Anyone Using AC Infinity to Cool their AVR? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 216 Old 10-06-2016, 12:47 PM - Thread Starter
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Anyone Using AC Infinity to Cool their AVR?

Is anyone using AC Infinity set top units to cool their AVR? Seems like a relatively new product with no reviews on YouTube. http://www.acinfinity.com/receiver-amp-cooling-fans/
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post #2 of 216 Old 10-06-2016, 02:11 PM
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Interesting product as many systems need air cooling. If your equipment is breathing well, no need to worry.

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post #3 of 216 Old 10-06-2016, 02:20 PM
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Yes I have 3 of them along with 6 dual acinfinity cabinet fans. Very good quality for 100 each. Got them a few weeks ago and I would recommend them to anyone needing good cooling. It can get a little loud if you set temp below 100 though. I am not affiliated with acinfinity.
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post #4 of 216 Old 10-06-2016, 02:36 PM
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Great product! I bought one a couple of months ago to cool my Parasound Halo A51 amplifier. My amp rarely ever rises above 90 degrees F. Before the AC Infinity, I measured temps above 125 degrees F.
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post #5 of 216 Old 10-06-2016, 05:59 PM
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125 degrees inside or outside? Some amps use the case as a heatsink, so if it's hot to the touch, could just mean the case is doing it's job
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post #6 of 216 Old 12-27-2016, 10:52 AM
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They look nice on top on a Marantz. Looking to pick up the T8 or T9.
Any advantages to exhausting to the top or rear?

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post #7 of 216 Old 01-21-2017, 04:21 PM
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I decided to pick up two T8's. Nice units. Easily programmable.
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post #8 of 216 Old 01-21-2017, 04:26 PM
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I use there little stand alone 80-120mm fans bought from amazon, they can be loud if turned on high...but they are all well made, robust...have been using over a year...you can daisy chain them together

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post #9 of 216 Old 01-22-2017, 01:32 AM
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I use 2 corsair sp120 quiet editions on my denon avr x1100. To power them I got a 12v DC power adapter, cut it, and connected the wires to the 4pin molex connectors. Then use molex connectors to daisy-chain them. Works great because of the high static pressure the fans are capable of. It doesn't look nice but works well and running at around 1200rpm it's fairly quiet.

I've also modified some USB cables to power my faster RPM fans at 5v. Just have to make sure the wall plug for the usb cable has enough amps.
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post #10 of 216 Old 01-22-2017, 04:03 AM
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Quote:
Originally Posted by EdQ View Post
They look nice on top on a Marantz. Looking to pick up the T8 or T9.
Any advantages to exhausting to the top or rear?
These are nice looking units. I see you decided to purchase the T8's. When comparing the two, the top exhause unit moves 210 CFM, while the rear exhaust moves 120 CFM. The T8 is also a few dB louder. (Not much) Although I like the idea of the rear pushing air away from the device being cooled, there is a significant difference in the air flow.

Either way, thanks for this link. This is nicer than what I currently use and I think I'll be spending some bucks on one of these and replacing what I use now. (edit: Just ordered one!)

John

Last edited by Guzzi 1; 01-22-2017 at 04:14 AM.
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post #11 of 216 Old 01-22-2017, 08:59 AM
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I chose the rear exhaust because I may set a device on top. Plus my cabinet vents to the rear.

Even though the T8 moves a bit less air. Having the fan on the first or second speed setting (there are 6) is sufficient enough to keep both AVR's cool. (below reference level)

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post #12 of 216 Old 01-28-2017, 02:42 AM
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After seeing this thread, I ordered the T9 unit to replace the cooling unit I had on the Onkyo. (The Onkyo now resides in a box, having also been replaced by a Marantz 7011.)

Anyway, nice unit. I like the display. It's nice to see the temp and know what it's doing. My only wish might be a dim mode for the display, rather than just on or off. Happy with it though.

John
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post #13 of 216 Old 01-28-2017, 08:52 AM
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Quote:
Originally Posted by Guzzi 1 View Post
After seeing this thread, I ordered the T9 unit to replace the cooling unit I had on the Onkyo. (The Onkyo now resides in a box, having also been replaced by a Marantz 7011.)

Anyway, nice unit. I like the display. It's nice to see the temp and know what it's doing. My only wish might be a dim mode for the display, rather than just on or off. Happy with it though.

John
My T8's have 3 settings, your T9 should have them too. Turn the unit to the 'off' mode, then use the up/down buttons.
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post #14 of 216 Old 01-29-2017, 01:55 AM
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That did the trick. Thank you. Evidently I missed that when I looked through the booklet.

John
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post #15 of 216 Old 03-06-2017, 11:31 AM
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Thumbs up Love my T8

This is one of the best investments I have ever made for my AVR setup. I have a Pioneer Elite 47 TX and I use the T8 Aircom and it works great.(The T8 Vents out the rear, and the T9 Vents out the top) I keep it set at "Smart" mode at 80 degrees and it comes on the 2nd or 3rd speed setting and vents the hot air out the back of my Ent. Center. They do make slight noise but its minimal. I also have a Yamaha RX-V1800 I was thinking of getting another for that one. Very impressed and this is great insurance for 100$ (shipping included) I just leave mine on all the time and it kicks on when needed. Even watching movies it barely gets over 86 degrees. Used to easily get over 100 in the cabinet. I would highly recommend if anyone is in the market for receiver cooling systems.
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post #16 of 216 Old 03-06-2017, 06:02 PM
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I too have been completely satisfied with this unit. (T9) The highest I have seen the AVR was 92F. That was with a space heater going and I was really cranking the receiver. Generally low to mid 80's F. It is also a nice looking unit and integrates well with the equipment it is designed to cool. It actually looks like it belongs there! I would recommend this to anyone concerned about cooling.

John
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post #17 of 216 Old 03-13-2017, 04:49 PM
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Marantz Support told me 125* is too hot for my 7010. Don't think I will have that issue.
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post #18 of 216 Old 03-14-2017, 05:28 AM
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Quote:
Originally Posted by JonfromCB View Post
Is anyone using AC Infinity set top units to cool their AVR? Seems like a relatively new product with no reviews on YouTube. http://www.acinfinity.com/receiver-amp-cooling-fans/
Very cool. These will allow for many more placement options. Always tried to keep things off the receiver now that doesn't need to be the case!

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post #19 of 216 Old 03-14-2017, 01:16 PM - Thread Starter
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Quote:
Originally Posted by NickTF View Post
Very cool. These will allow for many more placement options. Always tried to keep things off the receiver now that doesn't need to be the case!
Since starting this thread, I've been using one of these on all three of my AVRs. For decades I never had problems with my separates and integrated amps from the "good old days", but after a heat related failure/$400 repair on my much beloved Onkyo AVR these were a no-brainer answer to a hard lesson learned. I like the newer AVRs, the amps are more efficient, but they make a lot of heat and the chassis and heat sinks weigh about half as much as the old stuff and the sinks look like heavy aluminum foil....they need air.
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post #20 of 216 Old 03-15-2017, 08:08 AM
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I got a better response from Marantz on temps. Will set my T8's accordingly.

125 degree -> Shut down

105 degree -> Change +B Voltage

100 degree -> Fans highly operate TEMPERATURE THRESHOLD

75 degree -> Fans operate
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post #21 of 216 Old 03-17-2017, 08:16 AM
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Quote:
Originally Posted by Guzzi 1 View Post
These are nice looking units. I see you decided to purchase the T8's. When comparing the two, the top exhause unit moves 210 CFM, while the rear exhaust moves 120 CFM. The T8 is also a few dB louder. (Not much) Although I like the idea of the rear pushing air away from the device being cooled, there is a significant difference in the air flow.

Either way, thanks for this link. This is nicer than what I currently use and I think I'll be spending some bucks on one of these and replacing what I use now. (edit: Just ordered one!)

John
I was wondering the same thing. On the rear exhaust T8 we give up 120 CFM and add 3db to the noise. Is this significant? I'll be putting the T8 on top of a Halo A23 and will need to put a small FIOS box on top of the T8. My stand is completely open on the sides/rear/front and after stacking the three I'll still have about 2" clearance on top.

Where is everyone buying their T8s? Edit: I just saw Newegg has them in stock (and I have a $15 coupon).

Last edited by AsahiToro; 03-17-2017 at 08:29 AM.
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post #22 of 216 Old 03-17-2017, 09:27 AM
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The one I bought was straight from AC Infinity. I either googled it or someone had a link here.

John
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post #23 of 216 Old 03-17-2017, 11:40 AM
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Quote:
Originally Posted by Guzzi 1 View Post
The one I bought was straight from AC Infinity. I either googled it or someone had a link here.

John

Amazon has them as well.
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post #24 of 216 Old 03-17-2017, 01:59 PM
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Originally Posted by AsahiToro View Post
I was wondering the same thing. On the rear exhaust T8 we give up 120 CFM and add 3db to the noise. Is this significant? I'll be putting the T8 on top of a Halo A23 and will need to put a small FIOS box on top of the T8. My stand is completely open on the sides/rear/front and after stacking the three I'll still have about 2" clearance on top.

Where is everyone buying their T8s? Edit: I just saw Newegg has them in stock (and I have a $15 coupon).
I don't hear mine at all. It never goes up over two fan speeds. (It has 6)

I bought mine from Amazon.

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Thanks everyone,

Yeah the T8 isn't available on Amazon currently. I picked mine up from Newegg for $84 shipped after my coupon.
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post #26 of 216 Old 03-17-2017, 02:40 PM
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Quote:
Originally Posted by EdQ View Post
I don't hear mine at all. It never goes up over two fan speeds. (It has 6)
Is that the T8 you're talking about?

Thanks.
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post #27 of 216 Old 03-17-2017, 02:41 PM
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Quote:
Originally Posted by AsahiToro View Post
Is that the T8 you're talking about?

Thanks.
Yes

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post #28 of 216 Old 01-27-2018, 11:41 PM
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I just picked up the AC Infinity S10 version (front exhaust) from Amazon to cool a Denon AVR-X4400. This amp runs a lot hotter than the Denon AVR-2310C that it replaced. After 10 minutes or so of use the top cover of the X4400 became hot to touch, indicating much higher temps internally.

The AC Infinity S10 unit is a front exhaust version with 3 fans, claiming 160 cfm at 24 dba. I measured 46db (A weighted), about six feet away from the rack with the fans manually set to full speed. You would definitely notice that.

The good news is that with AVR-X4400 at near reference volumes watching a full ATMOS sound track film (11 channels active), the S10 unit fans did not reach 50% (based on the LED indicator on front panel) and the fan noise was not noticeable in the 10ft x 18ft room. The receiver chassis remained cool to touch, and exhaust air was warm, so it was obvious this unit was doing its job. The fan unit pretty much covers the entire top of the amp, is very low profile (about 1.75"), and is definitely built to take the 30lb top load they indicate in their literature. The S10 has several modes, but I found that "Smart" mode worked well as the fans stayed off when the amp was first turned on, and then gradually ramped fan speed as the amp warmed up.

"SMART MODE - Both the orange and white light will be visible to
indicate if the system is running in SMART Mode. In this mode the fans
will change speed depending on the measured temperature. For every
2° F increment that the temperature is below 88° F, the speed of the
fans will decrease by one level."

The S10 is a quality addition to the equipment rack. I paid full price, and have nothing to do with the company. I do like to speak up though when I find a well built, cost effective product that works as advertised.

Cheers,
Dennis.
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post #29 of 216 Old 01-28-2018, 07:45 AM
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I also just got the T10 and a T8. I too find the T10 to be quite loud. But when you are sending the exhaust to the front(listening area) it's bound to sound louder. But Front exhaust is what I needed in this cabinet. I sit 14' from my avr, if nothing is playing and the fan is running I can hear it slightly at 2/6 speed, and progressively more as it ramps up to 6/6.

If in smart mode or auto you can set the max fan speed to not exceed ex. 3/6. When in the on mode, put the fan speed at 3 if that is where it becomes audible to you at your mlp. When you go back to auto or smart mode it will use that as it's limit for fan speed.

I have mine limited at 3/6 so I really never hear it. I can watch the display to see if it's not keeping up with that fan speed, and you can set the alarm 5 degrees more if your overly worried about that.

I run mine in Smart mode, that way it tries to cool before it hits your target temp where auto kicks on. Mine occasionally turns on speed 1/6 when it gets within 4 degrees of my target. In Auto it would wait till it hit my target max, and then kick on 3 fans until it went back down to target.

I recommend these, I love that I can stack on top of them and fill out my cabinet space. They are a bit noisy but if set right, I think unless you have a true hot box they can go mostly unoticed.

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post #30 of 216 Old 01-28-2018, 08:20 AM
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Love my Ac Infinity's. I have 2 of the MultiFan S7's and have used them on my Marantz since day 1. I have used them in several different ways including all 4 fans blowing up through the bottom, 2 under and 2 on top all blowing into the pre-amp case and 2 under and 2 on top all blowing up. I found that all blowing up with 2 under and 2 on top to offer the best cooling performance. I also never stack components on top of my Marantz even with the fans. The 120mm S7's are very quiet and I would never run my pre-amp/receiver without them again. Heat is the biggest enemy of electronics followed closely by dust and that is the only drawback of running the S7's like I do is the increased dust that tends to build in, on and around the fans and some of that dust of course makes its way inside of the Marantz so part of my monthly dusting includes blowing out the fans and pre-amp inside and out. As I've said I consider the AC Infinity's a must and my unit is only a pre-amp with no internal amps, any receivers would in my mind be even better served. The S7's have rubber feet on both sides that make them perfect for placing in direct contact with gear and will make no noise or do no damage/scratches. The fans are very easy to clean as well and only requires removing a few phillips screws on both sides to get at the fan blades inside. I paid $18.99 per S7 pair christmas 2015 when I purchased my Marantz. I have never had a second thought as they remain quiet and even though they seem to have gone up by $2 I consider them a stellar value that when used effectively and cleaned regularly can only extend my expensive gear's life. Money well spent in my opinion.

https://www.amazon.com/AC-Infinity-M...9DTKYVG1VGAYVT

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