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Anthem MRX Receivers - 300, 500, 700 Owners Thread & Tweaking Guide - Page 480

post #14371 of 16451
Quote:
Originally Posted by David Inskip View Post

After stalking this thread and others like it for some time, I decided to buy an MRX-700 because I needed a reciever to update my Marantz MR6200 (from about 10 years ago) and specifically to see if ARC would make a difference.

I got it home and hooked it up to my speakers (VAF DC-7 fronts and VAF centre and surrounds as well) and ran ARC on my HTPC which finally found a use after sitting dormant for a couple of years. My speakers had never sounded better, very impressed.

I also decided to upgrade my front speakers to DC-X (next size/quality up) and I awaited their arrival so I could try them on my new MRX-700. The speakers arrived, hooked them up, sounded fine, straight to ARC.

Now for some unknown reason, same computer, the USB microphone refused to work. Recognised by Win 7 as Arc-1 microphone, just could not get it to receive a signal. Played around with settings ad nauseam, could not get it to work. Tried reloading windows 7, then windows XP, even tried windows 2000 all to no avail. So plug microphone into desktop PC, much newer computer. Mic recognised, ARC-1, same go, will not work. When you test volume (usually in ease of use/set up mic settings, easiest to test) the mic receives no input. Well actually if you yelled at it loud enough sometimes a flicker of green on the corresponding meter. Had me stumped.

So I plug it into laptop and viola, it works straight away. Oh, well, I'll just get usb to serial adapter and use laptop.

So I purchase http://www.aten.com/products/productItem.php?pcid=20050107104554001&psid=20050117102915002&pid=2005022316346005

The Keyspan adapter recommended on this forum was not readily available and I wanted to get moving.

So I plug adapter into laptop and other end to MRX-700. Mic goes in, shows its getting volume through. Run ARC. Get error that no compatible receiver can be found. Played around with BAUD rates, COM ports (used all info from this thread and there is a fair bit, COM port 1-6 etc etc) to no avail. Figured maybe I needed that keyspan adapter after all. Before I pack up I run the latest firmware update and lo and behold it finds the MRX-700 and runs the update without a problem. WTF??

So I have a USB mic that works when it wants on computers it likes for no discernible reason (even stops working on one after previously working on it quite happily). And a serial adapter that is more than happy to control the MRX-700 for firmware updates but ARC software, no can do.

Now I am not a computer noob, I can build them, I can fix them and I pride myself in being able to pretty much fix any problem I come across. I've played with COM settings, driver settings, volume controls, updated firmwares, software and everything I could think of. Tried multiple USB ports, rebooted, even reinstalled different copies of the same operating system to see if service packs broke drivers etc.When computer software of hardware is this flaky I normally just accept that I have bought a dud and move on. Now that's not possible here as I've outlaid $1200 and there are no viable alternatives in the price range (I purchased it as an used demo from an online auction).

So, any ideas. Hints. Commiserations?

I will be getting Keyspan adapter in a couple of days, just in case that is the magic key that unlocks this cluster#*&@. But until then any help would be appreciated.

My WAF is at an all time low as she says I am yelling and swearing way too much.

Regards

David
David..get the keyspan adapter..that is the magic key..once its setup and you listen for a good month to get use to a sonically correct room..your yelling and frustration will turn to a very very happy camper!
I also had issues without the keyspan..but once I got it everything worked flawlessly...I just had to buy my wife a coach bag,since I got a new toy..
post #14372 of 16451
Quote:
Originally Posted by LVS View Post

^ IMHO the keyspan has the best adapter and drivers out there and they support 2-stop bits which I think the MRX requires. I have used these adapters to communicate with development boards and where this adapter would work reliably the others I tried from Belkin etc, would not. Just my 2-cents.

I am sure the Keyspan is the best adapter. However I did buy a branded adapter that does support 2-stop bits (at least that is there in the settings) so my frustration stems from the finickyness of the Anthem MRX700.
Quote:
Originally Posted by audit13 View Post

I didn't want to take a chance with these usb adapters so I made sure that my thpc's motherboard had a built-in com port.

Furthering my frustration two seperate computers that have serial ports - the usb microphone doesn't work, even though in one of them it did initially?
Quote:
Originally Posted by esh516 View Post

David..get the keyspan adapter..that is the magic key..once its setup and you listen for a good month to get use to a sonically correct room..your yelling and frustration will turn to a very very happy camper!
I also had issues without the keyspan..but once I got it everything worked flawlessly...I just had to buy my wife a coach bag,since I got a new toy..

Never fear, I am getting the keyspan when in comes into stock in Sydney I am told tomorrow.

And as I did have ARC working on a computer at one stage, I can attest that it did a great job adjusting for my room with my old speakers. That's why I am even more frustrated, I know how good it works and I've upgraded speakers that I want to hear sing at their best.

Oh well, couple of days won't kill me.
post #14373 of 16451
Quote:
Originally Posted by David Inskip View Post

Furthering my frustration two seperate computers that have serial ports - the usb microphone doesn't work, even though in one of them it did initially?
That's weird. My mrx and mic were able to communicate with my Win7 htpc without issue from day one. Both were always detected each time I needed to run ARC or update firmware.

Good luck with your keyspan.
post #14374 of 16451
Ok looks like my 2nd MRX 700 was infact defective. The new MRX 300 I just received doesn't make any type of hiss/noise at all like the MRX 700 did. Zilch. When I hook up my new Anthem MCA 30 amp there's a very very faint hiss though. Not enough to bother me.

So from my initial back and forth testing I cannot honestly say I can hear any difference between using the amp and not. Listening was done at -32 db so it was at a moderate - low listening level.

As much as I'd like to say it made any noticeable difference as I just spent $1885 for that MCA 30 amp, I cant.

I haven't tested it at louder levels with more dynamic music/movies though so the jury is still out.
post #14375 of 16451
Quote:
Originally Posted by coresare View Post

Ok looks like my 2nd MRX 700 was infact defective. The new MRX 300 I just received doesn't make any type of hiss/noise at all like the MRX 700 did. Zilch. When I hook up my new Anthem MCA 30 amp there's a very very faint hiss though. Not enough to bother me.

So from my initial back and forth testing I cannot honestly say I can hear any difference between using the amp and not. Listening was done at -32 db so it was at a moderate - low listening level.

As much as I'd like to say it made any noticeable difference as I just spent $1885 for that MCA 30 amp, I cant.

I haven't tested it at louder levels with more dynamic music/movies though so the jury is still out.

Congratulations of getting a "quiet" mrx! Maybe the hiss is being picked up by the interconnects between your mrx and amp?
post #14376 of 16451
Quote:
Originally Posted by audit13 View Post

Congratulations of getting a "quiet" mrx! Maybe the hiss is being picked up by the interconnects between your mrx and amp?
Maybe! I'm using "cheap" Blue Jeans RCA's. On one of the preouts if its not tight there is a lower freq. buzzing sound. I have to wiggle it tighter and it goes away. Not sure if its the cable or the out post. I suppose if one day I can borrow someone's premium RCA cables I can see if it made a difference.

Edit: Turns out the buzzing is from one faulty Blue Jeans RCA ... I guess you really get what you pay for =(.
Edited by coresare - 4/16/13 at 10:55pm
post #14377 of 16451
Quote:
Originally Posted by coresare View Post

Maybe! I'm using "cheap" Blue Jeans RCA's. On one of the preouts if its not tight there is a lower freq. buzzing sound. I have to wiggle it tighter and it goes away. Not sure if its the cable or the out post. I suppose if one day I can borrow someone's premium RCA cables I can see if it made a difference.
Are there any power wires near the RCA cables?
post #14378 of 16451
Quote:
Originally Posted by audit13 View Post

Are there any power wires near the RCA cables?

Nah, just HDMI cables..I'll clean things up tomorrow and recheck.
post #14379 of 16451
Quote:
Originally Posted by David Inskip View Post



Never fear, I am getting the keyspan when in comes into stock in Sydney I am told tomorrow.

Have tried Eastwood hifi? They stock the mrx and had keyspans when I bought mine (mrx that is). I use the serial port on my htpc so I didn't end up buying the keyspan.

For anyone having problems with usb Mic issues, it might be the supplied usb cable. Mine seems to have a poor connection which makes Mic detection flakey. I haven't tried a new cable yet, but squashing the micro usb end seems to help...
post #14380 of 16451
Quote:
Originally Posted by coresare View Post

Ok looks like my 2nd MRX 700 was infact defective. The new MRX 300 I just received doesn't make any type of hiss/noise at all like the MRX 700 did. Zilch. When I hook up my new Anthem MCA 30 amp there's a very very faint hiss though. Not enough to bother me.

So from my initial back and forth testing I cannot honestly say I can hear any difference between using the amp and not. Listening was done at -32 db so it was at a moderate - low listening level.

As much as I'd like to say it made any noticeable difference as I just spent $1885 for that MCA 30 amp, I cant.

I haven't tested it at louder levels with more dynamic music/movies though so the jury is still out.

Good stuff:). I appreciate your honnesty also, not everybody will admit what you've just admitted as most will try to justify their purchase in any way they can. Having said that, I now accept donations of MCA 30's:p

Report back with your findings at higher SPL.

cheers
post #14381 of 16451
Quote:
Originally Posted by esh516 View Post

Mrx hands down!.. I also had the denon, 4520 and the Mrx on loan from my dealer to decide which one I prefer
The denon,in my setup was having HDMI handshake issues
And when I set up audessey and compared it to arc..there was no contest..audessey sounds great when you have

nothing to compare it to..but put it up against arc and audessey did not have that " you are there" feeling. Arc sounded more real..it actually puts you smack dab in scene..I also believe the amps are much better than the denons....one thing that came as a nice surprise with arc was I was told to listen to arc for a week or two to get use to the sound before judging it..well after two weeks yes it sounded great..but..a amazing thing happened two months after listening day after day..me and my family sat down one evening to watch a blue/ray on the oppo 103
And after the movie started we both looked at each other and had a holy sheet moment!.. It was as if everything just clicked and fell into place..the sound,the placement of the sound effects ,everything just blew me away
I could not believe how realistic the sound was
They say give arc a few weeks of listening before judging it...I say two months!.. I have owned many avrs,seperates etc in the last 20 yrs..ain't nothing ever came close to what my ears are hearing right this moment!..
Sorry for the long post..just sharing my experience

Hello,
I am curious what speakers and sub are you using in your system?
post #14382 of 16451
Quote:
Originally Posted by coresare View Post

Ok looks like my 2nd MRX 700 was infact defective. The new MRX 300 I just received doesn't make any type of hiss/noise at all like the MRX 700 did. Zilch. When I hook up my new Anthem MCA 30 amp there's a very very faint hiss though. Not enough to bother me.

So from my initial back and forth testing I cannot honestly say I can hear any difference between using the amp and not. Listening was done at -32 db so it was at a moderate - low listening level.

As much as I'd like to say it made any noticeable difference as I just spent $1885 for that MCA 30 amp, I cant.

I haven't tested it at louder levels with more dynamic music/movies though so the jury is still out.

Very true since I compared 700 with an B&K 200.5.
post #14383 of 16451
Quote:
Originally Posted by Apgood View Post

For anyone having problems with usb Mic issues, it might be the supplied usb cable. Mine seems to have a poor connection which makes Mic detection flakey. I haven't tried a new cable yet, but squashing the micro usb end seems to help...

Unfortunately that was not my USB mic issue. The computers all see the mic, it is labelled as arc-1, it just wouldn't receive any sound. But works on my laptop. Flakey!!
post #14384 of 16451
Quote:
Originally Posted by diablo676 View Post

The article about ARC was most interesting, I hope they have part 2 next month. smile.gif

Based on past performance, hopefully Part 2 will be out this week.

Dr. Rich's previous mega-article for Secrets was a three-parter with the parts released even 7 days or so.
post #14385 of 16451
Here's part 2:

http://www.hometheaterhifi.com/audio-calibration/audio-calibration-reviews/anthem-room-correction-arc-including-a-subwoofer.html

Seems like the same story as before....near perfection at what it tries to do, but still leaves some work undone (crossover selection and phase adjustment).
Edited by bd2003 - 4/17/13 at 9:22am
post #14386 of 16451
Quote:
Originally Posted by bd2003 View Post

Here's part 2:

http://www.hometheaterhifi.com/audio-calibration/audio-calibration-reviews/anthem-room-correction-arc-including-a-subwoofer.html

Seems like the same story as before....near perfection at what it tries to do, but still leaves some work undone (crossover selection and phase adjustment).

Thanks, I'll have a read later. smile.gif I might have another do at my settings soon, using any knowledge gained - haven't run ARC since before Christmas. eek.gif
post #14387 of 16451
Quote:
Originally Posted by diablo676 View Post

Thanks, I'll have a read later. smile.gif I might have another do at my settings soon, using any knowledge gained - haven't run ARC since before Christmas. eek.gif

Yeah, he definitely clarified some parts of the bass management that I had incorrectly set. I'm also probably going to tighten my measurements to an 18 inch square like he did.
post #14388 of 16451
Quote:
Originally Posted by HeffeMusic View Post

Hello,
I am curious what speakers and sub are you using in your system?
Paradigm studio 60s
Studio 20s-rear
Cc590 center
Velodyne spl-1000r
All using straightwire crescendo speaker cable
Straight wire super silver HDMI cables
post #14389 of 16451
Ok took the MRX 300 + MCA 30 amp to -5 db ... Cant say I heard much difference compared to the MRX 700 alone. I might have been a little less nervous that the speakers were going to explode lol. Maybe it sounded like the speakers could go further without distoring? Not 100% sure. At those levels clarity starts to degrade .. I did not try between MRX 300 alone vs with amp.
Edited by coresare - 4/17/13 at 11:15pm
post #14390 of 16451
Quote:
Originally Posted by coresare View Post

Maybe it sounded like the speakers could go further without distoring?
Effortlessness?
post #14391 of 16451
Quote:
Originally Posted by coresare View Post

Ok took the MRX 300 + MCA 30 amp to -5 db ... Cant say I heard much difference compared to the MRX 700 alone. I might have been a little less nervous that the speakers were going to explode lol. Maybe it sounded like the speakers could go further without distoring? Not 100% sure. At those levels clarity starts to degrade .. I did not try between MRX 300 alone vs with amp.
Hi coresare, did you have the speakers set to large? If not then with the speakers set to small neither the MCA nor MRX were working all that hard since they were only playing the frequencies above the crossover. The sub would really be doing all the hard work since it would be playing the low frequencies that challenge an amp. If so that could account for why there wasn't any difference at extreme levels.
post #14392 of 16451
Quote:
Originally Posted by Legairre View Post

Hi coresare, did you have the speakers set to large? If not then with the speakers set to small neither the MCA nor MRX were working all that hard since they were only playing the frequencies above the crossover. The sub would really be doing all the hard work since it would be playing the low frequencies that challenge an amp. If so that could account for why there wasn't any difference at extreme levels.
Yep. Small 60. I figure the Sub is doing most of the work but was hoping to hear more clarity also.
post #14393 of 16451
Question: in the article, he mentions that the sub xover in ARC will cut off the LFE above it. The solution is to enable "bypass LFE xover"....but I can't find this anywhere in my mrx300. Is this a d2v only feature?
post #14394 of 16451
Quote:
Originally Posted by coresare View Post

Ok took the MRX 300 + MCA 30 amp to -5 db ... Cant say I heard much difference compared to the MRX 700 alone. I might have been a little less nervous that the speakers were going to explode lol. Maybe it sounded like the speakers could go further without distoring? Not 100% sure. At those levels clarity starts to degrade .. I did not try between MRX 300 alone vs with amp.
Maybe your speakers need time to break in?
post #14395 of 16451
Quote:
Originally Posted by bd2003 View Post

Question: in the article, he mentions that the sub xover in ARC will cut off the LFE above it. The solution is to enable "bypass LFE xover"....but I can't find this anywhere in my mrx300. Is this a d2v only feature?

Yep, it's only in the prepros.

Ditto more flexibility in the crossover settings.
post #14396 of 16451
Quote:
Originally Posted by Steve Dodds View Post

Yep, it's only in the prepros.

Ditto more flexibility in the crossover settings.

Bleh, that's too bad, most decent receivers can handle that.
post #14397 of 16451
Quote:
Originally Posted by bd2003 View Post

Bleh, that's too bad, most decent receivers can handle that.

I'd made a note to set the Anthem main menu to send all LFE to sub, thought I was able to - but I must have been remembering that option on my Onkyo. rolleyes.gif

Anyway the other main part of my new plan was to set the cinema crossover to 100 or 120Hz but leave the music one at 60Hz, so I suppose that works out much the same really - the LFE should always end up going to the sub in cinema mode.

Not got my microphone out yet though to test it, maybe later on. smile.gif
post #14398 of 16451
I think I can live with the hole between 80-120hz on LFE....there shouldn't be too much info there. My only concern is with my gaming systems that encode 5.1/7.1 on the fly....I'm not sure how they handle LFE. I think they just skip it altogether and just let bass management do its thing, but if a game is a little too clever and does its own bass management, Id end up with a pretty wicked hole in my response.
post #14399 of 16451
Received word that my replacement mic and CD are on the way. In the meantime, last night I finally had a chance to sit and listen to a couple CD's on my Oppo-103. Wow the MRX delivers amazing, clear sound. I found AnthemLogic-Music to be one of the only presets I've ever heard that actually sounds good. Looking forward to getting my new mic so I can try and tweak my speakers a little, but I can't imagine how things could sound better. Even after the frustration of a defective mic, I'm very please with this receiver.
post #14400 of 16451
I've owned both Anthem prepros and receivers and their bass management is murky at best. I've never managed to get a coherent explanation of what they do from either the official or unofficial experts here at AVS.

I did my own measurements a while back and found all sorts of oddities. Aside from the LFE issue, the crossover frequency you set in the Targets is not what ARC actually uses. I found the sub rolling off much higher, and that it varied depending on whether you chose Movie or Music, and again when using Anthem Music (for example) or Stereo.

Anthem say this is part of their proprietary system and we should just trust it, which may be valid, but often I find the Movie setting both sounds and measures too bassy.

I prefer ARC to Audyssey because you can tweak it to a degree and their target curve is more natural, but for those of us who like to cross low to a sub for music, I wish they'd let the full LFE channel through (it is supposed to be a dedicated channel and not remixed) and that they gave true manual control over crossovers.
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