
SS2V70 70V 2-Zone 100-Watt Speaker Selector
P/N 38165
Quick Install Guide
INTRODUCTION
This SS2V70 70V 2-Zone 100-Watt Speaker Selector features two independent mono 70V
100-watt speaker zones, each with its own on/off switch and volume control knob. It has a
single 2-conductor input and a pass-through output, allowing multiple speaker selectors to
be daisy chained. It supports up to 80 watts of 70V speakers connected to each zone.
PRODUCT OVERVIEW
Front Panel
1. Zone 1 On/Off Switch
2. Zone 1 Volume Control
3. Zone 2 On/Off Switch
4. Zone 2 Volume Control
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Rear Panel
1. Zone 2 Speaker Output
2. Zone 1 Speaker Output
3. Input From Amplifier
4. Pass-Through Output
POWER RATINGS
Unlike ordinary speaker systems, which require complicated impedance calculations for
multiple speaker arrays, constant voltage (70V) systems simply add the wattage ratings of
each speaker together. However, unlike ordinary systems that can use their full power
output, constant voltage systems can use only 80% of the rated wattage of the amplifier
and the connected speaker selector. This speaker selector is rated for 100 watts, so the
connected speaker arrays must be equal to or less than 80 watts each. If each speaker is
set to 5 watts, for example, you can connect up to 16 speakers in each array.
INSTALLATION
Perform the following steps to connect this speaker selector to your 70V audio system.
1. Power off and unplug the amplifier.
2. Strip about 1/4" of insulation from both ends of three 2-conductor speaker wires,
then twist the ends tightly so there are no stray wire strands.
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3. Remove the ZONE 1 terminal block from the rear of the speaker selector.
4. Using a small flathead screwdriver, loosen the two screws in the terminal block.
5. Insert the stripped ends of one end of one of the speaker wires into the terminal
block, taking care to match the polarity, then tighten the screws. Ensure that there
are no stray wire strands.
6. Connect the other end of the speaker wire to the first speaker in the 70V speaker
array, taking care to match the polarity.
7. Insert the terminal block back into the rear of the speaker selector.
8. Repeat steps 3-7 for the second speaker zone and speaker array.
9. Remove the INPUT terminal block from the rear of the speaker selector.
10. Using a small flathead screwdriver, loosen the two screws in the terminal block.
11. Insert the stripped ends of one end of one of the speaker wires into the terminal
block, taking care to match the polarity, then tighten the screws. Ensure that there
are no stray wire strands.
12. Connect the other end of the wire to the 70V and Common terminals on your
amplifier, taking care to match the polarity.
13. Insert the terminal block back into the rear of the speaker selector.
14. (Optional) Connect a speaker wire to the THRU terminal block on the speaker
selector, then connect the other end to the INPUT terminal block on a second
speaker selector using the same procedure as described above. Repeat as desired.
15. Turn the two Zone Volume Controls fully clockwise to the full on position. Ensure
that each Zone On/Off Switch is in the on position.
16. Set the volume control on your amplifier to the minimum position.
17. Start audio playback, then slowly increase the volume on the amplifier until the
volume is at the highest level you will want with no distortion. If distortion occurs,
reduce the volume level on the amplifier until distortion can no longer be heard.
18. Reduce the volume controls on the speaker selector to a comfortable listening level.
From here on, leave the volume control on the amplifier alone and use the Zone
Volume Controls on the speaker selector to control the volume levels.
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ONLINE SUPPORT
Maximum Usable Speaker Wattage
33dB, 10 steps plus full off
OFF, 2 steps @6dB, 7 steps @3dB, ON
Monoprice is pleased to provide free online support. For order related issues, contact the
Customer Service department through the Live Chat link on our website
www.monoprice.com or via email at support@monoprice.com
For technical issues, contact the Technical Support department through the online chat
button on our website www.monoprice.com or by sending a message to
tech@monoprice.com
Check the website for support times and links.
SPECIFICATIONS
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