LA Audio Electronic specifications UB282 Microphone Preamplifier, Connections And Controls

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
		PUSH
Output		IN
	Trim	Section B
Level
		OUT
		LK3

Output phase

LK2 LK3

LK2

Mic Out

Mic Out

Line In

Line In

	+15v
	0V
	-15v
Phantom power
LK1	LK1

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/-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

POWER SUPPLY +/-15V @ 20mA

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, 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: sales@laaudio.co.uk

An SCV International Group Company. Rev 1.0 11/00.