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Marantz AV8801 Preamp/Processor Official Owner's thread - Page 255

post #7621 of 11280
I personally think most electronics ought to come with a fan or two, like a top mounted fan expelling the heat outward. If anyone knows that "burnt electronics" smell, when it happens it can ruin or diminish the quality of the gear you just paid thousands for. So for 10-40 dollars you can really cut down on heat and potential failure over time.
post #7622 of 11280
Quote:
Originally Posted by comfynumb View Post

I personally think most electronics ought to come with a fan or two, like a top mounted fan expelling the heat outward. If anyone knows that "burnt electronics" smell, when it happens it can ruin or diminish the quality of the gear you just paid thousands for. So for 10-40 dollars you can really cut down on heat and potential failure over time.

One of my criteria for selecting electronic gear in my HT is to avoid a fan if I can: based on some experience with poorly designed implementation of fans: it seems many designers ignore good thermal design and slap a noisy fan on at the last minute before product release: example: Lexicon LX5 amp: this amp has a fan that is speed controlled: but when you crank the volume, the fan speed cranks up so loud that it can be heard over the music

I appreciate the importance of good thermal design and use of fans for forced air cooling (that is my business: cooling of high power electronics) but it has to be done properly

My 8801 is mounted near the top of a MA Slim 5 rack: it is one of the older racks before MA redesigned their line to improve ventilation and cooling: I punched large holes in the top of the rack using a portable punch to improve air circulation and use a USB powered fan (as suggested earlier in this thread) and the 8801 seems to run relatively cool
post #7623 of 11280
Quote:
Originally Posted by markrubin View Post

One of my criteria for selecting electronic gear in my HT is to avoid a fan if I can: based on some experience with poorly designed implementation of fans: it seems many designers ignore good thermal design and slap a noisy fan on at the last minute before product release: example: Lexicon LX5 amp: this amp has a fan that is speed controlled: but when you crank the volume, the fan speed cranks up so loud that it can be heard over the music.I appreciate the importance of good thermal design and use of fans for forced air cooling (that is my business: cooling of high power electronics) but it has to be done properly. My 8801 is mounted near the top of a MA Slim 5 rack: it is one of the older racks before MA redesigned their line to improve ventilation and cooling: I punched large holes in the top of the rack using a portable punch to improve air circulation and use a USB powered fan (as suggested earlier in this thread) and the 8801 seems to run relatively cool

The new CLASSE amps have ICE cooling fans nearly audible and keep the CA-M600 cool smile.gif. If well design you can't hear the fans
post #7624 of 11280
Quote:
Originally Posted by jima4a View Post

The 5508 / 80.2 are quite known for the HDMI failure. This is the first I have noted for the 5509 or 80.3.
I've had my 80.3 since around when they first came out and so far knock on wood it performs flawlessly I also use it everyday .
post #7625 of 11280
Quote:
Originally Posted by RichB View Post

Ouch. Not good.
The Onkyo's should not fail. Do you have a closed cabinet or tight space?
It is always good for electronics to make sure they stay reasonably cool.
I have a fan blowing across my 8801 blue because it gets hot.

- Rich
They were mounted on the top shelf of my Bell'Oggetti Alto Zeta AR-880 audio rack, which has perforated holes under the base of each ledge with adequate ventilation. I personally believe all the Onkyo PR-SC5509 or DHC-80.3 HDMI boards may eventually fail due to a design flaw or component problem. After the first 5509 pre-amp failed completely with no picture display, I replaced all my Monoprice brand silver plated 1.4a HDMI cables with the Monster Cable M-series brand and swapped out the Blu-ray player for an Oppo BDP-103 model. I also had Bright House Cable replace the DVR box thinking that may have caused the problem but the second 5509 unit failed within a week displaying the same green color jagged lines on start-up and magenta color monochrome picture display problems. Both of these Onkyo pre-amps were brand new factory-sealed units and not B-stock or refurbished items. Fortunately, the place where they were purchased paid for the return shipping each time and gave me full credit for the Marantz AV8801 upgrade.
post #7626 of 11280
Quote:
Originally Posted by #zero View Post

They were mounted on the top shelf of my Bell'Oggetti Alto Zeta AR-880 audio rack, which has perforated holes under the base of each ledge with adequate ventilation. I personally believe all the Onkyo PR-SC5509 or DHC-80.3 HDMI boards may eventually fail due to a design flaw or component problem. After the first 5509 pre-amp failed completely with no picture display, I replaced all my Monoprice brand silver plated 1.4a HDMI cables with the Monster Cable M-series brand and swapped out the Blu-ray player for an Oppo BDP-103 model. I also had Bright House Cable replace the DVR box thinking that may have caused the problem but the second 5509 unit failed within a week displaying the same green color jagged lines on start-up and magenta color monochrome picture display problems. Both of these Onkyo pre-amps were brand new factory-sealed units and not B-stock or refurbished items. Fortunately, the place where they were purchased paid for the return shipping each time and gave me full credit for the Marantz AV8801 upgrade.
I think most failures no matter what brand if there going to have issues it's "normally" early on . Also as mentioned previously especially if a certain model tends to run hot proper cooling and ventilation is vital . With my DHC 80.3 it's in a well ventilated Salamander audio stand and I have a 3 fan cooling rack sitting on top and it barely gets warm . Without it on it gets considerably warmer almost to the point of being hot .The 80.3 has been a flawless Performer .
post #7627 of 11280
Quote:
Originally Posted by TheFactor View Post

I think most failures no matter what brand if there going to have issues it's "normally" early on . Also as mentioned previously especially if a certain model tends to run hot proper cooling and ventilation is vital . With my DHC 80.3 it's in a well ventilated Salamander audio stand and I have a 3 fan cooling rack sitting on top and it barely gets warm . Without it on it gets considerably warmer almost to the point of being hot .The 80.3 has been a flawless Performer .
Both of the Onkyo PR-SC5509 pre-amps were just warm to the touch near the ventilation holes over the HDMI mainboard area and nowhere near as hot as my Denon AVP-5805Ci that had a built in cooling fan. If heat buildup was the issue they should have installed some heat sinks over the video processor components or installed an internal cooling fan like the Denon unit. Also the Onkyo’s technical support line was not much help in the situation just having me perform a system reset and just checking the HDMI connections before telling me to return the unit to the place of purchase. They would not tell me if they were having issues with this particular model but they were just more concerned if the unit was purchased from an authorized retailer.
post #7628 of 11280
Sorry to hear that it sounds like you've had a bad experience with Onkyo . To the contrary with myself and other owners I know of with the Integra DHC 80.2 &80.3
post #7629 of 11280
I have an Onkyo 805 and the HDMI board burned twice!
post #7630 of 11280
You guys should off bought the Integra there flagship model tongue.gifwink.gifbiggrin.gif
post #7631 of 11280
From my understanding it appears as if Onkyo has had quite a few problems with their HDMI boards failing because of inferior capacitors. Maybe the Integra line uses better quality components inside but they appear to have the same pc boards. I was considering the Integra 80.3 but just didn't like the front faceplate appearance with all the exposed buttons. I also consider the Yamaha CX-A5000 pre-amp but soon found out it does not have any XLR connections for the subwoofers and it use an YPAO correction system instead of the more preferred Audyssey XT32. Also the plastic front face plate and internal layout of the CX-A5000 doesn't seem to be as attractive or well thought out as the Marantz AV8801 unit.
post #7632 of 11280
Onkyo/Integra has had a little time off and I think they will make a nice comeback , as the market has changed a bit and they most likely care about their rep and the only way to get it back is to make a better product wink.gif
post #7633 of 11280
Quote:
Originally Posted by TheFactor View Post

You guys should off bought the Integra there flagship model tongue.gifwink.gifbiggrin.gif

And away we go. biggrin.gif
post #7634 of 11280
Quote:
Originally Posted by audiofan1 View Post

Onkyo/Integra has had a little time off and I think they will make a nice comeback , as the market has changed a bit and they most likely care about their rep and the only way to get it back is to make a better product wink.gif

You talking about the company that limited the 5510 to the European market.
It took them more than a year, to decide to sell some by making them available here.

Personally, I was off-put smile.gif

- Rich
post #7635 of 11280
Quote:
Originally Posted by Waboman View Post

And away we go. biggrin.gif
Who me ? tongue.gifbiggrin.gif
post #7636 of 11280
Regarding cooling fans to use with the 8801:

I have read most of this thread, and, there seems to be several methods 8801 owners have used to cool their units. Is there a consensus on the most effective cooling device? I like the Antec unit that sits on top to draw heat away; I really don't want to cut holes in my cabinet to move air in/out.

Also, is it best to power the device via the 8801's USB, or, should I be using 110v? It would be nice if I could have the USB power the fan on/off along with my 8801.
post #7637 of 11280
Quote:
Originally Posted by audiofan1 View Post

Onkyo/Integra has had a little time off and I think they will make a nice comeback , as the market has changed a bit and they most likely care about their rep and the only way to get it back is to make a better product wink.gif

Let's hope so, I heard not to expect any thing new for CEDIA frown.gif
post #7638 of 11280
Quote:
Originally Posted by jdlynch View Post

Regarding cooling fans to use with the 8801:

I have read most of this thread, and, there seems to be several methods 8801 owners have used to cool their units. Is there a consensus on the most effective cooling device? I like the Antec unit that sits on top to draw heat away; I really don't want to cut holes in my cabinet to move air in/out.

Also, is it best to power the device via the 8801's USB, or, should I be using 110v? It would be nice if I could have the USB power the fan on/off along with my 8801.

I used a fan Gelid fan that blows over from the back to the front.
You could also use a fan to draw air from the unit as well.

Most fans are DC you can use any computer fan that can be driven at 5 volts.
I wired a USB to fan connecter to allow any PC fan.

The rear USB port can be set to automatically power on only when the unit is on but you must turn off the ethernet hub when not in use and select the Rear port. I did not neet the Marantz hub so this is not a problem for me.

There are USB fans but they tend to want to move a lot of air and therefore make noise.
Check Coolerguys site for options.

- Rich
post #7639 of 11280
Quote:
Originally Posted by RichB View Post

Most fans are DC you can use any computer fan that can be driven at 5 volts.
I wired a USB to fan connecter to allow any PC fan.

For my Denon I use two 18cm Silverstone AP181 fans connected in parallel to the rear USB port with a USB fan adapter. They lie flat on the top surface above the HDMI card and work as exhaust fans. Very quiet when undervolted to 5V, still move a lot of air and together draw under 0.9A.
post #7640 of 11280
Quote:
Originally Posted by jdlynch View Post

Regarding cooling fans to use with the 8801:

I have read most of this thread, and, there seems to be several methods 8801 owners have used to cool their units. Is there a consensus on the most effective cooling device? I like the Antec unit that sits on top to draw heat away; I really don't want to cut holes in my cabinet to move air in/out.

Also, is it best to power the device via the 8801's USB, or, should I be using 110v? It would be nice if I could have the USB power the fan on/off along with my 8801.

I use the Parasound zBreeze using the 8801 to trigger.
post #7641 of 11280
I use a three fan cooling rack that sets on the top sucking hot air in and blowing it out the back works great but can be noisy sometimes in a quiet environment .
post #7642 of 11280
Quote:
Originally Posted by pinoiski View Post

I use the Parasound zBreeze using the 8801 to trigger.

AudioAdvisor had a 1/2 price close-out on the Z-Breeze a few weeks ago; by the time I found out they were sold out frown.gif
post #7643 of 11280
I ordered this cooling fan. I wanted something trigger controlled and couldn't find many options out there.
post #7644 of 11280
Thank you for the responses to my question about Marantz+Mcintosh.
post #7645 of 11280
gentlemen,

ive been using a Pioneer SC-07 with a Krell KAV-3250 amp.. the krell kills the pionner's internal amps and was big upgrade..

speakers are gallo strada 2( which I found to be a huge improvement over strada 1) and Martin Logan Depth I sub

but ive never actually had a dedicated pre/pro before.. is the pioneer that bad? would the marantz be a worthwhile upgrade?
Edited by mspeed76 - 8/13/13 at 10:37pm
post #7646 of 11280
Quote:
Originally Posted by RichB View Post

You talking about the company that limited the 5510 to the European market.
It took them more than a year, to decide to sell some by making them available here.

Personally, I was off-put smile.gif

- Rich

I'm glad they kept it there as long as they did I had a chance to get the 5509 when first released (finally released ) here but glad I didn't, as I would have to sell it and get an 8801 biggrin.gif
post #7647 of 11280
Quote:
Originally Posted by mspeed76 View Post

gentlemen,

ive been using a Pioneer SC-07 with a Krell KAV-3250 amp.. the krell kills the pionner's internal amps and was big upgrade..

speakers are gallo strada 2( which I found to be a huge improvement over strada 1) and Martin Logan Depth I sub

but ive never actually had a dedicated pre/pro before.. is the pioneer that bad? would the marantz be a worthwhile upgrade?

I recently upgraded from an SC-05, I was finding at volumes near reference with the Pio was fatiguing and need to use the X Curve to roll off some of the energy in my room. With the 8801 I am not having any issues and enjoying listening to soundtracks at or near ref. Eg watched the hobbit the other night at 0 and it was excellently balanced never felt the need to adjust the volume. Also find x32t with SubEQ in an improvement over the Pio, as I was already running a ASEQ1 to provide that capability. When I introduced it with the Pio it was improved the sound across the board which you hear from a lot of people when the bass is more controlled. In Oz we pay a lot more for the 8801 then in the US and I still find it a great addition / improvement to my theatre

Oh, also 8801 offers dedicated XLR, support for dual subs, additional HDMI in an out with 3d and 4k support, improved network streaming options, etc over your SC-07
post #7648 of 11280
Quote:
Originally Posted by #zero View Post

From my understanding it appears as if Onkyo has had quite a few problems with their HDMI boards failing because of inferior capacitors. Maybe the Integra line uses better quality components inside but they appear to have the same pc boards. I was considering the Integra 80.3 but just didn't like the front faceplate appearance with all the exposed buttons. I also consider the Yamaha CX-A5000 pre-amp but soon found out it does not have any XLR connections for the subwoofers and it use an YPAO correction system instead of the more preferred Audyssey XT32. Also the plastic front face plate and internal layout of the CX-A5000 doesn't seem to be as attractive or well thought out as the Marantz AV8801 unit.

Soem say that YPAO does a better job in the highs and mids - but lacks in the low frequencies - but can be fixed by a sub with build in EQ.
post #7649 of 11280
Can you run standard XLR balanced cables to the sub from the pre/pro or do they Have to be a special XLR sub cable like you do for RCA's ?
post #7650 of 11280
Quote:
Originally Posted by TheFactor View Post

Can you run standard XLR balanced cables to the sub from the pre/pro or do they Have to be a special XLR sub cable like you do for RCA's ?

Yes! standard wink.gif
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