Specifications

1
SPM412e
TABLE OF CONTENTS
Front Panel Features
Rear Panel Features
Modifications
Remote Control
Applications
Block Diagram
Specifications
Warranty
pg. 2
pg. 3
pg. 4 & 5
pg. 6 & 7
pgs. 8 & 9
pg. 10
pg. 11
INTRODUCTION
The SPM412e Stereo Preamp/Mixer provides four stereo line inputs, one
mic/line input, and two independent outputs. With input source selection,
automatic page-over muting, and remote control functions, the SPM412e is
ideally suited for applications such as restaurants, bars, meeting rooms,
aerobics studios, and school gymnasiums. The SPM412e is extremely
versatile, yet cost-effective, and is easy to install and operate.
SPM412e features include:
♦ four stereo line inputs with trim controls & RCA connectors
♦ balanced mic/line input on plug-in barrier strip connector
♦ trim, pad, peak indicator, & level control on the mic/line input
♦ +24 volt phantom power switchable on the mic/line input
♦ balanced stereo main output on plug-in barrier strip connector
♦ balanced mono zone output on plug-in barrier strip connector
♦ front panel push-buttons select stereo inputs & adjust main level
♦ simultaneous selection of multiple stereo inputs from front panel
♦ front panel display shows stereo input selections & main level
♦ treble, bass, and balance controls for the stereo main output
♦ rear panel switch defeats treble & bass at stereo main output
♦ rear panel switch converts the stereo main output to mono
♦ limiter with threshold control for the stereo main output
♦ front panel rotary level control for the mono zone output
♦ automatic talkover muting when the mic/line input is in use
♦ internal jumpers assign mic/line input pre or post treble & bass
♦ internal jumpers assign mic/line input pre or post main level
♦ internal jumpers assign mic/line input to main and/or zone
♦ internal jumpers assign stereo line inputs to main and/or zone
♦ internal jumpers assign talkover muting to main and/or zone
♦ separate internal talkover mute adjustments for main and zone
♦ infrared, wall-mount, custom, or third-party remote controllers
♦ wall-mount ‘Controller’ overrides commands from front panel
♦ remote control affects stereo input selection & main level
♦ default settings can be defined & stored for recall at power-up
♦ incorporates AES recommended grounding practices
♦
marked and UL / C-UL listed power source
♦ covered by Biamp Systems' five-year warranty