I do not have pre-amp outputs on my equipment so can I connect the loudspeakers to the speaker outputs of my amplifier?

Yes and No. Do not connect the loudspeakers directly to an amplifier output, as the loudspeaker's input stage will be damaged. Use the simple attenuator design shown below. Be sure to make all of the connections shown to minimise noise interference. The 2-conductor method is preferred over the 1-conductor method as it gives increased noise immunity and less signal distortion. It is important that all of the connections are made otherwise there could be a loss of input signal level (e.g. XLR pin 3 left floating) or induced hum (e.g. chassis ground and audio ground connected together) due to ground loops. Note: do not connect the XLR chassis to XLR pin 1, as this will compromise the RF immunity of the loudspeaker's electronics.

Do not use this method on bridged amplifier designs as the amplifier may be damaged.

Speaker wire should be used between the amplifier and the attenuator. Screened wire should be used from the attenuator to the loudspeaker input. The attenuator box can be metal or plastic and one attenuator is required per loudspeaker channel.