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08-20-2007, 10:26 PM
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Headphoneus Supremus
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Join Date: Mar 2006
Posts: 1,825
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Quote:
Originally Posted by swt61
I don't have an answer Al, but I think I may be just days away from hearing my dual differential Zapfiltered "Epic Opus". I've got a PS Audio Lambda transport sitting here waiting for the initial test drive, and I'm quite curious to hear the combo.
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cool! I'm interested in hearing about all the updates you've done to your system! Hopefully I'll be able to find your post when you get around to writing something up 
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08-21-2007, 12:12 AM
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Junior Head-Fi'er
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Join Date: May 2004
Posts: 21
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Quote:
Originally Posted by BrianDonegan
I need a couple weeks to build up enough stock for what I think the response will be (scared actually). Lets call it Sept 3rd for now.
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Gadzooks! I've been following this over on diyaudio, where my take was that there is a lot of interest but not an overwhelming number that are sitting around hitting 'refresh' on the Opus page waiting for the order link to finally show up. After reading this thread, though, I'm a bit concerned about getting shut out of this run. You guys look to have a winner on your hands.
Sept 3 would be bad, though - Labor Day, and I'll be out of e-touch. Wait until the 5th :-)
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08-21-2007, 12:41 AM
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1000+ Head-Fi'er
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Join Date: Aug 2004
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I'm planning on building another dual differential opus dac for my bookshelf rig, and then for fun I think I'm going to see how small I can make an opus dac 
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08-22-2007, 05:14 AM
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Headphoneus Supremus
Member of the Trade:
S² Audio
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Join Date: Sep 2005
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Quote:
Originally Posted by luvdunhill
cool! I'm interested in hearing about all the updates you've done to your system! Hopefully I'll be able to find your post when you get around to writing something up |
Well Jim told me he's shipping it tomorrow, so you won't have long to wait. I'll PM you a link to my post once I've had a chance to listen a bit.
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08-22-2007, 05:16 AM
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1000+ Head-Fi'er
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I'm also looking forward to your impressions
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08-22-2007, 05:59 AM
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Headphoneus Supremus
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I think I'll post impressions in this thread then, or at least link to it in here.
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08-22-2007, 04:21 PM
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Headphoneus Supremus
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Quote:
Originally Posted by Nebby
Just quick impressions for now...more details later.
With headphones they are very detailed, and IMO more detailed than Aaron's Oritek modded Zhaolu. On the other hand the Zhaolu seemed to have a much wider soundstage.
After switching the Apache to preamp and listening to Aaron's Av123 Mini Strata's powered by a Pass Aleph 30, I am inclined to believe that the DAC excelss much more at imaging with speakers than with headphones.
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I just went back to the beggining of this thread, and your post grabbed my attention. I was surprised that the Aleph 30 could adequately power the Mini Stratas. With the ribbon drivers I assumed they'd be very power hungry.
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08-22-2007, 09:02 PM
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Headphoneus Supremus
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Join Date: Jan 2004
Location: Dallas, TX
Posts: 3,026
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Just sitting on the Opus site, pounding refresh...
__________________
Starters: Cambridge 840c -> ApureSound Balanced IC -> Blue Hawaii -> (Stax reterminated) HE60
Bench: Cambridge 840c -> Balanced Bijou -> APS v3 -> Balanced HD800
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08-22-2007, 09:09 PM
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Headphoneus Supremus
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Join Date: Dec 2003
Location: Toronto, Ontario
Posts: 10,132
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Can't wait to hear about your 'Epic Opus' Steve. 
__________________
"For a list of all the ways technology has failed to improve the quality of life, please press three."
Moon Audio modded Original CD-2008MK-II / de Almeida Signature Shadow XLR / McAlister Audio Massive Attack / Headphile modded BlackGold recabled AKG K340 OR APureSound V3 recabled Grado RS-1
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08-22-2007, 11:43 PM
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1000+ Head-Fi'er
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Join Date: Aug 2004
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Quote:
Originally Posted by swt61
I just went back to the beggining of this thread, and your post grabbed my attention. I was surprised that the Aleph 30 could adequately power the Mini Stratas. With the ribbon drivers I assumed they'd be very power hungry.
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I have no doubt that they would improve with more power, but what I heard from his current setup was no slouch. I never felt like the speakers were constrained. Of course, I don't have too much speaker experience to reference to, so my opinions are extremely skewed when it comes to speakers.
I'm curious how the opus does with and without the zapfilter
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08-23-2007, 12:38 AM
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Headphoneus Supremus
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Quote:
Originally Posted by Nebby
I'm curious how the opus does with and without the zapfilter |
Well fierce_freak was gracious enough to offer up his Opus boards so I wouldn't have to wait for them to be available again. So his impressions will be without benifit of direct comparison. He says he does have some impressions, and I gather they're favorable, but he won't give them until I hear the DAC myself. That's cool, so I can hear it without any preconceived ideas. Once I give some impressions I'm sure Jim will chime in with his ideas of the Opus vs. Zapped Opus. I'm curious about the soundstage myself.
I believe the "Epic Opus" uses a different transformer too. We talked about it anyway as per Renato's advice.
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08-23-2007, 04:25 AM
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Headphoneus Supremus
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Join Date: Mar 2006
Posts: 1,825
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Quote:
Originally Posted by pabbi1
Just sitting on the Opus site, pounding refresh...
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 is this for your office setup, or are you going to hang it off your Eastsound?
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08-23-2007, 04:54 AM
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500+ Head-Fi'er
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Join Date: Dec 2006
Location: San Diego, CA
Posts: 880
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Quote:
Originally Posted by swt61
I just went back to the beggining of this thread, and your post grabbed my attention. I was surprised that the Aleph 30 could adequately power the Mini Stratas. With the ribbon drivers I assumed they'd be very power hungry.
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Steve, I was very surprised too with the Aleph. When speaking with the makers of the speakers, they felt that 30 watts should drive them just fine as they sell the speakers with a 39 watt tube amp. For the moment, I am quite happy with the sound but am looking to upgrade to a larger balanced Pass Labs amp in the future. The Aleph 30 sounds quite good with the Strata's but I only have a 30 year old amp to compare it too right now  The difference between sources was truly impressive and the forward presenting soundstage (almost holographic) with the Opus DAC is what sold me on it. I'm looking forward to your impressions and please let us know your opinion through your speaker rig too.
Aaron
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08-23-2007, 05:41 AM
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1000+ Head-Fi'er
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I wish I could hook up the the monoblocks I'm building to your speakers Aaron, I'm very curious to hear how they compare. Alas it looks like they're going to end up too heavy to ship economically, with the transformer alone weighing in at 10lbs
I am also curious how having the ballsie with filter enabled will sound compared with the zapfiltered opus and stock opus.
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08-23-2007, 05:52 AM
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Headphoneus Supremus
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Join Date: Jan 2004
Location: Dallas, TX
Posts: 3,026
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Quote:
Originally Posted by luvdunhill
is this for your office setup, or are you going to hang it off your Eastsound? |
No, it will have a dedicated transport, like this:
The designers have mentioned I can run the Ballsie and the OPUS both from the dual PSU (using the 15v toroid)... and using the + rail to power the DAC. Anyone else have experience with this idea? The constraint is space, and I have enough for two toroids and one psu board, but not two - anyone else being this aggressive?
__________________
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WIP: Super Secret 'Stat X amp, HD800, Raven
Builds: SDS Labs, m³, Millett Hybrid, m³, Blue Hawaii ,Millett Maximus Balanced , Balanced Bijou, SOHAII, Raven, eXStatA,
eXStatA Tube,
Vulcan / Janus (soon)
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