LA Audio SPX20 Quick start guide

PRODUCT OVERVIEW
The SPX20 is a six input stereo source selector
designed to extend the number of monitor returns
available on a mixing console. Equally it can be
used to select up to 6 music sources and distribute
these to 2 zones with separate level control and
on-off switching for each zone.
Channel one has an input level control to facilitate
on-the-fly adjustment, while the other inputs
feature screwdriver level trimmers providing
adjustment for +4dBu and -10dBV signal levels
and balancing volumes between sources.
Additionally channel one features front panel jack
sockets in parallel to the rear panel inputs to
facilitate direct connection of an instrument.
Inputs are selected by momentary action buttons
that also allow more than one input to be selected
and mixed to the output. Switching from one
source to another is CMOS controlled and silent.
Two separate outputs with level controls and on-off
switching provide a means of selecting and
balancing levels between different types of
monitors. A front panel headphone output is also
provided with separate level control.
A master output DIM button provides 20dB of
attenuation and a Mono sum switch is provided for
connection of mono sources.
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: [phone], FAX: [phone]. Web: www.laaudio.co.uk. email: [email protected].uk
An SCV International Group Company
SPECIFICATIONS
ELECTRICAL
Frequency response:
Distortion:
Noise:
Input impedance:
Output impedance:
Input trim range:
Output level 1 & 2:
DIM:
Power Consumption:
PHYSICAL
Connector Types:
Input 1:
Input 2 & 3:
Input 4:
Input 5:
Input 6:
Output 1 & 2:
Record Out:
Power:
Dimensions:
Weight:
±1dB, 20Hz to 20kHz
<0.01%
< -90dB (at unity gain)
20k
<100R
±10dB
Off to +10dB
-20dB
7VA, 115/230VAC, 50/60Hz
Electronically balanced,
XLR-F wired pin 2 = hot
Electronically balanced,
TRS jack wired Tip = hot
Unbalanced, Phono
Unbalanced, Phono
Unbalanced, Phono
Ground sensing, 1/4" TRS
jack, wired tip = hot
Phono connector
Detachable Lead, 3 pin IEC
483mm (19") W
150mm (6") D
44mm (1.75")
Unit 2.2kg
Shipping 2.85kg
Stereo 6 Channel, Dual output Source Preamp
British
Originals

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: [phone], FAX: [phone]. Web: www.laaudio.co.uk. email: [email protected].uk
An SCV International Group Company
Stereo 6 Channel, Dual output Source Preamp
British
Originals
150.0
44.0
483.0
SPX2
230V 50Hz
FUSE T50mA
R
OUTPUTS RECORD OUT
R
6
12 54 3 2 1
R
L
R
L
R
LLRLRLRL
INPUTS
L
XLRs
1 = GND
2 = Hot
3 = Cold
Jacks
T = Hot
R = Cold
S = GND
~SERIAL No:
Manufactured in the UK by LA Audio
a division of SCV Electronics Ltd
No user serviceable parts inside
Disconnect from mains before removing cover
This equipment must be earthed
A U DI O
INPUTS
POWER
MONO ON ON
LEFT RIGHT TRIM
DIM
OUTPUTS HEADPHONES
BALANCED
-10 +10
0
dB
BALANCE
LR
1 2 3 4 5 6
TRIMTRIMTRIMTRIMTRIMTRIM
C
LEVEL 1
010
5
2 8
3
4
1
6
LEVEL 1
010
5
3
4
1
6
7
9
8
7
9
VOLUME
010
5
2 8
3
4
1
6
7
9
TRIM
Left
Right Select #1
LR
MIX
Mix amp
Tape Send L
Mix amp
Tape Send R
BALANCE
MONO DIM
LR
Left
On-Off #1
LEVEL 1
Right
Left
On-Off #2
LEVEL 2
Right
HEADPHONES
VOLUME
TRIM
Right
Select #2
Left
TRIM
Right
Select #4
Left
INPUT 1
INPUTS 2 & 3
INPUTS 4, 5 & 6
Select #1
Select #2
Select #3
Select #4
Select #5
Select #6
1
2
3
4
5
6
Input
Select
Power
on-off
Delay
On-Off #1 On-Off #2
OUTPUT 1 ON-OFF OUTPUT 2 ON-OFF
~
OUTPUT 2
OUTPUT 1
BLOCK DIAGRAM
DIMENSIONS