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Tweeter does not work in surround speakers

My left and right surround tweeters does not work but my mids do. i ohmed out the tweeter and im getting 5 ohms. is the speaker blown and if not what is the problem

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If you are trying to find out if tweeters are ok, place them to the mids
and listen. if good, then trouble lies in the individual amplifier inside ur set.

Good Luck

Posted on Dec 14, 2008

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I have polk audio rm 705 purchased from my friend a month ago. these are working fine but one day one speaker just have very low sound coming from tweeter where as the main speaker is silent.


Try switching the speakers left to right. If the same speaker is bad on both channels, the speaker is bad. If the good speaker is now bad, the unit driving the speakers is bad.

May 23, 2015 | Polk Audio Rm705 5.1 Channel Home Theater...

Tip

How to set up a seven-speaker home theater system


Set up a home theater

How to connect your speakers

In order to deliver surround sound, home theater systems require 5, 6, or even 7 speakers--and that's not even counting the subwoofer. Connecting all those speakers together can be quite a challenge, so here's a quick overview of the basics.

If you don't have an all-in-one, home-theater-in-a-box system, you'll probably need to supply your own speaker cables. There are several different types available--they vary in terms of wire size (or gauges) and termination types. Make sure you pick cable that's a good match for your speakers and receiver. And make sure they're long enough; the rear-channel cables in particular will be stretching all the way around the room.

Once you've selected your system and have all your speakers ready to set up, begin by placing each speaker at or near its intended location. Then, attach the cables to them one by one. After securely fastening one end of the cable to the speaker, connect the other end to the appropriate speaker output on the back of the A/V receiver. Be sure to connect the cable to the correctly labeled output.

For instance, the front-right speaker wire needs to go to the terminal labeled front-right. Also, make sure that each speaker connection is in phase, meaning negative to negative and positive to positive. Otherwise, your system's sound will sound out of whack. Repeat the process for every speaker in your system. Note that the subwoofer uses a coaxial-style RCA cable instead of standard speaker wire.

Once all the wires are connected, you should test the system with several DVDs and CDs, to ensure that everything is in working order.

For our first example, we used an elaborate 7.1-channel system, so it may have 1, 2, or several more speakers than your system. Some systems even employ wireless rear speakers, or virtual surround-surround modes that simulate multichannel experience from 3, 2, or even 1 speaker. And some listeners still prefer good old stereo sound from 2 speakers. No matter what type of speaker setup you prefer, however, the wiring basics remain the same.

How to position surround-sound speakers and a subwoofer
To get the best performance from a surround-sound speaker system, you must install each speaker in the correct location. There are three basic types of surround-sound speaker systems.

  • The 5.1-channel system has five satellite speakers and a subwoofer.

  • 6.1-channel systems have six satellites and a subwoofer.

  • And 7.1-channel systems have seven satellites and a subwoofer.

Start by placing the center speaker either directly above or directly below your TV. The center speaker can be perched atop a direct-view TV or mounted on the wall. Aim the center speaker at ear level.

In most cases, the front-left and front-right speakers can be wall mounted or placed on stands. However, if your speakers have rear-panel bass ports, they should not be wall mounted. Space your front-left and front-right speakers the same distance apart as the distance between your center speaker and your listening position. Position the front-left and front-right speakers no more than two feet above or below the front-center speaker. The tweeters in the front-left and front-right speakers should be roughly at ear level relative to your seating position.

Ideally, the surround-left and surround-right speakers should be mounted on the side walls of your room, slightly behind or parallel to your listening position. If your speakers have rear-panel bass ports, place them on stands instead. If installing the speakers on the side walls isn't practical, you can mount them on the room's rear wall or place them on stands behind your listening position. The surround speakers can be installed up to two feet above the front speakers.

Also, 6.1 surround systems have a back-center speaker. You'll typically mount this on the rear wall of your room, centered behind your seating position. Position the back-center speaker no more than six feet behind the surround-left and surround-right speakers. If your speaker has a rear-panel bass port or if the rear wall is too far behind your seating position, place the back center speaker on a stand instead. The back-center speaker should be installed at the same height as the surround-left and surround-right speakers.

Instead of a single back speaker, 7.1 surround systems use a back-left and a back-right speaker. These, too, are typically mounted on the rear wall of your room. Position the back-left and back-right speakers so that each is approximately aligned with the left and right edges of your listening position. Place the back-left and back-right speakers no more than six feet behind the surround-left and surround-right speakers. If your speakers have rear-panel bass ports,or if the rear wall is too far behind your seating position, place the speakers on stands instead. Install the back-left and back-right speakers at the same height as the surround-left and surround-right speakers.

A subwoofer is the last component of a 5, 6, or 7.1 system. Because bass frequencies are nondirectional, you can place the subwoofer in various locations. You may get the best performance by installing the subwoofer in the front of the room, approximately six inches from the wall. If you want more bass, try placing the sub near a corner in the front of the room.

Connect your DVD player to your A/V receiver--digitally
To hear a movie's soundtrack in surround sound, you must first connect your DVD player to an A/V surround-sound receiver. You'll need to make what is called a multi-channel-compatible connection.

The easiest way to do this is to use a cable that carries a digital signal. There are two digital options: optical and coaxial.

An optical digital connection, also called TosLink, uses pulses of light to deliver a digital signal. According to some experts, one advantage of optical digital connections is that optical cables don't pick up noise, while lower-quality coaxial cables can. Many, but not all, DVD players have an optical output. Most A/V receivers have at least one and usually multiple optical inputs. Plug one end of the optical cable into the DVDs player's optical-out jack. Plug the other end into the receiver's optical input.

Finally, you need to tell your receiver to use the optical connection whenever you switch to the DVD input. This is called assigning the input. Information about this simple process can be found in your A/V receiver's manual.

A second option is a coaxial digital connection. This type of connection is also used for cable TV, but the connectors are different. This type of coaxial cable has an RCA connector. Coaxial cables are less expensive than optical ones. In fact, you can use any old RCA cable to make a coaxial digital connection, and you won't lose any audio quality.

Most, but not all, DVD players, have a coaxial output. Some have coaxial and optical outputs, so you get a choice. Audiophiles argue over which connection is better, but it's very hard to hear the difference. Most A/V receivers have at least one and usually multiple coaxial inputs. Plug one end of the coaxial cable into the DVD player's coaxial-out jack. Plug the other end into the receiver's coaxial input.

Finally, tell your receiver to use the coaxial connection whenever you switch to the DVD input. Again, your A/V receiver's manual will have instructions for assigning an input.

on Aug 13, 2010 | Home Theater Systems

Tip

The Best Place to Put Your Surround Sound Speakers


If you can’t feel the vibrations everywhere—in your cheeks, ears, toes—you’re not getting the most from your surround sound system. One easy way to improve surround sound quality is to focus on speaker placement. Crutchfieldadvisor.com has a detailed tutorial, offering such tips as:
  • Place your center channel speaker directly above your TV—centered if possible. Align the front edge with the front edge of your TV screen to reduce distortion caused by sound reflecting and diffracting off the TV’s cabinet.
  • Position your front left and right speakers in front, and at equidistant points to the left and right, of your primary listening spot. Your front speakers should be at a 22°–30° angle with respect to your television.
  • The tweeters should be at ear level when you’re seated.
  • Position surround sound speakers so that they’re ear-level when you’re standing.

on Dec 18, 2009 | Home Theater Systems

2 Answers

I have just bought a technics sc-dv290 hi-fi off of my cousin and found out the mid range and the tweeters have blown does anyone know where i could get replacent tweeters and mid-range speakers for it if...


As you probably know, these are the individual model numbers:

SC-DV290 the base unit
SB-DV290 speaker set

Front SB-DV290
Center SB-PC95
Surround SB-PS95

I'd scour Google or eBay for any or all of those models. Orphan speakers appear periodically.


Feb 10, 2011 | Technics SC-DV290 System

1 Answer

Alesis M1 Active 620 studio monitor cutting out


I see from the manual there are several controls on the speaker that could affect the sound in the way you describe (gain, hi- and mid-boost, acoustic space). Why don't you compare the actions of each control with the working speaker as the standard and a test tone or FM noise as the source? It might help you to identify a specific internal function that has changed. After that, someone's going to have to crack it open and do surgery.

You might also try using the opposite input (TRS vs XLR) than the one you're using. It might reveal something.

Mar 13, 2010 | Alesis M1-Active-MK2 Powered Studio...

1 Answer

How to create surround effect on cds/dvds which are not recorded on surround technology on home theatre dav dz 777


There is no way to do this in a controlled manner without re-mastering the disc, an unrealistic option.

However, there is a very simple way to extract the out-of-phase portion of a stereo recording, which can yield a quasi-surround sound effect.

To get this effect, connect an additional rear speaker to the positive ( + ) connection of the right speaker output and the negative ( - ) connection of the left speaker output.

Please keep in mind that this only works with a stereophonic (not mono) source and is fairly subtle.

Make sure the speaker you use is at least 8 ohms.

This is an old trick that pre-dates surround sound and works with music CD's too.

This set-up will probably degrade the sound of a true Surround-Sound recording so consider wiring a simple switch to disconnect the additional rear speaker when not in use.

Hope this helps.

Snakeplissken

Jul 01, 2009 | Sony Home Theater Systems

1 Answer

4.1 speaker setup


So basically if im guessing right you have four satellite speakers(left, right, left surround and right surround) and a sub woofer.

it is reletively easy to setup any sort of surround solution.

the front speakers shoud be set at ear level or angled towards the listening position and the rear speakers shoud be set in a straight line to the ear at a max height of two feet. or at the rear of the room, same height agled towards listening position.
The sub can be place anywhere in the room.

if you give me specific details like size of room type of speakers power handling of speakers, type of amp you are usuing seating area etc i could help you out futher.

all the best
cheers

Jul 15, 2008 | Home Theater Systems

1 Answer

Sound cuts out after a few minutes of operation


I blew the tweeter in my jbl stadium floor standing speaker. I would like to know how to remove the cover in order to replace the tweeter. I already purchased the tweeter and it is on the way. I don't want to damage anything in my attempt to remove it.

Nov 13, 2007 | RCA RT2760 System

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