minn_male42 Posted November 10, 2004 Share Posted November 10, 2004 ---------------- On 11/10/2004 11:02:33 AM doudou wrote: be carreful with the fans: you know it make some noise, but it also create some magnetical noise, and if your amp is to close or if some cable are too close it can bring some strange noises to your system. ---------------- if the receiver and/or amplifier is made properly, there should not be any interference caused by fan motors.... AC or DC.... i've used many different fans over the years with different amps and receivers and i have never had any electrical noise added to my systems..... Quote Link to comment Share on other sites More sharing options...
minn_male42 Posted November 10, 2004 Share Posted November 10, 2004 ---------------- On 11/10/2004 11:13:54 AM chris98007 wrote: i would say that putting my hand on the top it is very hot. I am assuming the noise you might get from the fan would be in the Speaker lines? maybe a hum or something like that? I will try a fan blowing out of the rear, any size i should look for? ---------------- a large fan will move more air...... the following one is a good example that would work well... 4 - 5/8" square.... 12 vdc... http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=259-121 Quote Link to comment Share on other sites More sharing options...
chris98007 Posted November 10, 2004 Author Share Posted November 10, 2004 that is a nice fan, though the decibles seem high on it? Quote Link to comment Share on other sites More sharing options...
minn_male42 Posted November 10, 2004 Share Posted November 10, 2004 ---------------- On 11/10/2004 11:44:55 AM chris98007 wrote: that is a nice fan, though the decibles seem high on it? ---------------- the db rating is at a full 12 volts..... when you lower the voltage (9 or 6 volts for example), you will lower the db rating dramatically..... Quote Link to comment Share on other sites More sharing options...
ygmn Posted November 10, 2004 Share Posted November 10, 2004 why not just cut your holes first and try it...before going the next step of adding a fan.... since you stated the components were in a basically sealed chamber...the air holes would let it breath.... SO cut one at top to vent hot air....and one at bottom to draw in cool air I bet just a few holes would be enough Quote Link to comment Share on other sites More sharing options...
packattack Posted November 10, 2004 Share Posted November 10, 2004 Chris the onkyo 800 runs warm I have one and so does the moderator on one of the other forums secrets of home theater hi fidelity and he told me to change the speakers set up to 4 ohms and that will help the receiver not run as hot. I did it and it isn't as hot. pack Quote Link to comment Share on other sites More sharing options...
chris98007 Posted November 11, 2004 Author Share Posted November 11, 2004 Interesting, so changing from 6 to 4 should lower the amount of work it is doing so not as much heat. Very good tip, i will do that ASAP. By the way how do you like the 800 and onkyo as a whole? Quote Link to comment Share on other sites More sharing options...
Joe Shmoe Posted November 11, 2004 Share Posted November 11, 2004 Or, just build your own cabinet with shelves that have ball bearing sliders. Then if still too hot just slide out the shelf. Quote Link to comment Share on other sites More sharing options...
packattack Posted November 11, 2004 Share Posted November 11, 2004 I like it it seems to do the job I have a five channel rotel that I got from a forum member(damon payne) the rotel runs the front and the onkyo runs the surrounds, Quote Link to comment Share on other sites More sharing options...
doudou Posted November 12, 2004 Share Posted November 12, 2004 ---------------- On 11/10/2004 11:13:54 AM chris98007 wrote: i would say that putting my hand on the top it is very hot. I am assuming the noise you might get from the fan would be in the Speaker lines? maybe a hum or something like that? I will try a fan blowing out of the rear, any size i should look for? ---------------- exactly before buying anything to make tests with fan, i think you should really try to find a way to make breath your amp without fan.it will be cheaper, and you will have no problem. remove all parts of the cabinet around your amp which isn t needed. if you have a space of around 2 inch around your amp and nothing behind that could avoid the air to cool the amp it should be enough to listen t your system at medium level.if you want some very high level the space around the amp should be larger. i m thinking of a test you can make: place your amp outside the cabinet without nothing around and listen to some music and see if it get hot. if your amp is as hot as in the cabinet there is may be something wrong. as i said an amp is made to work as it is built if you use it on normal conditions. i think you don t listen your system at the maximum tha amp can provide so with this test, if you cannot leave your and on the amp for some seconds, your amp have a problem. Quote Link to comment Share on other sites More sharing options...
doudou Posted November 12, 2004 Share Posted November 12, 2004 ---------------- On 11/10/2004 11:31:33 AM minn_male42 wrote: if the receiver and/or amplifier is made properly, there should not be any interference caused by fan motors.... AC or DC.... i've used many different fans over the years with different amps and receivers and i have never had any electrical noise added to my systems..... http://forums.klipsch.com/idealbb/images/smilies/1.gif"> ---------------- your right: the amp are made to be the less sensitiv to the external interferences. but all the wires that goes into your amp are very sensitive if they are too close to an motor or something else.it act like an antena. the most sensitiv to these interference are the analog connection and especially the cables that come from a turnable. Quote Link to comment Share on other sites More sharing options...
doudou Posted November 12, 2004 Share Posted November 12, 2004 ---------------- On 11/10/2004 2:32:26 PM ygmn wrote: why not just cut your holes first and try it...before going the next step of adding a fan.... since you stated the components were in a basically sealed chamber...the air holes would let it breath.... SO cut one at top to vent hot air....and one at bottom to draw in cool air I bet just a few holes would be enough ---------------- i totaly agree with you. i really it worth trying before buying anything. Quote Link to comment Share on other sites More sharing options...
chris98007 Posted November 12, 2004 Author Share Posted November 12, 2004 Well i bought two fans and a adjustable dc connection. One fan blows in the other blows out. they are 80mm fans that are sitting at the back of the cabinet. I will run some test tonight with the fans off and with them on to see if it makes a difference and let you guys know. Quote Link to comment Share on other sites More sharing options...
JJkizak Posted November 12, 2004 Share Posted November 12, 2004 When you crank that baby up you won't hear any fan noise even if there is. JJK Quote Link to comment Share on other sites More sharing options...
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