Question about B&K AV 125.7 7-Channel Amplifier

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B&k amp tx 4430

I would like to know how to install this amp into my system? it only has 3 inputs on the back left ,right & center/ 1 rca style plug hole for each. do i use a 2 into 1 rca patch cord? thanx marcus

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  • marcuswayne Dec 11, 2007

    i also have just recived a pair of infinity rti6 or rti b very large speakers. it has a mid and tweet panel that is 5 ft tall and 2 ft wide the bass speaker has 6/ 6inch subs in it and is also 5ft tall, can anyone tell me about these speakers? thank you.

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We need to know more about what kind of system you are installing it into.

Posted on Dec 17, 2007

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How do I connect a Panasonic home theatre audio system sc-htb18 to a Panasonic tx-50a300b tv


Plug the red and white (right and left) RCA to the output of the TV and the other end to the input of the home theater. Then select the input on the home theater to match where you have it plugged into on the back.

Dec 29, 2014 | Panasonic Televison & Video

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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 | Audio Players & Recorders

1 Answer

How can I connect my Onkyo TX-SR507 to a PC to play MP3 files


The easiest way is to use a 1/8" stereo to dual RCA cord and connect the output of the sound card to an AUX input on the receiver. These cables are readily available and cheap. You shoul dhave 3 mini jacks on the back of the computer related to the sound card setup.

1) Audio input mic
2) Audio input line
3) Audio output line

Connect the receiver to the audio output line jack.

Dan

Jan 30, 2010 | Onkyo Tx-sr507 A/V Receiver

1 Answer

Hi, I am having trouble connecting my Nintendo Wii to my Onkyo TX-SR507


Take the adapter cable from the Wii that plugs into the back of the Wii and converts the output(audio/video) into RCA style pin plugs, you will have: RED=right channel audio, plug it into any of the red audio INPUT on your Onkyo, then you will have WHITE=left channel audio, plug it into the other white INPUT jack next to the red plug on the Onkyo, then you will have YELLOW= video(picture) that will go directly to the yellow video INPUT on the back or side INPUTS of your TV.
Then when you want to play the Wii, set the input mode on the Onkyo to the inputs that you connected the red and white plugs into, then change the input on your TV to which ever the input is labeled on your TV in which you plugged the yellow plug into, you now will have sound comming from your Onkyo and the Wii up on the TV screen ready to play. Good luck!

Jan 27, 2010 | Onkyo Tx-sr507 A/V Receiver

2 Answers

I am trying to hook up an ancient Kenwood KAC-801 amplifier. The original input cable has 1 red, 1 black, then another smaller awg white (1) sharing a common with another small awg yellow. Applying power...


Yes, keep in mind that the amps have a constant power (the large red wire) and need a remote signal to tell them when to turn on/off. This wire connect to a switched 12v from the ignition or radio blue wire (if aftermarket)

Nov 01, 2009 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

Subwoofer


Yes. In the back of the receiver, there should be an RCA line level subwoofer output. All home theatre receivers should have it. All you do is plug an RCA cable into the line subwoofer out, and plug it into the input on the subwoofer. Then, the front channels will be free for the front speakers.

Oct 11, 2009 | Onkyo TX-SR800 Receiver

1 Answer

How do i hook this up Samsung HT-WX70 Theater System with Wireless Speakers


1. Connect the front left, front right, center, and sub woofer speakers to the back of the home theater system.

2.
With the home theater system off, insert the TX card into the TX Card connection (WIRELESS) on the back of the home theater.
Important:
Make sure to insert the TX card with the slanted portion of the card facing left.

3. C
onnect the rear left and the rear right speakers to the back of the SWA-3000.

4.
Plug the power cord of the SWA-3000 into an electrical wall outlet, and then switch the power switch on the back of the SWA-3000 to [ON]

Hope this helps!

Jun 27, 2009 | Samsung HT-WX70 Theater System

2 Answers

Need wireing diagram for instalation


Hello bulldogwjm,

You can download the Kenwood manual here:

http://www.kenwoodusa.com/Support/Car_Entertainment_Owners_Manuals/#_

Just select the model number from the dropdown and download it.

Hope this helps.

Apr 14, 2009 | Car Audio & Video

1 Answer

Wiring question


Hi, If I got the specs right, your amp is a 4 channel hence the 4 RCA inputs. Probably the simplest would be to feed the 2 X RCA out of the deck to the 1 & 2 RCA in of the amp. This amp has also a line out, feed the amp's lineout back to the 3 & 4 in. This way, all four channels get same input from the deck and you will have identical power to all 4 speakers (front & rear). An afterthought is to also use the 4 outputs of the deck (since they are there anyway and it is not a good tech practice to leave outputs without load/speakers) and connect 4 mid-range or 4 smaller speakers. Hope this be of some idea/help. Post back should you need additional information. Good luck and kind regards.

Sep 02, 2007 | Performance Teknique ICBM-774 Car Audio...

2 Answers

How do you connect a pioneer d2 navigation system to a 2006 ford expedition entertainment system


You need to identify the four wires that carry the DVD audio in the factory plug, and re-wire them to RCA plugs that can be used with the Auxiliary input RCA jacks on your Pioneer unit. The four wires should be: Left (+) light green Left (-) white Right (+) red Right (-) black The easiest way is to purchase some inexpensive RCA cables (or better yet, speaker wire with RCA ends). Cut the cables and wire the center pin conductor wires to the (+) audio wires in the stock plugs, and connect the outer shield conductors to the (-) wires. Then connect the RCA plugs to your head unit's auxiliary input jacks.

Aug 08, 2007 | Pioneer AVIC-D2 DVD Nav/6.5"...

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