NEED HELP IDENTIFYING PROBLEM PLZ!
Nov 22, 2008 at 11:11 PM Thread Starter Post #1 of 12

punk_guy182

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I have sound imbalance and I hear more sound in one can.
frown.gif

I'd like to correct that annoying problem.

My setup is: Comp (FUBAR +WASAPI), coaxial from mobo (bit perfect capable), ZERO DAC (Earth HDAM), LD MK IV SE (5654 driver tubes), Sennheiser HD595.

The facts are:
- Driver tubes are new, balanced, tested by Yen Audio and still burning.
- Cans are not the issue because sound is well balanced on other systems.

My questions are:
- Could the source of the problem be the DAC portion of the ZERO?
- Could the source of the problem be the power tubes?
- Has anyone heard of previous cases of sound imbalance with the MK IV SE?
- How can I get a clear balanced sound?
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Nov 22, 2008 at 11:32 PM Post #2 of 12

Tridacnid

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Same thing happened to me when my LD MKIII power tubes were on their way out.

Try switching the 6N6Ps (Make sure the amp if off!). Then turn it on and see if it switched the imbalance to the other channel.
 
Nov 22, 2008 at 11:43 PM Post #3 of 12

punk_guy182

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I'll try that when I get home tonight.
Did David from LD send you new power tubes w/o purchase?
 
Nov 23, 2008 at 1:17 AM Post #5 of 12

punk_guy182

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Do you have a good power tube to recomend?
I'm NOT looking for a very lush or warm sound.
I want dynamics, clarity, sharpness and a in your face kind of sound.
I want to hear it all and well and I want it heavy and powerful. NOT laid back.

P-S I'm switching to solid state as soon as LD makes a headphoneamp that has a very good preamp stage.
 
Nov 23, 2008 at 2:28 AM Post #7 of 12

punk_guy182

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The MK V doesn't do preamp.
 
Nov 23, 2008 at 3:36 AM Post #8 of 12

Tridacnid

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Why no warm sound? I listen to metal (and a lot of other things), and I enjoy it much more when the guitars are practically dripping with grind and midrange. Maybe I'm just crazy.

Maybe shoot Prickley Peete or Penchum a PM. I don't know anything about the LD MKIV.
 
Nov 23, 2008 at 5:31 AM Post #9 of 12

punk_guy182

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Yes, I agree for metal music but not for techno or punk rock music.
 
Nov 23, 2008 at 5:48 PM Post #11 of 12

olblueyez

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www.tubeworld.com

6AK5W=5654=EF95

(also see 403A and 403B Western Electric and 5654 stock)

Little Dot MKIII Headphone amp
Little Dot MKIV SE headphone amp
Little Dot Hybrid I+

- best sounding sub is 403B Western Electric

MULLARD:
-------
1 Pair $50) EF95 Mullard Whyteleafe plant NOS D getter halo 1958 same date codes in white boxes (best pair)

1 tube $15) 5654=6AK5 Amperex Great Britain by Mullard NOS 1968
1 tube $15) EF95=6AK5 Mullard NOS 1967, similiar build to 1968 5654 listed above
1 tube $15) EF95=6AK5 Amperex Bugle Boy England by Mullard NOS 1964 D getter halo
1 tube $12) EF95=6AK5 Amperex Bugle Boy Great Britain like new 1963 D getter halo

US MADE 1940's - 1950's "D" getter halo: MATCHED PAIRS
---------------------------------------
4 pairs $20/pair) JHY-6AK5 CBS-Hytron black plate NOS "D" getter 1953, printing is smeared on glass from cleaning pins, original boxes
1 pair $30) JRP-6AK5 Raytheon JAN NOS 1945 original boxes (oldest pair)
1 pair $20) JAN-CHS-6AK5 Sylvania NOS 1951 original boxes
1 pair $20) 5654/6AK5W/6096 GE NOS D getter halo gray plate 1950's original boxes

1950's SINGLE TUBES:
-------------------
1 tube $12) 6AK5 Sylvania D getter 1945
1 tube $8) 6AK5 RCA branded GE chrome plate NOS D getter halo 1958
1 tube $8) 6AK5 Hit Ray JAPAN 1950's black plate D getter halo original box

6AK5 US Brands NOS 1960's - 1970's:
----------------------------------
PAIRS:
-----
10 pairs $13/pair) 6AK5 RCA gray plate NOS 1964 same date codes (best in you need multiple pairs)
(10 for $39 unmatched SPECIAL)

2 pairs $13/pair) 6AK5 RCA black plate NOS
3 pairs $13/pair) 6AK5 Raytheon gray plate NOS
1 pair $13) 6AK5 GE gray plate NOS

SINGLE TUBES:
------------
2) GE 1960's - 1970's $4.25
2) Raytheon JAPAN gray plate $3.95
1 tube $10) GB-5654 Sylvania gold brand nickel pins in Gold Brand boxes around 1970

5654 USED/PULLOUTS:
------------------
400) 5654=6AK5W GE OR SYLVANIA used/pullouts from equipment (most are GE or GE JAN)
PULLOUTS AS/IS UNTESTED:
100 for $15 mixed brands, most are GE
10 for $3
 

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