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Marantz AV8801 Preamp/Processor Official Owner's thread - Page 128

post #3811 of 11327
Quote:
Originally Posted by WestCoastD View Post

I set mains to SMALL for most all movie surround, but usually LARGE for multi-channel music (SACD's, DVD-A's, BluRay-A). Although using my one sub (JL Audio F110) isn't bad either (with mains set = SMALL).

This is what I'm trying to get across wink.gif You've got to love getting enjoyment from all your gear and having this much power to deliver an all out assault on the State of the Art (for the moment that is) way to go on the exploreration of your killer setup WestCoastD cool.gifcool.gif
post #3812 of 11327
I listened to my Outlaw 7500 plugged into the wall direct and through my Furman IT Reference 15i (different model than Rich's):

so far I do not discern any difference in sound quality and that is what I expected
post #3813 of 11327
Quote:
Originally Posted by thrang View Post

I use the 15pfi's

Neither of us are EE's, but I read the specs of the furman to provide continuous 11-15 amps, with additional continuous 3 amps reserve, and up to 45 amps peak charge. As a layman, this appears to be sufficient current to charge capacitors in the amp. I use one 15 pfi per McIntosh amp, no other draw.

Nonetheless, there is no sonic degradation with my system.

You Mac amps are likely high class-A biased so the draw is constant.
For example, if they are 10 watts class A, you would have to draw significantly beyond that to see any potential effect.

You would need to go Pure Direct and get to a high DB level to get to A/B mode.
I do not know the bias of the Outlaw but it uses 12 transistors per channel in A/B so I expect its demand is less constant. The Sunfire is very efficient which is achieved by drawing the power as needed.

- Rich
post #3814 of 11327
Quote:
Originally Posted by Bill222 View Post

Hey Rich,

Thanks for trying the Furman. I love them for my systems. My main system uses two Furman Elite 15-PFi's.
..To match your A/B test - what sound mode should I be using? (And how many speakers? Just a pure 2-channel test? Leave the rest of the amps off?) Also - do you have an SACD to recommend for sound quality playback testing? I have a few of those - not many - but a few.

I recommend 2-channel Pure Direct and a fairly high volume (in the 90's) to get the amp drawing current. This makes it easier to identify the sound change.

- Rich
Edited by RichB - 3/12/13 at 6:07am
post #3815 of 11327
Quote:
Originally Posted by markrubin View Post

I listened to my Outlaw 7500 plugged into the wall direct and through my Furman IT Reference 15i (different model than Rich's):

so far I do not discern any difference in sound quality and that is what I expected

That is good to know.
After all, it costs more than the Outlaw tongue.gif

- Rich
post #3816 of 11327
Can the front display illumination be turned off on this unit?
post #3817 of 11327
Quote:
Originally Posted by RichB View Post

You Mac amps are likely high class-A biased so the draw is constant.
For example, if they are 10 watts class A, you would have to draw significantly beyond that to see any potential effect.

You would need to go Pure Direct and get to a high DB level to get to A/B mode.
I do not know the bias of the Outlaw but it uses 12 transistors per channel in A/B so I expect its demand is less constant. The Sunfire is very efficient which is achieved by drawing the power as needed.

- Rich

Ahhh - my Aragaon amps are probably in the same boat as his Mac amps (that is - highly class-A biased).

From an eBay guide to Aragon amps -

http://reviews.ebay.com/Classic-Aragon-Amps-A-primer?ugid=10000000001149810
Quote:
...
The 8000 series uses greater bias for the output transistors leading to higher output (about 26 watts for the 8008BB/8008 Mk II) while still in Class A mode.
...
The two channel 8000 series amps could have one or two power transformers. The 8002 (125 w/p/c/8, 4 output transistors per channel) and the 8008ST (200 w/p/c/8, 8 output transistors per channel) each used a single, dual-wound transformer--a 2000VA unit for the 8008ST. The 8008BB (and the 8008 MK II) used two, 1200VA transformers, double the capacitance in the power supply as the ST, and 12 output transistors per channel.
...

I'm running both 8008BB and 8008 MK II amps - so that's still 12 transistors per channel, but I'm in class A up until around 26 watts - maybe slightly off from that since I'm not sure what level the repair shop re-biased the amps at when they needed repairs.

SO I have to go significantly beyond 26 watts per channel to notice Furman-induced sound degradation with these amps? I may go more deaf than I already am....
post #3818 of 11327
Quote:
Originally Posted by egrady View Post

Can the front display illumination be turned off on this unit?

I just went to mine and turned the display off, but the blue ring around the porthole stayed on. Not sure if that turns off with time or another setting.
post #3819 of 11327
Quote:
Originally Posted by hifiaudio2 View Post

I just went to mine and turned the display off, but the blue ring around the porthole stayed on. Not sure if that turns off with time or another setting.

I do not believe that ever turns off when the power is on.
It does not turn off in Pure Direct mode either.

It does not bother me at all, it is not all that bright.
Light-dims could be used if you are good a cutting circles.

- Rich
post #3820 of 11327
Quote:
Originally Posted by Bill222 View Post@WSE - I'm the one who recently mentioned living in Florida. Central Florida. Home of the regularly scheduled thunderstorms. And the irregularly scheduled power fluctuations and (usually) short blackouts. The strange thing is - most of those power fluctuations (the ones bad enough to make my UPS systems chirp and complain) - they happen when there's not a cloud in the sky!

 

Interesting, how can that be electrical storms!

post #3821 of 11327
Quote:
Originally Posted by wse View Post

Interesting, how can that be electrical storms!
They aren't. They're simply old/bad equipment failing. Animals eating into power lines, trees falling, transformers just giving up and going "boom" (I've heard at least 3 of those transformer explosions from my house in the past few years).
post #3822 of 11327
Quote:
Originally Posted by audiofan1 View Post

Best advice hear for yourself!

Not so easy. I can hear it in a showroom but we all know this is not the same thing. I should keep it a week or so in my house, with my amps, speakers, electronics and do some roomeq.
Ths is why i was asking if someone had the oppurtunty to hea/ownr both Denon AVP-1HD and Marantz AV8801 and give a first hand opinion.
post #3823 of 11327
Quote:
Originally Posted by locutus2k View Post

Not so easy. I can hear it in a showroom but we all know this is not the same thing. I should keep it a week or so in my house, with my amps, speakers, electronics and do some roomeq.
Ths is why i was asking if someone had the oppurtunty to hea/ownr both Denon AVP-1HD and Marantz AV8801 and give a first hand opinion.

I've owned both, but separated by a couple of years, and the A1 did not have the upgrade, so tough for me to comment...But I would not go back to the A1 I owned from the 8801
post #3824 of 11327
Quote:
Originally Posted by Bill222 View Post

Ahhh - my Aragaon amps are probably in the same boat as his Mac amps (that is - highly class-A biased).

From an eBay guide to Aragon amps -

http://reviews.ebay.com/Classic-Aragon-Amps-A-primer?ugid=10000000001149810
I'm running both 8008BB and 8008 MK II amps - so that's still 12 transistors per channel, but I'm in class A up until around 26 watts - maybe slightly off from that since I'm not sure what level the repair shop re-biased the amps at when they needed repairs.

SO I have to go significantly beyond 26 watts per channel to notice Furman-induced sound degradation with these amps? I may go more deaf than I already am....

Sounds correct.

I have decided not to put this Furman Elite15 PF:


In front of this Outlaw 7500:



Because it dramatically reduces the sound quality.

For other components, I understand the desire to protect your components.
The Outlaw has no gauges. It is just an amp and it is a tank.
A great sounding tank smile.gif

- Rich
post #3825 of 11327
Quote:
Originally Posted by hifiaudio2 View Post

I just went to mine and turned the display off, but the blue ring around the porthole stayed on. Not sure if that turns off with time or another setting.
Quote:
Originally Posted by RichB View Post

I do not believe that ever turns off when the power is on.
It does not turn off in Pure Direct mode either.

It does not bother me at all, it is not all that bright.
Light-dims could be used if you are good a cutting circles.

- Rich

You can.

It's in the manual.

Open the flap, press and hold "Display" button until the blue light turns off.
post #3826 of 11327
Quote:
Originally Posted by Woof Woof View Post


You can.

It's in the manual.

Open the flap, press and hold "Display" button until the blue light turns off.

Nice. It works and it is remembered on power cycle.
I did it again to turn it back on. I missed it smile.gif

- Rich
post #3827 of 11327
Quote:
Originally Posted by RichB View Post


Sounds correct.

I have decided not to put this Furman Elite15 PF:


In front of this Outlaw 7500:



Because it dramatically reduces the sound quality.

For other components, I understand the desire to protect your components.
The Outlaw has no gauges. It is just an amp and it is a tank.
A great sounding tank smile.gif

- Rich

I hear you, I somewhat feel the same, now I just have to find a four outlet 20amp so I can replace the two

post #3828 of 11327
Quote:
Originally Posted by thrang View Post

I've owned both, but separated by a couple of years, and the A1 did not have the upgrade, so tough for me to comment...But I would not go back to the A1 I owned from the 8801

I just had my A1 replaced with av8801, but to be short, I think av8801 sounds more detailed and neutral to my ears
A1 blends in the sound more or harmonic if you put, but I like detailed sound, again at least to my ears
post #3829 of 11327
Quote:
Originally Posted by wse View Post

I hear you, I somewhat feel the same, now I just have to find a four outlet 20amp so I can replace the two

I happened to have an 15 amp circuit in the neighborhood so I used it for my other components.
I may still have my electrician come by and run another 20 amp to the box.

You can get doubled up breakers if you need space on your box.
That may be cheaper than multiple line conditioners.

- Rich
post #3830 of 11327
Quote:
Originally Posted by RichB View PostI happened to have an 15 amp circuit in the neighborhood so I used it for my other components.
I may still have my electrician come by and run another 20 amp to the box.

You can get doubled up breakers if you need space on your box. That may be cheaper than multiple line conditioners.- Rich

Agreed I found what I was looking for http://www.grainger.com/Grainger/HUBBELL-WIRING-DEVICEKELLEMS-4-Plex-Receptacle-6C567

post #3831 of 11327
Quote:
Originally Posted by Bill222 View Post

I'm the one who recently mentioned living in Florida. Central Florida. Home of the regularly scheduled thunderstorms. And the irregularly scheduled power fluctuations and (usually) short blackouts. The strange thing is - most of those power fluctuations (the ones bad enough to make my UPS systems chirp and complain) - they happen when there's not a cloud in the sky!
you should probably fix a safety-net under your house for those "sink-holes" as well smile.gif
post #3832 of 11327
Well, not using a line conditioner means this is what you've got:



Okay, I couldn't resist, sorry....
post #3833 of 11327
Here is a leviton plug at Amazon that goes into your current receptacle.

EDIT: Here is the Leviton 20 amp plug.



Best Regards,

Rich
Edited by RichB - 3/12/13 at 1:25pm
post #3834 of 11327
Quote:
Originally Posted by audiofan1 View Post

This is what I'm trying to get across wink.gif You've got to love getting enjoyment from all your gear and having this much power to deliver an all out assault on the State of the Art (for the moment that is) way to go on the exploreration of your killer setup WestCoastD cool.gifcool.gif
yeah, I'm trying to extract total enjoyment. The JL Audio F110 sub's (for a single 10 inch) exude's beautiful, articulate, bass. My room is 11 X 11 X 8.

By the way, that Ken Kreisel sub looks intriguing, never heard of that brand.
http://www.hometheaterhifi.com/subwoofers/subwoofers-reviews/ken-kreisel-dxd-12012-dual-12-push-pull-subwoofer.html
post #3835 of 11327
Quote:
Originally Posted by thrang View Post

Well, not using a line conditioner means this is what you've got:



Okay, I couldn't resist, sorry....

Fair enough.
But you need the fantasy cover to go with it:



Then we can have the same functionality. tongue.gif

Seriously, I already have one of these:

http://www.sportsimportsltd.com/whhosusupr.html?utm_source=whhosusupr&utm_medium=shopping%2Bengine&utm_campaign=googleproducts&gclid=CO_O4oiD-LUCFQZV4AodqmMANw

Copyright Yahoo! Inc

- Rich
Edited by RichB - 3/12/13 at 1:34pm
post #3836 of 11327
Quote:
Originally Posted by RichB View Post

I have decided not to put this Furman Elite15 PF, in front of this Outlaw 7500, because it dramatically reduces the sound quality. For other components, I understand the desire to protect your components
it is somewhat startling seeing one of these popular Furman PF-15i unit's "un-clothed", much less inside than I imagined (in bulk) smile.gif I assumed it would employ a much larger coil?
post #3837 of 11327
Quote:
Originally Posted by WestCoastD View Post

it is somewhat startling seeing one of these popular Furman PF-15i unit's "un-clothed", much less inside than I imagined (in bulk) smile.gif I assumed it would employ a much larger coil?

... but it hums like the big boys smile.gif

- Rich
post #3838 of 11327




First time I ever heard a "plug" for a plug Rich.
post #3839 of 11327
Quote:
Originally Posted by RichB View Post

... but it hums like the big boys smile.gif
I've been happy with overall performance using a Furman Elite PF-15i in my system (including a Parasound Halo A51, AV8801, JL Audio F110, Oppo BDP-105, Sony SCD-XA5400ES), very dynamic and clean. Although I've never actualy compared direct A/C to Furman.
post #3840 of 11327
Quote:
Originally Posted by comfynumb View Post

First time I ever heard a "plug" for a plug Rich.

Ouch.. smile.gif
Quote:
Originally Posted by WestCoastD View Post

it is somewhat startling seeing one of these popular Furman PF-15i unit's "un-clothed", much less inside than I imagined (in bulk) smile.gif I assumed it would employ a much larger coil?

Those are fine amps with a class-A bias.
Might be worth a try but you will have to crank them.

- Rich
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