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How to test a headphone for a channel imbalance?
Without actually listening to the phones i guess it'll be hard for others to guess what the actual problem is. My uneducated guess is that it's either a bad headphone jack or else it should be the drivers as i can't think of any other issues that might cause this change. Perhaps some other...- Categg
- Post #10
- Forum: Headphones (full-size)
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How to test a headphone for a channel imbalance?
Did u mean channel volume imbalance? I suppose you could try measuring both sides with a SPL meter using a mono source.. or else you could try listening to it with a mono source and try swapping Left and Right on your head and see if the center image shifts in particular to one side or not.- Categg
- Post #8
- Forum: Headphones (full-size)
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new little dot 3 can't get it to power on??
If fuse is intact, try wiggling/replugging the power cord connector. I had a false alarm once when i thought the amp was dead, turns out to be a bad connection at the power cord.- Categg
- Post #3
- Forum: Headphone Amps (full-size)
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Just got the HD650 and having mixed feelings, help!
Not sure about the E10 but i do have a little dot Mk IV SE and the HD650. Did u try tube rolling already? I found that rolling different tubes really changes the whole sound presentation in ways i never thought possible before. If rolling in a 10 dollar pair of tubes get u the sound you want...- Categg
- Post #3
- Forum: Headphones (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
A quick google gave me this: 12AT7 / ECC81 12AT7's have a lower voltage gain than 12AX7's. They have a higher plate current and transconductance, making it popular for guitarists who want cleaner headroom, and lower the gain in their amp. 12AT7's are also great for hi-fi...- Categg
- Post #407
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
Thanks mordy and Acapella 11. I guess since i already have the 6H30Pi tubes as the stock tubes on my LD Mk IV SE i shall only consider swapping power tubes if i exhaust driver tubes options. Speaking of burn in. I stopped keeping tabs on my Telefunken 6AK5W after 200 hours of hoping that...- Categg
- Post #403
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
Quote: Hi Mordy, just wondering if you have compared the 6N6P power tubes with the 6H30Pi and if you have, is there any other difference aside from sounding darker? From what i gathered in the thread i concluded that 1) 6H30Pi should be the best sounding power tube (putting aside the DR...- Categg
- Post #395
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
It's funny since i bought my Sylvania JAN5654 from him, i never thought of asking him if he has any of the W versions though i suppose that can wait till i have tried out the non-W version first. I'm still pretty much trying to find the darkest sounding tube within the 5654 family.- Categg
- Post #387
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
My Sylvania JAN 5654s wont arrive until a week later, hopefully they'll turn out nice enough. In the meantime still hunting for a pair of 5654 W version.. dbtubes.com seems abit pricey for me at this point, if ebay fails to turn up any 5654W tubes then only i'll purchase them from that site.- Categg
- Post #385
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
Thanks for your insights! I guess this means that the tube hunting shall continue for now.. sticking to the RCA's 5654 for now till my Sylvania JAN 5654 arrives :)- Categg
- Post #383
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
Is there the possibility that there's a Sylvania JAN 5654 black plate with no W, because that's what my latest ebay purchase seller described it as.- Categg
- Post #381
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
Good info, thanks for sharing this!- Categg
- Post #378
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
Acapella 11, Am using the stock Electro Harmonix 6H30Pi Gold tubes that came with my Mk IV SE. Seems like it should be the best value option around so i don't think i'm gonna roll that to the DR tubes.- Categg
- Post #365
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
Sounds like the Sylvania JAN 5654W is something i gotta try out next. I have the Telefunken 6AK5W but from your description it looks like it's similar sounding to the GE JAN 5654W, albeit with more bass presence. Instruments and voices really seem to pop out from the space around me the bass is...- Categg
- Post #357
- Forum: Headphone Amps (full-size)
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little dot mk3 w/NFB-12
If you're not ready to explore with tube swapping, sticking to solid state amps should be relatively safer. On the other hand once I've tried going tubes for my HD650 my M3 has been left alone for quite some time, but of course that was not before i tried out a bunch of tubes before i found what...- Categg
- Post #6
- Forum: Headphone Amps (full-size)
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Does anybody want me to do a review of the whole Alessandro line-up?
Definitely of interest to me!- Categg
- Post #5
- Forum: Headphones (full-size)
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Dirty Little Secret of Headphones
KL branch, i havent been to the penang branch before.- Categg
- Post #46
- Forum: Headphones (full-size)
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Dirty Little Secret of Headphones
Quote: Yeap, indeed. Great place to hang out! Quote: Very true. Hoping to be able to make up my mind once and for all after i try out the HD700...- Categg
- Post #44
- Forum: Headphones (full-size)
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Dirty Little Secret of Headphones
I did demo the HD800 for a few hours, but i was left with a very mixed feeling. On one hand the detail retrieval from the treble right down to the bass is so clean and well defined. On the other hand i felt that i just didn't click with the sound signature of the HD800. Waiting impatiently to...- Categg
- Post #41
- Forum: Headphones (full-size)
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Dirty Little Secret of Headphones
Reading this makes me feel like not going for the HD700/800 and just get a grado/alesandro if i want to get my ears pierced with treble. But then there's the soundstage issue to contend with.. ahh decisions decisions...- Categg
- Post #39
- Forum: Headphones (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
I just got my Telefunken 6AK5W tubes a day ago and i think they have similar traits to the voskhod 6J1P-EV tubes, but granted they are not burned in yet i can't give the verdict over which is the better tube so far. So far my initial impressions for the Telefunken 6AK5W are detailed, bright...- Categg
- Post #336
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
I bookmarked that link when mordy posted it quite some time ago. And yeah after going through all the little dot threads that i only know that i should look for the original russian wordings and not the translations of it to get the good and cheap stuff! So i guess i do owe everyone who's been...- Categg
- Post #332
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
Try this link. http://www.ebay.com/itm/2-pc-6J1P-EV-EF95-6F32-6AK7-Gold-Platinum-grid-NIB-/130436695928?pt=Vintage_Electronics_R2&hash=item1e5ea20778#ht_5182wt_1163- Categg
- Post #330
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
Thanks for the info, i've given them around 4-5 hours of play time and probably some adjustment on my ears i think i can live with them after all. They work much better as a pre amp now due to cleaner bass and more solid highs!- Categg
- Post #328
- Forum: Headphone Amps (full-size)
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Little Dot Tube Amps: Vacuum Tube Rolling Guide
I just got a pair of gold-platinum grid with gold pins 6J1P-EV made in 1977. Still on the first hour of burn in but i have to say it sounds much brighter than my CV4010s, almost solid state like.. I'm wondering if this is the way it is meant to sound or further burn in will alter the character...- Categg
- Post #326
- Forum: Headphone Amps (full-size)