The SMA1 is a line level, 2.5 Watt, selectable 70V or 8 Ohm speaker
driver and SM series microphone interface typically for use in 2 way audio surveillance systems. connects to DVRs and remote monitoring equipment. The SMA1-LP can also be used in any single zone public address application requiring 2 way communication. Use one of our Sound Surveillance speakers with a built in 70V transformer & SM1 microphone for cable runs up to 1000 feet.

Features:

• Line level (0db) audio input and outputs.
• RCA input / output jacks.
• Adjustable independent volume controls for speaker and microphone.
• Selectable 70V or 8 Ohm output level.
• 2.5 Watts RMS power output.
• Frequency response 200-18Khz.
• Short circuit protected.
• Built in 70V 3w audio power transformer.
• Terminal block speaker and microphone
  connections.
• LED power indicator.
• Power: 12vdc @ 250ma
• PPTC fused.
• Black plastic ABS housing.
• Dimensions: L 4.2 x W 2.7 x H 1.6
• Weight .123kg

Includes:

• SMA1-LP Speaker driver / microphone interface.
• 15Vdc 800MA AC adapter.
• 2 each 6’ RCA patch cords
• Installation instructions