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| Headphone Amps (full-size) Discussion of desktop headphone amps. |
03-24-2008, 01:28 AM
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Headphoneus Supremus
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Join Date: Aug 2006
Location: Belgiumland
Posts: 2,296
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Quote:
Originally Posted by All Day Breakfast
LSD [low self discharge] NiMH tech has dramatically improve the performance, longevity, durability, and cycle life too. However, it is new and relatively unproven tech. For general use, the Sanyo Eneloops LSD NiMH seem the very best and there seems to be no reason to buy any non-LSD NiMH cells these days
and
regular NiMH AA rechargeable batteries giving 10 shots in a digital camera, regular AA alkaline batteries gave 90 buy Sanyo eneloops gave over 400 shots on a charge!
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Of course, there was a time when one could get LSD in a sugarcube. So I don't know how I can pass up the opportunity to go trippin' with LSD in my iQube! 
Eneloops ordered. Thanks, Eric & Steve for all the great info! 
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03-24-2008, 10:10 AM
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Junior Head-Fi'er
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Join Date: Mar 2008
Location: TPE, Taiwan
Posts: 9
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i'm still interested in hearing from anyone using iQube with ER-4S. i'd be looking to use either iQube (getting a purchases broker now) or Xin SuperMakro IV (sigh, long waiting list) in my portable system. Any comments on iQube vs Xin's products would be very helpful too.
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03-24-2008, 11:10 AM
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Headphoneus Supremus
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Join Date: Jan 2007
Location: Maastricht, The Netherlands
Posts: 3,502
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Quote:
Originally Posted by All Day Breakfast
Regular NiMH AA rechargeable batteries giving 10 shots in a digital camera, regular AA alkaline batteries gave 90 buy Sanyo eneloops gave over 400 shots on a charge!
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How much mAh did those "regular" NiMH AA batteries have?
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03-24-2008, 11:48 AM
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Junior Head-Fi'er
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Join Date: Mar 2008
Location: London England
Posts: 15
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Quote:
Originally Posted by Contrastique
How much mAh did those "regular" NiMH AA batteries have?
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I've done a bit of the research for you... Eneloop have a similar claim on this page and a place to ask further questions.
The original info I posted came from this site which seems to be people dealing with survival issues in extreme conditions.
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03-24-2008, 12:08 PM
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Headphoneus Supremus
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Join Date: Jan 2007
Location: Maastricht, The Netherlands
Posts: 3,502
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Quote:
Originally Posted by All Day Breakfast
I've done a bit of the research for you... Eneloop have a similar claim on this page and a place to ask further questions.
The original info I posted came from this site which seems to be people dealing with survival issues in extreme conditions. |
Thanx for the info. The Eneloop specs are used in some other brands as well, for example Ansmann. It's a good system.
Too bad the article doesn't mention the mAh as that makes the comparism useless. If you put 900 mAh in a digital camera it surely won't even last 10 photos long. When talking like 2000 mAh the results will be very different though they won't last a 400 pics, which I do find hard to believe when using Eneloops.
Also what camera did they use for the testing as different brands drain the batteries differently?
But anyways, thanx for your reply!
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03-24-2008, 12:55 PM
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Junior Head-Fi'er
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Join Date: Mar 2008
Location: London England
Posts: 15
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Quote:
Originally Posted by Contrastique
snip...won't last a 400 pics, which I do find hard to believe when using Eneloops.
Also what camera did they use for the testing as different brands drain the batteries differently?
But anyways, thanx for your reply!
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and the characteristics of the charging unit, the ambient temperature, the time since charge... Battery testers at the candlepower forum seemed to have a difficult time comparing batteries because of the myriad of variables involved.
Everything that I read in my 1 hour excursion into the world of batteries supported two points which I can't independently verify; that LSD (I know, I know, I'm also a child of the 60's, in fact from the mid-Hudson Valley NY if that means anything to anybody ) LSD NiMH batteries are the hot topic among NiMH affectionados and also that Eneloops were mentioned regularly as the best of the current crop of LSD NiMH.
Last edited by All Day Breakfast; 03-24-2008 at 07:55 PM.
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03-24-2008, 05:26 PM
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500+ Head-Fi'er
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Join Date: May 2004
Location: The Great State of Texas...
Posts: 842
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Quote:
Originally Posted by Dexdexter
Eric, despite Hans' reservations, I have accepted your challenge and made my very first YouTube video!  (Apologies in advance for the crappy picture quality and stumbling narration...)
iQube Opening Video Tutorial
Click HERE.
6moons iQube Review
The review was conducted by Marja Vanderloo & Henk "LongBeard" Boot. It provides some fascinating insight into the origins and development of the iQube, with particular attention paid to its Class D topology.
Click HERE.
Congrats, Hans! |
Great video! Makes it a heck of a lot easier to conceptualize opening when you can see it in action.
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03-24-2008, 06:40 PM
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Headphoneus Supremus
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Join Date: Oct 2003
Location: Hell- Canton OH Heaven- Jupiter FL
Posts: 1,526
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Any comparisms of the iQube and the amp sections of the Pico and the Predator?
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03-24-2008, 07:37 PM
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Headphoneus Supremus:
Reviewerus Prolificus
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Join Date: Apr 2005
Location: Chicagoland
Posts: 11,439
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I compared them in my portable amp review.
__________________
PLEASE NOTE: Due to the volume of PM's I have been receiving in connection with my reviews, I no longer have the time to answer PM's from people with zero posts. Please read head-fi first before asking questions.
Team GO-U-NORTHWESTERN
Pics: Main Home Rig; Bedside Rig; Office Rig; Portable Rig;
Headphones: JVC HP-DX1000, HA-RX900; Headphile Deep Cup Darth Beyers VXD3,VXD4; Beyerdynamic DT990/600 (Manufaktur) DT770/600 (Manufaktur), DT880/600 Balanced (Manufaktur); HiFi-Man HE-2 Planar Magnetic; Sennheiser PXC-350; Shure SRH840
Home amps: Ray Samuels Audio Stealth (Mullard ECC32/CV4003); Decware Zen CSP-2 (Amperex BB 6DJ8/Sophia Princess 274B); Darkvoice 337 (GEC 6AS7G's/Tung-Sol mesh plate 6SJ7GTs); Wheatfield Audio HA-2 (Mullard ECC32/GEC 6AS7G/GEC U52); Ming-Da MC84-C 07 (Mullard CV4004/EL84/EM87); Audiotailor Jade (GEC 6AS7G/Sylvania 5751); J. Sound Lab Headphone (Mullard 12AT7); Audio-GD Phoenix; Musical Paradise MP-301 (Ken-Rad 6V6GT/Mullard 6AU6)
Portable Amps: Ray Samuels Audio P-51 Mustang; Decware ZenHead; Qables iQube
Sources: Denon DP59L table + Clearaudio Maestro Wood / VPI Scoutmaster + Benz Micro Wood L2 > Audio Electronics PH-1 DJH Phono Preamp; Music Hall 25.2 DAC; Denon DVD-5900;Red Wine Audio iMod iPod (Apple Lossless) & ALO VCap dock; Sony SCD-555ES SACD player
Loudspeaker system: Krell KAV250 Preamp>Sunfire Signature II Power amp > B&W Nautilus 800 Signatures + Velodyne FSR-1500/Martin Logan Descent
Tube testers: B&K Dyna-quick 650 & Dyna-Jet 606
Head-fi feedback
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03-26-2008, 02:54 AM
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Headphoneus Supremus:
Moderator:
Needs a regular fix of 'Fi.
'06 National Meet Co-Coordinator
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Join Date: Jan 2002
Location: The Elm City
Posts: 7,581
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Quote:
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Originally Posted by jpelg
Can the amp be used with just an AC adapter, sans batteries, as a home amp?
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Quote:
Originally Posted by Dexdexter
James, the iQube may of course be used as a home amp, but batteries absolutely need to be in place for it to function.
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Since most rechargeables shouldn't be continuously plugged into a power source, it seems like I'll have to switch the charger in & out as needed.
Quote:
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Originally Posted by jpelg
2. Has anyone determined which of the Radio Shack PS adapter tips work with the iQube?
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Quote:
Originally Posted by jeremyrose77
the pdf that the outer pin is 2.35mm and inner is 0.7mm
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Rat Shack seems to have a 2.3mm or 2.5mm adapters. No 2.35mm  . Since Hans doesn't recommend the 2.5mm, should I try the 2.3mm? I'm just wondering if that difference will be a problem making sufficient connection to charge the batteries.
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03-26-2008, 10:04 AM
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Join Date: Sep 2005
Location: Netherlands, near eindhoven
Posts: 785
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Quote:
Originally Posted by jpelg
Since most rechargeables shouldn't be continuously plugged into a power source, it seems like I'll have to switch the charger in & out as needed.
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No that is not needed, the charging circuit inside the iQube switches off when a certain charge is reached. Then untill the charge reaches a certain lower level it will switch on again. So, although the charger is continously attached to the iQube the chargebale batteries are not continously plugged in.
Quote:
Originally Posted by jpelg
Rat Shack seems to have a 2.3mm or 2.5mm adapters. No 2.35mm . Since Hans doesn't recommend the 2.5mm, should I try the 2.3mm? I'm just wondering if that difference will be a problem making sufficient connection to charge the batteries. |
2.3 is ok and will give no problems. Please also check the internal diameter.
Rgds Hans
__________________
iQube V2 available now, read all about it here
Find our cables and DIY parts webshop here: www.qables.com
2 new ultra low and thin iPod connectors available, please find them here
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03-28-2008, 02:58 PM
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Headphoneus Supremus
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Join Date: Oct 2003
Location: Hell- Canton OH Heaven- Jupiter FL
Posts: 1,526
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I did it, I ordered one today from moon audio I just hope it sounds better than my mini box E+. I just couldn't pass up moon audio's pre-sale price. By the way, Drew at moon audio has been great so far with super fast comminication! Now the waiting begins.....
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03-28-2008, 03:33 PM
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1000+ Head-Fi'er
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Join Date: Jun 2001
Location: Marana, AZ
Posts: 1,033
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Wish I could say the same about communciation with him.
__________________
HOME/PORTABLE SOURCE: Apple 16Gb iPhone, IPod Video 30Gb
CABLES: My own custom built Cardas LOD for iPhone
AMP: Qables iQube
IEM: Ultimate Ears UE-11's
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03-28-2008, 04:07 PM
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Headphoneus Supremus
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Join Date: Oct 2003
Location: Hell- Canton OH Heaven- Jupiter FL
Posts: 1,526
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Quote:
Originally Posted by flashbak
Wish I could say the same about communciation with him. |
Wow, He has got back to me with every query within an hour or two. Oh, and thanks Skylab for the comparisms between the amps it really helped,- it seems it's a frst class amp, I hope there is no hiss with my e530's. There is on the mini box with the volume past 2.
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03-28-2008, 05:15 PM
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Headphoneus Supremus
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Join Date: Jul 2007
Location: Cary, NC
Posts: 2,404
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I'm only about a mile or two away from moon audio right now. I wish I didn't need a home system and had more money. I would be all over this.
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