Behringer B2030A ユーザーズマニュアル

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TRUTH B2031A/B2030A User Manual
4.  Installation
The BEHRINGER TRUTH features one balanced XLR and one balanced 1/4" TRS input. 
If connecting to other equipment is possible using balanced inputs, always make 
such connections because they offer maximal compensation of disturbing signals.
Fig. 4.1: 
strain relief clamp
sleeve
tip
sleeve
(ground/shield)
Unbalanced ¼" TS connector
tip
(signal)
 1/4" TS connector
Fig. 4.2: 
strain relief clamp
sleeve
ring
tip
sleeve
ground/shield
For connection of balanced and unbalanced plugs,
ring and sleeve have to be bridged at the stereo plug.
Balanced ¼" TRS connector
ring
cold (-ve)
tip
hot (+ve)
 1/4" TRS connector
Fig. 4.3: 
output
For unbalanced use, pin 1 and pin 3 
have to be bridged
1 = ground/shield
2 = hot (+ve)
3 = cold (-ve)
input
1
2
3
1
2
3
Balanced use with XLR connectors
XLR connectors
5.  Specifications
Audio Inputs
B2030A/B2031A
XLR connector 
servo-balanced input
1/4" TRS  
servo-balanced input
Input impedance 
10 kΩ
Max. input level 
+22 dBu
Components
B2030A
Tweeter 
¾" ferrofluid-cooled dome
Woofer 
6 ¾" polypropylene diaphragm
B2031A
Tweeter 
1" ferrofluid-cooled dome
Woofer 
8 ¾" polypropylene diaphragm
Amplifier
B2030A
RMS @ 0.1 % THD 
70 W
Peak power 
125 W
B2031A
RMS @ 0.1 % THD 
140 W
Peak power 
265 W
Crossover
B2030A/B2031A
Type 
active, 4th order Linkwitz-Riley
Crossover frequency 
2 kHz
System Specification
B2030A
Frequency response 
50 Hz to 21 kHz
Sound pressure level 
max. 113 dB SPL @ 1 m (pair)
B2031A
Frequency response 
50 Hz to 21 kHz
Sound pressure level 
max. 116 dB SPL @ 1 m (pair)