Question about Definitive BP7004 Main / Stereo Speaker

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Sub not working

I have a pair of definitive technologies 7004's for my left and right speakers. I just bought them from a guy on craigslist. He says he had no problem with the sub's.
I'm not using the optional LFE input on my pair of mains. My reciever has my mains set to large, and sub is set to none. One sub works in one tower and not the other.
When I plug the bad tower into the wall, i can hear the amp 'pop' like the DT site says is normal. the red light is on, on the back, which signals the amp is on. however the sub doesnt ever activate. no vibrations. If i take my other 7004 and swap it in place, using the same speaker connection and electrical socket, the sub works fine.
This tells me the amp is ok? but something else is messed up? How do I troubleshoot this? I'm afraid to unscrew the back plate and mess something up.
when I transported them in my car on the way home I had the speakers resting on their backs. I was afraid to rest them on their sides since they have speakers on the sides.
On the back of this tower the level knob axle was a little bent. meaning when you turned the knob it wobbled a little. I bent it back straight and it feels like it funcitons just like the other tower. the knob is still turning something in there. it doesnt 'feel' broken.
any help would be greatly appreciated!
Thanks
Rob

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Posted on Jan 02, 2017

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SOURCE: placement of definitive supercube 2

Make shure your crossover on the amp is set at 80hz. If closer to side walls you will get more response but may be muddy. Make sure it goes low enough to comliment the klipchs.
GOOD LUCK
BIGRED

Posted on Apr 11, 2008

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1 Answer

I ended up with one piece of a Teac model CD-X8 MIcro Hi Fi System. you can see what the whole system looks like at http://www.amazon.com/Remanufactured-CD-X8-Wall-Mountable-System-Subwoofer/dp/B000B65GV6...


Yes - you have the sub-woofer. It is a powered sub-woofer with a built in amplifier for both itself and a pair of small satellite speakers. Frankly, given the low cost of the whole system it may not be worth selling on ebay due to the high shipping costs of such an item, but I imagine you could get $30 for it or so on local craigslist or something, assuming you have no use for a sub-woofer...

May 05, 2011 | Audio Players & Recorders

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There is not a subwoofer input jack on the back of this subwoofer. There are a set of input (negative and positive) terminals and a set of output (negative positive) terminals like would hook speaker wires...


On the back of the sub woofer you have two sets of binding post / some have spring clip terminals ( red & black ) labeled Speaker In ( sometimes High Level In ) and Speaker out.
Take 2 pairs of speaker cables and connect one end to the speaker out socket of your amplifier ( left & right ) . The other end of the cable should be connected to the sub woofer's Speaker In socket , Red to red and black to black. Now on the Speaker Out socket of the sub woofer connect your existing pair of speakers using another pair of speaker cables. If your sub woofer has a Hi Pass filter built in , you may not hear bass coming from your existing speakers with this kind of connection. Good if you have small satellite speakers.

Mar 12, 2011 | Audio Players & Recorders

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I have a Fisher RS-909 Surrond Sound amplifier. It has no "sub out" jack. I had the sub-woofer working in the past by wiring it as shown in the manual. The problem is that the system was in...


Alright i had a chance to look over things, this is how you are going to hook up the sub. first we'll be connecting the surround sound unit to the sub woofer.
surround sound unit sub woofer
left front: positive (+) <-----to------------->(+) left speaker level in
negative ( - )<- - -to- - - - - - ->( - ) left speaker level in

right front: positive (+) <-----to------------->(+) right speaker level in
negative ( - )<- - -to- - - - - - >( - ) right speaker level in

now that the surround sound unit is connected to the sub woofer you will need to connect the front surround sound speakers to the sub woofer.
sub woofer front surround sound speaker
left speaker level out (+)<-----to--------> (+) left front speaker
left speaker level out( - ) <- - - to- - - - ->( - ) left front speaker

right speaker level out (+)<-----to--------> (+) right front speaker
right speaker level out( - ) <- - - to- - - ->( - ) right front speaker

Alright now that the wires are all over the place and plugged in
turn everything on and see how it sounds. let me know if everything is working as it should. if you need help with anything else or if something does not seem right please feel free to contact me via e-mail or phone
Mark Woodring

Feb 13, 2011 | Audio Players & Recorders

1 Answer

Hi i have just bought a alpine dvd headunit the 105r and it only has 1 phono sub output and not the left and right phono output how do i connect my amp to this


it has 3 pairs of rca outputs, one pair for the front, one for the rear, and another for the subwoofer. the other sub preamp output is not needed to run to your amplifier.

For better sound quality, buy an RCA Y splitter cable (single male connection to double female connections), and run your regular pair of rca cables to the amp.

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I need to set up 4 pair of speakers, two zones. all ceiling mounted.


Okay! all ceiling mounted speakers. I don't know about 4 pair of speakers.Here is the load down:
First pair of ceiling speakers would be left and right front from speaker A or Main output behind your receiver.
Second ONE,but a pair would be connect to the center channel output as your center speaker.
Another pair would be connect to the surround sound left and right(NOT surround BACK left/right.)
Now,you have 5 channel setup at this point,you still need to purchase a power subwoofer to the SUB PRE-OUTPUT behind your Denon receiver.

For Zone two,you would need to connect your other pair of speakers to surround BACK left and right output.
Go to your Denon MENU button,depending on which model you have,some of them will have an on-screen display feature(you would need to have a composite video cable connect from the video output behind your receiver to the TV video input in order to use the on screen menu.)If not,you would have to it view on the front panel of the A/V receiver.
You need to read the detail on how to setup the video and audio as well as distance and DB for the receiver through the menu button.
I will be frank with you,if you are an amateur,Denon is NOT easy to be setup on the first time.
solutiondoct

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1 Answer

Only my sub and rear left and right speakers are working


Come on you guys. You cant run a 5.1 system on a 2,1 sound card. Get you a good ATI 5.1 sound card from Tiger Direct.You get lots of software with the ATI sound card.

Oct 16, 2008 | Logitech Z-5500 Computer Speakers

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Subwoofer to receiver hookup


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Second is via a low level output from your receiver / amp to the low level input on your sub amp. This is normally done via a RCA type of patch cable and connected to the sub woofer RCA jack on the rear of the source receiver or amp, Next run the patch cord to the sub amp an into the RCA jack input. IF you have a right and left input, use the Right input.

john

Aug 18, 2008 | Audio Players & Recorders

1 Answer

Replacement speakers


You should be able to use any of the "bookshelf" speakers to replace the Front Left/Right and Rear Left/Right. I would go ahead and get a dedicated Center speaker. I bought a Pioneer center speaker and a pair of KLH 3-way bookshelf speakers at Radio Shack at low prices. I also bought a pair of Insignia 3-way bookshelf speakers. I put this all together with a Durabrand Home Theature system (dumping the satellite speakers). There is better range and a much fuller tone with these speakers versus the originals. Even if you hadn't lost the speakers, I would recommend this as a good upgrade.
Hope that helped.
Leonard

Aug 12, 2008 | Durabrand HT-3915 System

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