Sabine fbx 2400 инструкция на русском

Follow these procedures to get maximum gain before feedback

Place equipment & make connections.

1

a. Patch your FBX1200 or FBX2400 into system and make all connec-

tions (refer to pages 2 and 3 for connection options).

b. Place speakers and microphones in performance positions.

c. Set Input and Output levels on FBX back panel (see Section 5.1.1.

for details). Start with all buttons pushed in.

d. If you are using a graphic EQ, adjust only for the desired tonal

qualities, but DO NOT NOTCH FOR FEEDBACK.

e. Adjust the level for each mixer channel, and set the sound system’s

master volume to minimum.

Push SETUP button until all LEDs stop flashing and the

2

SETUP light flashes on its own.

Dynamic filters. Do not use Setup mode during your performance.

Slowly raise the gain on the mixer or amp until the FBX

3

eliminates the first few feedback tones.

DO NOT TALK INTO THE MICS. The FBX will quickly begin to find and

remove feedback. The first Fixed filter set will be heard as a quiet feedback

chirp and shown as an amber LED. As you slowly raise the gain, more

feedback chirps will be heard, and more amber LEDs will light.

a. If you are using stationary microphones:

Continue raising the gain until all filter LEDs cycle back and forth in

sequence. This is your indication that the FBX is exiting setup mode.

IMPORTANT: Reduce gain slightly. You are now in READY (perfor-

mance) mode, with the Fixed filters locked and the blue Ready

light on. Begin the show!

b. If you are using wireless microphones:

You can get more gain in a variety of locations. To do this, lower the system

gain after the first few filters are set, then move the microphone to another

area where it will be used and raise the gain slowly as before. Repeat this

process while you continue raising the gain until all filter LEDs cycle

back and forth in sequence. This is your indication that the FBX is exiting

setup mode.

IMPORTANT: Reduce gain slightly. You are now in READY (perfor-

mance) mode, with the Fixed filters locked and the blue Ready

light on. Begin the show!

c.

You may quit Setup mode at any time prior to its automatic exit by simply

pressing the READY button (blue READY LED will flash). Press it again at

any time to lock the Fixed filters (blue READY LED stays on). Whether locked

or unlocked, pressing the READY button before Setup mode automatically

finishes will enable ready-to-operate status, but with fewer fixed FBX filters in

place. Dynamic FBX filters are still available to eliminate new feedback, re-

gardless of how or when SETUP mode is exited. Begin the show!

If you do not have time to use Setup Mode:

4

Push the READY button — the blue LED flashes indicating the fixed filters

are unlocked. Begin your show, and once several fixed filters are set we

recommend you lock them by pushing ready again (blue LED stays lit). You

won’t get all the potential benefit of increased gain before feedback, but you

will get automatic feedback control during your performance.

Setup mode clears all Fixed &

Power Tips

a. Set up one FBX channel at a time.

b. DO NOT TALK INTO YOUR SYS-

TEM while in Setup mode.

c. See Section 5.2. FBX Filter Con-

trol for information on:

• Changing the number of Fixed

vs. Dynamic filters

• Selecting and mixing 1/10- &

1/5-octave filters

• Enabling and setting the Dy-

namic Filter Timer

Front panel filter LEDs

lighting as gain is raised

and Fixed filters are set.

FILTER COLOR KEY

FBX Filters

LEDs

Fixed, Locked

RED

Steady BLUE

Fixed, Unlocked

AMBER

Flashing BLUE

Dynamic

GREEN

Either

Fixed & Dynamic Filters

See Section 4.1.3. for details on

the differences between Fixed and

Dynamic FBX filters, and Section

5.2.2. for instructions on changing

the balance of Fixed versus Dy-

namic filters.

LIT-FBX1200/2400-OP-EN-050817.pmd — rr

Ready LED

5

FBX2400 / 1200 Series
The New
FBX Feedback
Exterminators :
®
with SMARTFilter™
Technology
■
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■
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■
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■
■
■
■
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SMARTFilter Technology
Super-fast Automatic Feedback
Control
Quick and Quiet Setup
Accurately distinguishes music
from feedback
Places filters with 1 Hz resolution
Transparent – leaves your sound
clear and untouched
Provides more gain before
feedback (6 to 9dB typical)
24-bit Digital Resolution
Three-color LED filter display
12 Filters per channel
Flexible Filter Controls
Timed or Manual Dynamic
Filter Reset
XLR & ¼” TRS inputs/outputs
Unbelievable new price!
Of all the problems you can have with your audio
system, nothing is more obvious or annoying to the
audience than feedback. You do not need “Golden
Ears” to know something is wrong. Thanks to the
Sabine FBX Feedback Exterminator, this problem is
solved. The FBX makes a significant improvement in
your sound – it's a difference you can really hear.
Quite simply the FBX gives you the single most
important function of sound reinforcement: gain
before feedback. And that gain comes with
increased clarity and all the mobility you need for
®
your wireless microphones...
Since Sabine first invented digital feedback control in 1991, FBX
Feedback Exterminators have set the standard for transparent and
reliable automatic feedback control. Now Sabine is proud to
announce the next generation of automatic feedback controllers:
the FBX1200 and FBX2400, now with SMARTFilter™ technology.
The Power of FBX
The power of the FBX with SMARTFilters lies in its ability to
control feedback during the program, not just at setup time. If
feedback occurs during that crucial moment of the show, in the
middle of the big solo, or just when the worship leader begins
the sermon, the FBX places a filter that only kills the feedback,
not the sound and power you work so hard to achieve.
Think of the FBX as a very advanced set of automatic parametric
filters. If you had the time, the filters, and the test equipment, you
could find the feedback frequencies, dial in the precise filter
location, and make a very narrow filter, just deep enough to
remove the offending tone. The FBX does it all for you automatically, and it does it faster than any other method.
How do we do it? First let’s consider just how a superior feedback
control filter should behave. Filters can be described by their
Speed, Accuracy, Resolution, and Sonic Integrity.
SPEED: The industry’s best digital signal processors that run the
SMARTFilter algorithm give the new FBX1200 and 2400 a distinct
speed advantage over all other automatic feedback controllers.
And in Setup Mode the speed is increased, so you can complete
your entire setup of the FBX in less than 30 seconds. During the
show the 24-bit FBX is constantly on the watch for feedback, never
allowing it to ruin your show. Filters are placed almost immediately
(in 0.4 seconds at 1 KHz).
Speed of feedback
elimination, shown as
amplitude over time:
The top chart shows the
speed of a competitor.
Note slow reaction time
and longer time to eliminate the feedback. The
bottom section shows
the much faster FBX.
ACCURACY: Is it music or is it feedback? This is the most difficult
question your feedback controller must answer. A wrong decision
means you waste filters (less gain for you) and punch unnecessary
holes in your sound. The FBX has always excelled in its ability to
make the right decision, and the new SMARTFilter technology
makes it even better. Less sophisticated feedback controllers
place filters on any loud tone, even if it is music, but the FBX uses
a patented analysis of the harmonic content of your program
material. Because feedback is low in harmonics, and music and
speech are rich in harmonics, the FBX is able to make the correct
and accurate answer to the music or feedback question.
RESOLUTION: This is a big one. Now that we know feedback is
happening, we need to target it precisely. Many feedback
controllers place their filters in the general vicinity of the feedback
and then widen the filters until the feedback goes away. The FBX
uses a more sophisticated solution. It centers the filter exactly on
the frequency that is feeding back. This unique one-Hertz resolution enables the FBX to control feedback with transparent filters
that are ten times narrower than graphic equalizer filters, which
can only muster 31 spots to place their very wide filters. Feedback
frequencies are single tones, and that means there can be almost
20,000 places for them to occur in the audio spectrum. You can
see that using a feedback control device with less resolution is
like shooting a fly with a shotgun. You may eventually get that fly,
but it will take a lot of shooting and cause a lot of damage!
In contrast, the FBX1200 and 2400 place these accurately chosen
filters with one Hz resolution. This means a direct hit on a single
feedback tone – every time.
Filter quality: True Constant Q
filters maintain width at any
depth when measured at the
-3 dB power point. Sabine
uses this most rigorous
method for computing
filter width.
S O N I C I N T E G R I T Y : Sabine’s innovative approach to digital
filtering is unique in the industry. Our filters just sound better, with
far less phase distortion and a smoother response. Sabine filters
maintain their integrity at all depths, providing true Constant Q
performance.
Some competitors tout the benefits of more filters, but why add
more filters than you need? The FBX processor could easily produce
50 filters if we wanted them, but they would only degrade your sound.
Our experience proves that twelve feedback filters per channel is the
right number. More filters just cut into the quality of your sound.
The New FBX Feedback Exterminators®:
with SMARTFilter™ Technology
Three-color LED Display: Amber for unlocked fixed, Red for locked fixed, & Green for dynamic filters.
FBX FILTERS COME IN TWO FLAVORS: Fixed and Dynamic. Both
filters are placed the same way: Feedback is detected and the
filter is placed just deep enough to eliminate it. The difference
comes after the filter is placed. Fixed filters remain on the initially
detected feedback tone – they do not move. These filters provide
Some competitors tout ever narrower filters. The FBX processor
can easily produce filters that are 1/100 of an octave wide, but our
experience teaches us that filters narrower than 1/10 of an octave
allow the feedback to return with very little provocation. Sabine
filters are transparent to the ear and offer the ideal balance of
width and protection against feedback under shifting conditions.
Making them narrower ultimately degrades their performance,
and we won’t do it.
Faster Setup…
The FBX1200 and 2400 give you the easiest, fastest, and quietest
setup procedure. In less than 30 seconds you will be ready to
begin your performance, and the whole process is so quiet you
can almost do it without anyone knowing it is happening!
the initial maximum gain before feedback and are set automatically during setup. Dynamic filters can release and move to
new feedback frequencies and are for adaptive feedback
control during the performance. Factory default is 9 fixed and 3
dynamic, but this is easily changed using front panel controls.
…and a Bright Display
After the super-fast setup is complete the bright blue LED on the
Ready button clearly tells you the show can begin, and you’ve got
all the extra gain you need. You have complete control of the mix
between filter types (see the Fixed and Dynamic Filter box above),
and the bright, three-color LED display shows you your filter
status at all times – you can see it from across the room!
The Bottom Line
Even with all the improvements of SMARTFilters, and the improved
specs and audio performance, perhaps the best news is that we
lowered the price! And the FBX Feedback Exterminator is made in
the USA. Call us or head to your nearest Sabine dealer and try the
new FBX for yourself. You will hear your sound and nothing else!
Applications Guide
WHERE TO PATCH THE FBX
■ For feedback control across the entire mix, patch the FBX
between the mixer and the power amp.
■ For feedback control on one input channel or sub-group,
patch the FBX at the insert point. Choose this setup for
targeted feedback control on selected microphones –
highly recommended.
Total Control: FBX2400 controlling feedback for the whole mix in both mains
and monitors. Patched between mixer and power amps.
WHERE TO USE THE FBX
The FBX provides more gain before feedback in mains and
monitors for voice and instruments in:
Targeted Control: FBX1200 controlling feedback in one input channel,
or one group of channels. Patched at insert point.
■
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Theaters & Concert Halls
Worship Centers
Schools & Auditoriums
Conference Rooms & Board Rooms
Sports Arenas & Broadcast Stations
Teleconferencing & Paging Systems
Worldwide Users of FBX
AALBORG KONGRESS HALL (Denmark)
UNITED NATIONS HEADQUARTERS
THE VATICAN
KOREAN BROADCAST SYSTEM
TORWAR ARENA (Warsaw, Poland)
WESTIN BONAVENTURE HOTEL
WALT DISNEY COMPANY
WILLIE NELSON
CONGRESS INNSBRUCK Austrian government
CENTRAL LUTHERAN CHURCH
ELECTROTEC
GUND ARENA Cleveland Cavaliers
CENTURY CLUB, L.A.
BANGKOK UNIVERSITY (Thailand)
PAUL McCARTNEY
WAYLON JENNINGS
MEADOWLANDS EXPOSITION CENTER
SMITHSONIAN INSTITUTION
LONE STAR AMPHITHEATER
AMERICAN MUSEUM OF NATURAL HISTORY
R.A.I. CONGRESS CENTRE (The Netherlands)
WAVELENGTH HIRE COMPANY (Australia)
BRYZA HOTEL (Poland)
NASA
SWACKHAMMER'S, Spokane, WA
JACOB JAVITZ CONVENTION CENTER
NEW ORLEANS JAZZ FESTIVAL
THE LATE SHOW WITH DAVID LETTERMAN
BROOKLYN BOTANICAL GARDENS
DAYTONA BEACH ASSEMBLY HALL CHURCH
HOUSE, WESTMINSTER (England)
MICHIGAN STATE UNIVERSITY
NATIONAL BOWLING STADIUM
HEWLETT PACKARD
AMOCO CORPORATION
AUSTRIAN FEDERAL BROADCAST
CITY TV (Toronto)
LOS ANGELES SHAKESPEARE FESTIVAL
UNIVERSAL STUDIOS
UNIVERSITY OF FLORIDA
IOWA STATE EDUCATION SYSTEM
MTV LATINA
U.S. DISTRICT COURT
ROSE BOWL
GRAND MOSQUE (Oman)
HEWLETT PACKARD
NEW ENGLAND AQUARIUM
CANADIAN BROADCAST COMPANY
CBS STUDIOS
ORLANDO ARENA
AIR FORCE BAND
TAVERN ON THE GREEN
THE ROTUNDA, UNIVERSITY OF VIRGINIA
CAIRO OPERA HOUSE
IOWA STATE EDUCATION SYSTEM
HYATT REGENCY SAN FRANCISCO
BOEING TEST LABS
LAMBEAU STADIUM, GREEN BAY
IMPACT AUDIO
DR. JOHN
MUSEUM OF FLIGHT, SEATTLE
MINGEI INTERNATIONAL FOLK ART MUSEUM
NBC STUDIOS LOS ANGELES
UNITED ARTISTS THEATERS
ST. MARY'S CATHEDRAL
NAVY SEA LIFT VESSELS
AUSTRALIAN FEDERAL PARLIAMENT
AMERICAN STOCK EXCHANGE
LOCKHEED MARTIN
FBX1200 and 2400 Engineering Specifications
INPUT/OUTPUT
Input/Output Maximum Signal Levels: Balanced +27dBV peak, unbalanced
+21 dBV peak
Output Drive: Unit will perform as specified driving a load >600 Ohms
Input Impedance: Balanced or unbalanced >40K Ohms, PIN 2 high
Output Impedance: Balanced or unbalanced 150 Ohms nominal, PIN 2 high
Bypass: True power off bypass
Headroom: +23 dB peak @ 4 dBV nominal input, balanced
I/O Connectors: XLR-3 and 1/4” TRS
PERFORMANCE**
Frequency response: 20 Hz - 20 KHz +/- 0.3 dB
Gain matching: +/- 0.2 dB
Spectral Variation: + .25 dB, 20 Hz to 20 KHz
SNR - Dynamic Range: >100 dB
One-year limited warranty
Patented
†
Other Patents Pending
Made in USA
THD: .005% at 1 KHz
< 0.01% 20 Hz - 10 KHz
< 0.025% 10 KHz - 20 KHz
Dynamic Range: >105 dB
POWER INPUT
115 VAC: 100 - 130 VAC 50/60 Hz
230 VAC: 200 - 240 VAC 50/60 Hz
FUSE
115 VAC, 0.1 A, 10 W, 0.160 A SB fuse
230 VAC, 0.06A, 10 W, 0.160 A SB fuse
DIMENSIONS
1-U rack mount; 19 x 1.75 x 6.25 in. nominal (rack mountable);
48.3 x 4.5 x 15.9 cm nominal
WEIGHT
8.0 lbs. (3.6 kg) nominal
OPERATING TEMPERATURE
Safe operating temperature: -15 to +50 degrees centigrade ambient
temperature (5 to 122F)
*Below approximately 200 Hz the feedback filters become slightly wider to
increase the feedback and rumble capture speed at these low frequencies.
**Tests performed using an Audio Precision System One model 322 or equal.
®
Complete Operating Guide
available at our website
www.Sabine.com
13301 Highway 441
Alachua, Florida 32615-8544 USA
Tel: (386) 418-2000
Fax: (386) 418-2001
†FBX and FBX Feedback Exterminator are registered trademarks of Sabine, Inc., and are the brand names of its line of automatic feedback controllers. Covered by U.S.
Patent No. 5,245,665, Australian Patent No. 653,736, German Patent No. 69118486.0, U.K. Patent No. 0486679, and Canadian Patent No. 2,066,624-2. Other patents pending.
© 2004 Sabine, Inc. LIT-FBX1224-EN 040514
FILTERS
12 independent digital notch filters per channel, controlled automatically from
40 Hz to 20 KHz.
Filter width: user-controllable – either 1/10 or 1/5 octave*, constant “Q”
Resolution: 1 Hz
Time required to find and eliminate feedback: 0.4 seconds, typical @ 1 KHz
Number of Dynamic vs. Fixed filters per channel: user selectable. Last
configuration stored in memory.
Dynamic Filter Timer: Resets dynamic filters in 1, 5, 30, or 60 minutes

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