Home Theater Forum and Systems banner
1 - 20 of 22 Posts

·
Registered
Joined
·
195 Posts
Discussion Starter · #1 ·
On the back of receivers there is a 12volt trigger jack . I would like for someone to please help me . I have not seen what the plug looks like to buy one. I do not want to try the wrong one and burn my stuff up- especially when I just bought a new receiver. I saw at RadioShack, they had a six inch fan that was 12volt. With this fan already being 12 volt, I do not need anything else in the chain but plug-wire-fan, do I?
 

·
Premium Member
Joined
·
15,054 Posts
The 12v trigger does not have enough amperage to power a fan of any size so you would be better off using the switched plugin with a 12vDC wallWart to power the fan.
The 3.5mm plug you need to use the trigger is this one here
 

·
Premium Member
Joined
·
8,112 Posts

·
Premium Member
Joined
·
15,054 Posts
This one from monoprice would work just fine.
 

·
Registered
Joined
·
195 Posts
Discussion Starter · #6 ·
To Tony db, I see by your equipment list you have an Onkyo 805.two days ago I saw an ad for the 806 used. I drove to Arlington and it looked like brand new, for $250. Now I am reconfiguring my cabinet, where I will have 4" above my tv, and put my equipment shelf above there. ThenI will have 16" space above that to put the7.5" Onkyo 806, that is 7.5" tall. That ought to give it plenty of room to breath. I wonder if I would still be best off to put a cooling fan behind it? Also, if that is the case, which way would be most effective. Should I push the airflow from back of cabinet to the front of the opening, or pull it out the rear of the cabinet? I imagine that it puts out the same heat value that my 705 did? Enlighten me please...:huh:
 

·
Premium Member
Joined
·
15,054 Posts
Yup, the 806 will get warm so good airflow is a must. I would pull the warm air out the back that should pull cool air from the front.
Thats a great deal for $250 its slightly less powerfull than the 805 is but still one of the best receivers ever made for the price.
 

·
Registered
Joined
·
195 Posts
Discussion Starter · #8 ·
What is the power rating on yours and mine? I didn't get a manual with it, that was the only thing missing. I tried to locate a downloadable version off the Internet at Onkyo's website, but it was not available.
 

·
Premium Member
Joined
·
15,054 Posts
Well the 805 was bench tested to do 173watts Two channels driven and better than 110watts all channels driven into 8ohms and to this day has yet to be surpassed by any receiver costing under $2000. The 806 dropped the size of the power supply by a bit so lost some of its Oomph but still respectable at about 100watts per channel all channels driven.
 

·
Registered
Joined
·
195 Posts
Discussion Starter · #10 ·
Well that is still a improvement from my 705 that this one is replacing. From what I remember, it delivered 85 watts per channel, with all channels driven.
 

·
Premium Member
Joined
·
15,054 Posts
Yes, your correct. The 806 also has a better video processor and an extra HDMI input than the 805/705 dose.
 

·
Premium Member
Joined
·
5,817 Posts
Well that is still a improvement from my 705 that this one is replacing. From what I remember, it delivered 85 watts per channel, with all channels driven.
The only problem with AV receivers is they usually rate power with all channels driven at 1 frequency instead of 20-20k. I don't know how they can get away with that. It should be all channels 20-20k just like stereo is!
 

·
Premium Member
Joined
·
15,054 Posts
The only problem with AV receivers is they usually rate power with all channels driven at 1 frequency instead of 20-20k. I don't know how they can get away with that. It should be all channels 20-20k just like stereo is!
In the bench tests mentioned above it was done 20-20K These are rigorous third part tests that do them correctly. But your correct the readings on the manufacturers specifications are using a 1K test so very unrealistic but because they are allowed to use that test they will of course post those results rather then real numbers.
 

·
Registered
Joined
·
876 Posts
Where can you buy the 12 volt wall wart plug?
I see those by the dozen at goodwill all week long. Perhaps you have one lying around your house that you no longer need. Just look at the specs and see if it is 12v and can supply 1000ma or more. Just cut the wire to remove the tip, then solder the fan leads to the cable coming from the AC adapter. Tape the soldered connections individually so it doesn't short.
 

·
Registered
Joined
·
195 Posts
Discussion Starter · #15 ·
I did think of the wallwort plug when I was at the house, everything I could find was under 9 volts which was par for the course . I'm at work in Houston till Thursday and right next door to the hotel is a goodwill store. I'll run over there and check it out. Wouldn't bestbuy or RadioShack sell that type of thing too?
 

·
Premium Member
Joined
·
15,054 Posts
Yes, you should be able to get them at those places as well but be prepared to pay a premium for it.
 

·
Registered
Joined
·
876 Posts
Best Buy & Radio Shack do sell them but you will pay $15-20 for one. Alternativly, an AT desktop PC power supply will also do the job since it outputs 3 voltages- 3.3v, 5v, & 12v
 

·
Registered
Joined
·
195 Posts
Discussion Starter · #18 ·
I went to Goodwill and bought an adapter. It says it is 120volt .4amp. OUTPUT: 12 volt- 1.25 amp. Will this be usable? Also, can I actually power two fans with this adapter?
 

·
Premium Member
Joined
·
15,054 Posts
1.2 amps should be able to drive two fans but not the bigger ones only the 80mm ones.
 

·
Registered
Joined
·
876 Posts
I went to Goodwill and bought an adapter. It says it is 120volt .4amp. OUTPUT: 12 volt- 1.25 amp. Will this be usable? Also, can I actually power two fans with this adapter?
That might be enough for just one fan and no more. What fan brand & model # are you trying to run?
 
1 - 20 of 22 Posts
Top