LA Audio Electronic Microphone Preamplifier UB282 - Manual

Microphone Preamplifier.
UB282
PUSH
UB282 MIC
Section A
Section B
Trim
Trim
IN
OUT
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, 6-24 Southgate Road, London, N1 3JJ.
Tel: +44 (0)207 923 7447, FAX: +44 (0)207 241 3644. Web: www.laaudio.co.uk. email: [email protected]
An SCV International Group Company. Rev 1.0 11/00.
Mic Gain
Output
Level
Mic Out
Mic Out
Line In
Line In
Section A - Mic preamplifier
Section B - Line output
Please note that each section is independant.
Phase
OUT
IN
Mic Gain
Output Level
Phantom
Mic Out
Line In
SPECIFICATIONS
MICROPHONE SECTION
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
POWER SUPPLY
+0/-1dB, 20Hz to 20kHz
-126dBu, 200R load
< 0.1% min gain
< 0.05% max gain
22dB to 62dB
1k balanced for 150/200R mics
100dB @ 100Hz
80dB @ 1kHz
60dB @ 10kHz
-2dBu, min gain
-42dBu, max gain
1k unbalanced
+15V
+0, -0.5dB, 20Hz to 20kHz
< 20R
47k
+20dBu
Off to +12dB
< -88dBu
+/-15V @ 20mA
A U D I O
BLOCK DIAGRAM
CONNECTIONS AND CONTROLS
Phantom power Output phase
Pin 2 Hot (+) Pin 3 Hot (+) On Off
LK1 LK1
LK2 LK2
LK3 LK3
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.
+15v
0V
-15v