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| Headphone Amps (full-size) Discussion of desktop headphone amps. |
06-26-2009, 04:58 AM
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Headphoneus Supremus
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Join Date: Jan 2005
Location: Champaign, IL
Posts: 2,336
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Damn. I think the heat might have broken my Keces DA-152! (update: great customer service!)
Well, I haven't been listening to music for a few days, mostly because it's been too hot and muggy in my room to be able to comfortably sit in my chair and relax. However, tonight was "cool" enough that I thought I might give it a try... only to find out that something's not right with my Keces!! 
It powers up fine, and when I turn the knob all the way up I can hear a small bit of noise (amp section seemingly works). The computer can recognize the Keces and play music, but the little green light inside the unit which goes on when a signal is being decoded won't come on, and there's no sound!
Since I leave the Keces amp/DAC combo on 24/7, could the room temperature have caused something to break, even when it wasn't playing?! It's off right now, and I'll give it a try again tomorrow, but this is a major bummer right now. 
P.S. I tried it on both my dedicated music PC and my laptop, and neither worked.
P.P.S. I also tried turning the unit off and on, unplugging/replugging the USB cable, and restarting the computer. Nothing. 
__________________
Listening chair: Keces DA-152 > Sennheiser HD-600 (w/BlackSilver V2)
Desk: Corda 3Move > Sennheiser HD-600 (w/BlackSilver V2) / Sony MDR-D66 Eggos
Portable: Sansa Fuze > LOD > Fiio E5 > Head Direct RE0
Team Grad-Fi! I pity the foo' who doesn't give me feedback!
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06-26-2009, 05:19 AM
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1000+ Head-Fi'er
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Join Date: Oct 2004
Location: Nevada
Posts: 1,323
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Try a different USB cable, make sure the audio playback in your OS is set to the DAC, e-mail Keces.
__________________
Devilsound DAC > Eddie Current EC/SS > Grado SR225i / Shure SHR840
You unlock this door with the key of being an innocent noob. Beyond it is another dimension. A dimension of split personalities and incoherent sentence construction. A dimension of paradox and absurdist anecdotes. A dimension of shilling. A dimension of multiple accounts but a single IP address. You're moving into a land of both desperate misdirection and manipulative suggestion. You've just crossed over...into the Beresford Zone.
Team Don't Buy Beresford
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06-26-2009, 07:07 AM
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Headphoneus Supremus
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Join Date: Jun 2008
Location: Los Angeles, California
Posts: 2,683
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Dang it....my bad luck must've rubbed off on you. My amp recently died too!
Definitely email Keces, go to ebay and look ask the seller and I'm pretty sure he'll replace it for you considering that your unit is less than a year old.
__________________
Cassette tape -> iBuds
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06-27-2009, 03:48 AM
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100+ Head-Fi'er
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Join Date: Mar 2009
Location: Seminole, FL
Posts: 139
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Bummer!
I was just up in Joliet myself this week and I mean to tell you, it was HOT! It was even hotter than where I live in Florida! Very surreal. Especially for this early in the year.
It was also VERY humid (at least for IL). You might consider letting it stabilize for a few days. Where you running AC prior? Any possibility of condensation building up inside the box due to temperature differential?
Just a thought....
jk
__________________
Phones: HD650, HF2, SR225i
IEMs: Klipsch Image 5
Amps: Whiplash Millett miniMAX
Sources: DIY Passive Switchbox/y1 DAC (First take finished), Keces DA-151mk2, NAD T-585
Past Equipment: Keces HA-171 (amp)
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06-27-2009, 03:57 AM
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Headphoneus Supremus
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Join Date: Jan 2009
Location: Under Your Bed
Posts: 2,294
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Haha that's what all my friends back home (north Illinois) are saying. I'm currently in Florida until next week. They say we got it backwards. I feel bad for my dog though. He's probably suffering from the heat.
Anyways, back on topic. My condolences. I hope you get a new one!
The only thing I suspect is overheating, but that's pretty doubtful considering it sort of works...
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06-27-2009, 10:33 PM
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Headphoneus Supremus
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Join Date: Oct 2006
Location: Greater Cincinnati area
Posts: 3,986
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Put it in the refrigerator a while. j/k
Do you have another input you could try? spdif or optical
__________________
d HC b
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07-01-2009, 05:51 AM
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Headphoneus Supremus
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Join Date: Jan 2005
Location: Champaign, IL
Posts: 2,336
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Well, I'm out of ideas here. Even in the cooler weather, it still doesn't work. I've tried the DAC on two different computers, and I've used two different USB cables. Nada.
I sent an email to David earlier today. Hopefully he can help!
P.S. I'm sooooo glad that I picked up a 3Move a couple of months ago, or I would be seriously hurting for tunes right now! 
__________________
Listening chair: Keces DA-152 > Sennheiser HD-600 (w/BlackSilver V2)
Desk: Corda 3Move > Sennheiser HD-600 (w/BlackSilver V2) / Sony MDR-D66 Eggos
Portable: Sansa Fuze > LOD > Fiio E5 > Head Direct RE0
Team Grad-Fi! I pity the foo' who doesn't give me feedback!
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07-01-2009, 06:39 AM
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Headphoneus Supremus
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Join Date: Jun 2008
Location: Los Angeles, California
Posts: 2,683
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Keep us updated on what David's gonna do.
__________________
Cassette tape -> iBuds
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07-01-2009, 08:03 AM
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500+ Head-Fi'er
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Join Date: Jul 2007
Posts: 578
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How hot is ur room now?
mine is 31+°C throughout the whole year
and can goes up to 34 sometimes
and it have not kill any of my gear
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07-01-2009, 08:53 AM
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Headphoneus Supremus
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Join Date: Oct 2008
Location: New Haven, CT
Posts: 1,709
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I don't think that you have had it long enough for this to happen, but if you leave it on 24/7, it is possible that a part got fried, in the DAC or otherwise. Heat is an enemy of all electronics, and it is possible that the heat pushed it over the edge. It is unlikely, however.
__________________
ALAC --> Macbook --> Fubar II DAC --> AMB Labs Cavali-Kan Kumisa III DIY --> Grado RS-1
Do you have a contingency plan in the event of a zombie apocalypse?
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07-01-2009, 10:04 AM
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Headphoneus Supremus
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Join Date: Oct 2008
Location: israel
Posts: 1,522
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i don't know about you guys,but i turn off ALL my gear when i am not listening. i never got the point of leaving it on all the time. can someone please enlight me about this?
__________________
home rig
TRANSPORTS- marantz CD5001 , computer (foobar+asio)
IC'S- dayton optical , straight wire mini to rca , cardas 6" mini to mini
DAC- headroom ultra micro
AMPS- headroom ultra micro, EF1, earmax pro
HEADPHONES- AH-D5000, RS-1, HD650
portable D2 + PK2
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07-02-2009, 03:08 AM
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Headphoneus Supremus
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Join Date: Feb 2008
Location: GreaterTorontoArea in Sub-Urbaine hell
Posts: 3,113
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It sounds like something went pfffft. It happens ....and it's a bummer each and every time it happens. In order to properly diagnose the fault it'll have to be put on a test bench with the proper tools to troubleshoot it.
Get a hold of Keces and see what they can arrange for you (if it's under warranty or not).
Good luck !
Peete.
__________________
Cans :HD650, AKG 240M (HD650 DIY cables SE and Balanced)
Desktop amps : LD MK III (6H30P-i DR's + DIY mods, Jaycar DIY kit amp (major DIY mods), 2 X Audio-gd Compass (test prototype,final version), Audio-gd C-2C W/ Stepped pot Upgrade, Audio-gd Phoenix SS balanced preamp/headamp.
Transports: Auzen Prelude PCI 7.1 SC/ASIO native driver using Media Monkey (all EAC ripped FLAC/Wav), Vanguard CDM12 Pro (BNC mod), HK HD720 (completely upgraded), Audio-gd CD7 Transport.
Sources: FrankenDAC DIY 24/192 dac (HDAMs/Teflon/PIO cap mod), Compass DAC, See Corp Vintage UK TT(Mission arm/Ortofon OM20S MM cart), Yaqin MS12B tube phono preamp, TEAC V530X Tape deck, Audio-gd Reference 1 DAC. C2C DIY pot mod http://www.head-fi.org/forums/f6/ste...1/#post5846722
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07-02-2009, 03:21 AM
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Headphoneus Supremus
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Join Date: Jun 2008
Location: Los Angeles, California
Posts: 2,683
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The DA152 should definitely be under warranty since it was purchased on November 29th of 2008.
__________________
Cassette tape -> iBuds
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07-02-2009, 04:22 AM
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Headphoneus Supremus
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Join Date: Jan 2009
Location: Under Your Bed
Posts: 2,294
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Quote:
Originally Posted by plonter
i don't know about you guys,but i turn off ALL my gear when i am not listening. i never got the point of leaving it on all the time. can someone please enlight me about this?
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It's an amazing four letter word that starts with the letter "L"!
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07-02-2009, 11:45 AM
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Headphoneus Supremus
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Join Date: Oct 2008
Location: israel
Posts: 1,522
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Quote:
Originally Posted by Ishcabible
It's an amazing four letter word that starts with the letter "L"!
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sorry for the noobiness but i didn't quite get it... what does the "L" means?
__________________
home rig
TRANSPORTS- marantz CD5001 , computer (foobar+asio)
IC'S- dayton optical , straight wire mini to rca , cardas 6" mini to mini
DAC- headroom ultra micro
AMPS- headroom ultra micro, EF1, earmax pro
HEADPHONES- AH-D5000, RS-1, HD650
portable D2 + PK2
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