Kaldas Research RR 1 Conquest ($500 Electrostatic)
post-15461507
Post #436 of 553

JLoud

500+ Head-Fier
Joined
Aug 31, 2016
Messages
776
Reaction score
609
Location
Michigan
Joined
Aug 31, 2016
Location
Michigan
Posts
776
Likes
609
I have had mine for about 6 months and have never noticed any imbalance. Cold it be an issue with your amp? If it goes away after warming up this sounds more like a hardware issue. Not uncommon for electronics to change characteristics after warming up. But have not heard of it with transducers.
 
     Share This Post       
  • Like
Reactions: TYATYA
post-15461519
Post #437 of 553

kman1211

Headphoneus Supremus
Joined
Feb 13, 2012
Messages
4,679
Reaction score
2,373
Location
Edmond, OK
Joined
Feb 13, 2012
Location
Edmond, OK
Posts
4,679
Likes
2,373
Age
30
Curious as to people's thoughts on how long these take to warm up at each listening session. What's bugging me is the right channel takes a considerable amount of time to reach the same output level as the left channel. So I have to turn my system on and play music for a good half hour before I can put the headphones on. Otherwise one channel is noticeably quieter than the other, they seem to be playing at similar levels after this warm up period though.
Shouldn't be taking that long to warm up. I had to replace the drivers on mine because mine had an issue where it had a notable bass imbalance with the left side lacking bass presence and no amount of charge up would fix it and sometimes it took a while to charge up on the left and would be quite quiet for a few minutes. The replacement drivers are balanced the instant I turn on the energizer.
 
     Share This Post       
  • Like
Reactions: Zoide
post-15461525
Post #438 of 553

arteom

1000+ Head-Fier
Joined
Sep 5, 2006
Messages
1,316
Reaction score
91
Joined
Sep 5, 2006
Posts
1,316
Likes
91
I have had mine for about 6 months and have never noticed any imbalance. Cold it be an issue with your amp? If it goes away after warming up this sounds more like a hardware issue. Not uncommon for electronics to change characteristics after warming up. But have not heard of it with transducers.
Tried it on two amps, same behavior.

Shouldn't be taking that long to warm up. I had to replace the drivers on mine because mine had an issue where it had a notable bass imbalance with the left side lacking bass presence and no amount of charge up would fix it and sometimes it took a while to charge up on the left and would be quite quiet for a few minutes. The replacement drivers are balanced the instant I turn on the energizer.
Yeah, it doesn't feel right as is. I reached out to Kaldas support email, they said it's normal. Going to reach out to Aumkar, see if he can do anything.
 
     Share This Post       
post-15461545
Post #439 of 553

gefski

1000+ Head-Fier
Joined
Apr 29, 2003
Messages
1,167
Reaction score
808
Location
Pacific Northwest
Joined
Apr 29, 2003
Location
Pacific Northwest
Posts
1,167
Likes
808
Curious as to people's thoughts on how long these take to warm up at each listening session. What's bugging me is the right channel takes a considerable amount of time to reach the same output level as the left channel. So I have to turn my system on and play music for a good half hour before I can put the headphones on. Otherwise one channel is noticeably quieter than the other, they seem to be playing at similar levels after this warm up period though.
Get one of these to precisely determine channel balance or phase issues. Then it’s easy through elimination to sort through and find the problem.
654BF03C-D7CF-44FD-9709-E351424611F1.jpeg
 
     Share This Post       
post-15461584
Post #440 of 553

arteom

1000+ Head-Fier
Joined
Sep 5, 2006
Messages
1,316
Reaction score
91
Joined
Sep 5, 2006
Posts
1,316
Likes
91
Get one of these to precisely determine channel balance or phase issues. Then it’s easy through elimination to sort through and find the problem.
I've tested with various testing clips from the web, youtube. Honestly I don't think any of it is essential in my case. In the end here's what it came down to, turn on system, play music, put on headphones. Left is much louder than right, which is almost inaudible. Flip them so right is now on left ear and left is on right ear, problem follows the right driver to left ear. Let music play for 5 minutes and return to it, same behavior as above is observed, then again in 10, 15, 25, and 30 minutes. The other thing I've done is swap L/R connections coming from the DAC, to see if the issue is with a quiet signal. If it was, the issue would have now be in the left driver, that was not the case. Also, again, two different amps, one had a balance control, the other did not. The one with balance control, turning balance makes little difference when turned right, a major difference when turned left.
 
Last edited:
     Share This Post       
  • Like
Reactions: Zoide and gefski
post-15461612
Post #441 of 553

JLoud

500+ Head-Fier
Joined
Aug 31, 2016
Messages
776
Reaction score
609
Location
Michigan
Joined
Aug 31, 2016
Location
Michigan
Posts
776
Likes
609
I assume you swapped cables between headphone connection. As in put left headphone cable on right earcup and vice versa
 
     Share This Post       
  • Like
Reactions: TYATYA
post-15461618
Post #442 of 553

arteom

1000+ Head-Fier
Joined
Sep 5, 2006
Messages
1,316
Reaction score
91
Joined
Sep 5, 2006
Posts
1,316
Likes
91
I assume you swapped cables between headphone connection. As in put left headphone cable on right earcup and vice versa
I tested using two separate cables. I found the original cable to be too short, ordered the longer cable from Aumkar. No change between the two cables.
 
     Share This Post       
  • Like
Reactions: Zoide
post-15461952
Post #443 of 553

JLoud

500+ Head-Fier
Joined
Aug 31, 2016
Messages
776
Reaction score
609
Location
Michigan
Joined
Aug 31, 2016
Location
Michigan
Posts
776
Likes
609
Definitely sounds like the driver. Bummer. I’m sure he will take care of it but still an inconvenience.
 
     Share This Post       
post-15462503
Post #444 of 553

Hubert481

100+ Head-Fier
Joined
Sep 2, 2012
Messages
446
Reaction score
87
Joined
Sep 2, 2012
Posts
446
Likes
87
I tested using two separate cables. I found the original cable to be too short, ordered the longer cable from Aumkar. No change between the two cables.
Did you crosscheck left and right? Sorry, i could not read therefore, you put the right cable on the left side and ...
 
     Share This Post       
post-15462632
Post #445 of 553

arteom

1000+ Head-Fier
Joined
Sep 5, 2006
Messages
1,316
Reaction score
91
Joined
Sep 5, 2006
Posts
1,316
Likes
91
Did you crosscheck left and right? Sorry, i could not read therefore, you put the right cable on the left side and ...
I tested using two different cables, if the problem was in the cable, it would not have followed into the second set of cables. Doing L&R swap would also test to see if the issue may be with the amplifier. If the issue was with amp, the issue would follow the cable to the opposite channel. However, as said before, I've tested using two amps. It would be really strange if both amps exhibited the same issue with the same channel. All that said, Kaldas support in their emails said the issue was likely due to parasitic charge, no way of telling if and when the issue might correct itself.

Aumkar is working on getting me a replacement, which is very much appreciated.
 
     Share This Post       
  • Like
Reactions: Zoide
post-15463072
Post #446 of 553

JLoud

500+ Head-Fier
Joined
Aug 31, 2016
Messages
776
Reaction score
609
Location
Michigan
Joined
Aug 31, 2016
Location
Michigan
Posts
776
Likes
609
I don't know if anyone mentioned this, but I always discharge the pins after every use. As in individually touch each pin with my finger tip until slight ticking noise goes away. You have to keep the headphones on to hear it. I unplug from amp and then discharge the pins. Sometimes it takes three or four times around to completely eliminate the ticking sound. But this has always cleared up any squealing or other unwanted sounds from the drivers. May not apply to the problem being discussed but a good habit to get into.
 
     Share This Post       
post-15463092
Post #447 of 553

arteom

1000+ Head-Fier
Joined
Sep 5, 2006
Messages
1,316
Reaction score
91
Joined
Sep 5, 2006
Posts
1,316
Likes
91
I don't know if anyone mentioned this, but I always discharge the pins after every use. As in individually touch each pin with my finger tip until slight ticking noise goes away. You have to keep the headphones on to hear it. I unplug from amp and then discharge the pins. Sometimes it takes three or four times around to completely eliminate the ticking sound. But this has always cleared up any squealing or other unwanted sounds from the drivers. May not apply to the problem being discussed but a good habit to get into.
Yeah I've noticed this too, sometimes it taking several attempts. Have been doing the discharge procedure per the manual since I got them first out of the box. Storing them in the bag they came in, etc. Parasitic charge is something I would have expected (but hoped wouldn't) develop after some time of continual use. Not fresh out of the box.
 
     Share This Post       
  • Like
Reactions: Zoide
post-15464359
Post #448 of 553

VRacer-111

1000+ Head-Fier
Joined
May 7, 2016
Messages
1,273
Reaction score
1,170
Location
Texas
Joined
May 7, 2016
Location
Texas
Posts
1,273
Likes
1,170
Sounds like it could be a stuck diaphragm to stator (imbalance issue - had this before on STAX 404 Limited and a new Nectar Sound). Unplug them and discharge by touching all pins. Once fully discharged, disconnect the cable and take the offending driver side and firmly SMACK the cup housing in-line with the plane of the driver - so smack the SIDE not the cloth opening/earpad ends. That's about all you can do other than sending them in to get looked at.
 
     Share This Post       
post-15464392
Post #449 of 553

arteom

1000+ Head-Fier
Joined
Sep 5, 2006
Messages
1,316
Reaction score
91
Joined
Sep 5, 2006
Posts
1,316
Likes
91
Sounds like it could be a stuck diaphragm to stator (imbalance issue - had this before on STAX 404 Limited and a new Nectar Sound). Unplug them and discharge by touching all pins. Once fully discharged, disconnect the cable and take the offending driver side and firmly SMACK the cup housing in-line with the plane of the driver - so smack the SIDE not the cloth opening/earpad ends. That's about all you can do other than sending them in to get looked at.
That's an interesting thought. I'm not sure, but I think there were some instances I've heard the problem channel produce low frequency thumps (almost like a very low muted kickdrum) when no music is playing and amp is on. The thought that came to mind is something being stuck. But didn't feel qualified/comfortable to troubleshoot that.
 
     Share This Post       
post-15479492
Post #450 of 553

arteom

1000+ Head-Fier
Joined
Sep 5, 2006
Messages
1,316
Reaction score
91
Joined
Sep 5, 2006
Posts
1,316
Likes
91
Got a second set of drivers from Kaldas, thanks very much to @MrTechAgent for the top notch customer service. I had them in for a day, they sounded fine. The day after the right driver was dead silent. There is something else going on, going to examine my system as best I can and see where I end up. I'm not sure the issue was ever with any of the drivers from Kaldas. I did reach out to Aumkar to let him know of this, and as he always has been, he was very supportive and offered some advice on how to proceed with this.
 
     Share This Post       
  • Like
Reactions: Zoide

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top