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General discussion

Can I add a fan to my receiver?

Jul 31, 2005 9:43AM PDT

I have a marantz 4500 receiver and the problem is it gets too hot because it is designed for 6 ohm speakers and my front speakers are 4 ohm so I added 2 ohm registers to each of the front speaker and it helped a little but now I am wondering if I can add 80 mm fan on top of the receiver.
Will the magnetic field of the receiver will effect the sound ?

Discussion is locked

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Can I add a fan to my receiver?
Aug 1, 2005 2:37AM PDT

You can add fan it will not degrade the sound, but it will add fan noise to your room.
Is your reciver in a cabnet or on an open shelf??? What kind of air flow is there around you reciver?? John

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Can I add a fan to my receiver?
Aug 1, 2005 8:09AM PDT

The receiver is placed 9.2 inches from the left , 8 inches from the right and 5.6 inches from the back wall, my receiver is in open shelf.

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question ?
Aug 1, 2005 8:57AM PDT

My JVC rx 8000 vbk has a switch on the back to change the amp impedence output from 8 ohm to 4 ohm located right next/underneith the main speaker output...Does your Marantz not have a simular switch?

Also there are a variety of ultra quiet computer fans you can pick up but with that much space around the receiver you will need to move a great deal more air than they push to keep the amp cool or cut and mount fans in the Marantz case.

Have you thought about using the impedence leveling circuitry built a multizone speaker switching box ? That may be the safest and cheapest method short of changing speakers or amp.

grim

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Re:question ?
Aug 1, 2005 9:57AM PDT

I don?t have an impedance switch on the back of my amp and the I added registers by wiring them each on the positive phase of the wire that connects to the speaker and the metal end of the register I connected to the speaker.
I don?t know what is impedance leveling circuitry and multizone speaker switching box, can you explain please?

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speaker switching boxes...
Aug 3, 2005 10:57PM PDT

are units with multiple speaker outputs that allow you to hook up...lets say 4 sets of speakers to a 1 or 2 set-speaker amp. This allows for multiroom speaker zones which is not important here in your case. What is important is that these units come with impedence protection circuits built in so all those combined speakers (or speakers with weird ohm loads) don't end up burning out your amp. When I sold a/v I saw more than one teenager insisting on hooking up power hungry 4 ohm car subs to their home stereos only to wonder why the home amp failed. My demo board had 5 subs hooked up to a 2 speaaker technics home amp and I could run them all at once if I turned on the impedence protection in the Sima ssw-5 we used.

I did a quick google and came up with this link...

http://www.evaluezone.com/ssw-4.html

I hope it helps...one thing. When you turn on the circuit to level out the impedence you may notice some volume drop in your speakers but this can only be solved by getting a amp more suited for your speakers. Another question here. Does your Marantz have line level outputs for hooking up additional amplifiers? If so, then anotherr thing you could do is to get a couple in line amps that handle a 4 ohm speaker and just use your marantz as a signal processing pre-amp.

Good Luck

grim

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speaker switching boxes...
Aug 4, 2005 12:19AM PDT

Thanks but they don?t ship to my country, I will try finding it in another shop.

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try this..
Aug 4, 2005 12:37AM PDT