Carlsan
Headphoneus Supremus
- Joined
- Mar 6, 2009
- Posts
- 3,046
- Likes
- 1,100
Sounds like you have a problem. Never had that problem with mine.
I would also contact Schiit directly.
I would also contact Schiit directly.
I drive my LCD2 and T1 with the Lyr. Is it normal that the Lyr is not complete dead silent at lowest volume position? I can hear a very light hum in quiet environment, it don't disturb when music plays but it is there when i exact listen to the headphones. I tested with a few tubes, same result. It not depends on the source because i have disconnect my CDP. My other amplifiers are dead silent. With a low impendance phone like W1000x and SRH940 the hum is loud but this is normal because Lyr design is only for high impendance.
I thought it only can be a ground issue when source is connected. I saw RCA ground loop isolator cable. But the problem is there without connected to source.
I tested a few electrical socket in the house. What can I do?
Hi everyone
Sorry if this has been answered elsewhere.
I have just bought a new Schiit Lyr from a UK shop and I love it. However I am having problems with it. It is the UK voltage version. Can anyone advise me if the following is normal for this amp:
The amp is vibrating, not enough to hear but when you touch it, especially over where the transformers are I can feel a noticeable vibration. This happens all the time it is switched on. Is this the "hum" I've read about on-line that some people get?
When the volume is turned off but headphones still plugged in I can hear a faint but slightly annoying intermittent electrical high pitched noise at night time when there are no environmental noised to mask it.
The power cord doesn't fit properly into it's socket on the rear of the unit, it fell out once last night.
Equipment: Rega Apollo cd player, Schiit Lyr, Audeze LCD-2 headphones.
Many thanks
I drive my LCD2 and T1 with the Lyr. Is it normal that the Lyr is not complete dead silent at lowest volume position? I can hear a very light hum in quiet environment, it don't disturb when music plays but it is there when i exact listen to the headphones. I tested with a few tubes, same result. It not depends on the source because i have disconnect my CDP. My other amplifiers are dead silent. With a low impendance phone like W1000x and SRH940 the hum is loud but this is normal because Lyr design is only for high impendance.
Yes, the humming is caused by the AC voltage. Your home wiring possibly is connected to ground through different paths (most is), hence there's a ground loop. One way to remove the ground loop is use an isolation power supply. But first you can try unplugging other appliances if they share the same line as the socket you connect the amp to.
Yes, the humming is caused by the AC voltage. Your home wiring possibly is connected to ground through different paths (most is), hence there's a ground loop. One way to remove the ground loop is use an isolation power supply. But first you can try unplugging other appliances if they share the same line as the socket you connect the amp to.
You can temporarily try a cheater plug, just to see if the hum goes away. An isolation transformer is your best long-term solution.
I tried a other power cable. Same problem. I think It's a design problem of the Lyr or a tube noise. As I say It's very quiet. All my other amplifier don't make problems.
Isolation Transformer?
Can anybody aknowledge that Lyr is absoulety dead silent with LCD2?
I am thinking of getting some proper feets to raise Lyr about half inch to an inch high. I think Lyr runs cooler when slightly raise. I am currently using Lego blocks to raise Lyr. Yup! Lego blocks and it works but it is time to get some proper feets.
Found below Rubber Bumper Non-skid Feet at amazon.com. Looks like Lyr's stock rubber feets but bigger. Does anyone know if these feets are able to with stand the hot temperature of Lyr? Can anyone recommend any value for money feets which suitable for Lyr? Thanks.
http://www.amazon.com/gp/product/B0042U6ZDU/ref=ox_sc_act_title_4?ie=UTF8&m=A1EPE8IE7JPHY4
Jason Stoddard from Schiit wrote me an answer: "Sounds like it might be normal low-level hum." This means for me Lyr is never dead silent. As i told it was a very low noise. Not a typical noticeable 50hz hum. So everything is okay. It's a shame that the Lyr produce a very noticeble noise with my low impendance phone except I use a 120ohm resistor. But with T1 and LCD2 it sounds great!