4-pair speaker selector
Our take on the Niles® SPS-4
Add up to 4 pairs of speakers to your system with this handy tabletop speaker selector from Niles Audio. Protection circuitry is built in, so there's a safe operating load for any amplifier or receiver rated up to 100 watts per channel.Details:
- accepts speaker wires up to 14 gauge or pin connectors
- 8-1/2"W x 2"H x 7"D
- warranty: 10 years
What's in the Box:
- Speaker selector
- Self-adhesive room labels
- Warranty card
Why Shop With Us?10 Reasons.
- Spring clip connectors in rear accept up to 14 gauge speaker wire
- Push button selector switches for 4 speaker pairs
- Impedance switch on the front panel helps protect amplifier
- Construction: black metal chassis with padded feet
- 100 watts per channel continuous power handling
- Flat frequency response from 20-20k
- Use 4-8 ohm speakers
Tech Notes:The SPS4 connects all speakers in
parallel and the button on the front of the unit adds 2.5 ohms of resistance to the total
load. Ohms law can then be applied to determine the operating load of a given combination.
For example: when 4 pairs of 8 ohm speakers are used with this selector's built-in
impedance correction circuit, the amp will see a 4.5 ohm load. If you use 4 pairs of 4 ohm
speakers, the total load drops just below 4 ohms. In this case be sure your amplifier can
handle a 4 ohm load.
Note: The manual for this model indicates that it should not be used with connections from A and B speaker outputs simultaneously, however if the amplifier/pre-amp or receiver is connected in series the connection is ok, volume expectations should be kept low. (The amp may be driven to clipping for lack of power when 3 or 4 pairs of speakers are connected.) [per Niles 3/10/93]
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