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TSM8/ TSM12
OSD
AUDIO
Thank you for giving OSD AUDIO the chance to earn your business! We are condent you will nd that OSD oers an outstanding combination of performance
and value in everything we make. To ensure you get the most out of your new TSM8/ TSM12, please take a moment to read this manual before you get started.
1. Connections
To connect the amplifiers/receivers to the speaker selector, remove the AMP A/B connector by firmly pulling it out of its 8-pole socket. Strip 1/4” of insulation from the end
of each wire. Tightly twist the end of each wire until no frayed ends remain. Insert each wire into the appropriate hole on the removeable terminals (matching up the
polarity). Use a small screwdriver to tighten each wire into the AMP A/B connector. Insert the connector plug into the socket and lock in place . Be sure not to reverse
these connections or the TSM12 /TSM8 will not function properly. Follow the same procedure to connect each pair of speakers to the appropriate speaker connector terminal,
observing proper channel and polarity. If external volume controls are used, connect speaker wire from the appropriate speaker connector on the TSM12/ TSM8 to the volume
control input. Speaker connections can support multiple speaker pairs wired in parallel or series, provided their combined impedance is a minimum of 4 ohms.
2. Operation
To ensure safe operation of the amplifier, an impedance level must first be selected using the rotary switch labeled speaker pair located on the rear of the unit. This switch should
be set to the total number of speaker pairs being connected
If the amplifier and the speakers are both 4 ohm or 8 ohm, set the rotary switch to the number of pair of speakers connected to the TSM12 /TSM8.
If the amplifier is 8 ohm and the speakers are 4 ohm, set the rotary switch to TWICE the number of pair of speakers connected to TSM12 /TSM.8
If the amplifier is 4 ohms and the speakers are 8 ohms, set the rotary switch to HALF the number of pair of speakers connected to the TSM12 /TSM8.
After setting the proper impedance level, the speakers can be turned on and off in any combination.
Switch between the A and B amplifiers, push the AMP A / AMP B button located on the front panel.
to the unit. Set the switch based on the following conditions:
Autoformer Based Speaker Selector
Instruction Manual
3. Setting System Volume
It is important to properly adjust an impedance-matching system to avoid distortion or DC clipping (DC voltage will be produced from an amplifier that is overworked or that has an
improper load). These can cause an amplifier/receiver to go into protection, and can cause autoformers on volume controls to heat up, damaging system components. To set up
the system, the amplifier/receiver volume should be at its lowest setting, and the in-wall/selector volume control should be at the highest setting. Slowly adjust the
amplifier/receiver volume to a level that is acceptable for the amplifier to produce without clipping.
3-4
6
7-8
5
Number of
Speaker Pair
2
1
PAIR8
PAIR7
SPEAKERS
PAIR5PAIR6
PAIR4
PAIR3
PAIR1PAIR2
AMP B
AMP A
AMPLIFIERS
AMPLIFIERS
OSD
AUDIO
Listening Zones:
Power:
Dimensions: L x W x H:
Cable Gauge:
Warranty:
OSD Audio • 1405 Pioneer St • Brea • CA • 92821 • www.osdaudio.com • Tel (562) 697-2600 • Fax (562) 697-2668
8 (TSM8)
100 Watts per channels RMS continuous
200 Watts per channel average
300 Watts per channel peak
17” x 7.1” x 2.9”
Up to 14 Gauge wire
2 Years
12 (TSM12)
100 Watts per channels RMS continuous
200 Watts per channel average
300 Watts per channel peak
17” x 7.1” x 2.9”
Up to 14 Gauge wire
2 Years
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