13
12
ST-501D SQ MINI Controls/Speakers
2
1
1• RCA In/Out (Linked)
2• Variable gain control
3• Low Pass frequency control
4• Bass boost frequency control sets the
center point of the boost
5• Subsonic filter
6• Green power-on LED and red protect LED
7• Master/Slave selector when linked
8• Remote control
9• RCA input (see labels on harness)
10• Phase selector
3
4
5
7
8
9
10
1• Ground to frame or chassis part directly
connected to the frame
2• Turn-on trigger wire
3• +12V at Battery positive terminal
4• Speaker output
2
1
3
4
6
Strapping the ST-501D SQ MINI
The ST-501D SQ MINI amplifier is true mono unit and you can double his power by
“strapping” two units of the same model together to drive a single voice coil. Always keep
in mind that each amp must see a minimum load of 2 Ohm (1V per amp).
• Decide which amplifier will be the “master” and which will be the “slave”, and move the
LINK selector to the corresponding position
• Connect the head unit output (Full range or bass if available) to the LOW (RCA) input
of the master amplifier
• Connect the RCA link of the master amplifier to the RCA of the slave amplifier with a
single RCA cable
• Connect the Bass Remote to the Remote In of the master amplifier
The master amplifier is now the control amplifier. All the adjustments you make to the
bass remote and to the master amplifier’s other controls will be transferred to the slave
amplifier, and the slave amplifier will be driving the negative side of the signal and have
no control functions of its own.
Go to Pag. 18 to see how strapping the outputs.
