SABINE FBX1200 Operations Instructions download pdf (Page 9)

FBX2020P-OpGuide-031104.pmd - hto

FILTERS

12 independent digital notch filters per channel, controlled auto-

matically from 40 Hz to 20 KHz.

Filter width: user-controllable - either 1/10 or 1/5 octave, constant "Q"

Resolution: 1/50 octave from 100 Hz to 20 KHz

Time required to find and eliminate feedback: 0.4 seconds, typical

@ 1KHz

Total number of combined filters active per channel: user select-

able, from 1 to 12

Number of dynamic vs. fixed filters per channel: user selectable

LAST CONFIGURATION STORED IN MEMORY

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 >10K Ohms, PIN 2 high

Output Impedance: Balanced or unbalanced 10 Ohms nominal, PIN

2 high

Bypass: True power off bypass

Headroom: +23dB peak @ 4dBV nominal input, balanced

I/O Connectors: XLR-3 and 1/4" TRS

FBX2020-Plus ENGINEERING SPECIFICATIONS

Filter 1 Filter 12Filter 11Filter 2

ADC DAC

DSP

Feedback Detection

Center Frequency - Depth Control

Bypass Switch

1/5 or 1/10 Octave Filters

Automatic

Clip Level

Adjustment

Automatic

Clip Level

Adjustment

TRS

INPUT

OUTPUT

FBX-2020Plus SIMPLIFIED INTERNAL BLOCK DIAGRAM

Analog/Digital

Converter

Digital/Analog

Converter

XLR

PERFORMANCE***

Spectral Variation:

+ .25 dB, 20Hz to 20 KHz

SNR: >100 dB, typical, "A" weighted

THD: <0.02% @ 22 dBV sine wave at 1 KHz

Dynamic Range: >105 dB with ClipGuard™ automatic clip level

control active

POWER INPUT

Factory configured to either 115 VAC or 230 VAC. 50/60 Hz, 12 Watt

input.

FUSE REPLACEMENT

To reduce the risk of fire, replace only with 5x20 mm, .315 A, 250 V,

fast-acting fuse.

MEMORY BATTERY LIFE

7 years, typical

DIMENSIONS

1-U rack mount; 19 x 1.75 x 8.0 ins. nominal (rack mountable); 48.3 x

4.5 x 20.3 cm nominal (rack mountable)

WEIGHT

8.0 lbs. (3.6 kg) nominal

OPERATING TEMPERATURE

Safe operating temperature: 0 - 50 degrees centigrade ambient

temperature (32 - 120F)

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

*Below approximately 200 Hz the feedback filters become slightly wider to increase the feedback and rumble capture speed at these low frequencies.

**(Note: Inputs may be balanced or unbalanced. For maximum output capability, outputs must be balanced (XLR or TRS). If either side of an output is grounded, the peak output and dynamic

range will be reduced by 6 dB.

*** Tests performed using an Audio Precision System One model 322 or equal.

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SABINE FBX1200 Operations Instructions Page 9

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