dB
2
GAIN 1
GAIN 2
GAIN 1
30Hz
40Hz
30Hz
40Hz
2
1
2
1
AUTO
OFF
AUTO
OFF
-6dB
-6dB
+6dB
+6dB
-6dB
-6dB
+6dB
+6dB
RCA
XLR
RCA
XLR
XLR
RCA
XLR
IR INPUT
IR INPUT
EQUALIZER
ON
EQUALIZER
ON
110-120VAC
110-120VAC
SPK
SPK
SPK
SPK
220-240VAC
220-240VAC
OFF
OFF
POWER
POWER
110-120V ~ /60Hz
220-240 ~ /50Hz
600W
110-120V ~ /60Hz
220-240 ~ /50Hz
600W
POWERED SUBWOOFER
CAUTION VORSICHT
BEFORE OPENING
PULL MAIN PLUG
POWERED SUBWOOFER
CAUTION VORSICHT
BEFORE OPENING
PULL MAIN PLUG
VOR DEM ÖFFNEN
NETZSTECKER ZIEHEN
VOR DEM ÖFFNEN
NETZSTECKER ZIEHEN
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.
Specifications Are Subject To Change Without Notice
6
SuperNova MKVI
Single Subwoofer Mono Connection
The back side of a typical processor or receiver
MAIN AUDIO OUTPUTS
LEFT
LEFT SUR
CENTER
RIGHT
RIGHT SUR
SUB
CROSSOVER
SUBSONIC
PHASE DELAY
PHASE SHIFT
ON
BY PASS
ON
OFF
20Hz
0
20ms
0°
180°
-40Hz
ON
200Hz
-6dB
+6dB
GAIN 2
GAIN 1
30Hz
40Hz
2
1
AUTO
OFF
-6dB
-6dB
+6dB
+6dB
RCA
XLR
RCA
XLR
IR INPUT
EQUALIZER
ON
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.
110-120VAC
SPK
SPK
220-240VAC
OFF
POWER
110-120V ~ /60Hz
220-240 ~ /50Hz
600W
POWERED SUBWOOFER
CAUTION VORSICHT
BEFORE OPENING
PULL MAIN PLUG
VOR DEM ÖFFNEN
NETZSTECKER ZIEHEN
Specifications Are Subject To Change Without Notice
7
SuperNova MKVI
Room Correction
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,
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 unprecedented forthe room.
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.
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 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 4: With the amp phase at 0° and the delay set at 0°, measure the SPL.
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.
STEP 8: Your best setting is when the phase is at 180° and there is less delay.
Specifications Are Subject To Change Without Notice
8
SuperNova MKVI
Specifications
MODEL
MKVI-12PIANO / BLK
MKVI-15PIANO / BLK
Description
Sealed Enclosure With Patented Passive Radiator Technology
Dimensions (HxWxD)
16 1/4" x 15 1/2" x 19 1/2"
73 Lbs.
17 3/4" x 17" x 21"
86 Lbs.
Weight
Frequency Response Subsonic ON
16Hz-130Hz
15Hz-120Hz
Crossover at MAX
Frequency Range
-24dB/Oct @ below 17Hz
120dB @ 10Hz
-24dB/Oct @ below 15Hz
123dB @ 10Hz
Subsonic ON
Subsonic OFF
40/200Hz adjustable
Bass Unit
12" Cast Aluminum With Flat Piston
12" Patented Design
15" Cast Aluminum With Flat Piston
15" Patented Design
Passive Radiator
Finish
Multi Layer Piano Black Lacquer or Real Black Ash Wood Veneer
Subwoofer Amplifier
Description:
Type: Class "J"
Inputs: XLR / RCA, High-level
Power Output: 600 Watts RMS
Input Impedance: 18 kOhm (RCA)
Signal to Noise Ratio:
> 106dB (balanced) 105dB
(unbalanced) @ rated power
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.
Power Line Voltage
110 Volts / 240 Volts AC Select Input
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
.08 Amp (115V)
Current Draw
Auto OFF
Auto ON
.17 Amp (115V)
7.6 Amp (115V)
Full Output
Specifications Are Subject To Change Without Notice
9
SuperNova MKVI
Consumer Warranty & Guidelines
Earthquake warrants the original purchaser that all Factory Sealed
New Audio Products be free from defects in material and workmanship, under
normal and proper use, for a period of five (5) years from the date of purchase
(as shown on the original bill of sale with serial number affixed/written on it). The
five (5) years warranty period is valid only if the product is properly installed by
an Earthquake authorized party, and the warranty registration card is properly
filled out and sent to Earthquake Sound Corporation. If the product is installed
by a non-authorized party, a ninety (90) days warranty period applies.
-
-
-
Bent speaker frame, broken speaker connectors, holes in speaker
cone, surround &dust cap, burnt speaker voice coil.
Fading, deterioration of speaker components & finish due to improper
exposure toelements.
Bent amplifier casing, damaged finish on the casing due to abuse,
misuse, or improper use of cleaning material.
Burnt tracers on PCB.
-
-
Product/part damaged due to poor packaging or abusive shipping
conditions.
(A) Five (5) years limited warranty plan coverage guidelines:
-
Subsequent damage toother products.
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
US mainland, not includingAlaska and Hawaii) back tocustomer.
Second year: Earthquake pays for labor and parts only, customer must
pay freight both ways.
Third, fourth & fifth year: Earthquake pays labor only. Customer must
pay forparts and freight both ways.
filled &returned toEarthquake with a copy of the sales invoice.
(E) Service Request:
To receive product/s service, contact Earthquake service department at
(510) 732-1000 and request an RMA number (Return Material Authorization),
items shipped without a valid RMA number will be refused. Make sure you
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
most cases, our technicians might be able to resolve the problem over the
phone, thus eliminating the need toship the product.
(B) Warning:
Products (sent for repair) that are tested by Earthquake technicians and
deemed to have no problem, will not be covered by the five (5) years limited
warranty. Customer will be charged a minimum of one (1) hour of labor (ongoing
rates) plus shipping charges back tocustomer.
(F)Shipping Instructions:
(C) Earthquake agrees to repair or replace - at our option - all such defective
products/parts subject tothe following provisions:
Product/s must be packaged in its original protective box/es to minimize
transport damage and to avoid repackaging fees. Shipper claims regarding
items damaged in transit must be presented to carrier. Earthquake Sound
Corporation reserves the right to refuse product improperly packed. Original bill
of sale must accompany product returned for service. We encourage you to
include with the package a written description of the problem. Ship product to:
Earthquake Sound Corp. 2727 Mc ConeAvenue, Hayward, CA94545. Ph (510)
732-1000. You are responsible for the cost of shipping the product to
Earthquake Sound Corporation.
-
Defective products/parts have not been altered or repaired by other
than an Earthquake factoryapproved technician.
-
Products/parts are not subjected to negligence, misuse, improper use,
or accident, damaged by improper line voltage, used with incompatible
products, or have its serial number or any part of it altered, defaced or
removed, or have been used in any way that is contrary to Earthquake's
written instructions.
(G)Disputes Resolution:
(D) Warranty Limitations:
All disputes - between clients and Earthquake Sound Corporation -
resulting from the five (5) years limited warranty policy must be resolved
according tothe laws ®ulations of the county ofAlameda -California.
Earthquake warranty does not cover products that have been modified or
abused. Including but not limited tothe following:
-
Damages to speaker cabinet and cabinet finish due to misuse, abuse,
or use of improper cleaning materials/methods.
Specifications Are Subject To Change Without Notice
10
The SuperNova MKVI is capable of generating
high sound pressure levels. You should exercise
caution when operating this system. Long term
S O U N D LE VE L
D BA
D U R ATI O N
I N H O U R S
CAUTION:
90
92
95
8
6
4
3
TH E CH ART (ON TH E SIDE) SH OWS TH E U.S. GOVERNM ENTS
OCCUPATIONAL SAFETY AND H EALTH ADM INISTRATION (OSH A)
REGULATIONS WH ICH WERE IN EFFECT AT TH E TIM E OF TH IS
P UBLICATION FOR P ERM ISSIBLE NOISE EXP OSURE,
P ER 29CFR1910.95, TABLE G-16.
exposure to high levels of sound pressure will cause permanent
damage to your hearing. Sound pressure levels exceeding
85dB can be dangerous with constant exposure. Set your audio
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 at moderate listening levels.
97
2
100
102
105
110
115
1 - 1 1/2
1
1/2
1/4 or less
Specifications Are Subject To Change Without Notice
11
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