The Niles SPK-1 Speaker-Level A-B Switcher is a two channel, speaker level A-B switch. The SPK-1 can be used to switch amplifiers, speakers, surround sound systems, or any application where a voltage-activated speaker-level switch is preferred. Applying 12 volts DC to the control input connector activates the switch. A control output connector is also provided. The control output is internally connected in parallel with the SPK-1's control input. The control output can be used to control additional SPK-1's by 'daisy-chaining' the control output of one unit to the control input of the next. Connecting two SPK-1's together enables you to switch four channels of speaker-level signals and connecting three units together lets you switch six channels, and so on. A maximum of 6 SPK-1's may be connected together in this manner. The control output can also be used to connect other Niles switching devices such as the AC-3 Voltage Activated AC outlet and the AVS-2 Voltage Activated Line-Level Switch. Please Note: This unit is not a Signal-Sensing Switcher; if signal-sensing is required use the SAS-1 or ABS-1, each sold separately.

• Replaces Manually Operated A-B Switches
• Audio Power Handling: 600W Per Channel
• SPK-1 Is Activated By 12Volt DC Signal (100mA Minimum)
• Requires 12Volt DC Adapter To Trigger SPK-1 From The Switched Outlet Of A Receiver Or Preamp, Can Also Be Triggered By The 12volt Output Of A Niles APC-2, AC-3, AVS-2, SAS-1 Or RFS-1
• 12Volt Control Output For Activating Other Niles Devices Such As An APC-2, AC-3, AVS-2, SAS-1 Or RFS-1
• Not A Signal-Sensing Switcher; If Signal-sensing Is Required Use The SAS-1 Or ABS-1
• Premium Nickel-plated Five-way Binding Post Connectors
• Dimensions: 6-13/16" Wide X 3-1/8" High X 5-5/16" Deep
• Warranty - 2 year limited

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