Earthquake Sound SuperNova MKV Seamless Transition Between Subwoofer and Speakers, Audible Frequency Range of Musical Instruments & Vocals, Independent Test Report, SuperNova MKV Performance & Birth Certificate

Seamless Transition Between Subwoofer and Speakers
The fine tuning process includes
creating a smooth transition of music
between the SuperNova MKV and the
next speaker in line : usually a woofer or
a large midrange. As shown in the
graph across, a smooth transition
between lower and upper bass is
directly relative to the crossover setting
and the capability of the next speaker in
line to reproduce low frequencies.
FREQUENCY RANGE OF MUSICAL INSTRUMENTS AND VOCALS
VOCALS
WOODWIND
BRASS
STRINGS
KEYBOARDS
PERCUSSION
10Hz 20Hz 30Hz 40Hz 50Hz 60Hz 70Hz 80Hz 90Hz
100Hz 200Hz 300Hz 400Hz 500Hz 600Hz 700Hz 800Hz 900Hz
1kHz 2kHz 3kHz 4kHz 5kHz 6kHz 7kHz 8kHz 9kHz
10kHz
SUB
BASS MID BASS UPPER BASS LOWER MID MID UPPER MID TREBLE
AUDIBLE FREQUENCY RANGE SUBDIVISIONS
up to 22kHz
Audible Frequency Range of Musical Instruments & Vocals
Independent Test Report
MODEL DRIVER dB@40Hz dB@35Hz dB@30Hz dB@25Hz dB@20Hz dB@18Hz
EARTHQUAKE MKII-15 15" 117 117 116 115 102 98
B & W 4000-ASW 15" 115 115 115 114 102 N/A
BAG END S-18E 18" 110 112 110 108 100 N/A
TRIAD PLATINUM 18" N/A 110 N/A 106 92 90
VELODYNE F-1800R 18" 112 112 113 110 98 N/A
ENERGY ES-18XL 18" 114 112 112 106 98 90
PARADIGM SERVO-15 15" 112 110 110 106 96 90
BAG END INFRA-18 18" 108 108 106 102 90 N/A
EARTHQUAKE MKII-12 12" 113 113 113 106 98
M & K MX-5000 12" N/A 110 N/A 106 92
VELODYNE HGS-12 12" 106 105 108 102 90
LINN AV5150 12" N/A 110 N/A 104 N/A
dB measurements as tested by WIDESCREEN REVIEW , Buyer's Guide, 2000.
SuperNova MKV Performance & Birth Certificate
SPEAKERS.
Active driver assembled by
Passive driver assembled by
AMPLIFIER.
Power supply module assembled by
Amp/preamp modules assembled by
Assembled and bench tested by
FINAL ASSEMBLY.
Assembled and bench tested by
Visual inspection performed by
Sound room test performed by Packaged by
Speakers inspected by
CABINET.
Constructed by
Inspected by
Inspected for
QUALITY CONTROL LOG.
Serial Number
Date: / / .
SuperNova MKV 10"
SuperNova MKV 12"
SuperNova MKV 15"
SuperNova 12”
SPL Curve
SuperNova 10”
SPL Curve
Supernova 15”
SPL Curve