Bose Lifestyle SA-3 2-Channel Amplifier Logo
anthony conc Posted on Mar 18, 2007
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Bose amplifier does not work with a 6 speaker selector

I have a Bose lifestyle surround sound system. My house has speakers built into the walls in 4 of the rooms. I wanted to tie these house speakers into my Bose system. I hooked up the SA-3 amplifier and ran the house speakers to a speaker selector box. I connected this to my aplifier, but it doesn't work. There is no sound at all. I know my amplifier is set up properly because I tested one set of the speakers directly to the amplifier and it works. When I run the speakers through the speaker selector box, there is no sound. I'm not sure what ohm the speakers are, but the speaker selector box controls 4, 8 or 16 ohm speakers.

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Mymp Mympop

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It sounds like you are experiencing an issue with the speaker selector box you are using to connect your house speakers to your Bose Lifestyle surround sound system. There could be a few different reasons why the speaker selector box is not working properly in this configuration. Here are a few potential causes and solutions to consider:

Incorrect wiring: Make sure that the wiring between the amplifier, speaker selector box, and house speakers is correct. It is important to follow the manufacturer's instructions for wiring the system to ensure that it is set up properly.

Incorrect impedance matching: The impedance of the speakers and the amplifier must be properly matched in order for the system to work properly. If the speaker selector box is not compatible with the impedance of the speakers or amplifier, it can cause issues with the sound.

Speaker selector box malfunction: It is possible that the speaker selector box itself is malfunctioning or damaged. If this is the case, it may need to be replaced.

If you have checked the wiring and checked that the speaker selector box is compatible with the speakers and amplifier, and the system is still not working properly, it may be necessary to seek the assistance of a professional audio technician. They will be able to diagnose the issue and recommend the appropriate repair.

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Connect 2 Amplifiers to One Set of Speakers

An amplifier is a device that transforms low-voltage signals from your source equipment into a signal strong enough to drive two speakers. By amplifying the comparatively low-level line (or microphone or instrument) level signals, amplifiers are responsible for driving loudspeakers with speaker-level signals. You can connect amplifiers to the speakers to enhance the sound performance. You can also connect 2 amplifiers to one set of speakers at one time.

Many questions arise when we connect 2 amplifiers to one set of speakers.

Possibility of connecting 2 amplifiers to one set of speakers

The common question which is asked by many people is that Is it possible to connect 2 amplifiers to one set of speakers? The simple answer is "yes". There are a variety of motives for attempting to do so. You might have a home theatre receiver for movies and a specialized stereo amp for music (as I do) but not enough room for two sets of speakers for each amp (or a wife, who vetoes this solution). You may have one large, strong "performance" amp for active or loud listening, and a smaller, less powerful amp for background music and nocturnal listening when the family is sleeping and loud music is prohibited (like I do in another room).

Connect 2 Amplifiers to One Set of Speakers

An amplifier is a device that transforms low-voltage signals from your source equipment into a signal strong enough to drive two speakers. By amplifying the comparatively low-level line (or microphone or instrument) level signals, amplifiers are responsible for driving loudspeakers with speaker-level signals. You can connect amplifiers to the speakers to enhance the sound performance. You can also connect 2 amplifiers to one set of speakers at one time.

Many questions arise when we connect 2 amplifiers to one set of speakers.

Possibility of connecting 2 amplifiers to one set of speakers

The common question which is asked by many people is that Is it possible to connect 2 amplifiers to one set of speakers? The simple answer is "yes". There are a variety of motives for attempting to do so. You might have a home theatre receiver for movies and a specialized stereo amp for music (as I do) but not enough room for two sets of speakers for each amp (or a wife, who vetoes this solution). You may have one large, strong "performance" amp for active or loud listening, and a smaller, less powerful amp for background music and nocturnal listening when the family is sleeping and loud music is prohibited (like I do in another room).

Safety of using two amplifiers with a single pair of speakers

If you, do it directly, simply run speaker cords from both amps to your speakers - no way. If you do that and then switch on both amps, you will burn at least one of them, if not both.

Switch for 2 amplifiers

In order to connect 2 amps, you'll need a switch, but it must be a special sort of speaker level switch. The switch must perform the following tasks.

1) It must be a "break before make" kind (break the connection to one amp before connecting to the other) to prevent both amps from being linked to each other for even a fraction of a second - it must be impossible to pick both amps at the same time.

2) It must switch all four connections separately: L+, L-, R+, R- (no common ground).

3) Ideally, it should just include binding posts, cables, and the switch itself on the inside (no resistors, no protection circuits, impedance matching etc.).

How to build a switch


You can easily make a switch to connect 2 amplifiers to one set of the speakers. You need some of the parts to make a switch. The parts are given below:

1) 4PDT switch

2) DPDT switches

3) sets of stereo speakers (biding posts)

4) 5m speaker wire (To connect internal wiring, you may require solder wire and a soldering iron)

5) Mounting screw (few needed)

6) Glue

For more detailed articles/blogs please visit: https://smartelectrohub.com/speakers/connect-2-amplifiers-to-one-set-of-speakers/


For more detailed articles/blogs please visit: https://smartelectrohub.com/


If you, do it directly, simply run speaker cords from both amps to your speakers - no way. If you do that and then switch on both amps, you will burn at least one of them, if not both.

Switch for 2 amplifiers

In order to connect 2 amps, you'll need a switch, but it must be a special sort of speaker level switch. The switch must perform the following tasks.

1) It must be a "break before make" kind (break the connection to one amp before connecting to the other) to prevent both amps from being linked to each other for even a fraction of a second - it must be impossible to pick both amps at the same time.

2) It must switch all four connections separately: L+, L-, R+, R- (no common ground).

3) Ideally, it should just include binding posts, cables, and the switch itself on the inside (no resistors, no protection circuits, impedance matching etc.).

How to build a switch

You can easily make a switch to connect 2 amplifiers to one set of the speakers. You need some of the parts to make a switch. The parts are given below:

1) 4PDT switch

2) DPDT switches

3) sets of stereo speakers (biding posts)

4) 5m speaker wire (To connect internal wiring, you may require solder wire and a soldering iron)

5) Mounting screw (few needed)

6) Glue

For more detailed articles/blogs please visit: https://smartelectrohub.com/speakers/connect-2-amplifiers-to-one-set-of-speakers/


For more detailed articles/blogs please visit: https://smartelectrohub.com/

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Your wall speakers may not be connected.... disconnect each speaker from the selector box and test with a small AAA battery to see if they are connected by putting the battery between each speaker's wires , you will hear it crackle ,then gradually connect each wall speaker onto the speaker connector box . If the first set does not work i suggest there may be a problem with your speaker selector box . Good luck

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