Table of Contents
Advertisement
1.
SUB 212 Introduction
World-renowned for their accurate, full-range sound, Blue Sky studio
monitoring systems are used in critical listening applications by audio
professionals in a wide variety of industry sectors. Emmy Award-winning
sound editor Eric Lalicata, Grammy Award-winning engineer/remixer Roger
Sanchez and legendary Talking Heads keyboard/guitarist Jerry Harrison all
rely on Blue Sky speakers to check the accuracy of their work before it
goes public. And it's the same story at film sound facility Skywalker Sound
and broadcaster ESPN, where Blue Sky speakers once again provide an
important link in the production chain.
Blue Sky's fresh approach to studio monitor design delivers the highest
possible ratio of performance to cost, in turn providing the highest value
to our customers.
Making the subwoofer (SUB) an integral part of the monitor system design
enables a studio monitor, such as the SAT 8, to be positioned for the best
imaging, and the SUB to be positioned for the best bass response. Relieving
the studio monitor of the requirement to reproduce the low frequencies means
that the uncompromising sealed-box design, can combine with sophisticated
bass management electronics, to provide a seamless transition between the
SAT and SUB.
It all adds up to accurate, full range sound.
To that end we are proud to introduce the SUB 212. Blue Sky's SUB 212
is a sealed box, dual 12", push-pull, 400-Watt subwoofer. It features an
anechoic frequency response of 25Hz to 200Hz, +/-3dB. In addition, the
SUB 212 also has built-in 2.1 bass management electronics with both a 4th
order 80Hz Linkwitz-Riley low-pass filter and a 2nd order 80Hz high-pass
filter that is perfectly matched to the response of the SAT 8 (the SUB 212 is
also compatible with the SAT 12, SAT 6.5 and SAT 5).
More about the Push-Pull Design:
In the SUB 212 "push-pull" subwoofer, one 12" woofer is mounted
conventionally on the front baffle of the cabinet and the second is mounted
inverted, out of the bottom of the cabinet. The front of the woofer, which
is mounted on the bottom of the cabinet, has its cone facing the inside of
the cabinet, with the back side of the cone, frame and motor / magnet
structure facing the outside. Although both woofers operate acoustically
in-phase, one with the front side of its cone and the other with the back
side, they operate mechanically out-of-phase, relative to each others magnet
structures. Therefore, when a signal is being reproduced by the subwoofer,
each cone is always in the exact opposite position from the other, relative
to its own magnet. Because the even-order harmonic distortion components
of each woofer are both virtually equal and exactly opposite in time / phase
to each other, these even-order harmonic distortion components for each
woofer are cancelled acoustically. These even-order harmonic distortion
components are typically caused by non-linearity in the cone's motion, such
as when the voice coil is moving deep into the gap and towards the magnet,
as compared with when it is moving partially out of the gap and away from
the magnet.
As an additional benefit, in comparison to a SUB 12, the SUB 212 also has
6dB more output, thanks the doubling in both power and cone area.
When combined, the SAT 8 and SUB 212 provide a stunningly accurate and
engaging, full-range monitoring system. We know you will agree...
Thank you for choosing Blue Sky!
Page 4 • User Manual • Introduction & Important Notes
SUB 212
USER MANUAL • 1 - 3 • INTRODUCTION & IMPORTANT NOTES
WARNING:To reduce the risk of fire or electrical shock,
do not expose this equipment to rain or moisture.
Do not remove cover. No user serviceable parts inside.
Refer servicing to qualified personnel.
AVIS: RISQUE DE CHOC ELECTRIQUE
designed in the USA
2.
Important notes about the
SUB 212 and this manual.
Voltage Selector Switch:
Prior to powering this unit, please confirm that the voltage selector switch,
located on the back of the SUB 212, has been set to the correct voltage
setting. If you are unsure of the type of power that is supplied to your home,
consult your product dealer or local power company.
CAUTION
Voltage
!
RISK OF ELECTRIC SHOCK
Selector Switch
DO NOT OPEN
NE PAS OUVRIR
This Owner's Manual:
This manual addresses SUB 212 stereo / 2.1 applications. For information
about 5.1 (or beyond) setup, please consult the manual that comes with the
BMC MK II or visit the Blue Sky web site (address listed below).
Please read this owner's manual carefully and contact Blue Sky International
if you have any comments or questions. Contact information can be found
on page 13 or you can visit: www.abluesky.com
3. The SUB 212, what is
included?
Each SUB 212 includes the items listed below. Please carefully unpack each
item and inspect the components for damage. If any part of the system has
been damaged, please contact the dealer that supplied the product or Blue
Sky directly.
SUB 212 Inventory:
1
SUB 212
1
Power Cable
1
Owner's Manual
1
Warranty Card
4
Subwoofer Isolation Feet
ON
VOLTAGE
Replace Only With Same
SELECTOR
WARNING:
T 4AL 250V FOR 230V INPUT
SET VOLTAGE
T 8AL 250V FOR 115V INPUT
SWITCH BEFORE
TURNING ON
Rating and Type
115
ma
Advertisement
Table of Contents
