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Gear / Technical Help => Playback Forum => Topic started by: Simp-Dawg on April 29, 2005, 02:24:27 PM

Title: Grace m902
Post by: Simp-Dawg on April 29, 2005, 02:24:27 PM
got to play with it yesterday over at Grace's office...HOLY SHIT IT IS SWEET!!!!  here's some notes on it that I posted over in colorado crew...

Quote
yeah it's a high quality 24-bit/192khz DAC and headphone amp but can also drive powered speakers, like the active reference monitors i use.  it would be much better than going straight into the internal soundcard i have now.

other features i can remember:
-both balanced and unbalanced analog inputs on xlr and rca
-rca outputs
-digi-in includes aes, s/pdif, toslink, and usb!
-switchable output from monitors to headphone via push-button volume knob
-remote control
-xfeed technology which simulates the head baffle effect when listening over headphones
-pimp light-dimming technology to set the mood Grin (jamie explained it like that, pretty much)
-2 headphone outs

anyone seen/have one yet and want to comment?  i'm pretty certain i'm getting one to drive my alesis m1 active mk-II reference monitors
Title: Re: Grace m902
Post by: JasonSobel on April 29, 2005, 02:46:04 PM
I haven't seen the m902, but I have had the 901 for just over a year now.  From what I gather, the D/A has been improved, but the analog headphone amp section is very similar (if not the same??).  That said, I absolutely love my 901, and I say go for it, get the m902.  I've briefly thought about selling the 901 and buying an m902, but at this point, I don't think I need to do it just yet.
Title: Re: Grace m902
Post by: Nick's Picks on April 29, 2005, 02:53:40 PM
I lust for one myself.  I'll be listening to Jasons 901 tomorrow!  :)

my dream rig right now is the 902  > manley snapper 100w tube monos
that would kick some SERIOUS ass !!  Minimalist approach.  A very high end analog signal coming out, so a great amp is a must to really make something special.  but I bet a signal like that would bring out the best in any amplification device.
Title: Re: Grace m902
Post by: dnsacks on April 29, 2005, 02:54:12 PM
Josh -- doug oade (and many others) liked the 901 (its predecessor) a LOT.  Quite a few folks actually use it as a preamp, feeding the headphone out into a power amp.  I've never heard one, but sounds like it has superior d>a conversion circuitry and really nice sound.  I'm sure the 902 will be real nice too -- you might want to see if you can find a used 901 as it'll probably set you back a lot less change

Title: Re: Grace m902
Post by: Tim on April 29, 2005, 02:59:17 PM
buy it and bring it over to my house, I want to hear that thing!

the m901 is a Class A rated component by Stereophile I believe

there should be a review of the m902 coming out soon
Title: Re: Grace m902
Post by: Simp-Dawg on April 29, 2005, 03:20:45 PM
buy it and bring it over to my house, I want to hear that thing!

the m901 is a Class A rated component by Stereophile I believe

there should be a review of the m902 coming out soon
i believe jamie said the latest review puts this at the same high class rating.  i'm not looking to save any money on a 901, i want the goods!!!

i put about $400+ into these reference monitors and i'm driving them with a $100+ internal soundcard...i just feel i'll get a lot more out of them PLUS a lot of other great features with the 902...and it is versatile enough to use in other situations when i change things up
Title: Re: Grace m902
Post by: Tim on April 29, 2005, 03:28:17 PM
you will be able to keep that in your hifi system for a looooooong time... it's a first class piece of gear that is also very versatile. if you have the scratch then I think it's a no-brainer...
Title: Re: Grace m902
Post by: Brian on April 29, 2005, 04:18:24 PM
I listened to it at the aes convention last october.  It's the best headphone amp i've ever heard to date.  So clean, detailed, and clear.  Of course they had some grados for me to listen to it with.  Grados are fantastic headphones.  I have yet to hear this unit as a DAC for monitors..  I'm sure it is top notch though.  You should definitely get one Josh if you have the money.
Title: Re: Grace m902
Post by: Daryan on April 29, 2005, 04:52:14 PM
Stereophile hinted this month that it may very well be the "holy grail" of dacs.  Review next month I think.
Title: Re: Grace m902
Post by: scb on April 29, 2005, 05:10:31 PM
i saw one going on audiogon a few weeks back, so i emailed the seller to ask what he thought of it.  he was selling it to buy back a benchmark because that's what he preferred

just thought i'd mention that
Title: Re: Grace m902
Post by: MattD on April 29, 2005, 05:32:53 PM
Also, only 16/44.1 or /48 over the USB. USB2 or FW for 24/96 or /192 would have been way better, IMO. I'll wait for another generation.
Title: Re: Grace m902
Post by: BobW on April 29, 2005, 07:53:53 PM
Also, only 16/44.1 or /48 over the USB. USB2 or FW for 24/96 or /192 would have been way better, IMO. I'll wait for another generation.

+ T      Great catch, that was buried in the manual.   
I wonder why a $1600 device would have USB1.1 in 2005 ?

Word to Mike.

Still, I bet it sounds great. The M901 kicks butt. So does the Benchmark DAC-1.  I'd be proud to own either.

Now if only someone will answer my question from a few months ago about how it is possible to "hear" the differences in digital cables,
especially with PLL technology, such as Grace's s-Lock.........
But I digress.
Title: Re: Grace m902
Post by: Simp-Dawg on April 30, 2005, 01:09:52 PM
is it ok that it has unbalanced rca outs to drive my monitors?  or would i want balanced for that?
Title: Re: Grace m902
Post by: Simp-Dawg on April 30, 2005, 11:13:09 PM
is it ok that it has unbalanced rca outs to drive my monitors? or would i want balanced for that?
bump this question...
Title: Re: Grace m902
Post by: Brian on April 30, 2005, 11:21:16 PM
do your monitors have balanced inputs?
Title: Re: Grace m902
Post by: Simp-Dawg on May 01, 2005, 01:36:03 AM
good question.  they accept both via combo xlr/trs jacks.  here's the manual:
http://www.alesis.com/downloads/manuals/M1ActiveMKII_Manual.pdf
Title: Re: Grace m902
Post by: Charlies on May 01, 2005, 03:13:29 PM
Also, only 16/44.1 or /48 over the USB. USB2 or FW for 24/96 or /192 would have been way better, IMO. I'll wait for another generation.

+ T      Great catch, that was buried in the manual.   
I wonder why a $1600 device would have USB1.1 in 2005 ?



Is that what these are going for? 
Title: Re: Grace m902
Post by: Brian on May 01, 2005, 03:27:46 PM
good question. they accept both via combo xlr/trs jacks. here's the manual:
http://www.alesis.com/downloads/manuals/M1ActiveMKII_Manual.pdf

great!  just take the unbalanced line out of your m902 into the xlr line in of your speakers.  that would be best for your situation.  according to your manual, your monitors will take a balance or unbalanced signal.  you just need to make the proper cables. 

edit: rca>trs is fine too if that's easier. 
Title: Re: Grace m902
Post by: BobW on May 01, 2005, 10:51:51 PM
do your monitors have balanced inputs?

Balanced and Unbalanced isn't so much a shielding/ grounding issue as a level / voltage issue.

Balanced  = "pro" level  of +4 DBv
Unbalanced = "consumer" level of -10 DBv

or about 1 VDC of signal difference to a 600 ohm load, if memory serves.
In other words you'll need to adjust gain a bit to compensate.

FWIW, Eveanna Manley stated strong doubts on the benefits of balanced interconnects.
(She's my kinda gal)   
Title: Re: Grace m902
Post by: Nick's Picks on May 02, 2005, 06:40:10 AM
Eveanna.....mmmmmmmANLEY!
Title: Re: Grace m902
Post by: Simp-Dawg on May 08, 2005, 08:07:56 PM
i pulled the trigger, it should be here this week.  now i gotta get some new cables ;D
Title: Re: Grace m902
Post by: F.O.Bean on May 08, 2005, 08:24:01 PM
i pulled the trigger, it should be here this week. now i gotta get some new cables ;D

hey josh, could you PM me and lemme know the price and also, what cans ya got to run thru this bad-boy?

ive been thinking of upgrading my home playback since the rig is about where i want it :) and i wanna start w/ this!
Title: Re: Grace m902
Post by: JasonSobel on May 08, 2005, 08:44:35 PM
i pulled the trigger, it should be here this week.  now i gotta get some new cables ;D

nice going  :)  I'm sure you'll be very pleased with the grace.
Title: Re: Grace m902
Post by: BobW on May 10, 2005, 10:08:05 PM
i pulled the trigger, it should be here this week.  now i gotta get some new cables ;D

Cool !  When's the listening party ?    ;D

+T for a hell of a toy !

Live my dream for me.  I'm hoping to join Team m902 very soon.
Title: Re: Grace m902
Post by: Simp-Dawg on May 11, 2005, 10:44:03 AM
since it will probably arrive friday or so, and i'll be in vegas, it will get set up next week and then the listening parties can commence!  ;D 
Title: Re: Grace m902
Post by: Tim on May 11, 2005, 12:24:08 PM
just have it sent to my place, I'll break it in for you while you're out of town :P
Title: Re: Grace m902
Post by: Simp-Dawg on May 11, 2005, 02:37:57 PM
just have it sent to my place, I'll break it in for you while you're out of town :P
HA!

good one :P

it'll be here by monday, remote will be shipped separately in a couple weeks but no big deal.  how would you rate those sony headphones you lent me, tim?  will they be good for critical listening?  they sound great from what i've heard so far...

i can't wait to hear this thing drive my monitors...mmmmm!
Title: Re: Grace m902
Post by: Tim on May 11, 2005, 03:11:24 PM
they are really nice headphones... a little colored but they are first rate. do a search for them on this site (sony mdr7506) and you'll find some good reports, a lot of engineers use them.

you might want to look into some Grado's too
Title: Re: Grace m902
Post by: Simp-Dawg on May 11, 2005, 05:54:20 PM
yeah i hear a lot about the grados
Title: Re: Grace m902
Post by: JasonSobel on May 11, 2005, 10:20:33 PM
yeah i hear a lot about the grados

with good reason  ;D
Title: Re: Grace m902
Post by: F.O.Bean on May 11, 2005, 10:29:55 PM
congrats simp, and thanks for the info about the m902 ;D

i would love to pull the trigger on one to kinda start my venture into HIFI playback, well, i want something more than my mini-bose cibe speakers, i need more thump ;D

and im thinking w/ the 902 and a great pair of cans, that could be the start of a great playaback listening station, well, better than the one i currently have, then after that, some nice home speakers, and im set

what do ya'll prefer tho? near-fieldmonitoring speakers w/ a sub or a nice pair of tower speakers w/ a sub ??? ;D
Title: Re: Grace m902
Post by: pfife on May 11, 2005, 10:54:40 PM
http://taperssection.com/index.php?topic=34162.0  ;)

I'd say skip the monitors....
Title: Re: Grace m902
Post by: Simp-Dawg on May 17, 2005, 02:58:39 AM
soooo gooooood....... ;D
Title: Re: Grace m902
Post by: Tim on May 17, 2005, 12:01:23 PM
I want to do a shootout between the 902 and my Bel Canto DAC2 sometime soon Simpy

congrats man, that thing looks sweet!