Product Features
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the power. When the power switch is on the I position, the front panel power LED will light up.
Channel 1/2 24VDC battery backup connector:
The SPA can be operated with battery backup. Use the channel 1 and channel 2 "24VDC Battery
Backup" connector to do so. This 24VDC power supply can be used when no AC power is available.
When in use, the front panel Power LED will be lit as well as the front panel DC LED.
Fault LED On/Off:
Enable/disable the Fault Power LED indicator. In need of turning off the indicator, use a thin
screwdriver to press the retractable button.
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Channel 1/2 Outputs:
Each channel outputs a replica of the corresponding balanced audio input signal either on the XLR
connector or on the Euro-terminal block.
The following table lists the pins of XLR connector(both Female and Male):
Item
Description
Pin1
Chassis ground (cable shield).
Pin2
Positive polarity terminal for balanced audio circuits (aka "hot").
Pin3
Negative polarity terminal for balanced circuits (aka "cold").
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Channel 1/2 Inputs:
For each channel, there is an XLR balanced input and a Euro-terminal block balanced input. Each
input can be gain adjusted to suit the user’s needs. The On/Off gain switch can instantaneously
bypass the gain controller and set the channel gain amplifier to maximum.
AC Power Inlet:
The 3 pin IEC connector is located on the left of the amplifier’s rear panel. It accepts a standard mains
power lead fitted with an IEC connector.
For 115 V, fuse rating:
SPA 2060: 2.5A
SPA 2120: 5A
SPA 2240: 8A
For 230 V, fuse rating:
SPA 2060: 1.25A
SPA 2120: 2.5A
SPA 2240: 5A
Channel 1/2 Audio Output:
For each amplifier channel, there is a dedicated Audio Output connector for connection of either 8
Ohm speakers, 70V speakers or 100V speakers. For the 8 Ohm connection and if you are using more
than 1 speaker, please ensure that speakers are wired in a way that the total impedance load is
between 8 Ohm and 16 Ohm. The Com point is the negative terminal and 8 Ohm, 70V and 100V are
the positive terminals.