Monoprice 6857 4-channel A/B Speaker Selector - Manual

Features
Thank you for giving Monoprice the chance to win your business! We are confident you will find that offers an Monoprice
outstanding combination of performance and value in everything we make. To ensure you get the most out of your new
amplifier, please take a moment to read this manual before you get started.
The Monoprice MP-DSS4 are low-profile speaker selector boxes that allow you to distribute a stereo high-level (amplified)
signal into multiple zones. These models include a manually activated impedance protection circuit that can be turned ON
to prevent the impedance presented to your receiver from dropping below an unsafe level of 5 Ohms, regardless of the
number and impedance ratings of your speakers. The protecting switch can also be turned off when used as part of a
planned system of impedance matching volume controls, allowing you to get the most out of your amplifier. If you are
unsure, consult a professional contractor.
Push-pin Terminals
Connecting Speaker Cables
1. Route the speaker cables from the amplifier and from each speaker zone to the speaker selector.
2. Strip 3/8" insulation from the end of the cable and twist the exposed end to avoid fraying.
3. Press on a "push-pin" terminal to reveal an eye into which the twisted cable is inserted; release the terminal to lock.
Connecting your Speaker Selector
The terminals on the rear of the speaker selector will accommodate 14 gauge cable which will suffice for even long
connections (greater than 100 feet of wire). For shorter distances, 16- or 18-gauge wire will suffice. For behind-the-
wall installations, we recommend using UL Class 3 approved cable (marked "CL3 ) for compliance with local building
"
codes. When connecting a speaker and amplifier, it is important to retain the correct polarity. To do this, be sure that
the wire attached to the +, red, or positive terminal on the speaker connects to the +, red, or positive terminal on the
rear of the selector box. Similarly, the -, black, or negative terminal on the speaker must connect to the respective -,
black, or negative terminal on the selector box. Polarity should also be maintained when connecting your amplifiers
outputs to the amplifier inputs on the selector box.
Zone Buttons
Never place a speaker selector where it is exposed to excessisve moisture or heat. Leave at least 1 of space above the unit for heat dissipation. "
A
B
1 2 3 4
A
B A
B A
B A
B
MP-DSS4 have the ability to select between "A" and "B" sources. Above is an 4-position plug on the left rear of the unit
which is labeled "A B".This is where the speaker level inputs from the two sources ("A" and "B") are connected. Attach the
wires in the same manner as the speaker wires connect to the outputs of the MP-DSS4 unit (see below).
Front
Rear
3/8 "
Monoprice, Inc.
11701 6th St, Rancho Cucamonga, CA 91730, USA
http://www.monoprice.com
MP-DSS4
4-Channel A/B Speaker Selectors
MP-DSS4 Dual Source 4 Speaker Selector Self Impedance Matching
PROTECTING
CIRCUIT
SWITCH
Specifications
Listening Zones
Protection Circuit High Power Resistors
Power Handling with Protection Circuit ON
Power Handling with Protection Circuit OFF
Dimensions: L x W x H
MP-DSS4
4
70 watts/channel
140 watts/channel
2 x 10 ohm/15 watt per channel
216 x 112 x 49 mm
8.5" x 4.4" x 1.93"
A/B source input