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Refit the rubber, you can find itbon eBay, its called reconing actually in this case the cone is the inlybpart wich you dont want to replace... The rattling is beingproducer due to the fact the rubber normally holds the cone ibto positionering over the coils. This rattling is not good can defect your cone. So dont play it roll you got a new rubber fitted!
The HTR-420 has only a single subwoofer output. It is the socket on the lower left corner. The other subwoofer socket is part of the multi-channel input.
Because of the age of the 420, it comes from a time when optical and coax connections were not so common and DVD players had 6x phono/RCA sockets to send out the surround signal in analogue format. The multichannel input is for sending a signal in to the amp, and not for getting a signal out. That's why the sub doesn't get a signal from that socket. Use the proper subwoofer out. That's what it is there for.
The 420 was designed to run Speakers A+B together if required. However, you must observe the minimum impedance loading if you connect up two sets of front speakers and run them simultaneously.
The minimum Impedance for each set of front speakers is 8 Ohms. If you're recycling old surround speakers from a Home-Theater-in-a-Box system, or the speakers have no labels for impedance on the backs then you can be fairly sure they are not 8 Ohm. That could be the problem.
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
surround and subwoofer may not work if there is an additional graphic equaliser operating. 1. check in your receiver speaker setting ensure your speaker setup doesn not have subwoofer set to NONE. this will block any signal to your subwoofer socket. 2 when you select your surround sound setting setup, ensure you select the speaker mode you want, if there is a multicontrol knob, cycle through the choices select subwoofer mode and set it to yes. if you have set-up small speakers S in your speaker settings then it could be that subwoofer is set to yes automatically if you have large speakers L, subwoofer has to be set additionally in the subwoofer setting. 3 test subwoofer on alternative device to test it is working ok consult manual on enjoying surround sound and adjusting the speaker settings.
I have the same system, the ports for surround speakers only seem to work with the actual surround speakers I bought mine with. I did try to change them but found a sound issue. Looking to buy a new 5 cd changer as mine was damaged during our recent move. Looking to buy model number DX-Z9400M
Sounds like the old stuck button thing after a move??? What i mean it go over all the push buttons and maybe you will find one that is not pushing in and returning??? If alls ok then you should check the obvious like bent shafts or balance controls ect. ay have jogged something inside and you will need to see a pro to assit you unless you know how to trouble shoot solid state electronics?? These units have no real serviceable parts inside. Check with your owners manual for the sevicer nearest you. If they are not listed call the service # or try 1-800-289-AIWA . good luck