UB282 Microphone Preamplifier.
Section A is a transformer balanced, low noise microphone preamplfier with front panel gain trim.
Section B is a transformer balanced line output amplifier with front panel level trim.
CONNECTIONS AND CONTROLS
| UB282 | MIC | |
Mic Gain | Trim | Section A | |
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| PUSH | |
Output |
| IN | |
Trim | Section B | ||
Level | |||
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| OUT | |
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| LK3 |
Output phase
LK2 | LK3 |
LK2
Mic Out
Mic Out
Line In
Line In
+15v
0V
Phantom power
LK1 |
| LK1 |
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Pin 2 Hot (+) Pin 3 Hot (+)
On | Off |
BLOCK DIAGRAM
Section A - Mic preamplifier
SPECIFICATIONS
MICROPHONE SECTION
Mic Out
Phantom
IN
Mic Gain
Section B - Line output | Line In |
Output Level
Phase
OUT
Please note that each section is independant.
Frequency Response
EIN
THD
Gain range Input impedance
CMRR
Max input level
Output impedance Phantom power
OUTPUT SECTION
Frequency response Output impedance Input impedance Max output level Gain range Output noise
<0.1% min gain
<0.05% max gain 22dB to 62dB
1k balanced for 150/200R mics 100dB @ 100Hz
80dB @ 1kHz 60dB @ 10kHz
+0,
<20R
47k
+20dBu
Off to +12dB
<
POWER SUPPLY |
A U D I O
In keeping with our policy of continuous improvement LA Audio reserves the right to alter specifications without prior notice. Manufactured in the UK by LA Audio,
Tel: +44 (0)207 923 7447, FAX: +44 (0)207 241 3644. Web: www.laaudio.co.uk. email: sales@laaudio.co.uk
An SCV International Group Company. | Rev 1.0 11/00. |
