Power Connections

AC Connector and Power Switch

The AC connector accepts a standard modular AC power cord. One power cord is included with your speaker. Use the Power switch to turn the speaker on or off.

Voltage Selector

Before connecting a DSM1 speaker to a power source, make sure the Voltage Selector setting matches your local voltage (100–120V or 220–240V).

Fuse

The fuse protects components of the DSM1 speaker from being damaged by electrical under- or over-powering, spikes, and other anomalies.

A 2.5 Amp fuse is required for both the 100–120V and the 220–240V settings.

Make sure to use a fuse rated at 2.5 Amps. Do not use fuses of any other rating, or you risk damage to the unit

Inputs

Input Selector Switch

The input selector switch selects between the following input states for the speaker:

Analog Activates the analog inputs of the speaker.

Digital Activates the digital inputs of the speaker.

Digital Standby Activates the digital inputs of the speaker, but automatically puts the speaker in a low-power standby mode when the digital clock signal is lost for more than one second (for example, when the digital source is powered off). When the clock signal is restored, the speaker wakes up from standby mode.

Analog Inputs

The DSM1 speaker provides an XLR analog in- put connector and a balanced 1/4-inch TRS ana- log input connector.

The analog input signal is converted to a

96kHz, 24-bit digital signal for crossover/EQ processing, and converted back to analog just prior to the power stage of the driver amplifiers.

Signals may be sent to the two analog input con- nectors at the same time. When two analog in- put signals are present, they are summed.

XLR Connector

The XLR Analog In connector is balanced. (If the signal source is unbalanced, connect the unused pin to ground.)

1/4-inch TRS Connector

The 1/4-inch TRS Analog In connector is bal- anced. (If the signal source is unbalanced, con- nect the unused pin to ground.)

Analog Input Sensitivity Switch

The analog input operating level can be switched between –10 dBV and +4 dBu. This set- ting applies to both the XLR and 1/4-inch TRS analog inputs. For information on the appropri- ate operating level for your audio source, see the manufacturer’s specifications.

4M-Audio Studiophile DSM1 Guide