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Specifications
AF-70: ANTI-FEEDBACK
AD Conversion
22 bit AF Method
DA Conversion
18 bit 16 Times Oversampling ∆ ∑ Conversion
Sampling Frequency
48 kHz
Memory
Non-volatile
Frequency Response
10 Hz to 22 kHz (+0/-3 dB)
Nominal Input Level
-40/-20/0 dBm (Balanced)
Input Impedance
20 kΩ (-20/0 dBm), 3 kΩ (-40dBm)
Maximum Input Level
+24 dBm (Limiter: On, 0 dBm, Balanced)
+20 dBm (Limiter: Off, 0 dBm, Balanced)
Head Room
20 dB (-40/-20 dBm), 18 dB (0 dBm)
Nominal Output Level
-40/-20/0 dBm (Balanced)
Output Impedance
600 Ω: 2 pin(HOT) - 3 pin(COLD)
300 Ω: 2 pin(HOT) - 1 pin(GND) / 3pin(COLD) - 1pin(GND)
Maximum Output Level
+18 dBm (0 dBm, Balanced into 600 Ω)
Total Harmonic Distortion
0.05 % or less
Dynamic Range
97 dB or greater (-20 dBm)
Anti-Feedback Characteristic
Center Frequency: 20 Hz to 20 kHz
Q:
Max
Cut Level:
Max
Filter Width:
Min
14
100
-40 dB
1/20 oct
Functions
Auto Adjust Function (Filter: 12)
Filter Wide Function
Dynamic Adjust Function (Filter: 2)
Diffuse Function
Limiter Function
Enhancer Function
Low-Cut Filter
High-Cut Filter
Phantom Power (+48 V)
Output Phase Function
Output Ground Lift Function
Connectors
INPUT:
XLR-3-31 Type / 1/4 inch TRS Phone Type for
common use
OUTPUT: XLR-3-32 Type, 1/4 inch TRS Phone Type
* XLR Type:
1: GND, 2: HOT, 3: COLD
1/4 inch TRS Phone Type:
Tip: HOT, Ring: COLD, Sleeve: GND
Power Supply
AC 14 V (BOSS BRC-Series)
Current Draw
500 mA
Dimensions
138 (W) x 197 (D) x 43 (H) mm
5-7/16 (W) x 7-13/16 (D) x 1-3/4 (H) inches
Weight
600 g (excluding the AC Adaptor) / 1 lb 6 oz
Accessories
Owner's Manual, AC Adaptor BOSS BRC-Series,
Rubber foot (x4)
Option
Rack Mount Adaptor RAF-70
* 0 dBm = 0.775 Vrms
* In the interest of product improvement, the specifica-
tions and/or appearance of this unit are subject to
change without prior notice.
About the AF (Adaptive Focus) Method
This newly developed AD conversion process virtually
eliminates all quantization noise, and dramatically improves
overall dynamic range. It accomplishes this by using two
types of AD converters (with different input levels) to
convert audio signals into data in combination with a
unique DSP method for creating a composite of the separately
obtained data streams.
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